FYI, we noticed the below changes on https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master commit 755d119a6204974b2005a98549a48a75a7f5010b ("genirq: Simplify irq_data_to_desc()") ========================================================================================= tbox_group/testcase/rootfs/kconfig/compiler/cpufreq_governor/test: ivb42/unixbench/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/performance/dhry2reg commit: 123236ccacc933daac3b39c5eb1f0011c70d41d8 755d119a6204974b2005a98549a48a75a7f5010b 123236ccacc933da 755d119a6204974b2005a98549 ---------------- -------------------------- %stddev %change %stddev \ | \ 3332 ± 0% +2.7% 3423 ± 0% unixbench.score 2911 ± 0% -35.2% 1887 ± 31% numa-vmstat.node1.nr_mapped 65282 ± 3% -9.9% 58822 ± 6% numa-meminfo.node1.Active 4566 ± 19% -77.9% 1008 ±173% numa-meminfo.node1.AnonHugePages 224.43 ± 22% +913.2% 2273 ±139% sched_debug.cfs_rq[10]:/.exec_clock 14795 ± 13% +247.1% 51350 ±102% sched_debug.cfs_rq[10]:/.min_vruntime 11.00 ± 52% -81.8% 2.00 ± 93% sched_debug.cfs_rq[10]:/.util_avg 1.00 ± 70% +150.0% 2.50 ± 20% sched_debug.cfs_rq[19]:/.nr_spread_over 3.75 ± 22% -60.0% 1.50 ± 74% sched_debug.cfs_rq[2]:/.nr_spread_over 1803 ±160% +168.0% 4831 ± 47% sched_debug.cfs_rq[32]:/.exec_clock 19131 ±114% +333.1% 82857 ± 60% sched_debug.cfs_rq[32]:/.min_vruntime -9020 ±-336% -734.2% 57208 ± 80% sched_debug.cfs_rq[32]:/.spread0 6.75 ± 91% -90.1% 0.67 ±141% sched_debug.cfs_rq[42]:/.util_avg 360.12 ± 7% +519.9% 2232 ±126% sched_debug.cfs_rq[4]:/.exec_clock 831.25 ± 6% +172.8% 2267 ± 29% sched_debug.cpu#12.ttwu_count 1673 ± 43% -38.5% 1029 ± 30% sched_debug.cpu#13.ttwu_count -1.25 ±-198% -260.0% 2.00 ±154% sched_debug.cpu#16.nr_uninterruptible 1214 ± 11% -47.3% 639.50 ± 24% sched_debug.cpu#16.ttwu_count -3.00 ±-23% -150.0% 1.50 ±137% sched_debug.cpu#19.nr_uninterruptible 1315 ± 10% +81.6% 2388 ± 18% sched_debug.cpu#2.ttwu_count 701.75 ± 68% -73.4% 186.75 ± 17% sched_debug.cpu#21.ttwu_local 432.75 ± 20% +132.1% 1004 ± 34% sched_debug.cpu#27.ttwu_count 4.00 ± 72% -156.2% -2.25 ±-164% sched_debug.cpu#3.nr_uninterruptible 907.50 ± 16% -20.3% 723.25 ± 9% sched_debug.cpu#34.nr_switches 377.50 ± 13% -17.0% 313.50 ± 9% sched_debug.cpu#34.sched_goidle 1886 ±129% -84.2% 299.00 ± 20% sched_debug.cpu#34.ttwu_count 165.00 ± 23% -29.4% 116.50 ± 3% sched_debug.cpu#34.ttwu_local 863.75 ± 32% +230.8% 2857 ± 68% sched_debug.cpu#37.sched_count 364.00 ± 30% +34.3% 488.75 ± 22% sched_debug.cpu#37.sched_goidle 160.00 ± 32% +235.9% 537.50 ± 84% sched_debug.cpu#37.ttwu_local 126.50 ± 4% +16.6% 147.50 ± 5% sched_debug.cpu#42.ttwu_local 751.00 ± 10% +32.0% 991.00 ± 17% sched_debug.cpu#45.nr_switches 754.50 ± 10% +31.8% 994.25 ± 17% sched_debug.cpu#45.sched_count 287.75 ± 11% +51.6% 436.25 ± 22% sched_debug.cpu#45.sched_goidle -1.75 ±-74% -142.9% 0.75 ±110% sched_debug.cpu#5.nr_uninterruptible 4258 ± 27% -41.9% 2473 ± 14% sched_debug.cpu#6.nr_switches 5247 ± 16% -43.5% 2962 ± 13% sched_debug.cpu#6.sched_count 2022 ± 28% -44.8% 1116 ± 15% sched_debug.cpu#6.sched_goidle 0.00 ± 2% -Inf% -4.25 ±-45% sched_debug.cpu#8.nr_uninterruptible ivb42: Ivytown Ivy Bridge-EP Memory: 64G unixbench.score 3440 ++-------------------------------------------------------------------+ | O O O | 3420 O+ O O O O O O O O O | 3400 ++ O O O O | | O O | 3380 ++ | | | 3360 ++ | *.. | 3340 ++ . .*...*...*..* *.. ..*..*...*...*..*...| 3320 ++ *. + .. *. * | + . | 3300 ++ + ..*...*..*...* | | *..*. | 3280 ++-------------------------------------------------------------------+ [*] 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