FYI, we noticed the below changes on git://internal_merge_and_test_tree revert-e1e56931915cc3fafb4e17d4e1073e24c0a304ce-e1e56931915cc3fafb4e17d4e1073e24c0a304ce commit e1e56931915cc3fafb4e17d4e1073e24c0a304ce ("SUNRPC: Fixup socket wait for memory") ========================================================================================= compiler/cpufreq_governor/disk/filesize/fs2/fs/iterations/kconfig/md/nr_threads/rootfs/sync_method/tbox_group/test_size/testcase: gcc-4.9/performance/3HDD/4M/nfsv4/btrfs/1x/x86_64-rhel/RAID0/64t/debian-x86_64-2015-02-07.cgz/NoSync/ivb44/200G/fsmark commit: v4.4-rc8 e1e56931915cc3fafb4e17d4e1073e24c0a304ce v4.4-rc8 e1e56931915cc3fafb4e17d4e1 ---------------- -------------------------- %stddev %change %stddev \ | \ 1.018e+09 ± 2% -37.3% 6.38e+08 ± 1% fsmark.app_overhead 22.40 ± 14% +71.4% 38.40 ± 0% fsmark.files_per_sec 2287 ± 0% -45.0% 1258 ± 0% fsmark.time.elapsed_time 2287 ± 0% -45.0% 1258 ± 0% fsmark.time.elapsed_time.max 10.75 ± 4% +83.7% 19.75 ± 2% fsmark.time.percent_of_cpu_this_job_got 1.2e+10 ± 2% -74.1% 3.105e+09 ± 0% latency_stats.sum.wait_on_page_bit.__filemap_fdatawait_range.filemap_fdatawait_range.filemap_write_and_wait_range.nfs4_file_fsync.[nfsv4].vfs_fsync_range.vfs_fsync.nfs4_file_flush.[nfsv4].filp_close.__close_fd.SyS_close.entry_SYSCALL_64_fastpath 2319 ± 0% -44.4% 1290 ± 0% uptime.boot 97173 ± 0% -42.3% 56052 ± 0% uptime.idle 8108411 ± 1% +21.1% 9821389 ± 0% meminfo.MemFree 31468 ± 0% +46.7% 46177 ± 0% meminfo.NFS_Unstable 21802 ± 2% -39.3% 13242 ± 2% meminfo.Writeback 2287 ± 0% -45.0% 1258 ± 0% time.elapsed_time 2287 ± 0% -45.0% 1258 ± 0% time.elapsed_time.max 10.75 ± 4% +83.7% 19.75 ± 2% time.percent_of_cpu_this_job_got 1266178 ± 0% -21.0% 1000024 ± 0% softirqs.NET_RX 438856 ± 1% -19.5% 353420 ± 2% softirqs.RCU 380524 ± 0% -19.3% 307256 ± 0% softirqs.SCHED 841106 ± 0% -21.0% 664215 ± 1% softirqs.TIMER 94084 ± 0% +81.3% 170560 ± 0% vmstat.io.bo 8104477 ± 1% +21.0% 9810467 ± 0% vmstat.memory.free 6.00 ± 0% -20.8% 4.75 ± 9% vmstat.procs.b 9383 ± 1% +65.2% 15505 ± 0% vmstat.system.cs 1251 ± 1% +53.4% 1919 ± 0% vmstat.system.in 15732936 ± 3% -15.0% 13365333 ± 1% numa-numastat.node0.numa_foreign 5797897 ± 4% +32.6% 7688554 ± 0% numa-numastat.node0.numa_miss 5798012 ± 4% +32.6% 7688606 ± 0% numa-numastat.node0.other_node 5797908 ± 4% +32.6% 7688549 ± 0% numa-numastat.node1.numa_foreign 15732931 ± 3% -15.0% 13365359 ± 1% numa-numastat.node1.numa_miss 15732913 ± 3% -15.0% 13365296 ± 1% numa-numastat.node1.other_node 1.147e+10 ± 0% -22.6% 8.874e+09 ± 0% cpuidle.C1-IVT.time 1.154e+09 ± 1% -35.6% 7.428e+08 ± 2% cpuidle.C1E-IVT.time 5.187e+08 ± 2% -33.2% 3.465e+08 ± 1% cpuidle.C3-IVT.time 153669 ± 0% +21.9% 187252 ± 1% cpuidle.C3-IVT.usage 9.566e+10 ± 1% -48.0% 4.973e+10 ± 0% cpuidle.C6-IVT.time 3124803 ± 0% -16.7% 2604298 ± 0% cpuidle.C6-IVT.usage 1.013e+08 ± 15% -61.7% 38786807 ± 20% cpuidle.POLL.time 10572 ± 22% -66.8% 3507 ± 1% cpuidle.POLL.usage 9640 ± 2% +9.0% 10507 ± 7% numa-meminfo.node0.KernelStack 3575187 ± 2% +31.9% 4716524 ± 0% numa-meminfo.node0.MemFree 14978 ± 2% +47.5% 22087 ± 0% numa-meminfo.node0.NFS_Unstable 10624 ± 1% -35.9% 6810 ± 3% numa-meminfo.node0.Writeback 8474 ± 1% +15.3% 9767 ± 2% numa-meminfo.node1.Dirty 4534267 ± 1% +12.5% 5103016 ± 1% numa-meminfo.node1.MemFree 16667 ± 0% +46.7% 24444 ± 2% numa-meminfo.node1.NFS_Unstable 11319 ± 2% -40.2% 6768 ± 3% numa-meminfo.node1.Writeback 0.96 ± 1% +33.0% 1.28 ± 0% turbostat.%Busy 29.75 ± 1% +30.3% 38.75 ± 1% turbostat.Avg_MHz 23.58 ± 0% +36.4% 32.17 ± 0% turbostat.CPU%c1 0.80 ± 3% +15.5% 0.93 ± 1% turbostat.CPU%c3 74.66 ± 0% -12.1% 65.62 ± 0% turbostat.CPU%c6 58.59 ± 0% +4.0% 60.94 ± 0% turbostat.CorWatt 11.84 ± 4% -46.8% 6.29 ± 5% turbostat.Pkg%pc2 0.08 ± 11% -83.3% 0.01 ± 34% turbostat.Pkg%pc3 3.77 ± 2% +41.7% 5.33 ± 2% turbostat.Pkg%pc6 88.77 ± 0% +2.3% 90.81 ± 0% turbostat.PkgWatt 3.48 ± 0% +12.3% 3.91 ± 0% turbostat.RAMWatt 1511 ± 16% +21.5% 1835 ± 8% proc-vmstat.allocstall 11282 ± 3% +47.5% 16646 ± 2% proc-vmstat.kswapd_low_wmark_hit_quickly 2027101 ± 1% +21.1% 2455329 ± 0% proc-vmstat.nr_free_pages 7862 ± 0% +46.6% 11524 ± 0% proc-vmstat.nr_unstable 5456 ± 2% -39.2% 3319 ± 2% proc-vmstat.nr_writeback 4776414 ± 0% -44.6% 2643782 ± 0% proc-vmstat.pgfault 253751 ± 16% +21.2% 307466 ± 8% proc-vmstat.pgscan_direct_dma32 5618934 ± 16% +21.2% 6810557 ± 8% proc-vmstat.pgscan_direct_normal 252127 ± 16% +21.8% 306978 ± 8% proc-vmstat.pgsteal_direct_dma32 5584293 ± 16% +21.8% 6800262 ± 8% proc-vmstat.pgsteal_direct_normal 867072 ± 0% +50.5% 1304864 ± 0% proc-vmstat.slabs_scanned 21817 ± 0% -21.8% 17066 ± 0% proc-vmstat.workingset_refault 8282 ± 5% +10.1% 9122 ± 2% slabinfo.anon_vma.active_objs 8282 ± 5% +10.1% 9122 ± 2% slabinfo.anon_vma.num_objs 17264 ± 0% -10.4% 15468 ± 1% slabinfo.btrfs_extent_buffer.active_objs 17374 ± 0% -10.5% 15551 ± 1% slabinfo.btrfs_extent_buffer.num_objs 6257 ± 1% -16.3% 5234 ± 0% slabinfo.kmalloc-1024.active_objs 6467 ± 1% -16.7% 5385 ± 0% slabinfo.kmalloc-1024.num_objs 52661 ± 0% +18.8% 62552 ± 0% slabinfo.kmalloc-128.active_objs 880.75 ± 0% +16.7% 1028 ± 0% slabinfo.kmalloc-128.active_slabs 56414 ± 0% +16.7% 65812 ± 0% slabinfo.kmalloc-128.num_objs 880.75 ± 0% +16.7% 1028 ± 0% slabinfo.kmalloc-128.num_slabs 10336 ± 10% +15.9% 11978 ± 2% slabinfo.kmalloc-256.active_objs 24011 ± 1% -15.1% 20393 ± 1% slabinfo.kmalloc-512.active_objs 24466 ± 1% -15.1% 20768 ± 1% slabinfo.kmalloc-512.num_objs 28192 ± 1% +14.7% 32329 ± 2% slabinfo.kmalloc-96.active_objs 684.00 ± 1% +14.0% 779.50 ± 1% slabinfo.kmalloc-96.active_slabs 28758 ± 1% +13.9% 32765 ± 1% slabinfo.kmalloc-96.num_objs 684.00 ± 1% +14.0% 779.50 ± 1% slabinfo.kmalloc-96.num_slabs 893799 ± 2% +31.9% 1179152 ± 0% numa-vmstat.node0.nr_free_pages 602.00 ± 2% +9.0% 656.25 ± 7% numa-vmstat.node0.nr_kernel_stack 3742 ± 2% +48.2% 5545 ± 1% numa-vmstat.node0.nr_unstable 2656 ± 0% -36.8% 1679 ± 3% numa-vmstat.node0.nr_writeback 7234228 ± 5% -22.1% 5636260 ± 3% numa-vmstat.node0.numa_foreign 25126071 ± 0% -10.1% 22591402 ± 0% numa-vmstat.node0.numa_hit 25076317 ± 0% -10.2% 22526610 ± 0% numa-vmstat.node0.numa_local 2332523 ± 4% +31.5% 3066132 ± 1% numa-vmstat.node0.numa_miss 2382277 ± 4% +31.4% 3130924 ± 1% numa-vmstat.node0.numa_other 14530 ± 0% -22.6% 11245 ± 0% numa-vmstat.node0.workingset_refault 2117 ± 1% +15.9% 2453 ± 1% numa-vmstat.node1.nr_dirty 1133575 ± 1% +12.5% 1275767 ± 1% numa-vmstat.node1.nr_free_pages 4163 ± 0% +47.6% 6146 ± 1% numa-vmstat.node1.nr_unstable 2829 ± 2% -40.2% 1691 ± 3% numa-vmstat.node1.nr_writeback 2332530 ± 4% +31.5% 3066140 ± 1% numa-vmstat.node1.numa_foreign 7234236 ± 5% -22.1% 5636265 ± 3% numa-vmstat.node1.numa_miss 7263978 ± 5% -22.2% 5651010 ± 3% numa-vmstat.node1.numa_other 7284 ± 2% -20.0% 5825 ± 1% numa-vmstat.node1.workingset_refault fsmark.files_per_sec 40 ++---------------------------------------------------------------------+ O O O O O O O O O O O O O O O O O O O O O O O 35 ++ | 30 ++ | | | 25 ++ * *.. *.. .*..*..*..*...*..*.. * *.. * *..| |..: : .. .. ..: : ..: : | 20 *+ : : * * * : : *..* : : * | : : : : : : | 15 ++ : : : : : : | 10 ++ : : : : : : | | : : : : : : | 5 ++ : : : : : : | | : : : | 0 ++----*-----------------------------------------*----------------*-----+ fsmark.app_overhead 1.2e+09 ++----------------------------------------------------------------+ | .*.. | 1e+09 *+.* *.. *. *.. .*.. .*..* *.. .*..* *..| | : : *.. .. *..*. *. : : *. : : * | : : * : : : : | 8e+08 ++ : : : : : : | O : O : O : O : O O: : O 6e+08 ++ O: :O O O O O O O O O O: :O O : O :O | | : : O : : : : | 4e+08 ++ : : : : : : | | : : : : : : | | : : : : : : | 2e+08 ++ :: :: :: | | : : : | 0 ++----*--------------------------------------*--------------*-----+ fsmark.time.percent_of_cpu_this_job_got 25 ++---------------------------------------------------------------------+ | | O O O O | 20 ++ O O O O O O O O O O O O O O O O O O O | | | | 15 ++ | | | 10 *+.* *..*..*..*...*..*..*..*...*..*..*..* *..*..*..* *..* | : : : : : : | | : : : : : : | 5 ++ : : : : : : | | : : : : : : | | :: :: : : | 0 ++----*-----------------------------------------*----------------*-----+ fsmark.time.elapsed_time 2500 ++-------------------------------------------------------------------+ *..* *...*..*..*..*..*..*..*...*.. .*..* *..*..*...* *..* | : : *. : : : : | 2000 ++ : : : : : : | | : : : : : : | | : : : : : : | 1500 ++ : : : : : : | O O: O :O O O O O O O O O O O O: O :O O O O: O :O O 1000 ++ : : : : : : | | : : : : : : | | : : : : : : | 500 ++ : : : : : : | | : : : | | : : : | 0 ++----*----------------------------------------*---------------*-----+ fsmark.time.elapsed_time.max 2500 ++-------------------------------------------------------------------+ *..* *...*..*..*..*..*..*..*...*.. .*..* *..*..*...* *..* | : : *. : : : : | 2000 ++ : : : : : : | | : : : : : : | | : : : : : : | 1500 ++ : : : : : : | O O: O :O O O O O O O O O O O O: O :O O O O: O :O O 1000 ++ : : : : : : | | : : : : : : | | : : : : : : | 500 ++ : : : : : : | | : : : | | : : : | 0 ++----*----------------------------------------*---------------*-----+ [*] 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