February 2017 - LKP - Ml01.01.Org

[lkp-robot] [ipc/sem.c] f4b5bafaf7: aim9.shared_memory.ops_per_sec 11.3% improvement

by kernel test robot

Greeting, FYI, we noticed a 11.3% improvement of aim9.shared_memory.ops_per_sec due to commit: commit: f4b5bafaf7c0a3b2f204e48c07b5335ed93266fa ("ipc/sem.c: avoid using spin_unlock_wait()") https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master in testcase: aim9 on test machine: 48 threads Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz with 64G memory with following parameters: testtime: 300s test: shared_memory cpufreq_governor: performance test-description: Suite IX is the "AIM Independent Resource Benchmark:" the famous synthetic benchmark. test-url: https://sourceforge.net/projects/aimbench/files/aim-suite9/ In addition to that, the commit also has significant impact on the following tests: +------------------+------------------------------------------------------------------+ | testcase: change | aim9: aim9.shared_memory.ops_per_sec 11.5% improvement | | test machine | 4 threads Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz with 4G memory | | test parameters | cpufreq_governor=performance | | | test=shared_memory | | | testtime=300s | +------------------+------------------------------------------------------------------+ Details are as below: --------------------------------------------------------------------------------------------------> To reproduce: git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml testcase/path_params/tbox_group/run: aim9/300s-shared_memory-performance/ivb43 6487b8d2876d7d39 f4b5bafaf7c0a3b2f204e48c07 ---------------- -------------------------- fail:runs %reproduction fail:runs | | | 1073533 ± 0% +11.3% 1194345 ± 0% aim9.shared_memory.ops_per_sec 3221639 ± 0% +11.2% 3584021 ± 0% aim9.time.minor_page_faults 28206 ± 8% -12.5% 24690 ± 0% meminfo.Active(file) 3.56 ± 1% -5.0% 3.38 ± 4% turbostat.RAMWatt 14128 ± 9% -12.8% 12326 ± 1% numa-meminfo.node0.Active(file) 14081 ± 8% -12.2% 12365 ± 0% numa-meminfo.node1.Active(file) 7051 ± 8% -12.5% 6172 ± 0% proc-vmstat.nr_active_file 7051 ± 8% -12.5% 6172 ± 0% proc-vmstat.nr_zone_active_file 3221639 ± 0% +11.2% 3584021 ± 0% time.minor_page_faults 41.48 ± 1% +9.7% 45.50 ± 1% time.user_time 3531 ± 9% -12.7% 3081 ± 0% numa-vmstat.node0.nr_active_file 3531 ± 9% -12.7% 3081 ± 0% numa-vmstat.node0.nr_zone_active_file 3520 ± 8% -12.2% 3091 ± 0% numa-vmstat.node1.nr_active_file 3520 ± 8% -12.2% 3091 ± 0% numa-vmstat.node1.nr_zone_active_file 1.26 ± 16% -70.4% 0.37 ± 71% perf-profile.calltrace.cycles-pp.pid_vnr.SYSC_semtimedop.sys_semop.entry_SYSCALL_64_fastpath 1.38 ± 18% -53.1% 0.65 ± 8% perf-profile.children.cycles-pp.pid_vnr 8.29 ± 8% -37.2% 5.20 ± 10% perf-profile.self.cycles-pp.SYSC_semtimedop 1.37 ± 19% -57.5% 0.58 ± 14% perf-profile.self.cycles-pp.pid_vnr 76641 ± 27% +64.8% 126335 ± 25% slabinfo.kmalloc-8.active_objs 76927 ± 27% +64.5% 126565 ± 25% slabinfo.kmalloc-8.num_objs 839.50 ± 4% -13.0% 730.00 ± 8% slabinfo.nsproxy.active_objs 839.50 ± 4% -13.0% 730.00 ± 8% slabinfo.nsproxy.num_objs 15877 ± 4% -6.7% 14819 ± 4% slabinfo.vm_area_struct.active_objs 15877 ± 4% -6.7% 14819 ± 4% slabinfo.vm_area_struct.num_objs 0.09 ±110% +188.8% 0.26 ± 31% sched_debug.cfs_rq:/.nr_spread_over.stddev 12.61 ± 31% -35.8% 8.10 ± 31% sched_debug.cfs_rq:/.removed_util_avg.stddev 7.42 ± 48% -48.3% 3.83 ± 83% sched_debug.cfs_rq:/.util_avg.min 341584 ± 4% +31.4% 448942 ± 5% sched_debug.cpu.avg_idle.min 138800 ± 3% -8.5% 127032 ± 1% sched_debug.cpu.avg_idle.stddev 1134 ± 12% -23.0% 873.83 ± 16% sched_debug.cpu.nr_switches.min 628.08 ± 39% -66.7% 209.39 ± 59% sched_debug.cpu.sched_count.min 215.04 ± 61% -91.7% 17.89 ± 88% sched_debug.cpu.sched_goidle.min 132.92 ± 30% -43.5% 75.06 ± 39% sched_debug.cpu.ttwu_count.min 3.713e+11 ± 4% +20.5% 4.476e+11 ± 7% perf-stat.branch-instructions 1.32 ± 5% -9.1% 1.20 ± 3% perf-stat.branch-miss-rate% 4.887e+09 ± 5% +9.4% 5.348e+09 ± 3% perf-stat.branch-misses 0.13 ± 6% -16.6% 0.11 ± 5% perf-stat.dTLB-load-miss-rate% 4.368e+11 ± 6% +17.7% 5.139e+11 ± 0% perf-stat.dTLB-loads 0.04 ± 10% -13.3% 0.04 ± 0% perf-stat.dTLB-store-miss-rate% 2.071e+12 ± 4% +20.4% 2.494e+12 ± 6% perf-stat.instructions 12681 ± 4% +18.0% 14964 ± 5% perf-stat.instructions-per-iTLB-miss 0.92 ± 1% +11.8% 1.03 ± 1% perf-stat.ipc 3784094 ± 0% +9.5% 4145210 ± 0% perf-stat.minor-faults 3784100 ± 0% +9.5% 4145210 ± 0% perf-stat.page-faults perf-stat.page-faults 4.5e+06 ++----------------------------------------------------------------+ O OO O OO O O OO O O O O | 4e+06 *+**.*.**.*.*.**.*.**.*.**.*.**.*.*.**.*.**.*.**.*.**.*.*.**.*.**.* 3.5e+06 ++ | | | 3e+06 ++ | 2.5e+06 ++ | | | 2e+06 ++ | 1.5e+06 ++ | | | 1e+06 ++ | 500000 ++ | | | 0 ++-----------------O----------------------------------------------+ perf-stat.minor-faults 4.5e+06 ++----------------------------------------------------------------+ O OO O OO O O OO O O O O | 4e+06 *+**.*.**.*.*.**.*.**.*.**.*.**.*.*.**.*.**.*.**.*.**.*.*.**.*.**.* 3.5e+06 ++ | | | 3e+06 ++ | 2.5e+06 ++ | | | 2e+06 ++ | 1.5e+06 ++ | | | 1e+06 ++ | 500000 ++ | | | 0 ++-----------------O----------------------------------------------+ aim9.shared_memory.ops_per_sec 1.2e+06 O+OO-O-OO-O-O-OO-O--O-O-O-----------------------------------------+ *.**.*.**.*.*.**.*.**.*.**.*.* *.*.**. .**.*. *. *.*. *.* 1e+06 ++ *.*.*.* * * *.*.* * | | | | | 800000 ++ | | | 600000 ++ | | | 400000 ++ | | | | | 200000 ++ | | | 0 ++-----------------O----------------------------------------------+ aim9.time.minor_page_faults 4e+06 ++----------------------------------------------------------------+ | O OO O O O | 3.5e+06 O+OO O OO.O.*. O*.*. | 3e+06 *+**.*.** **.*.**.*.* **.*.*.**.*.**.*.**.*.**.*.*.**.*.**.* | | 2.5e+06 ++ | | | 2e+06 ++ | | | 1.5e+06 ++ | 1e+06 ++ | | | 500000 ++ | | | 0 ++-----------------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

3 years, 11 months

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[lkp-robot] [PM / QOS] 3a8bc3c5ea: kernel_BUG_at_kernel/workqueue.c

by kernel test robot

FYI, we noticed the following commit: commit: 3a8bc3c5ea623f1658dbe002b93976a4ff19a2f7 ("PM / QOS: Add 'performance' request") https://git.linaro.org/people/vireshk/linux opp/genpd-performance-state in testcase: boot on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -m 512M caused below changes: +---------------------------------------------------+------------+------------+ | | 6ece60ef12 | 3a8bc3c5ea | +---------------------------------------------------+------------+------------+ | boot_successes | 1 | 0 | | boot_failures | 93 | 193 | | WARNING:at_lib/list_debug.c:#__list_add_valid | 31 | 54 | | BUG:kernel_hang_in_test_stage | 90 | 121 | | WARNING:at_drivers/usb/core/urb.c:#usb_submit_urb | 1 | 1 | | general_protection_fault:#[##]SMP | 0 | 39 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 71 | | kernel_BUG_at_kernel/workqueue.c | 0 | 19 | | invalid_opcode:#[##]SMP | 0 | 30 | | WARNING:at_fs/kernfs/dir.c:#kernfs_get | 0 | 1 | | BUG:unable_to_handle_kernel | 0 | 7 | | Oops | 0 | 7 | | kernel_BUG_at_mm/slub.c | 0 | 11 | +---------------------------------------------------+------------+------------+ [ 98.099740] evbug: Connected device: input3 (AT Translated Set 2 keyboard at isa0060/serio0/input0) [ 98.228482] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 98.287950] ------------[ cut here ]------------ [ 98.305941] kernel BUG at kernel/workqueue.c:3486! [ 98.328787] invalid opcode: 0000 [#1] SMP [ 98.345473] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.10.0-rc2-00051-g3a8bc3c #1 [ 98.376651] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014 [ 98.413393] task: ffff88001f720000 task.stack: ffff88001f724000 [ 98.434333] RIP: 0010:init_pwq+0xf/0xe3 [ 98.450692] RSP: 0000:ffff88001f727d38 EFLAGS: 00010202 [ 98.469653] RAX: ffffffff825e17c9 RBX: ffffffff825e17c9 RCX: 0000000000000441 [ 98.492725] RDX: ffff88001f409000 RSI: ffff880019c9f800 RDI: ffffffff825e17c9 [ 98.516020] RBP: ffff88001f727d58 R08: ffff88001f818180 R09: 0000000000000001 [ 98.541143] R10: ffffffff825e17c9 R11: 0000000000000003 R12: ffff88001f409000 [ 98.564148] R13: ffff880019c9f800 R14: ffff880019c9f800 R15: 0000000000000001 [ 98.587384] FS: 0000000000000000(0000) GS:ffff88001f800000(0000) knlGS:0000000000000000 [ 98.619557] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 98.639715] CR2: 0000000000000000 CR3: 000000000280f000 CR4: 00000000000006f0 [ 98.662730] Call Trace: [ 98.676173] ? alloc_unbound_pwq+0xb0/0xe7 [ 98.693023] apply_wqattrs_prepare+0x167/0x305 [ 98.710819] apply_workqueue_attrs_locked+0xb9/0xd0 To reproduce: git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email Thanks, Xiaolong

3 years, 11 months

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[lkp-robot] [x86, dax, pmem] 2e12109d1c: fio.write_bw_MBps -75% regression

by kernel test robot

Greeting, FYI, we noticed a -75% regression of fio.write_bw_MBps due to commit: commit: 2e12109d1c32c810088820478d21b5b7cd87a805 ("x86, dax, pmem: introduce 'copy_from_iter' dax operation") url: https://github.com/0day-ci/linux/commits/Dan-Williams/dax-pmem-move-cpu-c... in testcase: fio-basic on test machine: 56 threads Intel(R) Xeon(R) CPU E5-2695 v3 @ 2.30GHz with 256G memory with following parameters: disk: 2pmem fs: xfs mount_option: dax runtime: 200s nr_task: 50% time_based: tb rw: randwrite bs: 2M ioengine: sync test_size: 200G cpufreq_governor: performance test-description: Fio is a tool that will spawn a number of threads or processes doing a particular type of I/O action as specified by the user. test-url: https://github.com/axboe/fio Details are as below: --------------------------------------------------------------------------------------------------> To reproduce: git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml testcase/path_params/tbox_group/run: fio-basic/2pmem-xfs-dax-200s-50%-tb-randwrite-2M-sync-200G-performance/lkp-hsw-ep6 c42a4508649e40af 2e12109d1c32c810088820478d ---------------- -------------------------- %stddev change %stddev \ | \ 68769 ± 3% -75% 17370 fio.write_bw_MBps 34384 ± 3% -75% 8685 fio.write_iops 0.70 ± 20% 14149% 99.39 fio.latency_4ms% 745 ± 4% 327% 3182 fio.write_clat_mean_us 1580 ± 14% 137% 3752 ± 5% fio.write_clat_99%_us 1405 ± 17% 136% 3320 ± 3% fio.write_clat_90%_us 1456 ± 16% 133% 3392 fio.write_clat_95%_us 435 ± 27% -60% 175 ± 21% fio.write_clat_stddev 0.01 -100% 0.00 fio.latency_250us% 21.31 ± 36% -100% 0.00 fio.latency_2ms% 5122 8% 5530 fio.time.system_time 487.59 ± 12% -84% 79.88 ± 10% fio.time.user_time 59604 60810 vmstat.system.in 2351 -25% 1758 vmstat.system.cs 1191 19% 1413 turbostat.Avg_MHz 199 4% 206 turbostat.PkgWatt 51.36 50.78 turbostat.%Busy 205 -42% 118 turbostat.RAMWatt 0.00 ± 23% 224% 0.01 ± 4% perf-stat.dTLB-load-miss-rate% 0.09 66% 0.15 perf-stat.branch-miss-rate% 1.431e+13 ± 3% 13% 1.617e+13 perf-stat.cpu-cycles 2.893e+08 -19% 2.356e+08 perf-stat.branch-misses 468564 -26% 346074 perf-stat.context-switches 2.444e+08 ± 6% -39% 1.503e+08 perf-stat.iTLB-loads 1.26e+08 ± 27% -42% 72844209 ± 17% perf-stat.node-load-misses 3.148e+11 -51% 1.546e+11 perf-stat.branch-instructions 40098660 ± 22% -56% 17714563 ± 10% perf-stat.node-store-misses 326873 ± 34% -62% 122748 perf-stat.instructions-per-iTLB-miss 1.741e+12 -67% 5.7e+11 ± 7% perf-stat.dTLB-stores 1.776e+12 ± 11% -68% 5.699e+11 ± 12% perf-stat.dTLB-loads 5.629e+12 -69% 1.725e+12 perf-stat.instructions 0.39 ± 3% -73% 0.11 perf-stat.ipc 1.385e+11 ± 3% -75% 3.438e+10 perf-stat.cache-references perf-stat.instructions 7e+12 ++------------------------------------------------------------------+ | *. *. *. | 6e+12 ++* : *. .* *. .*.*.*. .*.*.* * : * * : * .*. | |: + : * : : * * : : + : : : + : : *. .* *.* 5e+12 ++ * : : : : * : : * : : *.* | * * * * :: | 4e+12 ++ * | | | 3e+12 ++ | | | 2e+12 ++ | O O O O O O O O O O O O O O O O O O O O O O O O O O | 1e+12 ++ | | | 0 ++--------------O---------------------------------------------------+ perf-stat.cache-references 1.8e+11 ++----------------------------------------------------------------+ | *. *. * | 1.6e+11 ++ + * * .*.*. .*.* + * + * | 1.4e+11 ++*.* + + : * .* *.* : *.* : *.* : *. .*.*.* |+ * : : * : + : + : : *.*.* | 1.2e+11 *+ :: * * :: | 1e+11 ++ * * | | | 8e+10 ++ | 6e+10 ++ | | | 4e+10 O+ O O O O O O O O O O O O O O OO | 2e+10 ++O O O O O O O O O | | | 0 ++--------------O-------------------------------------------------+ perf-stat.branch-instructions 4e+11 ++----------------------------------------------------------------+ | *. *. * | 3.5e+11 ++ : * * * *. .*. .*.*. : * : * | 3e+11 ++*. : + + : : :+ * * * *. : : *. : : *. .*.*.*.* |+ * * : : * + + * : + * : : *.* | 2.5e+11 *+ * * * :: | | * | 2e+11 ++ | | O | 1.5e+11 O+O O O O O O O O O O O O O O O O O O O O O O OO | 1e+11 ++ | | | 5e+10 ++ | | | 0 ++--------------O-------------------------------------------------+ perf-stat.dTLB-loads 3.5e+12 ++----------------------------------------------------------------+ | | 3e+12 ++ * | | :: | 2.5e+12 ++ * : : | | * *. .* :*.*. .*.*. .* : * *. * * *.* | 2e+12 ++ + + *.* : : * * :+ + + *. + + + * : + .*. | * * : : * * * * + : * *.*.| 1.5e+12 ++ * * * | | 1e+12 ++ | | O | 5e+11 O+O O O O O O O O O O O O O O O O O O O O O O OO | | | 0 ++--------------O-------------------------------------------------+ perf-stat.dTLB-stores 2.5e+12 ++----------------------------------------------------------------+ | .* | | *. .* : *. * | 2e+12 ++ : *. .* * .*.*.*.*.* : : * : * | | *. : * : :* : *. : : *. : : *. .*. .*.* |+ * : : :+ * : + * : : *.* * | 1.5e+12 *+ :: * * :: | | * * | 1e+12 ++ | | | | | 5e+11 O+O O O O O O O O O O O O O O O O O O O O O O O OO | | | | | 0 ++--------------O-------------------------------------------------+ perf-stat.context-switches 500000 ++------------*------------------------------------------*---*-----+ 450000 *+ .*. + + .*. .*.*. .* .*. .*. + * *.*.* | *.*.*.* * * *.*.* *.* *.*.*.* *.*.*.* * | 400000 ++ | 350000 O+O O O O O O O O O O O O O O O OO O O O O O O O O | | | 300000 ++ | 250000 ++ | 200000 ++ | | | 150000 ++ | 100000 ++ | | | 50000 ++ | 0 ++--------------O--------------------------------------------------+ perf-stat.ipc 0.45 ++--------------*-------*--------------------------------------------+ | * *.*. :+ .*.* + .*. .* * *.* * *.* * .*. | 0.4 ++ + + *.* : * * * + : + + : : + + : :+ .* *.* 0.35 ++ * + : + : * : : * : : *.* | * * * * :: | 0.3 ++ * | 0.25 ++ | | | 0.2 ++ | 0.15 ++ | | | 0.1 O+O O O O O O O O O O O O O O O O O O O O O O O O O | 0.05 ++ | | | 0 ++--------------O----------------------------------------------------+ fio.write_bw_MBps 80000 ++------------------------------------------------------------------+ | * *.*. *. .*.*.*. .*.*.* * *.* * *.* * 70000 ++ + + *.* : * * : : + + : : + + : *. .*.*. +| 60000 ++ * : : : : * : : * : : *.* * | * : : * * :: | 50000 ++ * * | | | 40000 ++ | | | 30000 ++ | 20000 ++ | O O O O O O O O O O O O O O O O O O O O O O O O O O | 10000 ++ | | | 0 ++--------------O---------------------------------------------------+ fio.write_iops 40000 ++------------------------------------------------------------------+ | * *.*. *. .*.*.*. .*.*.* * *.* * *.* * 35000 ++ + + *.* : * * : : + + : : + + : *. .*.*. +| 30000 ++ * : : : : * : : * : : *.* * | * : : * * :: | 25000 ++ * * | | | 20000 ++ | | | 15000 ++ | 10000 ++ | O O O O O O O O O O O O O O O O O O O O O O O O O O | 5000 ++ | | | 0 ++--------------O---------------------------------------------------+ fio.write_clat_mean_us 4000 ++-------------------------------------------------------------------+ | O | 3500 O+O O O O O O O O O O O O O O O | 3000 ++ O O O O O O O O O | | | 2500 ++ | | | 2000 ++ | | | 1500 ++ | 1000 ++ * | *. .*. .*.*.*. .*. .*. .*. .*. .*. .*. + + .*.*.*. .*.* 500 ++* *.* * *.*.* *.*.*. * *.* * *.* * * | | | 0 ++--------------O----------------------------------------------------+ fio.write_clat_90__us 4000 ++-------------------------------------------------------------------+ | O O O O O O O O O | 3500 O+ O O O O O O O O O O O O O O | 3000 ++ O O | | | 2500 ++ | | | 2000 ++ | * .*. .* .* .* .*. *. *.| 1500 ++ .*.*.* * + .*. .*. .*. .*.*. + .*.*.* + .*.*.* *. + * : * 1000 ++* * * * * * * * + : | | * | 500 ++ | | | 0 ++--------------O----------------------------------------------------+ fio.write_clat_95__us 4500 ++-------------------------------------------------------------------+ | O | 4000 ++O O | 3500 O+ O O O O O O O O O O O O O O O O O O O O | | O O | 3000 ++ | 2500 ++ | | | 2000 *+ .* * * * | 1500 ++ .*. .*.* + .*. .*. .*. .*. .. + .*. + + .*. + + .*.* *.* | * *.* * * * * * * *.* * *.* *.* + + | 1000 ++ * | 500 ++ | | | 0 ++--------------O----------------------------------------------------+ fio.latency_4ms_ 100 O+--O-------O-O----O-O---O---O-O-O---O-O-O-O---O-O-O--O---------------+ 90 ++O O O O O O O O | | | 80 ++ | 70 ++ | | | 60 ++ | 50 ++ | 40 ++ | | | 30 ++ | 20 ++ | | | 10 ++ | 0 *+*-*-*-*-*-*-*-O--*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*--*-*-*-*-*-*-*-*-* turbostat.Avg_MHz 1600 ++-------------------------------------------------------------------+ | | 1400 O+O O O O O O O O O O O O O O O O O O O O O O O O O | 1200 ++ .*.*.*. .*. .*.*.*. .*.*.*.*.. .*.*.*. .*.*.*. .*. .* *.* * *.* * *.* *.* * *.*.*.*.* | 1000 ++ | | | 800 ++ | | | 600 ++ | 400 ++ | | | 200 ++ | | | 0 ++--------------O----------------------------------------------------+ turbostat.RAMWatt 250 ++--------------------------------------------------------------------+ | | |.*. .*.*. .* *.. .*.*.*.*.*.*.*. .*. .*.*. .*. .*..*. .*. .*. .* 200 *+ * * + + * * * * * * *.*.* * | | * | | | 150 ++ | O O O O O O O O O O O O O O O O O O O O O O O O O O | 100 ++ | | | | | 50 ++ | | | | | 0 ++--------------O-----------------------------------------------------+ fio.time.user_time 800 ++--------------------------------------------------------------------+ | *. | 700 ++ * : * | 600 ++ :: : : | | : : .* : : * | 500 ++*. .*.*. *. : * + .* *. .* *. .* : : + + | |+ *.* *.*.*.. + * * + + *.* + + *.*. +: *.* *.* 400 *+ * * * * | | | 300 ++ | 200 ++ | | | 100 ++ O O O | O O O O O O O O O O O O O O O O O O O O O O O | 0 ++--------------O-----------------------------------------------------+ fio.time.system_time 6000 ++-------------------------------------------------------------------+ O O O O O O O O O O O O O O O O O O O O O O O O O O | 5000 *+*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*..*.*.*.*.*.*.*.*.*.*.*. .*.*.*.*.* | *.* | | | 4000 ++ | | | 3000 ++ | | | 2000 ++ | | | | | 1000 ++ | | | 0 ++--------------O----------------------------------------------------+ fio.latency_250us_ 0.6 ++--------------------------------------------------------------------+ | * | 0.5 ++ : | | * * * : | | : : : : | 0.4 ++ : : : : : | | : : * : : : : : : | 0.3 ++ : : : : : : : : : | | : : :: : : : : : : | 0.2 ++ : : : : : : : : : : | | : : : : : : : : : : | | : : : : : : : : : : | 0.1 ++: : : : : : : : : : | | : : : : : : : : : : | 0 *+*---*-*-*---*-*--*-*-*-*-*-*-*-*-*-*---*-*-*-*---*--*---*-*-*-*-*-*-* [*] 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

3 years, 11 months

1
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[lkp-robot] [mm, vmscan] fe23914ddd: fsmark.files_per_sec -11.1% regression

by kernel test robot

Greeting, FYI, we noticed a -11.1% regression of fsmark.files_per_sec due to commit: commit: fe23914dddb126a29ac4929415eb318f60d97cac ("mm, vmscan: consider eligible zones in get_scan_count") https://git.kernel.org/pub/scm/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: 1 nr_threads: 64 disk: 3HDD md: RAID5 fs: btrfs filesize: 4M test_size: 130G sync_method: NoSync 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 git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml testcase/path_params/tbox_group/run: fsmark/1-64-3HDD-RAID5-btrfs-4M-130G-NoSync-performance/ivb44 13b4e0592df44c15 fe23914dddb126a29ac4929415 ---------------- -------------------------- 57.60 -11% 51.20 fsmark.files_per_sec 608 10% 670 fsmark.time.elapsed_time 608 10% 670 fsmark.time.elapsed_time.max 141 5% 149 fsmark.time.system_time 613586 628565 fsmark.time.voluntary_context_switches 14682 ± 7% -25% 11031 ± 5% fsmark.time.involuntary_context_switches 301042 29% 389835 ± 5% interrupts.CAL:Function_call_interrupts 207732 -9% 188203 vmstat.io.bo 6654 6541 vmstat.system.cs 5.08 -4% 4.88 turbostat.RAMWatt 92 -5% 88 turbostat.Avg_MHz 3.23 ± 4% -8% 2.97 turbostat.%Busy 155081 ± 12% -1e+05 19550 ± 76% latency_stats.sum.btrfs_tree_lock.[btrfs].btrfs_search_slot.[btrfs].btrfs_insert_empty_items.[btrfs].btrfs_new_inode.[btrfs].btrfs_create.[btrfs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath 1454653 ± 3% -1e+06 209533 ± 47% latency_stats.sum.btrfs_tree_lock.[btrfs].btrfs_lock_root_node.[btrfs].btrfs_search_slot.[btrfs].btrfs_insert_empty_items.[btrfs].insert_with_overflow.[btrfs].btrfs_insert_dir_item.[btrfs].btrfs_add_link.[btrfs].btrfs_create.[btrfs].path_openat.do_filp_open.do_sys_open.SyS_open 3.351e+08 ± 6% -3e+08 71080683 ± 24% latency_stats.sum.wait_current_trans.[btrfs].start_transaction.[btrfs].btrfs_start_transaction.[btrfs].btrfs_create.[btrfs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath 17.26 ± 12% 31% 22.53 ± 15% perf-stat.node-store-miss-rate% 2.856e+11 ± 5% 14% 3.267e+11 ± 4% perf-stat.dTLB-loads 1.815e+09 ± 11% 14% 2.071e+09 ± 6% perf-stat.node-load-misses 1156825 10% 1268375 perf-stat.minor-faults 1156846 10% 1268396 perf-stat.page-faults 4058202 8% 4395013 perf-stat.context-switches 2.071e+08 ± 6% 8% 2.228e+08 perf-stat.iTLB-loads 32.23 ± 3% 7% 34.55 perf-stat.node-load-miss-rate% 2.322e+08 5% 2.441e+08 perf-stat.iTLB-load-misses 0.44 0.43 perf-stat.ipc 1.925e+10 ± 3% -7% 1.783e+10 ± 5% perf-stat.cache-references 1.702e+09 ± 9% -9% 1.542e+09 ± 6% perf-stat.branch-misses 49.17 -11% 43.60 ± 3% perf-stat.cache-miss-rate% 4.582e+09 -15% 3.904e+09 perf-stat.node-stores 9.459e+09 -18% 7.764e+09 ± 3% perf-stat.cache-misses 207580 -9% 188098 iostat.md0.wkB/s 12.24 ± 5% 42% 17.38 ± 10% iostat.sda.rrqm/s 103790 -9% 94071 iostat.sda.wkB/s 25722 -10% 23255 iostat.sda.wrqm/s 931 -16% 783 iostat.sda.avgrq-sz 120.88 -42% 69.92 ± 3% iostat.sda.r_await 26.14 -55% 11.88 ± 3% iostat.sda.avgqu-sz 117.72 -56% 52.03 ± 3% iostat.sda.await 117.47 -56% 51.76 ± 3% iostat.sda.w_await 15.66 ± 5% 37% 21.39 ± 8% iostat.sdb.rrqm/s 103763 -9% 94048 iostat.sdb.wkB/s 25717 -10% 23249 iostat.sdb.wrqm/s 930 -16% 783 iostat.sdb.avgrq-sz 120.42 -39% 73.21 ± 4% iostat.sdb.r_await 27.19 -54% 12.38 ± 3% iostat.sdb.avgqu-sz 122.32 -56% 54.23 ± 3% iostat.sdb.await 122.10 -56% 53.98 ± 3% iostat.sdb.w_await 11.84 ± 4% 41% 16.68 ± 7% iostat.sdc.rrqm/s 228 18% 270 iostat.sdc.w/s 103791 -9% 94074 iostat.sdc.wkB/s 25721 -10% 23246 iostat.sdc.wrqm/s 904 -21% 710 iostat.sdc.avgrq-sz 117.37 -40% 70.17 ± 3% iostat.sdc.r_await 26.85 -53% 12.71 iostat.sdc.avgqu-sz 118.03 -56% 52.24 ± 3% iostat.sdc.await 117.83 -56% 52.02 ± 3% iostat.sdc.w_await perf-stat.page-faults 1.3e+06 ++---------------------------------------------------------------+ | | 1.28e+06 O+O O OO O O O O | 1.26e+06 ++ O O OO O O | | O O O O | 1.24e+06 ++ | | | 1.22e+06 ++ | | | 1.2e+06 ++ | 1.18e+06 ++ | | | 1.16e+06 ++ .*. *. *.*. .*.* *. .*. .*. *.| *.**.* **. .* *.*.**.*.* *.** *.*.* * **.*.**.* * * 1.14e+06 ++----------*----------------------------------------------------+ perf-stat.minor-faults 1.3e+06 ++---------------------------------------------------------------+ | | 1.28e+06 O+O O OO O O O O | 1.26e+06 ++ O O OO O O | | O O O O | 1.24e+06 ++ | | | 1.22e+06 ++ | | | 1.2e+06 ++ | 1.18e+06 ++ | | | 1.16e+06 ++ .*. *. *.*. .*.* *. .*. .*. *.| *.**.* **. .* *.*.**.*.* *.** *.*.* * **.*.**.* * * 1.14e+06 ++----------*----------------------------------------------------+ fsmark.time.elapsed_time 680 ++--------------------------------------------------------------------+ | O O O O O | 670 O+ O O O O O OO O O O O O | 660 ++ O | | | 650 ++ | | | 640 ++ | | | 630 ++ | 620 ++ | | | 610 ++ .*. *. .*. *.*. .* .**.*. *. .*.| *.* * *.*.*.*.**.*.*.* * *.*.*.* *.*.*.*.* *.*.*.* * * 600 ++--------------------------------------------------------------------+ fsmark.time.elapsed_time.max 680 ++--------------------------------------------------------------------+ | O O O O O | 670 O+ O O O O O OO O O O O O | 660 ++ O | | | 650 ++ | | | 640 ++ | | | 630 ++ | 620 ++ | | | 610 ++ .*. *. .*. *.*. .* .**.*. *. .*.| *.* * *.*.*.*.**.*.*.* * *.*.*.* *.*.*.*.* *.*.*.* * * 600 ++--------------------------------------------------------------------+ fsmark.files_per_sec 58 ++---------------------------------------------------------------------+ *.*.*.**.*.*.*.*.*.*.**.*.*.*.*. .*.**.*. .*.*.*.**.*.*.*.*.*.*.**.*.*.* 57 ++ * * | | | 56 ++ | | | 55 ++ | | | 54 ++ | | | 53 ++ | | | 52 ++ | | | 51 O+O-O-OO-O-O-O-O-O-O-OO-O-O-O-O-O-O------------------------------------+ vmstat.io.bo 210000 ++------------------------------*--------*-------------------------+ *.*.**. .*.**.*.*.**.*.*. *. + **.*. + *.*.*.**.*.*.**.*.*. *.*.* | * * *.* * * | 205000 ++ | | | | | 200000 ++ | | | 195000 ++ | | | | | 190000 ++ O O | O OO O O O O O OO O O O O | | O O O | 185000 ++-----------------------------------------------------------------+ [*] 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

3 years, 11 months

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[lkp-robot] [mm/memblock] cc4a913fa5: WARNING:at_mm/memblock.c:#__next_mem_pfn_range

by kernel test robot

FYI, we noticed the following commit: commit: cc4a913fa513cdac8777c2714e6388465691faf8 ("mm/memblock: switch to use NUMA_NO_NODE instead of MAX_NUMNODES in for_each_mem_pfn_range()") url: https://github.com/0day-ci/linux/commits/Wei-Yang/mm-memblock-use-NUMA_NO... in testcase: trinity with following parameters: runtime: 300s test-description: Trinity is a linux system call fuzz tester. test-url: http://codemonkey.org.uk/projects/trinity/ on test machine: qemu-system-i386 -enable-kvm -m 256M caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): +------------------------------------------------+------------+------------+ | | 2d1ec173d5 | cc4a913fa5 | +------------------------------------------------+------------+------------+ | boot_successes | 6 | 0 | | boot_failures | 0 | 8 | | WARNING:at_mm/memblock.c:#__next_mem_pfn_range | 0 | 8 | | calltrace:SyS_open | 0 | 8 | +------------------------------------------------+------------+------------+ [ 0.000000] initial memory mapped: [mem 0x00000000-0x083fffff] [ 0.000000] Base memory trampoline at [8009b000] 9b000 size 16384 [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: CPU: 0 PID: 0 at mm/memblock.c:1088 __next_mem_pfn_range+0x5e/0x16e [ 0.000000] Usage of MAX_NUMNODES is deprecated. Use NUMA_NO_NODE instead [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.9.0-rc6-00135-gcc4a913 #1 [ 0.000000] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014 [ 0.000000] 87511ec0 86e241ad 8743bde0 8743bde0 87511ed8 86c48c2a 00000440 11a426ae [ 0.000000] 87511f5c 87511f54 87511ef4 86c48c68 00000009 00000000 87511eec 8743bde0 [ 0.000000] 87511f08 87511f1c 875eadb9 8743bd80 00000440 8743bde0 87511f5c 87511f54 [ 0.000000] Call Trace: [ 0.000000] [<86e241ad>] dump_stack+0x76/0xa9 [ 0.000000] [<86c48c2a>] __warn+0xba/0xd0 [ 0.000000] [<86c48c68>] warn_slowpath_fmt+0x28/0x30 [ 0.000000] [<875eadb9>] __next_mem_pfn_range+0x5e/0x16e [ 0.000000] [<875a84e6>] init_range_memory_mapping+0x3e/0x177 [ 0.000000] [<875e9fea>] ? memblock_find_in_range+0x3c/0x95 [ 0.000000] [<875a87c4>] init_mem_mapping+0x1a5/0x260 [ 0.000000] [<87594e3a>] setup_arch+0x7c0/0xb82 [ 0.000000] [<86c973b2>] ? vprintk_default+0x12/0x20 [ 0.000000] [<8758dcd8>] start_kernel+0x5b/0x40f [ 0.000000] [<8758d2c8>] i386_start_kernel+0xaf/0xc7 [ 0.000000] ---[ end trace 0000000000000000 ]--- [ 0.000000] BRK [0x07ea3000, 0x07ea3fff] PGTABLE [ 0.000000] RAMDISK: [mem 0x0f4f1000-0x0ffcffff] To reproduce: git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email Thanks, Xiaolong

3 years, 11 months

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LKP February 2017