Hi Oleg,
we noticed the below changes on
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit 8ad8e9d3fd64f101eed6652964670672d699e563 ("uprobes/x86: Introduce
uprobe_xol_ops and arch_uprobe->ops")
Test case: lkp-snb01/aim7/signal_test
34e7317d6ae8f61 8ad8e9d3fd64f101eed665296
--------------- -------------------------
230689 ~ 0% -7.5% 213485 ~ 0% TOTAL aim7.2000.jobs-per-min
0.51 ~30% -45.7% 0.28 ~10% TOTAL turbostat.%c1
430 ~17% +27.8% 549 ~15% TOTAL vmstat.procs.r
0.83 ~14% +38.1% 1.15 ~12% TOTAL
perf-profile.cpu-cycles.copy_pte_range.copy_page_range.copy_process.do_fork.sys_clone
106076 ~ 4% +22.4% 129816 ~ 3% TOTAL softirqs.RCU
12117 ~ 6% -9.9% 10914 ~ 6% TOTAL
slabinfo.kmalloc-256.active_objs
32163 ~17% +39.4% 44824 ~12% TOTAL
time.voluntary_context_switches
276487 ~ 1% +16.5% 322091 ~ 1% TOTAL
time.involuntary_context_switches
83.14 ~ 0% +13.3% 94.21 ~ 0% TOTAL time.user_time
108800 ~ 2% +9.4% 119014 ~ 3% TOTAL time.minor_page_faults
1255 ~ 0% +9.9% 1379 ~ 0% TOTAL time.system_time
6774 ~ 1% +8.8% 7373 ~ 1% TOTAL vmstat.system.cs
52.15 ~ 0% +8.0% 56.34 ~ 0% TOTAL time.elapsed_time
25185 ~ 0% +2.4% 25784 ~ 0% TOTAL vmstat.system.in
79.23 ~ 0% +2.0% 80.80 ~ 0% TOTAL turbostat.%c0
2567 ~ 0% +1.9% 2615 ~ 0% TOTAL
time.percent_of_cpu_this_job_got
112 ~ 0% +1.3% 113 ~ 0% TOTAL turbostat.Cor_W
138 ~ 0% +1.0% 139 ~ 0% TOTAL turbostat.Pkg_W
Legend:
~XX% - stddev percent
[+-]XX% - change percent
Thanks,
Jet
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/cpu10/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu11/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu12/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu13/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu14/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu15/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu16/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu17/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu18/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu19/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu20/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu21/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu22/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu23/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu24/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu25/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu26/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu27/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu28/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu29/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu30/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu31/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu4/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu5/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu6/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu7/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu8/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu9/cpufreq/scaling_governor
