July 2018 - LKP - Ml01.01.Org

Re: [LKP] [rcu] kernel BUG at include/linux/pagemap.h:149!

by Frederic Weisbecker

On Fri, Sep 11, 2015 at 10:19:47AM +0800, Boqun Feng wrote: > Subject: [PATCH 01/27] rcu: Don't disable preemption for Tiny and Tree RCU > readers > > Because preempt_disable() maps to barrier() for non-debug builds, > it forces the compiler to spill and reload registers. Because Tree > RCU and Tiny RCU now only appear in CONFIG_PREEMPT=n builds, these > barrier() instances generate needless extra code for each instance of > rcu_read_lock() and rcu_read_unlock(). This extra code slows down Tree > RCU and bloats Tiny RCU. > > This commit therefore removes the preempt_disable() and preempt_enable() > from the non-preemptible implementations of __rcu_read_lock() and > __rcu_read_unlock(), respectively. > > For debug purposes, preempt_disable() and preempt_enable() are still > kept if CONFIG_PREEMPT_COUNT=y, which makes the detection of sleeping > inside atomic sections still work in non-preemptible kernels. > > Signed-off-by: Boqun Feng <boqun.feng(a)gmail.com> > Signed-off-by: Paul E. McKenney <paulmck(a)linux.vnet.ibm.com> > --- > include/linux/rcupdate.h | 6 ++++-- > include/linux/rcutiny.h | 1 + > kernel/rcu/tree.c | 9 +++++++++ > 3 files changed, 14 insertions(+), 2 deletions(-) > > diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h > index d63bb77..6c3cece 100644 > --- a/include/linux/rcupdate.h > +++ b/include/linux/rcupdate.h > @@ -297,12 +297,14 @@ void synchronize_rcu(void); > > static inline void __rcu_read_lock(void) > { > - preempt_disable(); > + if (IS_ENABLED(CONFIG_PREEMPT_COUNT)) > + preempt_disable(); preempt_disable() is a no-op when !CONFIG_PREEMPT_COUNT, right? Or rather it's a barrier(), which is anyway implied by rcu_read_lock(). So perhaps we can get rid of the IS_ENABLED() check?

1 year, 10 months

4
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Test monitoring on custom github repo

by Thomas Garnier

Hi, I am working on KASLR (PIE for x86_64). I previously used Kees (CCed) branches for lkp bot testing but someone told be I could ask you to add a custom github path to monitor all branches on it. I pushed my changes to: https://github.com/thgarnie/linux (kasrl_pie_v2 right now) Can you add it? Anything I need to do? Thanks, -- Thomas

2 years, 2 months

3
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0 / 0

[lkp-robot] [brd] 316ba5736c: aim7.jobs-per-min -11.2% regression

by kernel test robot

Greeting, FYI, we noticed a -11.2% regression of aim7.jobs-per-min due to commit: commit: 316ba5736c9caa5dbcd84085989862d2df57431d ("brd: Mark as non-rotational") https://git.kernel.org/cgit/linux/kernel/git/axboe/linux-block.git for-4.18/block in testcase: aim7 on test machine: 40 threads Intel(R) Xeon(R) CPU E5-2690 v2 @ 3.00GHz with 384G memory with following parameters: disk: 1BRD_48G fs: btrfs test: disk_rw load: 1500 cpufreq_governor: performance test-description: AIM7 is a traditional UNIX system level benchmark suite which is used to test and measure the performance of multiuser system. test-url: https://sourceforge.net/projects/aimbench/files/aim-suite7/ Details are as below: --------------------------------------------------------------------------------------------------> ========================================================================================= compiler/cpufreq_governor/disk/fs/kconfig/load/rootfs/tbox_group/test/testcase: gcc-7/performance/1BRD_48G/btrfs/x86_64-rhel-7.2/1500/debian-x86_64-2016-08-31.cgz/lkp-ivb-ep01/disk_rw/aim7 commit: 522a777566 ("block: consolidate struct request timestamp fields") 316ba5736c ("brd: Mark as non-rotational") 522a777566f56696 316ba5736c9caa5dbcd8408598 ---------------- -------------------------- %stddev %change %stddev \ | \ 28321 -11.2% 25147 aim7.jobs-per-min 318.19 +12.6% 358.23 aim7.time.elapsed_time 318.19 +12.6% 358.23 aim7.time.elapsed_time.max 1437526 ± 2% +14.6% 1646849 ± 2% aim7.time.involuntary_context_switches 11986 +14.2% 13691 aim7.time.system_time 73.06 ± 2% -3.6% 70.43 aim7.time.user_time 2449470 ± 2% -25.0% 1837521 ± 4% aim7.time.voluntary_context_switches 20.25 ± 58% +1681.5% 360.75 ±109% numa-meminfo.node1.Mlocked 456062 -16.3% 381859 softirqs.SCHED 9015 ± 7% -21.3% 7098 ± 22% meminfo.CmaFree 47.50 ± 58% +1355.8% 691.50 ± 92% meminfo.Mlocked 5.24 ± 3% -1.2 3.99 ± 2% mpstat.cpu.idle% 0.61 ± 2% -0.1 0.52 ± 2% mpstat.cpu.usr% 16627 +12.8% 18762 ± 4% slabinfo.Acpi-State.active_objs 16627 +12.9% 18775 ± 4% slabinfo.Acpi-State.num_objs 57.00 ± 2% +17.5% 67.00 vmstat.procs.r 20936 -24.8% 15752 ± 2% vmstat.system.cs 45474 -1.7% 44681 vmstat.system.in 6.50 ± 59% +1157.7% 81.75 ± 75% numa-vmstat.node0.nr_mlock 242870 ± 3% +13.2% 274913 ± 7% numa-vmstat.node0.nr_written 2278 ± 7% -22.6% 1763 ± 21% numa-vmstat.node1.nr_free_cma 4.75 ± 58% +1789.5% 89.75 ±109% numa-vmstat.node1.nr_mlock 88018135 ± 3% -48.9% 44980457 ± 7% cpuidle.C1.time 1398288 ± 3% -51.1% 683493 ± 9% cpuidle.C1.usage 3499814 ± 2% -38.5% 2153158 ± 5% cpuidle.C1E.time 52722 ± 4% -45.6% 28692 ± 6% cpuidle.C1E.usage 9865857 ± 3% -40.1% 5905155 ± 5% cpuidle.C3.time 69656 ± 2% -42.6% 39990 ± 5% cpuidle.C3.usage 590856 ± 2% -12.3% 517910 cpuidle.C6.usage 46160 ± 7% -53.7% 21372 ± 11% cpuidle.POLL.time 1716 ± 7% -46.6% 916.25 ± 14% cpuidle.POLL.usage 197656 +4.1% 205732 proc-vmstat.nr_active_file 191867 +4.1% 199647 proc-vmstat.nr_dirty 509282 +1.6% 517318 proc-vmstat.nr_file_pages 2282 ± 8% -24.4% 1725 ± 22% proc-vmstat.nr_free_cma 357.50 +10.6% 395.25 ± 2% proc-vmstat.nr_inactive_file 11.50 ± 58% +1397.8% 172.25 ± 93% proc-vmstat.nr_mlock 970355 ± 4% +14.6% 1111549 ± 8% proc-vmstat.nr_written 197984 +4.1% 206034 proc-vmstat.nr_zone_active_file 357.50 +10.6% 395.25 ± 2% proc-vmstat.nr_zone_inactive_file 192282 +4.1% 200126 proc-vmstat.nr_zone_write_pending 7901465 ± 3% -14.0% 6795016 ± 16% proc-vmstat.pgalloc_movable 886101 +10.2% 976329 proc-vmstat.pgfault 2.169e+12 +15.2% 2.497e+12 perf-stat.branch-instructions 0.41 -0.1 0.35 perf-stat.branch-miss-rate% 31.19 ± 2% +1.6 32.82 perf-stat.cache-miss-rate% 9.116e+09 +8.3% 9.869e+09 perf-stat.cache-misses 2.924e+10 +2.9% 3.008e+10 ± 2% perf-stat.cache-references 6712739 ± 2% -15.4% 5678643 ± 2% perf-stat.context-switches 4.02 +2.7% 4.13 perf-stat.cpi 3.761e+13 +17.3% 4.413e+13 perf-stat.cpu-cycles 606958 -13.7% 523758 ± 2% perf-stat.cpu-migrations 2.476e+12 +13.4% 2.809e+12 perf-stat.dTLB-loads 0.18 ± 2% -0.0 0.16 ± 9% perf-stat.dTLB-store-miss-rate% 1.079e+09 ± 2% -9.6% 9.755e+08 ± 9% perf-stat.dTLB-store-misses 5.933e+11 +1.6% 6.029e+11 perf-stat.dTLB-stores 9.349e+12 +14.2% 1.068e+13 perf-stat.instructions 11247 ± 11% +19.8% 13477 ± 9% perf-stat.instructions-per-iTLB-miss 0.25 -2.6% 0.24 perf-stat.ipc 865561 +10.3% 954350 perf-stat.minor-faults 2.901e+09 ± 3% +9.8% 3.186e+09 ± 3% perf-stat.node-load-misses 3.682e+09 ± 3% +11.0% 4.088e+09 ± 3% perf-stat.node-loads 3.778e+09 +4.8% 3.959e+09 ± 2% perf-stat.node-store-misses 5.079e+09 +6.4% 5.402e+09 perf-stat.node-stores 865565 +10.3% 954352 perf-stat.page-faults 51.75 ± 5% -12.5% 45.30 ± 10% sched_debug.cfs_rq:/.load_avg.avg 316.35 ± 3% +17.2% 370.81 ± 8% sched_debug.cfs_rq:/.util_est_enqueued.stddev 15294 ± 30% +234.9% 51219 ± 76% sched_debug.cpu.avg_idle.min 299443 ± 3% -7.3% 277566 ± 5% sched_debug.cpu.avg_idle.stddev 1182 ± 19% -26.3% 872.02 ± 13% sched_debug.cpu.nr_load_updates.stddev 1.22 ± 8% +21.7% 1.48 ± 6% sched_debug.cpu.nr_running.avg 2.75 ± 10% +26.2% 3.47 ± 6% sched_debug.cpu.nr_running.max 0.58 ± 7% +24.2% 0.73 ± 6% sched_debug.cpu.nr_running.stddev 77148 -20.0% 61702 ± 7% sched_debug.cpu.nr_switches.avg 70024 -24.8% 52647 ± 8% sched_debug.cpu.nr_switches.min 6662 ± 6% +61.9% 10789 ± 24% sched_debug.cpu.nr_switches.stddev 80.45 ± 18% -19.1% 65.05 ± 6% sched_debug.cpu.nr_uninterruptible.stddev 76819 -19.3% 62008 ± 8% sched_debug.cpu.sched_count.avg 70616 -23.5% 53996 ± 8% sched_debug.cpu.sched_count.min 5494 ± 9% +85.3% 10179 ± 26% sched_debug.cpu.sched_count.stddev 16936 -52.9% 7975 ± 9% sched_debug.cpu.sched_goidle.avg 19281 -49.9% 9666 ± 7% sched_debug.cpu.sched_goidle.max 15417 -54.8% 6962 ± 10% sched_debug.cpu.sched_goidle.min 875.00 ± 6% -35.0% 569.09 ± 13% sched_debug.cpu.sched_goidle.stddev 40332 -23.5% 30851 ± 7% sched_debug.cpu.ttwu_count.avg 35074 -26.3% 25833 ± 6% sched_debug.cpu.ttwu_count.min 3239 ± 8% +67.4% 5422 ± 28% sched_debug.cpu.ttwu_count.stddev 5232 +27.4% 6665 ± 13% sched_debug.cpu.ttwu_local.avg 15877 ± 12% +77.5% 28184 ± 27% sched_debug.cpu.ttwu_local.max 2530 ± 10% +95.9% 4956 ± 27% sched_debug.cpu.ttwu_local.stddev 2.52 ± 7% -0.6 1.95 ± 3% perf-profile.calltrace.cycles-pp.btrfs_dirty_pages.__btrfs_buffered_write.btrfs_file_write_iter.__vfs_write.vfs_write 1.48 ± 12% -0.5 1.01 ± 4% perf-profile.calltrace.cycles-pp.btrfs_get_extent.btrfs_dirty_pages.__btrfs_buffered_write.btrfs_file_write_iter.__vfs_write 1.18 ± 16% -0.4 0.76 ± 7% perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_lookup_file_extent.btrfs_get_extent.btrfs_dirty_pages.__btrfs_buffered_write 1.18 ± 16% -0.4 0.76 ± 7% perf-profile.calltrace.cycles-pp.btrfs_lookup_file_extent.btrfs_get_extent.btrfs_dirty_pages.__btrfs_buffered_write.btrfs_file_write_iter 0.90 ± 17% -0.3 0.56 ± 4% perf-profile.calltrace.cycles-pp.__dentry_kill.dentry_kill.dput.__fput.task_work_run 0.90 ± 17% -0.3 0.56 ± 4% perf-profile.calltrace.cycles-pp.evict.__dentry_kill.dentry_kill.dput.__fput 0.90 ± 17% -0.3 0.56 ± 4% perf-profile.calltrace.cycles-pp.dentry_kill.dput.__fput.task_work_run.exit_to_usermode_loop 0.90 ± 18% -0.3 0.56 ± 4% perf-profile.calltrace.cycles-pp.btrfs_evict_inode.evict.__dentry_kill.dentry_kill.dput 0.90 ± 17% -0.3 0.57 ± 5% perf-profile.calltrace.cycles-pp.exit_to_usermode_loop.do_syscall_64.entry_SYSCALL_64_after_hwframe 0.90 ± 17% -0.3 0.57 ± 5% perf-profile.calltrace.cycles-pp.task_work_run.exit_to_usermode_loop.do_syscall_64.entry_SYSCALL_64_after_hwframe 0.90 ± 17% -0.3 0.57 ± 5% perf-profile.calltrace.cycles-pp.__fput.task_work_run.exit_to_usermode_loop.do_syscall_64.entry_SYSCALL_64_after_hwframe 0.90 ± 17% -0.3 0.57 ± 5% perf-profile.calltrace.cycles-pp.dput.__fput.task_work_run.exit_to_usermode_loop.do_syscall_64 1.69 -0.1 1.54 ± 2% perf-profile.calltrace.cycles-pp.lock_and_cleanup_extent_if_need.__btrfs_buffered_write.btrfs_file_write_iter.__vfs_write.vfs_write 0.87 ± 4% -0.1 0.76 ± 2% perf-profile.calltrace.cycles-pp.__clear_extent_bit.clear_extent_bit.lock_and_cleanup_extent_if_need.__btrfs_buffered_write.btrfs_file_write_iter 0.87 ± 4% -0.1 0.76 ± 2% perf-profile.calltrace.cycles-pp.clear_extent_bit.lock_and_cleanup_extent_if_need.__btrfs_buffered_write.btrfs_file_write_iter.__vfs_write 0.71 ± 6% -0.1 0.61 ± 2% perf-profile.calltrace.cycles-pp.clear_state_bit.__clear_extent_bit.clear_extent_bit.lock_and_cleanup_extent_if_need.__btrfs_buffered_write 0.69 ± 6% -0.1 0.60 ± 2% perf-profile.calltrace.cycles-pp.btrfs_clear_bit_hook.clear_state_bit.__clear_extent_bit.clear_extent_bit.lock_and_cleanup_extent_if_need 96.77 +0.6 97.33 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe 0.00 +0.6 0.56 ± 3% perf-profile.calltrace.cycles-pp.can_overcommit.reserve_metadata_bytes.btrfs_delalloc_reserve_metadata.__btrfs_buffered_write.btrfs_file_write_iter 96.72 +0.6 97.29 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe 43.13 +0.8 43.91 perf-profile.calltrace.cycles-pp.btrfs_inode_rsv_release.__btrfs_buffered_write.btrfs_file_write_iter.__vfs_write.vfs_write 42.37 +0.8 43.16 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.block_rsv_release_bytes.btrfs_inode_rsv_release.__btrfs_buffered_write 43.11 +0.8 43.89 perf-profile.calltrace.cycles-pp.block_rsv_release_bytes.btrfs_inode_rsv_release.__btrfs_buffered_write.btrfs_file_write_iter.__vfs_write 42.96 +0.8 43.77 perf-profile.calltrace.cycles-pp._raw_spin_lock.block_rsv_release_bytes.btrfs_inode_rsv_release.__btrfs_buffered_write.btrfs_file_write_iter 95.28 +0.9 96.23 perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe 95.22 +1.0 96.18 perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe 94.88 +1.0 95.85 perf-profile.calltrace.cycles-pp.__vfs_write.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe 94.83 +1.0 95.80 perf-profile.calltrace.cycles-pp.btrfs_file_write_iter.__vfs_write.vfs_write.ksys_write.do_syscall_64 94.51 +1.0 95.50 perf-profile.calltrace.cycles-pp.__btrfs_buffered_write.btrfs_file_write_iter.__vfs_write.vfs_write.ksys_write 42.44 +1.1 43.52 perf-profile.calltrace.cycles-pp._raw_spin_lock.reserve_metadata_bytes.btrfs_delalloc_reserve_metadata.__btrfs_buffered_write.btrfs_file_write_iter 42.09 +1.1 43.18 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.reserve_metadata_bytes.btrfs_delalloc_reserve_metadata.__btrfs_buffered_write 44.07 +1.2 45.29 perf-profile.calltrace.cycles-pp.btrfs_delalloc_reserve_metadata.__btrfs_buffered_write.btrfs_file_write_iter.__vfs_write.vfs_write 43.42 +1.3 44.69 perf-profile.calltrace.cycles-pp.reserve_metadata_bytes.btrfs_delalloc_reserve_metadata.__btrfs_buffered_write.btrfs_file_write_iter.__vfs_write 2.06 ± 18% -0.9 1.21 ± 6% perf-profile.children.cycles-pp.btrfs_search_slot 2.54 ± 7% -0.6 1.96 ± 3% perf-profile.children.cycles-pp.btrfs_dirty_pages 1.05 ± 24% -0.5 0.52 ± 9% perf-profile.children.cycles-pp._raw_spin_lock_irqsave 1.50 ± 12% -0.5 1.03 ± 4% perf-profile.children.cycles-pp.btrfs_get_extent 1.22 ± 15% -0.4 0.79 ± 8% perf-profile.children.cycles-pp.btrfs_lookup_file_extent 0.81 ± 5% -0.4 0.41 ± 6% perf-profile.children.cycles-pp.btrfs_calc_reclaim_metadata_size 0.74 ± 24% -0.4 0.35 ± 9% perf-profile.children.cycles-pp.btrfs_lock_root_node 0.74 ± 24% -0.4 0.35 ± 9% perf-profile.children.cycles-pp.btrfs_tree_lock 0.90 ± 17% -0.3 0.56 ± 4% perf-profile.children.cycles-pp.__dentry_kill 0.90 ± 17% -0.3 0.56 ± 4% perf-profile.children.cycles-pp.evict 0.90 ± 17% -0.3 0.56 ± 4% perf-profile.children.cycles-pp.dentry_kill 0.90 ± 18% -0.3 0.56 ± 4% perf-profile.children.cycles-pp.btrfs_evict_inode 0.91 ± 18% -0.3 0.57 ± 4% perf-profile.children.cycles-pp.exit_to_usermode_loop 0.52 ± 20% -0.3 0.18 ± 14% perf-profile.children.cycles-pp.do_idle 0.90 ± 17% -0.3 0.57 ± 5% perf-profile.children.cycles-pp.task_work_run 0.90 ± 17% -0.3 0.57 ± 5% perf-profile.children.cycles-pp.__fput 0.90 ± 18% -0.3 0.57 ± 4% perf-profile.children.cycles-pp.dput 0.51 ± 20% -0.3 0.18 ± 14% perf-profile.children.cycles-pp.secondary_startup_64 0.51 ± 20% -0.3 0.18 ± 14% perf-profile.children.cycles-pp.cpu_startup_entry 0.50 ± 21% -0.3 0.17 ± 16% perf-profile.children.cycles-pp.start_secondary 0.47 ± 20% -0.3 0.16 ± 13% perf-profile.children.cycles-pp.cpuidle_enter_state 0.47 ± 19% -0.3 0.16 ± 13% perf-profile.children.cycles-pp.intel_idle 0.61 ± 20% -0.3 0.36 ± 11% perf-profile.children.cycles-pp.btrfs_tree_read_lock 0.47 ± 26% -0.3 0.21 ± 10% perf-profile.children.cycles-pp.prepare_to_wait_event 0.64 ± 18% -0.2 0.39 ± 9% perf-profile.children.cycles-pp.btrfs_read_lock_root_node 0.40 ± 22% -0.2 0.21 ± 5% perf-profile.children.cycles-pp.btrfs_clear_path_blocking 0.38 ± 23% -0.2 0.19 ± 13% perf-profile.children.cycles-pp.finish_wait 1.51 ± 3% -0.2 1.35 ± 2% perf-profile.children.cycles-pp.__clear_extent_bit 1.71 -0.1 1.56 ± 2% perf-profile.children.cycles-pp.lock_and_cleanup_extent_if_need 0.29 ± 25% -0.1 0.15 ± 10% perf-profile.children.cycles-pp.btrfs_orphan_del 0.27 ± 27% -0.1 0.12 ± 8% perf-profile.children.cycles-pp.btrfs_del_orphan_item 0.33 ± 18% -0.1 0.19 ± 9% perf-profile.children.cycles-pp.queued_read_lock_slowpath 0.33 ± 19% -0.1 0.20 ± 4% perf-profile.children.cycles-pp.__wake_up_common_lock 0.45 ± 15% -0.1 0.34 ± 2% perf-profile.children.cycles-pp.btrfs_alloc_data_chunk_ondemand 0.47 ± 16% -0.1 0.36 ± 4% perf-profile.children.cycles-pp.btrfs_check_data_free_space 0.91 ± 4% -0.1 0.81 ± 3% perf-profile.children.cycles-pp.clear_extent_bit 1.07 ± 5% -0.1 0.97 perf-profile.children.cycles-pp.__set_extent_bit 0.77 ± 6% -0.1 0.69 ± 3% perf-profile.children.cycles-pp.btrfs_clear_bit_hook 0.17 ± 20% -0.1 0.08 ± 10% perf-profile.children.cycles-pp.queued_write_lock_slowpath 0.16 ± 22% -0.1 0.08 ± 24% perf-profile.children.cycles-pp.btrfs_lookup_inode 0.21 ± 17% -0.1 0.14 ± 19% perf-profile.children.cycles-pp.__btrfs_update_delayed_inode 0.26 ± 12% -0.1 0.18 ± 13% perf-profile.children.cycles-pp.btrfs_async_run_delayed_root 0.52 ± 5% -0.1 0.45 perf-profile.children.cycles-pp.set_extent_bit 0.45 ± 5% -0.1 0.40 ± 3% perf-profile.children.cycles-pp.alloc_extent_state 0.11 ± 17% -0.1 0.06 ± 11% perf-profile.children.cycles-pp.btrfs_clear_lock_blocking_rw 0.28 ± 9% -0.0 0.23 ± 3% perf-profile.children.cycles-pp.btrfs_drop_pages 0.07 -0.0 0.03 ±100% perf-profile.children.cycles-pp.btrfs_set_lock_blocking_rw 0.39 ± 3% -0.0 0.34 ± 3% perf-profile.children.cycles-pp.get_alloc_profile 0.33 ± 7% -0.0 0.29 perf-profile.children.cycles-pp.btrfs_set_extent_delalloc 0.38 ± 2% -0.0 0.35 ± 4% perf-profile.children.cycles-pp.__set_page_dirty_nobuffers 0.49 ± 3% -0.0 0.46 ± 3% perf-profile.children.cycles-pp.pagecache_get_page 0.18 ± 4% -0.0 0.15 ± 2% perf-profile.children.cycles-pp.truncate_inode_pages_range 0.08 ± 5% -0.0 0.05 ± 9% perf-profile.children.cycles-pp.btrfs_set_path_blocking 0.08 ± 6% -0.0 0.06 ± 6% perf-profile.children.cycles-pp.truncate_cleanup_page 0.80 ± 4% +0.2 0.95 ± 2% perf-profile.children.cycles-pp.can_overcommit 96.84 +0.5 97.37 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe 96.80 +0.5 97.35 perf-profile.children.cycles-pp.do_syscall_64 43.34 +0.8 44.17 perf-profile.children.cycles-pp.btrfs_inode_rsv_release 43.49 +0.8 44.32 perf-profile.children.cycles-pp.block_rsv_release_bytes 95.32 +0.9 96.26 perf-profile.children.cycles-pp.ksys_write 95.26 +0.9 96.20 perf-profile.children.cycles-pp.vfs_write 94.91 +1.0 95.88 perf-profile.children.cycles-pp.__vfs_write 94.84 +1.0 95.81 perf-profile.children.cycles-pp.btrfs_file_write_iter 94.55 +1.0 95.55 perf-profile.children.cycles-pp.__btrfs_buffered_write 86.68 +1.0 87.70 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath 44.08 +1.2 45.31 perf-profile.children.cycles-pp.btrfs_delalloc_reserve_metadata 43.49 +1.3 44.77 perf-profile.children.cycles-pp.reserve_metadata_bytes 87.59 +1.8 89.38 perf-profile.children.cycles-pp._raw_spin_lock 0.47 ± 19% -0.3 0.16 ± 13% perf-profile.self.cycles-pp.intel_idle 0.33 ± 6% -0.1 0.18 ± 6% perf-profile.self.cycles-pp.get_alloc_profile 0.27 ± 8% -0.0 0.22 ± 4% perf-profile.self.cycles-pp.btrfs_drop_pages 0.07 -0.0 0.03 ±100% perf-profile.self.cycles-pp.btrfs_set_lock_blocking_rw 0.14 ± 5% -0.0 0.12 ± 6% perf-profile.self.cycles-pp.clear_page_dirty_for_io 0.09 ± 5% -0.0 0.07 ± 10% perf-profile.self.cycles-pp._raw_spin_lock_irqsave 0.17 ± 4% +0.1 0.23 ± 3% perf-profile.self.cycles-pp.reserve_metadata_bytes 0.31 ± 7% +0.1 0.45 ± 2% perf-profile.self.cycles-pp.can_overcommit 86.35 +1.0 87.39 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath aim7.jobs-per-min 29000 +-+-----------------------------------------------------------------+ 28500 +-+ +.. + +..+.. +.. | |..+ +.+..+.. : .. + .+.+..+..+.+.. .+..+.. + + + | 28000 +-+ + .. : + +. + + + | 27500 +-+ + + | | | 27000 +-+ | 26500 +-+ | 26000 +-+ | | | 25500 +-+ O O O O O | 25000 +-+ O O O O O O O O O | O O O O O O O O | 24500 O-+O O O O | 24000 +-+-----------------------------------------------------------------+ [*] bisect-good sample [O] bisect-bad sample Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. Thanks, Xiaolong

2 years, 3 months

2
2
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[lkp-robot] [sched/fair] d519329f72: unixbench.score -9.9% regression

by kernel test robot

Greeting, FYI, we noticed a -9.9% regression of unixbench.score due to commit: commit: d519329f72a6f36bc4f2b85452640cfe583b4f81 ("sched/fair: Update util_est only on util_avg updates") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master in testcase: unixbench on test machine: 8 threads Intel(R) Core(TM) i7 CPU 870 @ 2.93GHz with 6G memory with following parameters: runtime: 300s nr_task: 100% test: execl test-description: UnixBench is the original BYTE UNIX benchmark suite aims to test performance of Unix-like system. test-url: https://github.com/kdlucas/byte-unixbench Details are as below: --------------------------------------------------------------------------------------------------> To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml ========================================================================================= compiler/kconfig/nr_task/rootfs/runtime/tbox_group/test/testcase: gcc-7/x86_64-rhel-7.2/100%/debian-x86_64-2016-08-31.cgz/300s/nhm-white/execl/unixbench commit: a07630b8b2 ("sched/cpufreq/schedutil: Use util_est for OPP selection") d519329f72 ("sched/fair: Update util_est only on util_avg updates") a07630b8b2c16f82 d519329f72a6f36bc4f2b85452 ---------------- -------------------------- %stddev %change %stddev \ | \ 4626 -9.9% 4167 unixbench.score 3495362 ± 4% +70.4% 5957769 ± 2% unixbench.time.involuntary_context_switches 2.866e+08 -11.6% 2.534e+08 unixbench.time.minor_page_faults 666.75 -9.7% 602.25 unixbench.time.percent_of_cpu_this_job_got 1830 -9.7% 1653 unixbench.time.system_time 395.13 -5.2% 374.58 unixbench.time.user_time 8611715 -58.9% 3537314 ± 3% unixbench.time.voluntary_context_switches 6639375 -9.1% 6033775 unixbench.workload 26025 +3849.3% 1027825 interrupts.CAL:Function_call_interrupts 4856 ± 14% -27.4% 3523 ± 11% slabinfo.filp.active_objs 3534356 -8.8% 3223918 softirqs.RCU 77929 -11.2% 69172 vmstat.system.cs 19489 ± 2% +7.5% 20956 vmstat.system.in 9.05 ± 9% +11.0% 10.05 ± 8% boot-time.dhcp 131.63 ± 4% +8.6% 142.89 ± 7% boot-time.idle 9.07 ± 9% +11.0% 10.07 ± 8% boot-time.kernel_boot 76288 ± 3% -12.8% 66560 ± 3% meminfo.DirectMap4k 16606 -13.1% 14433 meminfo.Inactive 16515 -13.2% 14341 meminfo.Inactive(anon) 11.87 ± 5% +7.8 19.63 ± 4% mpstat.cpu.idle% 0.07 ± 35% -0.0 0.04 ± 17% mpstat.cpu.soft% 68.91 -6.1 62.82 mpstat.cpu.sys% 29291570 +325.4% 1.246e+08 cpuidle.C1.time 8629105 -36.1% 5513780 cpuidle.C1.usage 668733 ± 12% +11215.3% 75668902 ± 2% cpuidle.C1E.time 9763 ± 12% +16572.7% 1627882 ± 2% cpuidle.C1E.usage 1.834e+08 ± 9% +23.1% 2.258e+08 ± 11% cpuidle.C3.time 222674 ± 8% +133.4% 519690 ± 6% cpuidle.C3.usage 4129 -13.3% 3581 proc-vmstat.nr_inactive_anon 4129 -13.3% 3581 proc-vmstat.nr_zone_inactive_anon 2.333e+08 -12.2% 2.049e+08 proc-vmstat.numa_hit 2.333e+08 -12.2% 2.049e+08 proc-vmstat.numa_local 6625 -10.9% 5905 proc-vmstat.pgactivate 2.392e+08 -12.1% 2.102e+08 proc-vmstat.pgalloc_normal 2.936e+08 -12.6% 2.566e+08 proc-vmstat.pgfault 2.392e+08 -12.1% 2.102e+08 proc-vmstat.pgfree 2850 -15.3% 2413 turbostat.Avg_MHz 8629013 -36.1% 5513569 turbostat.C1 1.09 +3.5 4.61 turbostat.C1% 9751 ± 12% +16593.0% 1627864 ± 2% turbostat.C1E 0.03 ± 19% +2.8 2.80 turbostat.C1E% 222574 ± 8% +133.4% 519558 ± 6% turbostat.C3 6.84 ± 8% +1.5 8.34 ± 10% turbostat.C3% 2.82 ± 7% +250.3% 9.87 ± 2% turbostat.CPU%c1 6552773 ± 3% +23.8% 8111699 ± 2% turbostat.IRQ 2.02 ± 11% +28.3% 2.58 ± 9% turbostat.Pkg%pc3 7.635e+11 -12.5% 6.682e+11 perf-stat.branch-instructions 3.881e+10 -12.9% 3.381e+10 perf-stat.branch-misses 2.09 -0.3 1.77 ± 4% perf-stat.cache-miss-rate% 1.551e+09 -15.1% 1.316e+09 ± 4% perf-stat.cache-misses 26177920 -10.5% 23428188 perf-stat.context-switches 1.99 -2.8% 1.93 perf-stat.cpi 7.553e+12 -14.7% 6.446e+12 perf-stat.cpu-cycles 522523 ± 2% +628.3% 3805664 perf-stat.cpu-migrations 2.425e+10 ± 4% -14.3% 2.078e+10 perf-stat.dTLB-load-misses 1.487e+12 -11.3% 1.319e+12 perf-stat.dTLB-loads 1.156e+10 ± 3% -7.7% 1.066e+10 perf-stat.dTLB-store-misses 6.657e+11 -11.1% 5.915e+11 perf-stat.dTLB-stores 0.15 +0.0 0.15 perf-stat.iTLB-load-miss-rate% 5.807e+09 -11.0% 5.166e+09 perf-stat.iTLB-load-misses 3.799e+12 -12.1% 3.34e+12 perf-stat.iTLB-loads 3.803e+12 -12.2% 3.338e+12 perf-stat.instructions 654.99 -1.4% 646.07 perf-stat.instructions-per-iTLB-miss 0.50 +2.8% 0.52 perf-stat.ipc 2.754e+08 -11.6% 2.435e+08 perf-stat.minor-faults 1.198e+08 ± 7% +73.1% 2.074e+08 ± 4% perf-stat.node-stores 2.754e+08 -11.6% 2.435e+08 perf-stat.page-faults 572928 -3.4% 553258 perf-stat.path-length unixbench.score 4800 +-+------------------------------------------------------------------+ |+ + + | 4700 +-+ + + :+ +. :+ + + | | + + + +. : + + + + + + + .+++++ .+ +| 4600 +-+ +++ :+++ + ++: : :+ +++ ++.++++ + ++++ ++ | | + + + ++ ++ + | 4500 +-+ | | | 4400 +-+ | | | 4300 +-+ | O | 4200 +-O O O OOOO OO OOO OOOO OOOO O O | |O OO OOOOO O O OO O O O O O OO | 4100 +-+------------------------------------------------------------------+ unixbench.workload 9e+06 +-+---------------------------------------------------------------+ | : | 8.5e+06 +-+ : | | : | 8e+06 +-+ : | | :: | 7.5e+06 +-+ : : + | | +: : : + | 7e+06 +-+ + + :: : :: + + : + + + + + | |:+ + + : :: : : :: : :+ : : ::+ :+ .+ :+ ++ ++ + ++ ::++| 6.5e+06 +-O+ +++ ++++ +++ + ++ +.+ + ++ + + + + + + + +.+++ + | O O O O O O O | 6e+06 +O+OOO O OOOOOOOO OOOO OO OOOOOOOOO O O O OO | | O | 5.5e+06 +-+---------------------------------------------------------------+ [*] bisect-good sample [O] bisect-bad sample Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. Thanks, Xiaolong

2 years, 5 months

4
6
0 / 0

[lkp-robot] [confidence: ] 6ce3dd6eec [ 10.247585] WARNING: CPU: 0 PID: 210 at block/blk-mq.c:647 blk_mq_start_request

by kernel test robot

Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master commit 6ce3dd6eec114930cf2035a8bcb1e80477ed79a8 Author: Ming Lei <ming.lei(a)redhat.com> AuthorDate: Tue Jul 10 09:03:31 2018 +0800 Commit: Jens Axboe <axboe(a)kernel.dk> CommitDate: Tue Jul 17 16:04:00 2018 -0600 blk-mq: issue directly if hw queue isn't busy in case of 'none' In case of 'none' io scheduler, when hw queue isn't busy, it isn't necessary to enqueue request to sw queue and dequeue it from sw queue because request may be submitted to hw queue asap without extra cost, meantime there shouldn't be much request in sw queue, and we don't need to worry about effect on IO merge. There are still some single hw queue SCSI HBAs(HPSA, megaraid_sas, ...) which may connect high performance devices, so 'none' is often required for obtaining good performance. This patch improves IOPS and decreases CPU unilization on megaraid_sas, per Kashyap's test. Cc: Kashyap Desai <kashyap.desai(a)broadcom.com> Cc: Laurence Oberman <loberman(a)redhat.com> Cc: Omar Sandoval <osandov(a)fb.com> Cc: Christoph Hellwig <hch(a)lst.de> Cc: Bart Van Assche <bart.vanassche(a)wdc.com> Cc: Hannes Reinecke <hare(a)suse.de> Reported-by: Kashyap Desai <kashyap.desai(a)broadcom.com> Tested-by: Kashyap Desai <kashyap.desai(a)broadcom.com> Signed-off-by: Ming Lei <ming.lei(a)redhat.com> Signed-off-by: Jens Axboe <axboe(a)kernel.dk> 71e9690b59 blk-iolatency: truncate our current time 6ce3dd6eec blk-mq: issue directly if hw queue isn't busy in case of 'none' 89cf553533 Add linux-next specific files for 20180720 +-------------------------------------------------+------------+------------+---------------+ | | 71e9690b59 | 6ce3dd6eec | next-20180720 | +-------------------------------------------------+------------+------------+---------------+ | boot_successes | 32 | 4 | 18 | | boot_failures | 13 | 12 | 12 | | BUG:workqueue_lockup-pool | 13 | 2 | 3 | | WARNING:at_block/blk-mq.c:#blk_mq_start_request | 0 | 12 | 11 | | RIP:blk_mq_start_request | 0 | 12 | 11 | +-------------------------------------------------+------------+------------+---------------+ [ 10.225908] UDF-fs: error (device nbd11): udf_read_tagged: read failed, block=512, location=512 [ 10.230004] UDF-fs: error (device nbd6): udf_read_tagged: read failed, block=512, location=512 [ 10.234011] UDF-fs: error (device nbd15): udf_read_tagged: read failed, block=512, location=512 [ 10.238978] UDF-fs: error (device nbd11): udf_read_tagged: read failed, block=256, location=256 [ 10.243423] UDF-fs: error (device nbd6): udf_read_tagged: read failed, block=256, location=256 [ 10.247585] WARNING: CPU: 0 PID: 210 at block/blk-mq.c:647 blk_mq_start_request+0x57/0x84 [ 10.255769] CPU: 0 PID: 210 Comm: kworker/0:1H Not tainted 4.18.0-rc4-00068-g6ce3dd6 #1 [ 10.258705] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 10.261751] Workqueue: kblockd blk_mq_run_work_fn [ 10.263469] RIP: 0010:blk_mq_start_request+0x57/0x84 [ 10.265231] Code: 73 1e e8 32 9c b9 ff 81 4b 18 00 00 02 00 48 89 83 b0 00 00 00 48 89 de 48 89 ef e8 4a e5 00 00 8b 83 d4 00 00 00 85 c0 74 02 <0f> 0b 48 89 df e8 65 dd ff ff c7 83 d4 00 00 00 01 00 00 00 83 bd [ 10.271321] RSP: 0018:ffffc900002a7cb0 EFLAGS: 00010202 [ 10.273134] RAX: 0000000000000001 RBX: ffff88001c61ccc0 RCX: 00000000000000ff [ 10.275339] RDX: 0000000000000000 RSI: ffff88001c5ae300 RDI: ffff88001c61ccc0 [ 10.277534] RBP: ffff88001c5f7008 R08: 0000000437ddd47e R09: 0000000000000000 [ 10.279729] R10: 0000000000000000 R11: ffff88001c61cd00 R12: 000000000000000a [ 10.287969] R13: 0000000000000000 R14: ffff88001c5f7000 R15: ffff88001c308a00 [ 10.290141] FS: 0000000000000000(0000) GS:ffffffff82e98000(0000) knlGS:0000000000000000 [ 10.293062] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.294955] CR2: 00007f661eaba000 CR3: 0000000002e75002 CR4: 00000000000606b0 [ 10.297108] Call Trace: [ 10.298313] nbd_queue_rq+0x105/0x3c5 [ 10.310816] ? kvm_sched_clock_read+0x5/0xd [ 10.312427] ? __lock_acquire+0x217/0x7ae [ 10.314125] blk_mq_dispatch_rq_list+0x2db/0x4ec [ 10.315808] ? blk_mq_flush_busy_ctxs+0x5d/0x145 [ 10.317460] blk_mq_sched_dispatch_requests+0x127/0x165 [ 10.319212] __blk_mq_run_hw_queue+0x9d/0xc4 [ 10.320769] process_one_work+0x205/0x36f [ 10.322277] ? process_one_work+0x1a4/0x36f [ 10.327153] worker_thread+0x1ec/0x2bb [ 10.329387] ? process_scheduled_works+0x27/0x27 [ 10.331067] kthread+0x117/0x11f [ 10.332477] ? kthread_flush_work_fn+0x9/0x9 [ 10.348547] ret_from_fork+0x35/0x40 [ 10.349980] ---[ end trace 29f1a54dd1591b2f ]--- [ 10.352707] NILFS (nbd9): unable to read superblock # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 01c75271c97333b09c56dc9faf56efab9bddd395 7daf201d7fe8334e2d2364d4e8ed3394ec9af819 -- git bisect bad 09ab3047b1a130d322a0d250fef359b1b910b2b5 # 01:45 B 0 1 15 0 Merge 'pcmoore/next' into devel-catchup-201807190533 git bisect bad d2f660d44ec337305d2015a59542b666ea098a80 # 02:09 B 2 3 2 2 Merge 'linux-review/Katsuhiro-Suzuki/media-dvb-frontends-add-Socionext-SC1501A-ISDB-S-T-demodulator-driver/20180719-045753' into devel-catchup-201807190533 git bisect good bb9f3d6e0cd4247dc8261f6045f27eef059c258c # 02:35 G 11 0 11 11 Merge 'linux-review/Ernesto-A-Fern-ndez/hfsplus-fix-decomposition-of-Hangul-characters/20180719-051928' into devel-catchup-201807190533 git bisect good 08d5773f0d3f83b5f402025cb74f1ad4f9be2c3a # 03:04 G 11 0 4 4 Merge 'vfio/for-linus' into devel-catchup-201807190533 git bisect good 1452167e29e13d331b052fb5e86af82aeb7fa30e # 03:39 G 11 0 4 4 Merge 'linux-review/Srinath-Mannam/mmc-host-iproc-Add-ACPI-support-to-IPROC-SDHCI/20180719-043256' into devel-catchup-201807190533 git bisect bad 4fa583c08a968c296b131f5bf4221b1f8a78b18c # 03:56 B 0 10 25 0 Merge 'linux-review/RAGHU-Halharvi/pktcdvd-checkpatch-remove-static-initialise-null/20180719-040038' into devel-catchup-201807190533 git bisect good b351f0c76c3eb94c9ccfb68d0b23899a35e47f27 # 04:17 G 12 0 6 6 Documentation: add a doc for blk-iolatency git bisect good 884b031b288bae15397dd07b084a41ffb44f99e4 # 04:31 G 11 0 4 4 lightnvm: pblk: mark expected switch fall-through git bisect bad bdca3c87fb7ad1cc61d231d37eb0d8f90d001e0c # 04:59 B 0 2 17 0 block: Track DISCARD statistics and output them in stat and diskstat git bisect bad 6ce3dd6eec114930cf2035a8bcb1e80477ed79a8 # 05:12 B 0 6 21 0 blk-mq: issue directly if hw queue isn't busy in case of 'none' git bisect good f6352103d2e0ad2d2066725eb19bfdfb8763239b # 05:28 G 11 0 4 4 lightnvm: pblk: assume that chunks are closed on 1.2 devices git bisect good 71e9690b59e7349156025a514c29c29ef55b0175 # 05:48 G 11 0 5 5 blk-iolatency: truncate our current time # first bad commit: [6ce3dd6eec114930cf2035a8bcb1e80477ed79a8] blk-mq: issue directly if hw queue isn't busy in case of 'none' git bisect good 71e9690b59e7349156025a514c29c29ef55b0175 # 05:54 G 36 0 8 13 blk-iolatency: truncate our current time # extra tests with debug options git bisect bad 6ce3dd6eec114930cf2035a8bcb1e80477ed79a8 # 06:32 B 0 1 16 0 blk-mq: issue directly if hw queue isn't busy in case of 'none' # extra tests on HEAD of linux-devel/devel-catchup-201807190533 git bisect bad 01c75271c97333b09c56dc9faf56efab9bddd395 # 06:33 B 0 319 383 46 0day head guard for 'devel-catchup-201807190533' # extra tests on tree/branch linux-next/master git bisect bad 89cf553533084a35b44f533d59198497d3319d69 # 07:02 B 1 1 1 1 Add linux-next specific files for 20180720 # extra tests with first bad commit reverted git bisect good e1aef67c37bb7d5591d822552d4aff6c4b5ab0de # 07:29 G 12 0 2 2 Revert "blk-mq: issue directly if hw queue isn't busy in case of 'none'" --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/lkp Intel Corporation

2 years, 7 months

3
2
0 / 0

[lkp-robot] [nfsd4] 517dc52baa: fsmark.files_per_sec 32.4% improvement

by kernel test robot

Greeting, FYI, we noticed a 32.4% improvement of fsmark.files_per_sec due to commit: commit: 517dc52baa2a508c82f68bbc7219b48169e6b29f ("nfsd4: shortern default lease period") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master in testcase: fsmark on test machine: 48 threads Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz with 64G memory with following parameters: iterations: 1x nr_threads: 1t disk: 1BRD_48G fs: f2fs fs2: nfsv4 filesize: 4M test_size: 40G sync_method: fsyncBeforeClose cpufreq_governor: performance test-description: The fsmark is a file system benchmark to test synchronous write workloads, for example, mail servers workload. test-url: https://sourceforge.net/projects/fsmark/ Details are as below: --------------------------------------------------------------------------------------------------> To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml ========================================================================================= compiler/cpufreq_governor/disk/filesize/fs2/fs/iterations/kconfig/nr_threads/rootfs/sync_method/tbox_group/test_size/testcase: gcc-7/performance/1BRD_48G/4M/nfsv4/f2fs/1x/x86_64-rhel-7.2/1t/debian-x86_64-2016-08-31.cgz/fsyncBeforeClose/ivb44/40G/fsmark commit: c2993a1d7d ("nfsd4: extend reclaim period for reclaiming clients") 517dc52baa ("nfsd4: shortern default lease period") c2993a1d7d6687fd 517dc52baa2a508c82f68bbc72 ---------------- -------------------------- %stddev %change %stddev \ | \ 53.60 +32.4% 70.95 fsmark.files_per_sec 191.89 -24.4% 145.16 fsmark.time.elapsed_time 191.89 -24.4% 145.16 fsmark.time.elapsed_time.max 17.75 ± 2% +31.0% 23.25 ± 3% fsmark.time.percent_of_cpu_this_job_got 1.43 ± 2% +0.4 1.85 ± 3% mpstat.cpu.sys% 0.03 ± 3% +0.0 0.04 ± 3% mpstat.cpu.usr% 1333968 ± 3% -24.4% 1008280 ± 2% softirqs.SCHED 4580860 ± 3% -25.0% 3433796 ± 4% softirqs.TIMER 49621514 ± 50% -33.8% 32838257 ± 4% cpuidle.C3.time 8.87e+09 ± 3% -25.7% 6.588e+09 cpuidle.C6.time 9796946 ± 3% -24.8% 7369851 cpuidle.C6.usage 212766 ± 3% +33.3% 283568 vmstat.io.bo 13605317 +27.6% 17354458 vmstat.memory.cache 41139824 ± 2% -15.6% 34707711 vmstat.memory.free 0.00 +1e+102% 1.00 vmstat.procs.r 16158 ± 9% +33.0% 21495 ± 12% vmstat.system.cs 28279 ± 10% +23.0% 34796 ± 4% meminfo.Active(file) 13485862 +27.9% 17253726 meminfo.Cached 20655 ± 10% +24.7% 25748 meminfo.Dirty 12246598 +30.7% 16008540 meminfo.Inactive 12237146 +30.7% 15999087 meminfo.Inactive(file) 41246576 ± 2% -15.3% 34917557 meminfo.MemFree 123641 ± 2% +15.8% 143144 meminfo.SReclaimable 233101 +10.4% 257273 meminfo.Slab 13275 ± 28% +54.6% 20527 ± 15% numa-meminfo.node0.Active(file) 9394 ± 33% +76.6% 16592 ± 14% numa-meminfo.node0.Dirty 20060196 ± 8% -18.6% 16336481 ± 10% numa-meminfo.node0.MemFree 5768180 ± 2% +67.5% 9661137 ± 22% numa-meminfo.node1.FilePages 5162181 ± 3% +74.9% 9029558 ± 23% numa-meminfo.node1.Inactive 5158148 ± 3% +75.0% 9027345 ± 23% numa-meminfo.node1.Inactive(file) 21163215 ± 5% -12.3% 18564891 ± 6% numa-meminfo.node1.MemFree 367.00 ± 27% +82.6% 670.25 ± 40% numa-meminfo.node1.NFS_Unstable 624.00 ± 21% +95.3% 1218 ± 35% numa-meminfo.node1.Writeback 2.236e+09 ± 6% -21.0% 1.767e+09 ± 12% perf-stat.branch-misses 3.553e+09 ± 6% -12.3% 3.115e+09 ± 10% perf-stat.cache-misses 9.503e+09 ± 4% -15.0% 8.074e+09 ± 9% perf-stat.cache-references 8701 ± 13% -38.3% 5367 ± 26% perf-stat.cpu-migrations 1.037e+08 ± 5% -20.6% 82303955 ± 7% perf-stat.dTLB-store-misses 86.00 -1.2 84.80 perf-stat.iTLB-load-miss-rate% 1.33e+08 ± 5% -20.2% 1.062e+08 ± 11% perf-stat.iTLB-load-misses 543566 ± 3% -24.5% 410527 perf-stat.minor-faults 543567 ± 3% -24.5% 410533 perf-stat.page-faults 98.50 +15.0% 113.25 turbostat.Avg_MHz 2081 +10.2% 2292 ± 3% turbostat.Bzy_MHz 0.59 +0.1 0.73 ± 2% turbostat.C1% 0.15 ± 2% +0.1 0.20 ± 6% turbostat.C1E% 9795281 ± 3% -24.8% 7368291 turbostat.C6 58.70 +9.0% 64.01 ± 3% turbostat.CorWatt 9631901 ± 3% -24.9% 7237299 turbostat.IRQ 4.29 ± 3% -26.1% 3.17 ± 5% turbostat.Pkg%pc6 87.05 +6.4% 92.61 ± 2% turbostat.PkgWatt 8.29 +2.9% 8.54 turbostat.RAMWatt 3296 ± 29% +55.4% 5124 ± 16% numa-vmstat.node0.nr_active_file 2342 ± 33% +76.4% 4131 ± 15% numa-vmstat.node0.nr_dirty 5021740 ± 8% -18.7% 4085154 ± 9% numa-vmstat.node0.nr_free_pages 764.00 ± 57% +124.9% 1718 ± 28% numa-vmstat.node0.nr_vmscan_immediate_reclaim 3297 ± 29% +55.4% 5124 ± 16% numa-vmstat.node0.nr_zone_active_file 2472 ± 31% +72.1% 4254 ± 14% numa-vmstat.node0.nr_zone_write_pending 2418556 ± 8% +51.7% 3669187 ± 18% numa-vmstat.node1.nr_dirtied 1442200 ± 2% +67.4% 2413905 ± 22% numa-vmstat.node1.nr_file_pages 5299408 ± 5% -12.3% 4649246 ± 6% numa-vmstat.node1.nr_free_pages 1289719 ± 3% +74.9% 2255484 ± 23% numa-vmstat.node1.nr_inactive_file 85499 ± 21% +39.3% 119063 ± 22% numa-vmstat.node1.nr_indirectly_reclaimable 92.00 ± 23% +82.1% 167.50 ± 33% numa-vmstat.node1.nr_unstable 136.50 ± 25% +92.3% 262.50 ± 25% numa-vmstat.node1.nr_writeback 2415645 ± 8% +51.8% 3666735 ± 18% numa-vmstat.node1.nr_written 1289715 ± 3% +74.9% 2255489 ± 23% numa-vmstat.node1.nr_zone_inactive_file 7109 ± 10% +22.6% 8718 ± 4% proc-vmstat.nr_active_file 5188 ± 10% +24.3% 6450 proc-vmstat.nr_dirty 1326117 -4.8% 1262303 proc-vmstat.nr_dirty_background_threshold 2655481 -4.8% 2527699 proc-vmstat.nr_dirty_threshold 3372021 +27.9% 4311617 proc-vmstat.nr_file_pages 10302256 ± 2% -15.3% 8722920 proc-vmstat.nr_free_pages 3059627 +30.7% 3997741 proc-vmstat.nr_inactive_file 191536 ± 2% +31.6% 252107 proc-vmstat.nr_indirectly_reclaimable 3508 -6.4% 3283 proc-vmstat.nr_shmem 30984 ± 2% +15.6% 35811 proc-vmstat.nr_slab_reclaimable 27320 +4.5% 28553 ± 2% proc-vmstat.nr_slab_unreclaimable 275.25 ± 13% +63.5% 450.00 ± 20% proc-vmstat.nr_writeback 7109 ± 10% +22.6% 8716 ± 4% proc-vmstat.nr_zone_active_file 3059632 +30.7% 3997758 proc-vmstat.nr_zone_inactive_file 5414 ± 9% +25.8% 6812 proc-vmstat.nr_zone_write_pending 561847 ± 3% -24.2% 425887 ± 2% proc-vmstat.pgfault 951.53 ± 4% -15.3% 805.83 ± 7% sched_debug.cfs_rq:/.exec_clock.avg 195.00 ± 3% +37.1% 267.35 ± 7% sched_debug.cfs_rq:/.load_avg.avg 0.78 -11.5% 0.69 ± 2% sched_debug.cfs_rq:/.nr_spread_over.avg 0.75 -11.1% 0.67 sched_debug.cfs_rq:/.nr_spread_over.min 129.41 ± 10% -23.9% 98.49 ± 6% sched_debug.cfs_rq:/.runnable_load_avg.stddev 187.51 ± 4% +23.1% 230.86 sched_debug.cfs_rq:/.util_avg.avg 115822 -26.1% 85630 sched_debug.cpu.clock.avg 115824 -26.1% 85633 sched_debug.cpu.clock.max 115818 -26.1% 85627 sched_debug.cpu.clock.min 115822 -26.1% 85630 sched_debug.cpu.clock_task.avg 115824 -26.1% 85633 sched_debug.cpu.clock_task.max 115818 -26.1% 85627 sched_debug.cpu.clock_task.min 16.83 ± 13% +118.0% 36.67 ± 52% sched_debug.cpu.cpu_load[0].avg 18.88 ± 9% +71.7% 32.43 ± 20% sched_debug.cpu.cpu_load[1].avg 498.88 ± 9% +83.7% 916.50 ± 39% sched_debug.cpu.cpu_load[1].max 82.58 ± 7% +70.8% 141.02 ± 33% sched_debug.cpu.cpu_load[1].stddev 4240 -19.7% 3403 sched_debug.cpu.curr->pid.max 95563 -31.3% 65668 sched_debug.cpu.nr_load_updates.avg 100959 -30.6% 70040 sched_debug.cpu.nr_load_updates.max 93175 -32.1% 63230 sched_debug.cpu.nr_load_updates.min 600.39 ± 4% -16.6% 500.69 ± 2% sched_debug.cpu.ttwu_local.avg 115820 -26.1% 85628 sched_debug.cpu_clk 115820 -26.1% 85628 sched_debug.ktime 0.05 ± 10% +48.4% 0.08 ± 20% sched_debug.rt_rq:/.rt_time.avg 2.39 ± 10% +48.9% 3.56 ± 20% sched_debug.rt_rq:/.rt_time.max 0.34 ± 10% +48.9% 0.51 ± 20% sched_debug.rt_rq:/.rt_time.stddev 116302 -26.0% 86097 sched_debug.sched_clk 1036 ± 9% +27.7% 1322 ± 8% slabinfo.biovec-64.active_objs 1036 ± 9% +27.7% 1322 ± 8% slabinfo.biovec-64.num_objs 712.50 ± 8% +27.5% 908.50 ± 10% slabinfo.ext4_extent_status.active_objs 712.50 ± 8% +27.5% 908.50 ± 10% slabinfo.ext4_extent_status.num_objs 2640 ± 8% +25.5% 3313 ± 6% slabinfo.ext4_io_end.active_objs 2674 ± 8% +25.4% 3354 ± 6% slabinfo.ext4_io_end.num_objs 2709 ± 9% +34.4% 3641 ± 5% slabinfo.f2fs_extent_tree.active_objs 2750 ± 9% +32.8% 3651 ± 5% slabinfo.f2fs_extent_tree.num_objs 2255 ± 5% +31.6% 2969 ± 8% slabinfo.f2fs_inode_cache.active_objs 2286 ± 4% +31.2% 3000 ± 7% slabinfo.f2fs_inode_cache.num_objs 590.00 ± 8% +24.5% 734.75 ± 3% slabinfo.file_lock_cache.active_objs 590.00 ± 8% +24.5% 734.75 ± 3% slabinfo.file_lock_cache.num_objs 7627 +12.3% 8568 ± 5% slabinfo.free_nid.active_objs 7627 +12.3% 8568 ± 5% slabinfo.free_nid.num_objs 6251 ± 5% +26.0% 7875 ± 5% slabinfo.fscrypt_info.active_objs 6251 ± 5% +26.0% 7875 ± 5% slabinfo.fscrypt_info.num_objs 13894 ± 6% +16.3% 16158 slabinfo.kmalloc-128.active_objs 13901 ± 6% +16.3% 16161 slabinfo.kmalloc-128.num_objs 2184 ± 2% +30.5% 2851 slabinfo.nfs_inode_cache.active_objs 2209 ± 3% +30.1% 2874 ± 2% slabinfo.nfs_inode_cache.num_objs 636.50 ± 14% +46.5% 932.25 ± 24% slabinfo.nfsd4_stateids.active_objs 636.50 ± 14% +46.5% 932.25 ± 24% slabinfo.nfsd4_stateids.num_objs 10514 ± 8% +25.0% 13138 ± 2% slabinfo.nfsd_drc.active_objs 10514 ± 8% +25.0% 13138 ± 2% slabinfo.nfsd_drc.num_objs 984.00 ± 11% +38.0% 1358 ± 22% slabinfo.numa_policy.active_objs 984.00 ± 11% +38.0% 1358 ± 22% slabinfo.numa_policy.num_objs 2062 ± 15% +17.2% 2417 ± 8% slabinfo.pool_workqueue.active_objs 2062 ± 15% +18.1% 2435 ± 7% slabinfo.pool_workqueue.num_objs 121248 ± 4% +25.6% 152261 slabinfo.radix_tree_node.active_objs 2173 ± 4% +25.3% 2722 slabinfo.radix_tree_node.active_slabs 121725 ± 4% +25.3% 152514 slabinfo.radix_tree_node.num_objs 2173 ± 4% +25.3% 2722 slabinfo.radix_tree_node.num_slabs 2126 ± 6% +15.2% 2449 ± 4% slabinfo.sock_inode_cache.active_objs 2126 ± 6% +15.2% 2449 ± 4% slabinfo.sock_inode_cache.num_objs 18605 +19.2% 22180 ± 3% slabinfo.vm_area_struct.active_objs 18668 +18.9% 22193 ± 3% slabinfo.vm_area_struct.num_objs 7.75 ± 5% -22.6% 6.00 nfsstat.Client.nfs.v3.commit.percent 7.00 +14.3% 8.00 nfsstat.Client.nfs.v3.getattr.percent 3.00 -33.3% 2.00 nfsstat.Client.nfs.v3.write 8.00 -25.0% 6.00 nfsstat.Client.nfs.v3.write.percent 4.50 ± 11% -33.3% 3.00 nfsstat.Client.nfs.v4.access.percent 2546 ± 8% +24.2% 3164 nfsstat.Client.nfs.v4.close 5.00 +40.0% 7.00 nfsstat.Client.nfs.v4.close.percent 2546 ± 8% +24.3% 3164 nfsstat.Client.nfs.v4.commit 5.00 +40.0% 7.00 nfsstat.Client.nfs.v4.commit.percent 2.00 -50.0% 1.00 nfsstat.Client.nfs.v4.confirm.percent 3.00 -33.3% 2.00 nfsstat.Client.nfs.v4.getattr.percent 2551 ± 8% +24.2% 3169 nfsstat.Client.nfs.v4.lookup 1.00 -100.0% 0.00 nfsstat.Client.nfs.v4.lookup_root.percent 1.00 -100.0% 0.00 nfsstat.Client.nfs.v4.null.percent 2558 ± 8% +24.1% 3174 nfsstat.Client.nfs.v4.open 17.25 ± 2% -14.5% 14.75 ± 2% nfsstat.Client.nfs.v4.open.percent 2.00 -50.0% 1.00 nfsstat.Client.nfs.v4.pathconf.percent 6.00 -25.0% 4.50 ± 11% nfsstat.Client.nfs.v4.server_caps.percent 2.00 -50.0% 1.00 nfsstat.Client.nfs.v4.setclntid.percent 2.00 -50.0% 1.00 nfsstat.Client.nfs.v4.statfs.percent 10189 ± 8% +24.3% 12662 nfsstat.Client.nfs.v4.write 22.50 ± 3% +26.7% 28.50 nfsstat.Client.nfs.v4.write.percent 20460 ± 8% +24.1% 25401 nfsstat.Client.rpc.authrefrsh 20460 ± 8% +24.1% 25401 nfsstat.Client.rpc.calls 20422 ± 8% +24.2% 25365 nfsstat.Server.nfs.v4.compound 1.00 -100.0% 0.00 nfsstat.Server.nfs.v4.null.percent 2552 ± 8% +24.2% 3170 nfsstat.Server.nfs.v4.operations.access 2546 ± 8% +24.2% 3164 nfsstat.Server.nfs.v4.operations.close 2546 ± 8% +24.2% 3164 nfsstat.Server.nfs.v4.operations.commit 17858 ± 8% +24.2% 22185 nfsstat.Server.nfs.v4.operations.getattr 5101 ± 8% +24.2% 6337 nfsstat.Server.nfs.v4.operations.getfh 2551 ± 8% +24.2% 3169 nfsstat.Server.nfs.v4.operations.lookup 4.00 -25.0% 3.00 nfsstat.Server.nfs.v4.operations.lookup.percent 2558 ± 8% +24.1% 3174 nfsstat.Server.nfs.v4.operations.open 6.00 -16.7% 5.00 nfsstat.Server.nfs.v4.operations.open.percent 20417 ± 8% +24.2% 25359 nfsstat.Server.nfs.v4.operations.putfh 1.00 -100.0% 0.00 nfsstat.Server.nfs.v4.operations.setcltid.percent 1.00 -100.0% 0.00 nfsstat.Server.nfs.v4.operations.setcltidconf.percent 10189 ± 8% +24.3% 12662 nfsstat.Server.nfs.v4.operations.write 6.25 ± 6% +36.0% 8.50 ± 5% nfsstat.Server.nfs.v4.operations.write.percent 20423 ± 8% +24.2% 25366 nfsstat.Server.packet.packets 20423 ± 8% +24.2% 25366 nfsstat.Server.packet.tcp 10194 ± 8% +24.3% 12667 nfsstat.Server.reply.cache.misses 10229 ± 8% +24.1% 12699 nfsstat.Server.reply.cache.nocache 20423 ± 8% +24.2% 25366 nfsstat.Server.rpc.calls 19.63 ± 6% -1.8 17.83 ± 8% perf-profile.calltrace.cycles-pp.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state.do_idle.cpu_startup_entry 10.22 ± 10% -1.8 8.43 ± 13% perf-profile.calltrace.cycles-pp.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state.do_idle 7.83 ± 11% -1.5 6.33 ± 14% perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state 4.69 ± 14% -1.0 3.70 ± 19% perf-profile.calltrace.cycles-pp.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt 4.20 ± 14% -0.9 3.29 ± 18% perf-profile.calltrace.cycles-pp.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt 1.23 ± 20% -0.3 0.89 ± 23% perf-profile.calltrace.cycles-pp.rcu_check_callbacks.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues 1.43 ± 8% -0.3 1.16 ± 10% perf-profile.calltrace.cycles-pp.perf_mux_hrtimer_handler.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt 1.04 ± 7% -0.1 0.90 ± 8% perf-profile.calltrace.cycles-pp.clockevents_program_event.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state 1.08 ± 4% -0.1 0.94 ± 7% perf-profile.calltrace.cycles-pp.run_timer_softirq.__softirqentry_text_start.irq_exit.smp_apic_timer_interrupt.apic_timer_interrupt 1.19 ± 9% +0.2 1.38 ± 7% perf-profile.calltrace.cycles-pp.__next_timer_interrupt.get_next_timer_interrupt.tick_nohz_next_event.tick_nohz_get_sleep_length.menu_select 1.90 ± 5% +0.2 2.14 ± 6% perf-profile.calltrace.cycles-pp.get_next_timer_interrupt.tick_nohz_next_event.tick_nohz_get_sleep_length.menu_select.do_idle 0.99 ± 11% +0.2 1.23 ± 11% perf-profile.calltrace.cycles-pp.serial8250_console_putchar.uart_console_write.serial8250_console_write.console_unlock.vprintk_emit 0.99 ± 11% +0.2 1.23 ± 11% perf-profile.calltrace.cycles-pp.wait_for_xmitr.serial8250_console_putchar.uart_console_write.serial8250_console_write.console_unlock 0.93 ± 7% +0.3 1.18 ± 4% perf-profile.calltrace.cycles-pp._raw_spin_trylock.rebalance_domains.__softirqentry_text_start.irq_exit.smp_apic_timer_interrupt 1.00 ± 10% +0.3 1.26 ± 12% perf-profile.calltrace.cycles-pp.uart_console_write.serial8250_console_write.console_unlock.vprintk_emit.printk 1.00 ± 10% +0.3 1.26 ± 11% perf-profile.calltrace.cycles-pp.serial8250_console_write.console_unlock.vprintk_emit.printk.irq_work_run_list 1.03 ± 10% +0.3 1.29 ± 11% perf-profile.calltrace.cycles-pp.irq_work_run_list.irq_work_run.smp_irq_work_interrupt.irq_work_interrupt.cpuidle_enter_state 1.03 ± 10% +0.3 1.29 ± 11% perf-profile.calltrace.cycles-pp.irq_work_interrupt.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary 1.03 ± 10% +0.3 1.29 ± 11% perf-profile.calltrace.cycles-pp.smp_irq_work_interrupt.irq_work_interrupt.cpuidle_enter_state.do_idle.cpu_startup_entry 1.03 ± 10% +0.3 1.29 ± 11% perf-profile.calltrace.cycles-pp.irq_work_run.smp_irq_work_interrupt.irq_work_interrupt.cpuidle_enter_state.do_idle 1.03 ± 10% +0.3 1.29 ± 11% perf-profile.calltrace.cycles-pp.printk.irq_work_run_list.irq_work_run.smp_irq_work_interrupt.irq_work_interrupt 1.03 ± 10% +0.3 1.29 ± 11% perf-profile.calltrace.cycles-pp.vprintk_emit.printk.irq_work_run_list.irq_work_run.smp_irq_work_interrupt 1.03 ± 10% +0.3 1.29 ± 11% perf-profile.calltrace.cycles-pp.console_unlock.vprintk_emit.printk.irq_work_run_list.irq_work_run 2.88 ± 3% +0.4 3.29 ± 4% perf-profile.calltrace.cycles-pp.tick_nohz_next_event.tick_nohz_get_sleep_length.menu_select.do_idle.cpu_startup_entry 3.66 ± 3% +0.4 4.11 ± 3% perf-profile.calltrace.cycles-pp.tick_nohz_get_sleep_length.menu_select.do_idle.cpu_startup_entry.start_secondary 3.05 ± 2% +0.5 3.54 ± 5% perf-profile.calltrace.cycles-pp.rebalance_domains.__softirqentry_text_start.irq_exit.smp_apic_timer_interrupt.apic_timer_interrupt 91.67 +0.7 92.33 perf-profile.calltrace.cycles-pp.secondary_startup_64 7.46 ± 5% +1.0 8.46 ± 4% perf-profile.calltrace.cycles-pp.menu_select.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64 56.78 +1.7 58.52 perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary 10.53 ± 10% -1.9 8.60 ± 13% perf-profile.children.cycles-pp.hrtimer_interrupt 8.14 ± 11% -1.6 6.51 ± 14% perf-profile.children.cycles-pp.__hrtimer_run_queues 4.88 ± 13% -1.1 3.79 ± 18% perf-profile.children.cycles-pp.tick_sched_timer 4.32 ± 13% -1.0 3.35 ± 18% perf-profile.children.cycles-pp.tick_sched_handle 1.82 ± 12% -0.4 1.44 ± 20% perf-profile.children.cycles-pp.scheduler_tick 1.30 ± 17% -0.4 0.93 ± 22% perf-profile.children.cycles-pp.rcu_check_callbacks 1.54 ± 9% -0.3 1.25 ± 9% perf-profile.children.cycles-pp.perf_mux_hrtimer_handler 1.25 ± 6% -0.2 1.03 ± 13% perf-profile.children.cycles-pp.ktime_get 1.15 ± 7% -0.2 0.97 ± 6% perf-profile.children.cycles-pp.clockevents_program_event 0.88 ± 6% -0.2 0.70 ± 6% perf-profile.children.cycles-pp.native_write_msr 1.17 ± 4% -0.2 1.01 ± 6% perf-profile.children.cycles-pp.run_timer_softirq 0.56 ± 9% -0.1 0.42 ± 18% perf-profile.children.cycles-pp.enqueue_hrtimer 0.16 ± 23% -0.1 0.08 ± 10% perf-profile.children.cycles-pp.__intel_pmu_enable_all 0.29 ± 15% -0.1 0.21 ± 29% perf-profile.children.cycles-pp.update_rq_clock 0.16 ± 18% -0.1 0.10 ± 27% perf-profile.children.cycles-pp.raise_softirq 0.08 ± 10% -0.0 0.04 ± 59% perf-profile.children.cycles-pp.calc_global_load_tick 0.22 ± 8% +0.1 0.27 ± 14% perf-profile.children.cycles-pp.pm_qos_read_value 1.42 ± 7% +0.2 1.59 ± 8% perf-profile.children.cycles-pp.__next_timer_interrupt 0.97 ± 6% +0.2 1.21 ± 3% perf-profile.children.cycles-pp._raw_spin_trylock 3.11 ± 5% +0.4 3.49 ± 4% perf-profile.children.cycles-pp.tick_nohz_next_event 3.81 ± 3% +0.4 4.23 ± 3% perf-profile.children.cycles-pp.tick_nohz_get_sleep_length 3.17 +0.5 3.62 ± 5% perf-profile.children.cycles-pp.rebalance_domains 91.87 +0.7 92.53 perf-profile.children.cycles-pp.do_idle 91.67 +0.7 92.33 perf-profile.children.cycles-pp.secondary_startup_64 91.67 +0.7 92.33 perf-profile.children.cycles-pp.cpu_startup_entry 7.71 ± 5% +0.9 8.65 ± 4% perf-profile.children.cycles-pp.menu_select 0.89 ± 16% -0.3 0.58 ± 23% perf-profile.self.cycles-pp.rcu_check_callbacks 0.88 ± 6% -0.2 0.70 ± 6% perf-profile.self.cycles-pp.native_write_msr 0.91 ± 6% -0.1 0.78 ± 5% perf-profile.self.cycles-pp.run_timer_softirq 0.42 ± 15% -0.1 0.29 ± 21% perf-profile.self.cycles-pp.timerqueue_add 0.39 ± 7% -0.1 0.28 ± 17% perf-profile.self.cycles-pp.scheduler_tick 0.29 ± 18% -0.1 0.23 ± 6% perf-profile.self.cycles-pp.clockevents_program_event 0.16 ± 18% -0.1 0.10 ± 27% perf-profile.self.cycles-pp.raise_softirq 0.08 ± 10% -0.0 0.04 ± 59% perf-profile.self.cycles-pp.calc_global_load_tick 0.10 ± 13% -0.0 0.06 ± 20% perf-profile.self.cycles-pp.rcu_bh_qs 0.07 ± 24% +0.0 0.11 ± 15% perf-profile.self.cycles-pp.rcu_nmi_enter 0.22 ± 8% +0.1 0.27 ± 14% perf-profile.self.cycles-pp.pm_qos_read_value 0.38 ± 3% +0.1 0.47 ± 6% perf-profile.self.cycles-pp.rebalance_domains 0.59 ± 11% +0.1 0.69 ± 5% perf-profile.self.cycles-pp.tick_nohz_next_event 0.78 ± 6% +0.1 0.92 ± 4% perf-profile.self.cycles-pp.__next_timer_interrupt 0.97 ± 6% +0.2 1.21 ± 3% perf-profile.self.cycles-pp._raw_spin_trylock fsmark.files_per_sec 74 +-+--------------------------------------------------------------------+ 72 +-O O O O O O O O O | O O O O O | 70 +-+ O O O | 68 +-+ | 66 +-+ | 64 +-+ | | | 62 +-+ | 60 +-+ | 58 +-+ | 56 +-+ | |.+..+. .+..+. .+. .+.. .+. .+. | 54 +-+ +.+..+ +.+..+ +..+ + +..+.+.+..+.+.+. +..+.+.+..+.| 52 +-+--------------------------------------------------------------------+ fsmark.time.elapsed_time 200 +-+-------------------------------------------------------------------+ | .+.. | 190 +-+ .+.+..+. .+.+.+.. .+.+.. .+. .+.+.+..+.+.+..+. .+..+.+ +.| | +..+ +.+. + + +. + | | | 180 +-+ | | | 170 +-+ | | | 160 +-+ | | | | | 150 +-+ O O O O O O | O O O O O O O O O | 140 +-O----------------O--------------------------------------------------+ fsmark.time.elapsed_time.max 200 +-+-------------------------------------------------------------------+ | .+.. | 190 +-+ .+.+..+. .+.+.+.. .+.+.. .+. .+.+.+..+.+.+..+. .+..+.+ +.| | +..+ +.+. + + +. + | | | 180 +-+ | | | 170 +-+ | | | 160 +-+ | | | | | 150 +-+ O O O O O O | O O O O O O O O O | 140 +-O----------------O--------------------------------------------------+ nfsstat.Client.nfs.v4.write.percent 29 O-+--O-O----O-O------O--O-O-O----O--O----------------------------------+ | | 28 +-O O O O O O | 27 +-+ | | | 26 +-+ | | | 25 +-+ | | | 24 +-+ | 23 +-+ :| | :| 22 +-+ +.+..+ +.+..+ +..+ + +..+.+.+..+.+.+.. +..+.+.+..+ | |+ + + + + + + .. + + + | 21 +-+--------------------------------------------------------------------+ nfsstat.Client.nfs.v4.commit.percent 7 O-O--O-O-O--O-O-O--O-O-O--O-O-O--O-O-O--------------------------------+ | | | | 6.5 +-+ | | | | | | | 6 +-+ | | | | | 5.5 +-+ | | | | | | | 5 +-+-------------------------------------------------------------------+ nfsstat.Client.nfs.v4.open.percent 18 +-+------------------------------------------------------------------+ |: : : : : : : + : : : + : : | 17.5 +-+ : : : : : : + : : : + : : | 17 +-+ +.+..+ +..+.+ + + +.+..+.+.+..+.+ +.+ +..+.| | | 16.5 +-+ | | | 16 +-+ | | | 15.5 +-+ | 15 O-O O O O O O O O O O O O O | | | 14.5 +-+ | | | 14 +-+--O--------O--------------------O---------------------------------+ nfsstat.Client.nfs.v4.close.percent 7 O-O--O-O-O--O-O-O--O-O-O--O-O-O--O-O-O--------------------------------+ | | | | 6.5 +-+ | | | | | | | 6 +-+ | | | | | 5.5 +-+ | | | | | | | 5 +-+-------------------------------------------------------------------+ [*] bisect-good sample [O] bisect-bad sample Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. Thanks, Xiaolong

2 years, 8 months

5
7
0 / 0

ad1754318c [ 7.413021] kernel BUG at include/linux/gfp.h:466!

by kernel test robot

Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is https://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git siginfo-testing commit ad1754318cc4dab034d959fcc8e2c34dec0e3d82 Author: Eric W. Biederman <ebiederm(a)xmission.com> AuthorDate: Mon Jul 23 15:20:37 2018 -0500 Commit: Eric W. Biederman <ebiederm(a)xmission.com> CommitDate: Tue Jul 24 16:26:33 2018 -0500 signal: Don't restart fork when signals come in. Wen Yang <wen.yang99(a)zte.com.cn> and majiang <ma.jiang(a)zte.com.cn> report that a periodic signal received during fork can cause fork to continually restart preventing an application from making progress. The code was being overly pesimistic. Fork needs to guarantee that a signal sent to multiple processes is logically delivered before the fork and just to the forking process or logically delivered after the fork to both the forking process and it's newly spawned child. For signals like periodic timers that are always delivered to a single process fork can safely complete and let them appear to logically delivered after the fork(). While examining this issue I also discovered that fork today will miss signals delivered to multiple processes during the fork and handled by another thread. Similarly the current code will also miss blocked signals that are delivered to multiple process, as those signals will not appear pending during fork. Add a list of each thread that is currently forking, and keep on that list a signal set that records all of the signals sent to multiple processes. When fork completes initialize the new processes shared_pending signal set with it. The calculate_sigpending function will see those signals and set TIF_SIGPENDING causing the new task to take the slow path to userspace to handle those signals. Making it appear as if those signals were received immediately after the fork. It is not possible to send real time signals to multiple processes and exceptions don't go to multiple processes, which means that that are no signals sent to multiple processes that require siginfo. This means it is safe to not bother collecting siginfo on signals sent during fork. The sigaction of a child of fork is initially the same as the sigaction of the parent process. So a signal the parent ignores the child will also initially ignore. Therefore it is safe to ignore signals sent to multiple processes and ignored by the forking process. Signals sent to only a single process or only a single thread and delivered during fork are treated as if they are received after the fork, and generally not dealt with. They won't cause any problems. V2: Added removal from the multiprocess list on failure. V3: Use -ERESTARTNOINTR directly Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=200447 Reported-by: Wen Yang <wen.yang99(a)zte.com.cn> and Reported-by: majiang <ma.jiang(a)zte.com.cn> Fixes: 4a2c7a7837da ("[PATCH] make fork() atomic wrt pgrp/session signals") Signed-off-by: "Eric W. Biederman" <ebiederm(a)xmission.com> 159fb05651 fork: Have new threads join on-going signal group stops ad1754318c signal: Don't restart fork when signals come in. +------------------------------------------+------------+------------+ | | 159fb05651 | ad1754318c | +------------------------------------------+------------+------------+ | boot_successes | 35 | 2 | | boot_failures | 0 | 13 | | kernel_BUG_at_include/linux/gfp.h | 0 | 13 | | invalid_opcode:#[##] | 0 | 13 | | RIP:copy_process | 0 | 13 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 13 | +------------------------------------------+------------+------------+ [ 7.379068] Freeing unused kernel memory: 188K [ 7.397925] x86/mm: Checked W+X mappings: passed, no W+X pages found. [ 7.399618] rodata_test: all tests were successful [ 7.409207] random: init: uninitialized urandom read (12 bytes read) [ 7.411666] ------------[ cut here ]------------ [ 7.413021] kernel BUG at include/linux/gfp.h:466! [ 7.414818] invalid opcode: 0000 [#1] PREEMPT SMP [ 7.416134] CPU: 1 PID: 1 Comm: init Not tainted 4.18.0-rc1-00020-gad17543 #1 [ 7.417936] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 7.420211] RIP: 0010:copy_process+0x7cc/0x1bb0 [ 7.421485] Code: 8b 3d 90 d5 7e 01 be c0 00 60 00 89 45 18 e8 fb 3f 13 00 48 85 c0 49 89 c4 74 cf 83 7d 18 ff 0f 84 5e fa ff ff e9 4e fa ff ff <0f> 0b 4c 89 e7 e8 1a 53 0d 00 85 c0 0f 85 7a fe ff ff 48 89 de 4c [ 7.426166] RSP: 0018:ffff88000fc6bd68 EFLAGS: 00010206 [ 7.427570] RAX: 000000000fc6be18 RBX: 0000000001200011 RCX: 0000000000000000 [ 7.429373] RDX: 0000000000000000 RSI: 000000000000005a RDI: ffff88001fd83e80 [ 7.431164] RBP: ffff88000fc6be50 R08: 0000000000000004 R09: 0000000000000000 [ 7.432960] R10: ffff88001fd81000 R11: 0000000000000000 R12: ffff88001fd81000 [ 7.434752] R13: 00007efc763c49d0 R14: 0000000000000000 R15: 0000000000000000 [ 7.436535] FS: 00007efc763c4700(0000) GS:ffff88001d600000(0000) knlGS:0000000000000000 [ 7.438753] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.440258] CR2: 00007efc763c9000 CR3: 000000001f1e6000 CR4: 00000000000006a0 [ 7.442055] Call Trace: [ 7.442902] ? kvm_sched_clock_read+0x9/0x20 [ 7.444113] ? kvm_clock_read+0x25/0x40 [ 7.445259] ? kvm_sched_clock_read+0x9/0x20 [ 7.446477] _do_fork+0xa5/0x3f0 [ 7.447484] ? __might_sleep+0x50/0x90 [ 7.448599] ? __might_fault+0x29/0x30 [ 7.449713] ? _copy_to_user+0x66/0x80 [ 7.450831] __x64_sys_clone+0x22/0x30 [ 7.451937] do_syscall_64+0x5d/0x110 [ 7.453041] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 7.454404] RIP: 0033:0x7efc75420126 [ 7.455475] Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 0c 25 10 00 00 00 31 d2 4d 8d 91 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 41 01 00 00 85 c0 41 89 c4 0f 85 4b 01 00 [ 7.460175] RSP: 002b:00007ffdd995e510 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 7.462308] RAX: ffffffffffffffda RBX: 00007ffdd995e510 RCX: 00007efc75420126 [ 7.464099] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 7.465902] RBP: 00007ffdd995e570 R08: 0000000000000001 R09: 00007efc763c4700 [ 7.467687] R10: 00007efc763c49d0 R11: 0000000000000246 R12: 0000000000000000 [ 7.469488] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 [ 7.471275] Modules linked in: [ 7.472995] ---[ end trace 46857ad44e271661 ]--- [ 7.474292] RIP: 0010:copy_process+0x7cc/0x1bb0 # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 336f4d5a0cf9a9ef5714c8e73290820b1e4a7799 acb1872577b346bd15ab3a3f8dff780d6cca4b70 -- git bisect good db2c12af4e82ee2fa8e4d28ef17c0d62a234c6d0 # 16:45 G 11 0 0 0 Merge 'linux-review/Gustavo-A-R-Silva/mailbox-xgene-slimpro-Fix-potential-NULL-pointer-dereference/20180728-160049' into devel-hourly-2018073011 git bisect good 15146f5bf013d7dda5e95c74fc0da160362814e2 # 16:56 G 11 0 0 0 Merge 'linux-review/Jia-Ju-Bai/net-nvidia-forcedeth-Replace-GFP_ATOMIC-with-GFP_KERNEL-in-nv_probe/20180728-012049' into devel-hourly-2018073011 git bisect good 93328c4026996becf9d856e4ed74672f6e8e78b5 # 17:07 G 11 0 0 0 Merge 'linux-review/Jia-Ju-Bai/video-fbdev-add-the-dependency-of-broadsheetfb-in-Kconfig/20180727-180657' into devel-hourly-2018073011 git bisect good afd12c321712240fc66709000a6e6af17ffc0dfe # 17:20 G 11 0 0 0 Merge 'kvms390/hlp_vsie' into devel-hourly-2018073011 git bisect good c28736279a15d7753bac09ba667df00ce10322b5 # 17:37 G 11 0 0 0 Merge 'kvm/master' into devel-hourly-2018073011 git bisect bad 048cebf2bc43ba21ee23caa67a0c1756e5fc0de5 # 17:50 B 0 2 17 0 Merge 'userns/siginfo-testing' into devel-hourly-2018073011 git bisect good 9eeaab07d31f43a3d0e2b3797e60df92b6e1c466 # 18:14 G 11 0 0 0 Merge 'random/master' into devel-hourly-2018073011 git bisect good 3137667d9bbcba39db1090b6a7c2ea6ec3329ff6 # 18:23 G 11 0 0 0 Merge 'hch-misc/net-poll-cleanup' into devel-hourly-2018073011 git bisect good 0102498083d58d8b17759642c602b525215e1a54 # 18:36 G 11 0 0 0 signal: Pass pid type into group_send_sig_info git bisect good 0729614992c946f6e8ccb9ef260aea1f06993df0 # 18:45 G 11 0 0 0 signal: Push pid type down into complete_signal. git bisect good 73ce6fe330cf55ee1b7de4bcdc6e0706f1ee436c # 18:58 G 11 0 0 0 signal: Add calculate_sigpending() git bisect bad ad1754318cc4dab034d959fcc8e2c34dec0e3d82 # 19:12 B 0 2 17 0 signal: Don't restart fork when signals come in. git bisect good 159fb056514ad8b1459128e8140ef6ce2af30478 # 19:26 G 11 0 0 0 fork: Have new threads join on-going signal group stops # first bad commit: [ad1754318cc4dab034d959fcc8e2c34dec0e3d82] signal: Don't restart fork when signals come in. git bisect good 159fb056514ad8b1459128e8140ef6ce2af30478 # 19:28 G 31 0 0 0 fork: Have new threads join on-going signal group stops # extra tests with debug options git bisect bad ad1754318cc4dab034d959fcc8e2c34dec0e3d82 # 19:38 B 0 1 16 0 signal: Don't restart fork when signals come in. # extra tests on HEAD of linux-devel/devel-hourly-2018073011 git bisect bad 336f4d5a0cf9a9ef5714c8e73290820b1e4a7799 # 19:43 B 0 365 384 0 0day head guard for 'devel-hourly-2018073011' # extra tests on tree/branch userns/siginfo-testing git bisect bad ad1754318cc4dab034d959fcc8e2c34dec0e3d82 # 19:45 B 0 13 29 0 signal: Don't restart fork when signals come in. # extra tests with first bad commit reverted git bisect good f6d9006c6389f5141f78c0f7ee0d31f9a0dcb2ad # 19:55 G 11 0 0 0 Revert "signal: Don't restart fork when signals come in." --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/lkp Intel Corporation

2 years, 8 months

2
1
0 / 0

[lkp-robot] [mm] 9092c71bb7: blogbench.write_score -12.3% regression

by kernel test robot

Greeting, FYI, we noticed a -12.3% regression of blogbench.write_score and a +9.6% improvement of blogbench.read_score due to commit: commit: 9092c71bb724dba2ecba849eae69e5c9d39bd3d2 ("mm: use sc->priority for slab shrink targets") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master in testcase: blogbench on test machine: 16 threads Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz with 8G memory with following parameters: disk: 1SSD fs: btrfs cpufreq_governor: performance test-description: Blogbench is a portable filesystem benchmark that tries to reproduce the load of a real-world busy file server. test-url: https://www.pureftpd.org/project/blogbench Details are as below: --------------------------------------------------------------------------------------------------> To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml ========================================================================================= compiler/cpufreq_governor/disk/fs/kconfig/rootfs/tbox_group/testcase: gcc-7/performance/1SSD/btrfs/x86_64-rhel-7.2/debian-x86_64-2016-08-31.cgz/lkp-bdw-de1/blogbench commit: fcb2b0c577 ("mm: show total hugetlb memory consumption in /proc/meminfo") 9092c71bb7 ("mm: use sc->priority for slab shrink targets") fcb2b0c577f145c7 9092c71bb724dba2ecba849eae ---------------- -------------------------- %stddev %change %stddev \ | \ 3256 -12.3% 2854 blogbench.write_score 1235237 ± 2% +9.6% 1354163 blogbench.read_score 28050912 -10.1% 25212230 blogbench.time.file_system_outputs 6481995 ± 3% +25.0% 8105320 ± 2% blogbench.time.involuntary_context_switches 906.00 +13.7% 1030 blogbench.time.percent_of_cpu_this_job_got 2552 +14.0% 2908 blogbench.time.system_time 173.80 +8.4% 188.32 blogbench.time.user_time 19353936 +3.6% 20045728 blogbench.time.voluntary_context_switches 8719514 +13.0% 9850451 softirqs.RCU 2.97 ± 5% -0.7 2.30 ± 3% mpstat.cpu.idle% 24.92 -6.5 18.46 mpstat.cpu.iowait% 0.65 ± 2% +0.1 0.75 mpstat.cpu.soft% 67.76 +6.7 74.45 mpstat.cpu.sys% 50206 -10.7% 44858 vmstat.io.bo 49.25 -9.1% 44.75 ± 2% vmstat.procs.b 224125 -1.8% 220135 vmstat.system.cs 48903 +10.7% 54134 vmstat.system.in 3460654 +10.8% 3834883 meminfo.Active 3380666 +11.0% 3752872 meminfo.Active(file) 1853849 -17.4% 1530415 meminfo.Inactive 1836507 -17.6% 1513054 meminfo.Inactive(file) 551311 -10.3% 494265 meminfo.SReclaimable 196525 -12.6% 171775 meminfo.SUnreclaim 747837 -10.9% 666040 meminfo.Slab 8.904e+08 -24.9% 6.683e+08 cpuidle.C1.time 22971020 -12.8% 20035820 cpuidle.C1.usage 2.518e+08 ± 3% -31.7% 1.72e+08 cpuidle.C1E.time 821393 ± 2% -33.3% 548003 cpuidle.C1E.usage 75460078 ± 2% -23.3% 57903768 ± 2% cpuidle.C3.time 136506 ± 3% -25.3% 101956 ± 3% cpuidle.C3.usage 56892498 ± 4% -23.3% 43608427 ± 4% cpuidle.C6.time 85034 ± 3% -33.9% 56184 ± 3% cpuidle.C6.usage 24373567 -24.5% 18395538 cpuidle.POLL.time 449033 ± 2% -10.8% 400493 cpuidle.POLL.usage 1832 +9.3% 2002 turbostat.Avg_MHz 22967645 -12.8% 20032521 turbostat.C1 18.43 -4.6 13.85 turbostat.C1% 821328 ± 2% -33.3% 547948 turbostat.C1E 5.21 ± 3% -1.6 3.56 turbostat.C1E% 136377 ± 3% -25.3% 101823 ± 3% turbostat.C3 1.56 ± 2% -0.4 1.20 ± 3% turbostat.C3% 84404 ± 3% -34.0% 55743 ± 3% turbostat.C6 1.17 ± 4% -0.3 0.90 ± 4% turbostat.C6% 25.93 -26.2% 19.14 turbostat.CPU%c1 0.12 ± 3% -19.1% 0.10 ± 9% turbostat.CPU%c3 14813304 +10.7% 16398388 turbostat.IRQ 38.19 +3.6% 39.56 turbostat.PkgWatt 4.51 +4.5% 4.71 turbostat.RAMWatt 8111200 ± 13% -63.2% 2986242 ± 48% proc-vmstat.compact_daemon_free_scanned 1026719 ± 30% -81.2% 193485 ± 30% proc-vmstat.compact_daemon_migrate_scanned 2444 ± 21% -63.3% 897.50 ± 20% proc-vmstat.compact_daemon_wake 8111200 ± 13% -63.2% 2986242 ± 48% proc-vmstat.compact_free_scanned 755491 ± 32% -81.6% 138856 ± 28% proc-vmstat.compact_isolated 1026719 ± 30% -81.2% 193485 ± 30% proc-vmstat.compact_migrate_scanned 137.75 ± 34% +2.8e+06% 3801062 ± 2% proc-vmstat.kswapd_inodesteal 6749 ± 20% -53.6% 3131 ± 12% proc-vmstat.kswapd_low_wmark_hit_quickly 844991 +11.2% 939487 proc-vmstat.nr_active_file 3900576 -10.5% 3490567 proc-vmstat.nr_dirtied 459789 -17.8% 377930 proc-vmstat.nr_inactive_file 137947 -10.3% 123720 proc-vmstat.nr_slab_reclaimable 49165 -12.6% 42989 proc-vmstat.nr_slab_unreclaimable 1382 ± 11% -26.2% 1020 ± 20% proc-vmstat.nr_writeback 3809266 -10.7% 3403350 proc-vmstat.nr_written 844489 +11.2% 938974 proc-vmstat.nr_zone_active_file 459855 -17.8% 378121 proc-vmstat.nr_zone_inactive_file 7055 ± 18% -52.0% 3389 ± 11% proc-vmstat.pageoutrun 33764911 ± 2% +21.3% 40946445 proc-vmstat.pgactivate 42044161 ± 2% +12.1% 47139065 proc-vmstat.pgdeactivate 92153 ± 20% -69.1% 28514 ± 24% proc-vmstat.pgmigrate_success 15212270 -10.7% 13591573 proc-vmstat.pgpgout 42053817 ± 2% +12.1% 47151755 proc-vmstat.pgrefill 11297 ±107% +1025.4% 127138 ± 21% proc-vmstat.pgscan_direct 19930162 -24.0% 15141439 proc-vmstat.pgscan_kswapd 19423629 -24.0% 14758807 proc-vmstat.pgsteal_kswapd 10868768 +184.8% 30950752 proc-vmstat.slabs_scanned 3361780 ± 3% -22.9% 2593327 ± 3% proc-vmstat.workingset_activate 4994722 ± 2% -43.2% 2835020 ± 2% proc-vmstat.workingset_refault 316427 -9.3% 286844 slabinfo.Acpi-Namespace.active_objs 3123 -9.4% 2829 slabinfo.Acpi-Namespace.active_slabs 318605 -9.4% 288623 slabinfo.Acpi-Namespace.num_objs 3123 -9.4% 2829 slabinfo.Acpi-Namespace.num_slabs 220514 -40.7% 130747 slabinfo.btrfs_delayed_node.active_objs 9751 -25.3% 7283 slabinfo.btrfs_delayed_node.active_slabs 263293 -25.3% 196669 slabinfo.btrfs_delayed_node.num_objs 9751 -25.3% 7283 slabinfo.btrfs_delayed_node.num_slabs 6383 ± 8% -12.0% 5615 ± 2% slabinfo.btrfs_delayed_ref_head.num_objs 9496 +15.5% 10969 slabinfo.btrfs_extent_buffer.active_objs 9980 +20.5% 12022 slabinfo.btrfs_extent_buffer.num_objs 260933 -10.7% 233136 slabinfo.btrfs_extent_map.active_objs 9392 -10.6% 8396 slabinfo.btrfs_extent_map.active_slabs 263009 -10.6% 235107 slabinfo.btrfs_extent_map.num_objs 9392 -10.6% 8396 slabinfo.btrfs_extent_map.num_slabs 271938 -10.3% 243802 slabinfo.btrfs_inode.active_objs 9804 -10.6% 8768 slabinfo.btrfs_inode.active_slabs 273856 -10.4% 245359 slabinfo.btrfs_inode.num_objs 9804 -10.6% 8768 slabinfo.btrfs_inode.num_slabs 7085 ± 5% -5.5% 6692 ± 2% slabinfo.btrfs_path.num_objs 311936 -16.4% 260797 slabinfo.dentry.active_objs 7803 -9.6% 7058 slabinfo.dentry.active_slabs 327759 -9.6% 296439 slabinfo.dentry.num_objs 7803 -9.6% 7058 slabinfo.dentry.num_slabs 2289 -23.3% 1755 ± 6% slabinfo.proc_inode_cache.active_objs 2292 -19.0% 1856 ± 6% slabinfo.proc_inode_cache.num_objs 261546 -12.3% 229485 slabinfo.radix_tree_node.active_objs 9404 -11.9% 8288 slabinfo.radix_tree_node.active_slabs 263347 -11.9% 232089 slabinfo.radix_tree_node.num_objs 9404 -11.9% 8288 slabinfo.radix_tree_node.num_slabs 1140424 ± 12% +40.2% 1598980 ± 14% sched_debug.cfs_rq:/.MIN_vruntime.max 790.55 +13.0% 893.20 ± 3% sched_debug.cfs_rq:/.exec_clock.stddev 1140425 ± 12% +40.2% 1598982 ± 14% sched_debug.cfs_rq:/.max_vruntime.max 0.83 ± 10% +21.5% 1.00 ± 8% sched_debug.cfs_rq:/.nr_running.avg 3.30 ± 99% +266.3% 12.09 ± 13% sched_debug.cfs_rq:/.removed.load_avg.avg 153.02 ± 97% +266.6% 560.96 ± 13% sched_debug.cfs_rq:/.removed.runnable_sum.avg 569.93 ±102% +173.2% 1556 ± 14% sched_debug.cfs_rq:/.removed.runnable_sum.stddev 1.42 ± 60% +501.5% 8.52 ± 34% sched_debug.cfs_rq:/.removed.util_avg.avg 19.88 ± 59% +288.9% 77.29 ± 16% sched_debug.cfs_rq:/.removed.util_avg.max 5.05 ± 58% +342.3% 22.32 ± 22% sched_debug.cfs_rq:/.removed.util_avg.stddev 791.44 ± 3% +47.7% 1168 ± 8% sched_debug.cfs_rq:/.util_avg.avg 1305 ± 6% +33.2% 1738 ± 5% sched_debug.cfs_rq:/.util_avg.max 450.25 ± 11% +66.2% 748.17 ± 14% sched_debug.cfs_rq:/.util_avg.min 220.82 ± 8% +21.1% 267.46 ± 5% sched_debug.cfs_rq:/.util_avg.stddev 363118 ± 11% -23.8% 276520 ± 11% sched_debug.cpu.avg_idle.avg 726003 ± 8% -30.8% 502313 ± 4% sched_debug.cpu.avg_idle.max 202629 ± 3% -32.2% 137429 ± 18% sched_debug.cpu.avg_idle.stddev 31.96 ± 28% +54.6% 49.42 ± 14% sched_debug.cpu.cpu_load[3].min 36.21 ± 25% +64.0% 59.38 ± 6% sched_debug.cpu.cpu_load[4].min 1007 ± 5% +20.7% 1216 ± 7% sched_debug.cpu.curr->pid.avg 4.50 ± 5% +14.8% 5.17 ± 5% sched_debug.cpu.nr_running.max 2476195 -11.8% 2185022 sched_debug.cpu.nr_switches.max 212888 -26.6% 156172 ± 3% sched_debug.cpu.nr_switches.stddev 3570 ± 2% -58.7% 1474 ± 2% sched_debug.cpu.nr_uninterruptible.max -803.67 -28.7% -573.38 sched_debug.cpu.nr_uninterruptible.min 1004 ± 2% -50.4% 498.55 ± 3% sched_debug.cpu.nr_uninterruptible.stddev 2478809 -11.7% 2189310 sched_debug.cpu.sched_count.max 214130 -26.5% 157298 ± 3% sched_debug.cpu.sched_count.stddev 489430 ± 2% -16.6% 408309 ± 2% sched_debug.cpu.sched_goidle.avg 724333 ± 2% -28.2% 520263 ± 2% sched_debug.cpu.sched_goidle.max 457611 -18.1% 374746 ± 3% sched_debug.cpu.sched_goidle.min 62957 ± 2% -47.4% 33138 ± 3% sched_debug.cpu.sched_goidle.stddev 676053 ± 2% -15.4% 571816 ± 2% sched_debug.cpu.ttwu_local.max 42669 ± 3% +22.3% 52198 sched_debug.cpu.ttwu_local.min 151873 ± 2% -18.3% 124118 ± 2% sched_debug.cpu.ttwu_local.stddev blogbench.write_score 3300 +-+------------------------------------------------------------------+ 3250 +-+ +. .+ +. .+ : : : +. .+ .+.+.+. .| |: +. .+ +.+.+.+ + + + : +. : : +. + +.+ + + | 3200 +-+ + +.+ + : + + : + + | 3150 +-+.+ ++ +.+ | 3100 +-+ | 3050 +-+ | | | 3000 +-+ | 2950 +-+ O O | 2900 +-O O O O | 2850 +-+ O O O O O O O OO O O O | | O O O O | 2800 O-+ O O | 2750 +-+------------------------------------------------------------------+ [*] bisect-good sample [O] bisect-bad sample Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. Thanks, Xiaolong

2 years, 8 months

3
8
0 / 0

[lkp-robot] [shmem] 85766f621c: vm-scalability.throughput -15.5% regression

by kernel test robot

Greeting, FYI, we noticed a -15.5% regression of vm-scalability.throughput due to commit: commit: 85766f621c492a9aa7904050ad2f80893ab2a8fd ("shmem: Convert shmem_add_to_page_cache to XArray") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master in testcase: vm-scalability on test machine: 4 threads Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz with 8G memory with following parameters: runtime: 300s size: 16G test: shm-xread-rand cpufreq_governor: performance test-description: The motivation behind this suite is to exercise functions and regions of the mm/ of the Linux kernel which are of interest to us. test-url: https://git.kernel.org/cgit/linux/kernel/git/wfg/vm-scalability.git/ Details are as below: --------------------------------------------------------------------------------------------------> To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml ========================================================================================= compiler/cpufreq_governor/kconfig/rootfs/runtime/size/tbox_group/test/testcase: gcc-7/performance/x86_64-rhel-7.2/debian-x86_64-2018-04-03.cgz/300s/16G/lkp-ivb-d02/shm-xread-rand/vm-scalability commit: 85b67aaaa5 ("shmem: Convert find_swap_entry to XArray") 85766f621c ("shmem: Convert shmem_add_to_page_cache to XArray") 85b67aaaa59cd76a 85766f621c492a9aa7904050ad ---------------- -------------------------- %stddev %change %stddev \ | \ 190175 -15.5% 160733 ± 21% vm-scalability.throughput 47700 +99.1% 94958 ± 3% vm-scalability.median 0.03 ± 15% +38.6% 0.05 ± 81% vm-scalability.stddev 96.91 -47.6% 50.75 ± 5% vm-scalability.time.elapsed_time 96.91 -47.6% 50.75 ± 5% vm-scalability.time.elapsed_time.max 878016 ± 2% -98.3% 14720 ± 53% vm-scalability.time.involuntary_context_switches 4024745 -0.0% 4024725 vm-scalability.time.maximum_resident_set_size 1497244 -14.3% 1283635 ± 5% vm-scalability.time.minor_page_faults 4096 +0.0% 4096 vm-scalability.time.page_size 375.00 -54.1% 172.25 ± 22% vm-scalability.time.percent_of_cpu_this_job_got 11.18 ± 3% -53.6% 5.19 ± 5% vm-scalability.time.system_time 352.62 -76.3% 83.60 ± 27% vm-scalability.time.user_time 18105273 -56.2% 7921056 ± 24% vm-scalability.workload 2677 ± 4% -42.1% 1549 ± 9% interrupts.CAL:Function_call_interrupts 74956 ± 11% -49.1% 38140 ± 19% softirqs.RCU 10283 ± 4% +166.8% 27439 ± 11% softirqs.SCHED 196048 -43.5% 110676 ± 6% softirqs.TIMER 79.95 -0.2% 79.79 ± 2% boot-time.boot 70.20 ± 2% -0.0% 70.17 ± 2% boot-time.dhcp 299.76 ± 2% -0.2% 299.06 ± 2% boot-time.idle 72.80 ± 2% -0.2% 72.62 ± 2% boot-time.kernel_boot 2.80 ± 6% +46.8 49.56 ± 20% mpstat.cpu.idle% 0.03 ± 34% -0.0 0.02 ± 28% mpstat.cpu.soft% 4.65 ± 4% +0.2 4.83 ± 34% mpstat.cpu.sys% 92.52 -46.9 45.59 ± 20% mpstat.cpu.usr% 1029 -3.3% 995.00 vmstat.memory.buff 4825193 -3.4% 4663456 vmstat.memory.cache 2875885 +6.4% 3059946 vmstat.memory.free 0.00 -100.0% 0.00 vmstat.procs.b 4.00 -50.0% 2.00 ± 35% vmstat.procs.r 20841 +49.8% 31217 vmstat.system.cs 13121 +37.1% 17983 vmstat.system.in 43219 ± 10% +755.6% 369768 ± 61% cpuidle.C1.time 1375 ± 15% +1197.9% 17855 ± 68% cpuidle.C1.usage 1256903 ± 68% +3335.5% 43180596 ± 3% cpuidle.C1E.time 21308 ± 69% +3424.9% 751082 ± 4% cpuidle.C1E.usage 39665 ± 25% +351.9% 179230 ± 40% cpuidle.C3.time 160.75 ± 18% +311.8% 662.00 ± 32% cpuidle.C3.usage 7135782 ± 18% +666.0% 54661249 ± 27% cpuidle.C6.time 7706 ± 17% +668.0% 59186 ± 23% cpuidle.C6.usage 301.25 ± 39% +1868.8% 5931 ± 37% cpuidle.POLL.time 29.00 ± 44% +3090.5% 925.25 ± 49% cpuidle.POLL.usage 2510 ± 20% +2.6% 2576 ± 16% slabinfo.anon_vma.active_objs 2607 ± 13% +0.7% 2627 ± 15% slabinfo.anon_vma.num_objs 1193 ± 10% +2.9% 1228 ± 9% slabinfo.cred_jar.active_objs 1193 ± 10% +2.9% 1228 ± 9% slabinfo.cred_jar.num_objs 107.75 ± 13% +107.2% 223.25 ± 54% slabinfo.dmaengine-unmap-16.active_objs 115.25 ± 19% +111.9% 244.25 ± 61% slabinfo.dmaengine-unmap-16.num_objs 7200 ± 12% +8.9% 7840 ± 6% slabinfo.kmalloc-32.active_objs 7200 ± 12% +8.9% 7840 ± 6% slabinfo.kmalloc-32.num_objs 5248 ± 8% -0.2% 5238 ± 4% slabinfo.kmalloc-8.active_objs 5248 ± 8% -0.2% 5238 ± 4% slabinfo.kmalloc-8.num_objs 3455 ± 5% +19.2% 4119 ± 4% slabinfo.pid.active_objs 4570 ± 7% +0.9% 4613 ± 5% slabinfo.pid.num_objs 24874 -1.4% 24521 slabinfo.radix_tree_node.active_objs 24874 -1.3% 24563 slabinfo.radix_tree_node.num_objs 3221 -46.7% 1717 ± 18% turbostat.Avg_MHz 97.84 -45.7 52.18 ± 18% turbostat.Busy% 3300 -0.0% 3299 turbostat.Bzy_MHz 1375 ± 15% +1198.2% 17856 ± 68% turbostat.C1 0.01 +0.2 0.18 ± 69% turbostat.C1% 21308 ± 69% +3425.0% 751108 ± 4% turbostat.C1E 0.32 ± 69% +20.5 20.78 ± 2% turbostat.C1E% 161.25 ± 17% +310.7% 662.25 ± 32% turbostat.C3 0.01 +0.1 0.09 ± 36% turbostat.C3% 7713 ± 17% +667.3% 59186 ± 23% turbostat.C6 1.82 ± 18% +24.9 26.73 ± 33% turbostat.C6% 1.38 ± 22% +3185.0% 45.33 ± 14% turbostat.CPU%c1 0.01 ± 34% -60.0% 0.01 ±100% turbostat.CPU%c3 0.77 ± 44% +220.4% 2.48 ±126% turbostat.CPU%c6 13.59 -3.8% 13.08 ± 6% turbostat.CorWatt 49.50 -3.5% 47.75 ± 2% turbostat.CoreTmp 350.00 +0.0% 350.00 turbostat.GFXMHz 1305924 -27.1% 952039 ± 4% turbostat.IRQ 0.04 ± 30% -100.0% 0.00 turbostat.Pkg%pc2 0.12 ± 10% -100.0% 0.00 turbostat.Pkg%pc6 47.00 ± 4% -1.6% 46.25 ± 2% turbostat.PkgTmp 30.99 -1.9% 30.41 ± 3% turbostat.PkgWatt 3292 -0.0% 3292 turbostat.TSC_MHz 5.878e+10 ± 3% -51.3% 2.861e+10 ± 53% perf-stat.branch-instructions 1.64 ± 14% +0.8 2.45 ± 86% perf-stat.branch-miss-rate% 9.698e+08 ± 18% -49.4% 4.904e+08 ±105% perf-stat.branch-misses 91.01 -18.6 72.41 ± 26% perf-stat.cache-miss-rate% 4.227e+09 -55.8% 1.868e+09 ± 87% perf-stat.cache-misses 4.645e+09 -53.7% 2.148e+09 ± 78% perf-stat.cache-references 2026235 -19.2% 1636525 ± 4% perf-stat.context-switches 4.83 ± 4% -50.7% 2.39 ± 32% perf-stat.cpi 1.255e+12 -72.6% 3.435e+11 ± 70% perf-stat.cpu-cycles 13403 ± 17% -85.7% 1914 ± 5% perf-stat.cpu-migrations 5.39 ± 3% -1.8 3.57 ± 58% perf-stat.dTLB-load-miss-rate% 3.877e+09 -57.0% 1.668e+09 ± 88% perf-stat.dTLB-load-misses 6.807e+10 ± 2% -50.5% 3.37e+10 ± 57% perf-stat.dTLB-loads 0.02 ± 20% +0.0 0.07 ± 69% perf-stat.dTLB-store-miss-rate% 6310413 ± 22% -6.8% 5881564 ± 31% perf-stat.dTLB-store-misses 2.53e+10 ± 2% -47.4% 1.331e+10 ± 49% perf-stat.dTLB-stores 89.37 -18.3 71.07 ± 14% perf-stat.iTLB-load-miss-rate% 10852282 ± 31% +98.0% 21484353 ± 50% perf-stat.iTLB-load-misses 1333714 ± 48% +446.8% 7292385 ± 6% perf-stat.iTLB-loads 2.601e+11 ± 3% -50.8% 1.278e+11 ± 51% perf-stat.instructions 25902 ± 23% -66.0% 8814 ± 95% perf-stat.instructions-per-iTLB-miss 0.21 ± 4% +126.5% 0.47 ± 33% perf-stat.ipc 1626010 -16.2% 1362182 ± 5% perf-stat.minor-faults 1626011 -16.2% 1362184 ± 5% perf-stat.page-faults 14363 ± 3% +4.0% 14938 ± 40% perf-stat.path-length 306033 ± 7% +501.9% 1842050 ± 51% meminfo.Active 305962 ± 7% +502.0% 1841980 ± 51% meminfo.Active(anon) 74019 -48.2% 38339 ± 5% meminfo.AnonHugePages 235389 -1.5% 231743 meminfo.AnonPages 1041 -2.2% 1017 meminfo.Buffers 4827393 -2.3% 4714606 meminfo.Cached 18164 ± 8% +32.3% 24031 ± 7% meminfo.CmaFree 204800 +0.0% 204800 meminfo.CmaTotal 4023392 +0.0% 4023392 meminfo.CommitLimit 4265286 -2.5% 4158052 meminfo.Committed_AS 8191029 +0.1% 8195721 meminfo.DirectMap2M 79997 ± 5% -5.9% 75305 ± 2% meminfo.DirectMap4k 2048 +0.0% 2048 meminfo.Hugepagesize 3877131 -42.6% 2224654 ± 41% meminfo.Inactive 3875926 -42.6% 2223471 ± 41% meminfo.Inactive(anon) 1205 -1.8% 1183 meminfo.Inactive(file) 3603 -1.7% 3541 meminfo.KernelStack 3932052 -2.8% 3822786 meminfo.Mapped 2715637 +5.0% 2850785 meminfo.MemAvailable 2824985 +4.8% 2960247 meminfo.MemFree 8046788 +0.0% 8046788 meminfo.MemTotal 34324 -50.5% 16985 ± 18% meminfo.PageTables 48267 -0.4% 48065 meminfo.SReclaimable 20732 -0.7% 20579 meminfo.SUnreclaim 3946053 -2.9% 3833269 meminfo.Shmem 69000 -0.5% 68645 meminfo.Slab 881118 -0.0% 881102 meminfo.Unevictable 3.436e+10 +0.0% 3.436e+10 meminfo.VmallocTotal 76751 ± 4% +500.6% 460938 ± 51% proc-vmstat.nr_active_anon 58905 -1.5% 58008 proc-vmstat.nr_anon_pages 67403 +4.7% 70593 proc-vmstat.nr_dirty_background_threshold 134972 +4.7% 141360 proc-vmstat.nr_dirty_threshold 1205133 -2.2% 1178739 proc-vmstat.nr_file_pages 4613 ± 4% +29.8% 5989 ± 7% proc-vmstat.nr_free_cma 708248 +4.5% 740205 proc-vmstat.nr_free_pages 966805 -42.6% 555343 ± 41% proc-vmstat.nr_inactive_anon 300.50 -2.0% 294.50 proc-vmstat.nr_inactive_file 3601 -1.7% 3542 proc-vmstat.nr_kernel_stack 978954 -2.9% 950733 proc-vmstat.nr_mapped 8544 -50.4% 4237 ± 18% proc-vmstat.nr_page_table_pages 984538 -2.7% 958151 proc-vmstat.nr_shmem 12063 -0.5% 12004 proc-vmstat.nr_slab_reclaimable 5182 -0.7% 5144 proc-vmstat.nr_slab_unreclaimable 220278 -0.0% 220275 proc-vmstat.nr_unevictable 76754 ± 4% +500.5% 460940 ± 51% proc-vmstat.nr_zone_active_anon 966805 -42.6% 555343 ± 41% proc-vmstat.nr_zone_inactive_anon 300.50 -2.0% 294.50 proc-vmstat.nr_zone_inactive_file 220278 -0.0% 220275 proc-vmstat.nr_zone_unevictable 1162127 -3.6% 1120485 proc-vmstat.numa_hit 1162127 -3.6% 1120485 proc-vmstat.numa_local 1006996 -5.2% 954325 ± 5% proc-vmstat.pgactivate 247442 -10.8% 220800 proc-vmstat.pgalloc_dma32 936515 -3.6% 903231 proc-vmstat.pgalloc_normal 1630736 -16.2% 1366671 ± 5% proc-vmstat.pgfault 595443 ± 62% +1.1% 601843 ± 83% proc-vmstat.pgfree 2173 +0.0% 2173 proc-vmstat.pgpgin 2048 +0.0% 2049 proc-vmstat.pgpgout 168.36 ±173% +248.0% 585.83 ±173% sched_debug.cfs_rq:/.MIN_vruntime.avg 673.46 ±173% +248.0% 2343 ±173% sched_debug.cfs_rq:/.MIN_vruntime.max 0.00 +0.0% 0.00 sched_debug.cfs_rq:/.MIN_vruntime.min 291.62 ±173% +248.0% 1014 ±173% sched_debug.cfs_rq:/.MIN_vruntime.stddev 29757 -99.9% 39.23 ± 25% sched_debug.cfs_rq:/.exec_clock.avg 30069 -99.9% 40.37 ± 24% sched_debug.cfs_rq:/.exec_clock.max 29419 -99.9% 37.80 ± 26% sched_debug.cfs_rq:/.exec_clock.min 248.80 ± 68% -99.6% 1.02 ± 13% sched_debug.cfs_rq:/.exec_clock.stddev 292413 ± 19% +13.2% 331037 ± 31% sched_debug.cfs_rq:/.load.avg 512518 ± 46% +11.9% 573270 ± 69% sched_debug.cfs_rq:/.load.max 187469 ± 7% +9.9% 205951 ± 11% sched_debug.cfs_rq:/.load.min 133934 ± 76% +10.8% 148390 ±112% sched_debug.cfs_rq:/.load.stddev 406.56 ± 15% +46.8% 596.94 ± 7% sched_debug.cfs_rq:/.load_avg.avg 634.38 ± 21% +85.7% 1178 ± 28% sched_debug.cfs_rq:/.load_avg.max 240.25 ± 11% +10.7% 266.00 ± 18% sched_debug.cfs_rq:/.load_avg.min 167.36 ± 42% +130.5% 385.79 ± 37% sched_debug.cfs_rq:/.load_avg.stddev 168.36 ±173% +248.0% 585.83 ±173% sched_debug.cfs_rq:/.max_vruntime.avg 673.46 ±173% +248.0% 2343 ±173% sched_debug.cfs_rq:/.max_vruntime.max 0.00 +0.0% 0.00 sched_debug.cfs_rq:/.max_vruntime.min 291.62 ±173% +248.0% 1014 ±173% sched_debug.cfs_rq:/.max_vruntime.stddev 131544 -93.1% 9126 sched_debug.cfs_rq:/.min_vruntime.avg 140526 ± 2% -89.2% 15201 ± 15% sched_debug.cfs_rq:/.min_vruntime.max 121759 ± 3% -97.1% 3486 ± 22% sched_debug.cfs_rq:/.min_vruntime.min 7074 ± 31% -36.0% 4528 ± 20% sched_debug.cfs_rq:/.min_vruntime.stddev 1.03 ± 5% +3.0% 1.06 ± 10% sched_debug.cfs_rq:/.nr_running.avg 1.12 ± 19% +11.1% 1.25 ± 34% sched_debug.cfs_rq:/.nr_running.max 1.00 +0.0% 1.00 sched_debug.cfs_rq:/.nr_running.min 0.05 ±173% +100.0% 0.11 ±173% sched_debug.cfs_rq:/.nr_running.stddev 3.41 ± 7% -100.0% 0.00 sched_debug.cfs_rq:/.nr_spread_over.avg 6.88 ± 13% -100.0% 0.00 sched_debug.cfs_rq:/.nr_spread_over.max 1.12 ± 72% -100.0% 0.00 sched_debug.cfs_rq:/.nr_spread_over.min 2.16 ± 27% -100.0% 0.00 sched_debug.cfs_rq:/.nr_spread_over.stddev 178.72 ± 3% -53.9% 82.38 ± 26% sched_debug.cfs_rq:/.runnable_load_avg.avg 274.75 ± 4% -50.9% 135.00 ± 38% sched_debug.cfs_rq:/.runnable_load_avg.max 141.12 ± 4% -70.8% 41.25 ± 44% sched_debug.cfs_rq:/.runnable_load_avg.min 56.87 ± 7% -35.1% 36.91 ± 66% sched_debug.cfs_rq:/.runnable_load_avg.stddev 212710 ± 24% -63.1% 78556 ± 28% sched_debug.cfs_rq:/.runnable_weight.avg 400157 ± 53% -69.9% 120568 ± 40% sched_debug.cfs_rq:/.runnable_weight.max 141898 ± 2% -70.5% 41804 ± 44% sched_debug.cfs_rq:/.runnable_weight.min 109826 ± 83% -72.0% 30704 ± 76% sched_debug.cfs_rq:/.runnable_weight.stddev -956.92 -348.7% 2379 ±119% sched_debug.cfs_rq:/.spread0.avg 8024 ± 76% +5.3% 8451 ± 28% sched_debug.cfs_rq:/.spread0.max -10742 -69.7% -3260 sched_debug.cfs_rq:/.spread0.min 7074 ± 31% -36.0% 4527 ± 20% sched_debug.cfs_rq:/.spread0.stddev 1028 ± 2% +0.5% 1033 ± 3% sched_debug.cfs_rq:/.util_avg.avg 1105 ± 5% +14.1% 1261 ± 6% sched_debug.cfs_rq:/.util_avg.max 929.62 ± 5% -8.2% 853.00 ± 14% sched_debug.cfs_rq:/.util_avg.min 67.44 ± 63% +130.4% 155.36 ± 41% sched_debug.cfs_rq:/.util_avg.stddev 222.56 ± 34% -71.7% 62.88 ± 58% sched_debug.cfs_rq:/.util_est_enqueued.avg 503.88 ± 33% -51.8% 242.75 ± 59% sched_debug.cfs_rq:/.util_est_enqueued.max 26.00 ±162% -95.2% 1.25 ± 34% sched_debug.cfs_rq:/.util_est_enqueued.min 195.39 ± 35% -46.8% 103.88 ± 60% sched_debug.cfs_rq:/.util_est_enqueued.stddev 473454 ± 14% +38.0% 653593 ± 9% sched_debug.cpu.avg_idle.avg 832956 ± 6% -3.1% 806762 ± 9% sched_debug.cpu.avg_idle.max 193874 ± 57% +124.3% 434865 ± 36% sched_debug.cpu.avg_idle.min 260441 ± 13% -45.2% 142845 ± 55% sched_debug.cpu.avg_idle.stddev 110437 -27.4% 80213 ± 2% sched_debug.cpu.clock.avg 110438 -27.4% 80214 ± 2% sched_debug.cpu.clock.max 110436 -27.4% 80211 ± 2% sched_debug.cpu.clock.min 0.83 ± 13% +25.6% 1.04 ± 12% sched_debug.cpu.clock.stddev 110437 -27.4% 80213 ± 2% sched_debug.cpu.clock_task.avg 110438 -27.4% 80214 ± 2% sched_debug.cpu.clock_task.max 110436 -27.4% 80211 ± 2% sched_debug.cpu.clock_task.min 0.83 ± 13% +25.6% 1.04 ± 12% sched_debug.cpu.clock_task.stddev 189.84 ± 4% -54.7% 85.94 ± 17% sched_debug.cpu.cpu_load[0].avg 289.12 ± 10% -44.1% 161.50 ± 23% sched_debug.cpu.cpu_load[0].max 141.12 ± 4% -71.1% 40.75 ± 17% sched_debug.cpu.cpu_load[0].min 63.08 ± 20% -21.9% 49.24 ± 30% sched_debug.cpu.cpu_load[0].stddev 185.59 ± 4% -52.2% 88.69 ± 12% sched_debug.cpu.cpu_load[1].avg 282.50 ± 6% -47.1% 149.50 ± 29% sched_debug.cpu.cpu_load[1].max 137.25 ± 4% -67.8% 44.25 ± 18% sched_debug.cpu.cpu_load[1].min 60.14 ± 14% -28.4% 43.04 ± 46% sched_debug.cpu.cpu_load[1].stddev 184.72 ± 3% -50.5% 91.38 ± 12% sched_debug.cpu.cpu_load[2].avg 275.38 ± 5% -47.7% 144.00 ± 30% sched_debug.cpu.cpu_load[2].max 138.75 ± 6% -62.3% 52.25 ± 24% sched_debug.cpu.cpu_load[2].min 55.48 ± 11% -30.6% 38.47 ± 50% sched_debug.cpu.cpu_load[2].stddev 186.38 ± 4% -47.5% 97.94 ± 14% sched_debug.cpu.cpu_load[3].avg 258.75 ± 4% -44.8% 142.75 ± 27% sched_debug.cpu.cpu_load[3].max 139.88 ± 6% -57.5% 59.50 ± 25% sched_debug.cpu.cpu_load[3].min 45.63 ± 13% -26.4% 33.58 ± 46% sched_debug.cpu.cpu_load[3].stddev 188.03 ± 5% -42.5% 108.06 ± 13% sched_debug.cpu.cpu_load[4].avg 240.62 ± 5% -40.2% 144.00 ± 23% sched_debug.cpu.cpu_load[4].max 142.50 ± 9% -51.9% 68.50 ± 18% sched_debug.cpu.cpu_load[4].min 36.69 ± 22% -21.2% 28.92 ± 43% sched_debug.cpu.cpu_load[4].stddev 966.06 ± 6% -25.7% 718.06 ± 9% sched_debug.cpu.curr->pid.avg 1299 -33.2% 868.25 sched_debug.cpu.curr->pid.max 705.75 ± 34% -40.1% 422.75 ± 37% sched_debug.cpu.curr->pid.min 237.21 ± 31% -24.8% 178.41 ± 35% sched_debug.cpu.curr->pid.stddev 325755 ± 34% -18.5% 265488 ± 5% sched_debug.cpu.load.avg 617677 ± 67% -44.1% 345304 ± 6% sched_debug.cpu.load.max 187469 ± 7% +9.9% 205951 ± 11% sched_debug.cpu.load.min 176372 ±100% -69.5% 53831 ± 27% sched_debug.cpu.load.stddev 500000 +0.0% 500000 sched_debug.cpu.max_idle_balance_cost.avg 500000 +0.0% 500000 sched_debug.cpu.max_idle_balance_cost.max 500000 +0.0% 500000 sched_debug.cpu.max_idle_balance_cost.min 4294 -0.0% 4294 sched_debug.cpu.next_balance.avg 4294 -0.0% 4294 sched_debug.cpu.next_balance.max 4294 -0.0% 4294 sched_debug.cpu.next_balance.min 0.00 ± 36% -10.2% 0.00 ± 65% sched_debug.cpu.next_balance.stddev 37966 -78.9% 8004 ± 4% sched_debug.cpu.nr_load_updates.avg 40554 ± 2% -70.4% 11997 ± 21% sched_debug.cpu.nr_load_updates.max 34281 ± 2% -87.1% 4427 ± 15% sched_debug.cpu.nr_load_updates.min 2438 ± 22% +19.2% 2905 ± 41% sched_debug.cpu.nr_load_updates.stddev 2.25 ± 17% +8.3% 2.44 ± 29% sched_debug.cpu.nr_running.avg 3.12 ± 20% +20.0% 3.75 ± 54% sched_debug.cpu.nr_running.max 1.62 ± 13% -23.1% 1.25 ± 34% sched_debug.cpu.nr_running.min 0.63 ± 22% +59.9% 1.00 ± 85% sched_debug.cpu.nr_running.stddev 254977 -96.8% 8201 ± 4% sched_debug.cpu.nr_switches.avg 674868 ± 21% -98.2% 11993 ± 22% sched_debug.cpu.nr_switches.max 37283 ± 51% -85.3% 5491 ± 17% sched_debug.cpu.nr_switches.min 258652 ± 28% -99.0% 2585 ± 58% sched_debug.cpu.nr_switches.stddev 0.03 ±173% +700.0% 0.25 ± 70% sched_debug.cpu.nr_uninterruptible.avg 22.25 ± 22% -34.8% 14.50 ± 18% sched_debug.cpu.nr_uninterruptible.max -20.75 -45.8% -11.25 sched_debug.cpu.nr_uninterruptible.min 16.52 ± 24% -38.8% 10.12 ± 14% sched_debug.cpu.nr_uninterruptible.stddev 247705 -99.6% 886.94 ± 51% sched_debug.cpu.sched_count.avg 667148 ± 21% -99.6% 2595 ± 62% sched_debug.cpu.sched_count.max 30369 ± 59% -99.5% 143.75 ± 7% sched_debug.cpu.sched_count.min 258206 ± 27% -99.6% 1005 ± 66% sched_debug.cpu.sched_count.stddev 2815 ± 66% -100.0% 0.00 sched_debug.cpu.sched_goidle.avg 8181 ± 73% -100.0% 0.00 sched_debug.cpu.sched_goidle.max 29.38 ±173% -100.0% 0.00 sched_debug.cpu.sched_goidle.min 3344 ± 71% -100.0% 0.00 sched_debug.cpu.sched_goidle.stddev 123801 -99.6% 440.69 ± 52% sched_debug.cpu.ttwu_count.avg 334777 ± 21% -99.6% 1307 ± 61% sched_debug.cpu.ttwu_count.max 14411 ± 67% -99.4% 81.25 ± 9% sched_debug.cpu.ttwu_count.min 129727 ± 27% -99.6% 507.89 ± 64% sched_debug.cpu.ttwu_count.stddev 122356 -99.7% 411.38 ± 55% sched_debug.cpu.ttwu_local.avg 332928 ± 21% -99.6% 1279 ± 62% sched_debug.cpu.ttwu_local.max 12947 ± 71% -99.6% 50.50 ± 8% sched_debug.cpu.ttwu_local.min 129617 ± 27% -99.6% 508.69 ± 64% sched_debug.cpu.ttwu_local.stddev 110435 -27.4% 80211 ± 2% sched_debug.cpu_clk 996147 +0.0% 996147 sched_debug.dl_rq:.dl_bw->bw.avg 996147 +0.0% 996147 sched_debug.dl_rq:.dl_bw->bw.max 996147 +0.0% 996147 sched_debug.dl_rq:.dl_bw->bw.min 4.295e+09 -0.0% 4.295e+09 sched_debug.jiffies 110435 -27.4% 80211 ± 2% sched_debug.ktime 950.00 +0.0% 950.00 sched_debug.rt_rq:/.rt_runtime.avg 950.00 +0.0% 950.00 sched_debug.rt_rq:/.rt_runtime.max 950.00 +0.0% 950.00 sched_debug.rt_rq:/.rt_runtime.min 110441 -27.4% 80216 ± 2% sched_debug.sched_clk 1.00 +0.0% 1.00 sched_debug.sched_clock_stable() 4118331 +0.0% 4118331 sched_debug.sysctl_sched.sysctl_sched_features 18.00 +0.0% 18.00 sched_debug.sysctl_sched.sysctl_sched_latency 2.25 +0.0% 2.25 sched_debug.sysctl_sched.sysctl_sched_min_granularity 1.00 +0.0% 1.00 sched_debug.sysctl_sched.sysctl_sched_tunable_scaling 3.00 +0.0% 3.00 sched_debug.sysctl_sched.sysctl_sched_wakeup_granularity vm-scalability.workload 2e+07 +-+---------------------------------------------------------------+ | | 1.8e+07 +-++.+.++.+.++.+.++.++.+.++.+.++.+.++.+.++.+.++.+.++.++.+.++.+.++.| 1.6e+07 +-+ | | | 1.4e+07 +-+ | O O O O O | 1.2e+07 +-+ | | | 1e+07 +-+ | 8e+06 +-OO O O O OO | | | 6e+06 +-+ | | | 4e+06 +-+----OO----O---O---O--------------------------------------------+ vm-scalability.time.user_time 400 +-+-------------------------------------------------------------------+ | | 350 +-+.++.+.+.++.+.+.++.+.+.++.+.+.++.+.+.++.+.+.++.+.+.++.+.+.++.+.+.++.| 300 +-+ | | | 250 +-+ | | | 200 O-+ O O O O | | | 150 +-+ | 100 +-O | | O O O OO O | 50 +-+ O O O O O | | | 0 +-+-------------------------------------------------------------------+ vm-scalability.time.system_time 13 +-+--------------------------------------------------------------------+ |:: :: : .+ | 12 +-+: + + :: + : : + + + + .| 11 +-+: :: .+ .++. .+.+ : + .+ :: : + : : : : +. .+ + + .+ | | : : .+ +. .+.+ + :: + :: : + :: :: + +. + + | 10 +-+ + + + + + + + + + | 9 +-+ | | | 8 +-+ | 7 +-+ | O O | 6 +-O OO OO O O | 5 +-+ O O O O O O | | O O | 4 +-+--------------------------------------------------------------------+ vm-scalability.time.percent_of_cpu_this_job_got 400 +-+-------------------------------------------------------------------+ |.+.++.+.+.++.+.+.++.+.+.++.+.+.++.+.+.++.+.+.++.+.+.++.+.+.++.+.+.++.| 350 +-+ | | | | | 300 +-+ | O O O O O | 250 +-+ | | | 200 +-O O O O | | O O O | | | 150 +-+ | | | 100 +-+----O-O----O---O----O----------------------------------------------+ vm-scalability.time.involuntary_context_switches 1e+06 +-+----------------------------------------------------------------+ 900000 +-++.+.++.+. +.+.+ .+.+.++.+.++.+.++.+.+ + .++.| | ++.+.++.+.+ + +. + +.+.+ .+ | 800000 +-+ + + | 700000 +-+ | | | 600000 +-+ | 500000 +-+ | 400000 +-+ | | | 300000 +-+ | 200000 +-+ | O O | 100000 +-+ O | 0 +-OO---OO-O-OO-O-O--O-OO-O-O---------------------------------------+ [*] bisect-good sample [O] bisect-bad sample Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. Thanks, Xiaolong

2 years, 8 months

3
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[lkp-robot] [confidence: ] 7757d607c6 [ 56.996267] BUG: Bad page map in process trinity-c2 pte:0d755065 pmd:0d55b067

by kernel test robot

Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/pti commit 7757d607c6b31867777de42e1fb0210b9c5d8b70 Author: Joerg Roedel <jroedel(a)suse.de> AuthorDate: Wed Jul 18 11:41:14 2018 +0200 Commit: Thomas Gleixner <tglx(a)linutronix.de> CommitDate: Fri Jul 20 01:11:48 2018 +0200 x86/pti: Allow CONFIG_PAGE_TABLE_ISOLATION for x86_32 Allow PTI to be compiled on x86_32. Signed-off-by: Joerg Roedel <jroedel(a)suse.de> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Tested-by: Pavel Machek <pavel(a)ucw.cz> Cc: "H . Peter Anvin" <hpa(a)zytor.com> Cc: linux-mm(a)kvack.org Cc: Linus Torvalds <torvalds(a)linux-foundation.org> Cc: Andy Lutomirski <luto(a)kernel.org> Cc: Dave Hansen <dave.hansen(a)intel.com> Cc: Josh Poimboeuf <jpoimboe(a)redhat.com> Cc: Juergen Gross <jgross(a)suse.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Borislav Petkov <bp(a)alien8.de> Cc: Jiri Kosina <jkosina(a)suse.cz> Cc: Boris Ostrovsky <boris.ostrovsky(a)oracle.com> Cc: Brian Gerst <brgerst(a)gmail.com> Cc: David Laight <David.Laight(a)aculab.com> Cc: Denys Vlasenko <dvlasenk(a)redhat.com> Cc: Eduardo Valentin <eduval(a)amazon.com> Cc: Greg KH <gregkh(a)linuxfoundation.org> Cc: Will Deacon <will.deacon(a)arm.com> Cc: aliguori(a)amazon.com Cc: daniel.gruss(a)iaik.tugraz.at Cc: hughd(a)google.com Cc: keescook(a)google.com Cc: Andrea Arcangeli <aarcange(a)redhat.com> Cc: Waiman Long <llong(a)redhat.com> Cc: "David H . Gutteridge" <dhgutteridge(a)sympatico.ca> Cc: joro(a)8bytes.org Link: https://lkml.kernel.org/r/1531906876-13451-38-git-send-email-joro@8bytes.org 6df934b92a x86/ldt: Enable LDT user-mapping for PAE 7757d607c6 x86/pti: Allow CONFIG_PAGE_TABLE_ISOLATION for x86_32 8c934e01a7 x86/pti: Check the return value of pti_user_pagetable_walk_pmd() 4edd5aa38c Merge branch 'linus' +-----------------------------------------------+------------+------------+------------+------------+ | | 6df934b92a | 7757d607c6 | 8c934e01a7 | 4edd5aa38c | +-----------------------------------------------+------------+------------+------------+------------+ | boot_successes | 1286 | 307 | 282 | 622 | | boot_failures | 5 | 3 | 4 | 3 | | Mem-Info | 5 | 1 | 2 | 1 | | invoked_oom-killer:gfp_mask=0x | 3 | | | | | BUG:Bad_page_map_in_process | 0 | 2 | 2 | 1 | | BUG:Bad_page_state_in_process | 0 | 2 | 2 | 1 | | BUG:Bad_rss-counter_state_mm:(ptrval)idx:#val | 0 | 1 | 2 | 1 | | kernel_BUG_at_mm/filemap.c | 0 | 0 | 1 | | | invalid_opcode:#[##] | 0 | 0 | 1 | | | EIP:unaccount_page_cache_page | 0 | 0 | 1 | | | Kernel_panic-not_syncing:Fatal_exception | 0 | 0 | 1 | 1 | | BUG:unable_to_handle_kernel | 0 | 0 | 0 | 1 | | Oops:#[##] | 0 | 0 | 0 | 1 | | EIP:put_pid | 0 | 0 | 0 | 1 | +-----------------------------------------------+------------+------------+------------+------------+ [child3:1823] fdatasync (148) returned ENOSYS, marking as inactive. [main] 12067 iterations. [F:7570 S:4509 HI:2917] [ 28.550832] warning: process `trinity-c0' used the obsolete bdflush system call [ 28.558277] Fix your initscripts? [ 50.480036] trinity-c0 (1412) used greatest stack depth: 5416 bytes left [ 56.996267] BUG: Bad page map in process trinity-c2 pte:0d755065 pmd:0d55b067 [ 56.997421] page:bfa00aa0 count:1 mapcount:-1 mapping:00000000 index:0x0 [ 56.998417] flags: 0xc000014(referenced|dirty) [ 56.999087] raw: 0c000014 00000100 00000200 00000000 00000000 00000000 fffffffe 00000001 [ 57.000311] page dumped because: bad pte [ 57.000909] addr:21632421 vm_flags:00100873 anon_vma:d90b494d mapping:7c8e0e7b index:3ec [ 57.002102] file:trinity fault:filemap_fault mmap:generic_file_mmap readpage:simple_readpage [ 57.003344] CPU: 0 PID: 1670 Comm: trinity-c2 Not tainted 4.18.0-rc4-00209-g7757d60 #1 [ 57.004505] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 57.005724] Call Trace: [ 57.006112] dump_stack+0x75/0xa9 [ 57.006612] ? dcache_readdir+0x15a/0x15a [ 57.007221] print_bad_pte+0x166/0x180 [ 57.007789] ? __lock_page_or_retry+0xa1/0xa1 [ 57.008436] ? read_cache_page_gfp+0x1c/0x1c [ 57.009072] ? dcache_readdir+0x15a/0x15a [ 57.009676] unmap_page_range+0x3e1/0x596 [ 57.010296] unmap_single_vma+0x8b/0x95 [ 57.010882] unmap_vmas+0x27/0x36 [ 57.011380] exit_mmap+0x93/0x121 [ 57.011905] mmput+0x44/0xbf [ 57.012342] do_exit+0x31d/0x802 [ 57.012836] ? _raw_spin_unlock_irq+0x22/0x44 [ 57.013489] do_group_exit+0x30/0x86 [ 57.014032] get_signal+0x5e0/0x605 [ 57.014560] do_signal+0x24/0x4c1 [ 57.015071] ? _raw_spin_unlock_irqrestore+0x3a/0x5f [ 57.015809] ? trace_hardirqs_on_caller+0x14b/0x166 [ 57.016549] ? trace_hardirqs_on_caller+0x14b/0x166 [ 57.017276] exit_to_usermode_loop+0x37/0x69 [ 57.017919] do_fast_syscall_32+0x217/0x249 [ 57.018542] entry_SYSENTER_32+0x70/0xc8 [ 57.019127] EIP: 0xa7fc8bf9 [ 57.019546] Code: ff 85 d2 74 02 89 02 5d c3 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 57.022438] EAX: fffffe00 EBX: a6d55000 ECX: 00085000 EDX: 00000002 [ 57.023356] ESI: 00000008 EDI: 00400000 EBP: fffffffc ESP: afe06e5c [ 57.024269] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000296 [ 57.025347] Disabling lock debugging due to kernel taint [main] trace_fd was -1 [main] kernel became tainted! (32/0) Last seed was 2560220593 trinity: Detected kernel tainting. Last seed was 2560220593 [main] exit_reason=7, but 3 children still running. [child1:2134] trace_fd was -1 [main] trace_fd was -1 [main] kernel became tainted! (32/0) Last seed was 1446110596 trinity: Detected kernel tainting. Last seed was 1446110596 [ 57.096675] BUG: Bad page state in process trinity-c2 pfn:0d755 [ 57.097586] page:bfa00aa0 count:0 mapcount:-1 mapping:00000000 index:0x0 [ 57.098572] flags: 0xc000014(referenced|dirty) [ 57.099238] raw: 0c000014 bdf45ce4 bdf45ce4 00000000 00000000 00000000 fffffffe 00000000 [ 57.104018] page dumped because: nonzero mapcount [ 57.104732] Modules linked in: [ 57.105200] CPU: 0 PID: 1670 Comm: trinity-c2 Tainted: G B 4.18.0-rc4-00209-g7757d60 #1 [ 57.106552] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 57.107782] Call Trace: [ 57.108160] dump_stack+0x75/0xa9 [ 57.108658] bad_page+0xec/0x109 [ 57.109146] free_pages_check_bad+0x40/0x42 [ 57.109768] free_unref_page_prepare+0x4d/0xef [ 57.110421] free_unref_page_list+0x3e/0x115 [ 57.111059] release_pages+0xd9/0x28f [ 57.111604] free_pages_and_swap_cache+0x72/0x78 [ 57.112292] tlb_flush_mmu_free+0x20/0x33 [ 57.112886] unmap_page_range+0x56f/0x596 [ 57.113486] unmap_single_vma+0x8b/0x95 [ 57.114058] unmap_vmas+0x27/0x36 [ 57.114553] exit_mmap+0x93/0x121 [ 57.115056] mmput+0x44/0xbf [ 57.115488] do_exit+0x31d/0x802 [ 57.115976] ? _raw_spin_unlock_irq+0x22/0x44 [ 57.116617] do_group_exit+0x30/0x86 [ 57.117154] get_signal+0x5e0/0x605 [ 57.117676] do_signal+0x24/0x4c1 [ 57.118175] ? _raw_spin_unlock_irqrestore+0x3a/0x5f [ 57.118912] ? trace_hardirqs_on_caller+0x14b/0x166 [ 57.119631] ? trace_hardirqs_on_caller+0x14b/0x166 [ 57.120347] exit_to_usermode_loop+0x37/0x69 [ 57.120981] do_fast_syscall_32+0x217/0x249 [ 57.121596] entry_SYSENTER_32+0x70/0xc8 [ 57.122178] EIP: 0xa7fc8bf9 [ 57.122592] Code: Bad RIP value. [ 57.123085] EAX: fffffe00 EBX: a6d55000 ECX: 00085000 EDX: 00000002 [ 57.124006] ESI: 00000008 EDI: 00400000 EBP: fffffffc ESP: afe06e5c [ 57.124921] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000296 [main] exit_reason=7, but 2 children still running. [main] trace_fd was -1 [main] kernel became tainted! (32/0) Last seed was 669750733 trinity: Detected kernel tainting. Last seed was 669750733 Failed to write post mortem log (Permission denied) # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 8c934e01a7ce685d98e970880f5941d79272c654 37b5dca2898d1471729194f45e281c2443eb9d6c -- git bisect good 8372d66865deb45ee3ec21401a9c80f231b728c8 # 23:36 G 304 0 4 4 x86/pgtable: Move pgdp kernel/user conversion functions to pgtable.h git bisect good b976690f5db26fbc7c2be413bfa0fbd270547a94 # 00:10 G 305 0 5 5 x86/mm/pti: Introduce pti_finalize() git bisect good 9bae3197e15dd5e03ce8e237db6fe4486b08a775 # 00:49 G 308 0 3 4 x86/ldt: Split out sanity check in map_ldt_struct() git bisect bad 5e8105950a8b3e03e805299b4d05020ee4eda31a # 01:12 B 131 1 4 4 x86/mm/pti: Add Warning when booting on a PCID capable CPU git bisect good 6df934b92a549cb3badb6d576f71aeb133e2f110 # 01:47 G 310 0 7 10 x86/ldt: Enable LDT user-mapping for PAE git bisect bad 7757d607c6b31867777de42e1fb0210b9c5d8b70 # 02:08 B 134 1 2 2 x86/pti: Allow CONFIG_PAGE_TABLE_ISOLATION for x86_32 # first bad commit: [7757d607c6b31867777de42e1fb0210b9c5d8b70] x86/pti: Allow CONFIG_PAGE_TABLE_ISOLATION for x86_32 git bisect good 6df934b92a549cb3badb6d576f71aeb133e2f110 # 03:14 G 900 0 9 19 x86/ldt: Enable LDT user-mapping for PAE # extra tests on HEAD of tip/x86/pti git bisect bad 8c934e01a7ce685d98e970880f5941d79272c654 # 03:15 B 279 2 0 6 x86/pti: Check the return value of pti_user_pagetable_walk_pmd() # extra tests on tree/branch tip/x86/pti git bisect bad 8c934e01a7ce685d98e970880f5941d79272c654 # 03:20 B 279 2 0 6 x86/pti: Check the return value of pti_user_pagetable_walk_pmd() # extra tests with first bad commit reverted git bisect good 90d0ce801fac8115d424e40a4a258aeed0e409dd # 03:58 G 302 0 7 7 Revert "x86/pti: Allow CONFIG_PAGE_TABLE_ISOLATION for x86_32" # extra tests on tree/branch tip/master git bisect bad 4edd5aa38cec47346e0d0a85fa43964828b982d0 # 04:37 B 257 1 5 6 Merge branch 'linus' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/lkp Intel Corporation

2 years, 8 months

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LKP July 2018