FYI, we noticed the below changes on https://git.kernel.org/pub/scm/linux/kernel/git/daveh/x86-pkeys.git pkeys-v005-protsyscalls commit 2205cb3c40c2ba6521427c9f8f36b2d4f2f2a98d ("x86, pkeys: arch-specific protection bits")
========================================================================================= tbox_group/testcase/rootfs/kconfig/compiler/cpufreq_governor/test: lkp-xbm/will-it-scale/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/performance/pread1 commit: d1d70274836b555fdc790a4957ce5ca24b427bf4 2205cb3c40c2ba6521427c9f8f36b2d4f2f2a98d d1d70274836b555f 2205cb3c40c2ba6521427c9f8f ---------------- -------------------------- %stddev %change %stddev \ | \ 1440317 ± 0% +22.4% 1762590 ± 0% will-it-scale.per_thread_ops 313.14 ± 0% -2.1% 306.57 ± 0% will-it-scale.time.system_time 27.99 ± 0% +24.0% 34.71 ± 0% will-it-scale.time.user_time 13.25 ± 20% -50.9% 6.50 ± 41% cpuidle.POLL.usage 27.99 ± 0% +24.0% 34.71 ± 0% time.user_time 1965 ± 0% -19.1% 1590 ± 3% vmstat.system.cs 37.50 ± 4% -24.0% 28.50 ± 9% sched_debug.cfs_rq[0]:/.nr_spread_over 144.50 ± 6% -17.8% 118.75 ± 9% sched_debug.cfs_rq[1]:/.load_avg 145.50 ± 6% -18.6% 118.50 ± 9% sched_debug.cfs_rq[1]:/.tg_load_avg_contrib lkp-xbm: Sandy Bridge Memory: 2G will-it-scale.per_thread_ops 1.8e+06 ++------------O-O--O--O-O-----O--O---------O-----O-O--O----------+ O O O O O O O O O O O O O 1.75e+06 ++ O | | | 1.7e+06 ++ | 1.65e+06 ++ | | | 1.6e+06 ++ | | | 1.55e+06 ++ | 1.5e+06 ++ | | *..*.. | 1.45e+06 ++ .. .* | *..*.*..*..*..*.*..*..*.* *.*..*..*.*..*..*.*..*. | 1.4e+06 ++---------------------------------------------------------------+ will-it-scale.time.user_time 36 ++---------------------------------------------------------------------+ | O O O | 35 ++ O O O O O O O O O O O O O O O 34 ++ O O O | O O O | 33 ++ O | 32 ++ | | | 31 ++ | 30 ++ | | | 29 ++ *..*.. | 28 ++ .. .* | *..*.. .*..*..*.. .* *.*..*..*..*..*..*..*..*. | 27 ++----*-----------*--*--*----------------------------------------------+ will-it-scale.time.system_time 315 ++--------------------------------------------------------------------+ 314 ++ .*.. .*.*..*.. | *..*. *..*..*. *.. *..*.. .*..*..*..*. .*.. | 313 ++ *.. .. *. *. * | 312 ++ * | | | 311 ++ | 310 ++ | 309 ++ | | O | 308 O+ O O | 307 ++ O O O O O O | | O O O O O O O O O O O O O 306 ++ O O | 305 ++--------------------------------------------------------------------+ time.user_time 36 ++---------------------------------------------------------------------+ | O O O | 35 ++ O O O O O O O O O O O O O O O 34 ++ O O O | O O O | 33 ++ O | 32 ++ | | | 31 ++ | 30 ++ | | | 29 ++ *..*.. | 28 ++ .. .* | *..*.. .*..*..*.. .* *.*..*..*..*..*..*..*..*. | 27 ++----*-----------*--*--*----------------------------------------------+ [*] bisect-good sample [O] bisect-bad sample 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 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, Ying Huang
--- LKP_SERVER: inn LKP_CGI_PORT: 80 LKP_CIFS_PORT: 139 testcase: will-it-scale default-monitors: wait: activate-monitor kmsg: uptime: iostat: vmstat: numa-numastat: numa-vmstat: numa-meminfo: proc-vmstat: proc-stat: interval: 10 meminfo: slabinfo: interrupts: lock_stat: latency_stats: softirqs: bdi_dev_mapping: diskstats: nfsstat: cpuidle: cpufreq-stats: turbostat: pmeter: sched_debug: interval: 60 cpufreq_governor: performance default-watchdogs: oom-killer: watchdog: commit: 0a1802348e8f5301bdb6a5d59b8def2034ac3c3e model: Sandy Bridge memory: 2G nr_cpu: 8 hdd_partitions: swap_partitions: rootfs_partition: category: benchmark perf-profile: freq: 800 will-it-scale: test: pread1 queue: cyclic testbox: lkp-xbm tbox_group: lkp-xbm kconfig: x86_64-rhel enqueue_time: 2015-09-20 07:25:22.950602827 +08:00 id: a12af3d9bf932d8b38ec836fc5337d3f76c8d51b user: lkp compiler: gcc-4.9 head_commit: 0a1802348e8f5301bdb6a5d59b8def2034ac3c3e base_commit: 6ff33f3902c3b1c5d0db6b1e2c70b6d76fba357f branch: linux-devel/devel-hourly-2015092101 kernel: "/pkg/linux/x86_64-rhel/gcc-4.9/0a1802348e8f5301bdb6a5d59b8def2034ac3c3e/vmlinuz-4.3.0-rc1-01427-g0a18023" rootfs: debian-x86_64-2015-02-07.cgz result_root: "/result/will-it-scale/performance-pread1/lkp-xbm/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/0a1802348e8f5301bdb6a5d59b8def2034ac3c3e/0" job_file: "/lkp/scheduled/lkp-xbm/cyclic_will-it-scale-performance-pread1-x86_64-rhel-CYCLIC_HEAD-0a1802348e8f5301bdb6a5d59b8def2034ac3c3e-20150920-60575-12lqfz9-0.yaml" dequeue_time: 2015-09-21 02:42:02.842494013 +08:00 max_uptime: 1500 initrd: "/osimage/debian/debian-x86_64-2015-02-07.cgz" bootloader_append: - root=/dev/ram0 - user=lkp - job=/lkp/scheduled/lkp-xbm/cyclic_will-it-scale-performance-pread1-x86_64-rhel-CYCLIC_HEAD-0a1802348e8f5301bdb6a5d59b8def2034ac3c3e-20150920-60575-12lqfz9-0.yaml - ARCH=x86_64 - kconfig=x86_64-rhel - branch=linux-devel/devel-hourly-2015092101 - commit=0a1802348e8f5301bdb6a5d59b8def2034ac3c3e - BOOT_IMAGE=/pkg/linux/x86_64-rhel/gcc-4.9/0a1802348e8f5301bdb6a5d59b8def2034ac3c3e/vmlinuz-4.3.0-rc1-01427-g0a18023 - max_uptime=1500 - RESULT_ROOT=/result/will-it-scale/performance-pread1/lkp-xbm/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/0a1802348e8f5301bdb6a5d59b8def2034ac3c3e/0 - LKP_SERVER=inn - |2- earlyprintk=ttyS0,115200 systemd.log_level=err debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal rw lkp_initrd: "/lkp/lkp/lkp-x86_64.cgz" modules_initrd: "/pkg/linux/x86_64-rhel/gcc-4.9/0a1802348e8f5301bdb6a5d59b8def2034ac3c3e/modules.cgz" bm_initrd: "/osimage/deps/debian-x86_64-2015-02-07.cgz/lkp.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/run-ipconfig.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/turbostat.cgz,/lkp/benchmarks/turbostat.cgz,/lkp/benchmarks/will-it-scale.cgz" job_state: finished loadavg: 6.83 3.28 1.30 1/120 3682 start_time: '1442774590' end_time: '1442774818' version: "/lkp/lkp/.src-20150921-000722"
echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor ./runtest.py pread1 32 both 1 6 8