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X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Aug 2023 13:24:49.1051 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 0rtynvuhD2A9N4MuYclDW9bTdMU9v/5c+IQKu2q9zGBOM5nYS0YwIIt3rlreorMrPgNK+7Df3Z7Ix7oCdNPVfA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA2PR11MB4812 X-OriginatorOrg: intel.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, kernel test robot noticed a -34.8% regression of phoronix-test-suite.blogbench.Write.final_score on: commit: e0c2ff903c320d3fd3c2c604dc401b3b7c0a1d13 ("sched/fair: Remove sched_feat(START_DEBIT)") https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git sched/eevdf testcase: phoronix-test-suite test machine: 96 threads 2 sockets Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz (Cascade Lake) with 512G memory parameters: test: blogbench-1.1.0 option_a: Write cpufreq_governor: performance ( previously, we reported "[tip:sched/eevdf] [sched/fair] e0c2ff903c: pft.faults_per_sec_per_cpu 7.0% improvement" on https://lore.kernel.org/all/202308091624.d97ae058-oliver.sang@intel.com/ since now we found a regression, so report again FYI ) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202308101628.7af4631a-oliver.sang@intel.com Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20230810/202308101628.7af4631a-oliver.sang@intel.com ========================================================================================= compiler/cpufreq_governor/kconfig/option_a/rootfs/tbox_group/test/testcase: gcc-12/performance/x86_64-rhel-8.3/Write/debian-x86_64-phoronix/lkp-csl-2sp7/blogbench-1.1.0/phoronix-test-suite commit: af4cf40470 ("sched/fair: Add cfs_rq::avg_vruntime") e0c2ff903c ("sched/fair: Remove sched_feat(START_DEBIT)") af4cf40470c22efa e0c2ff903c320d3fd3c2c604dc4 ---------------- --------------------------- %stddev %change %stddev \ | \ 13.43 ± 6% +1.7 15.15 ± 5% mpstat.cpu.all.idle% 4.516e+09 ± 7% +13.6% 5.129e+09 ± 6% cpuidle..time 5386162 ± 6% +15.1% 6199901 ± 5% cpuidle..usage 5829408 ± 7% -8.7% 5320418 ± 4% numa-numastat.node0.local_node 5839930 ± 7% -8.7% 5333078 ± 4% numa-numastat.node0.numa_hit 6025065 ± 5% -12.9% 5245696 ± 7% numa-numastat.node1.local_node 57086 -28.2% 40989 vmstat.io.bo 11120354 -21.6% 8721798 vmstat.memory.cache 18750 +12.1% 21014 vmstat.system.cs 215070 ± 25% +29.4% 278379 ± 23% numa-meminfo.node1.AnonPages.max 5507703 ± 13% -31.6% 3766183 ± 23% numa-meminfo.node1.FilePages 2118171 ± 13% -26.7% 1551936 ± 25% numa-meminfo.node1.Inactive 6824965 ± 12% -26.7% 5005740 ± 18% numa-meminfo.node1.MemUsed 4960 -34.8% 3235 ± 2% phoronix-test-suite.blogbench.Write.final_score 35120853 -29.4% 24804986 phoronix-test-suite.time.file_system_outputs 8058 -1.9% 7908 phoronix-test-suite.time.percent_of_cpu_this_job_got 26517 -1.2% 26196 phoronix-test-suite.time.system_time 1445969 +10.6% 1599011 phoronix-test-suite.time.voluntary_context_switches 600079 ± 3% +26.4% 758665 ± 3% turbostat.C1E 0.75 ± 3% +0.1 0.84 ± 4% turbostat.C1E% 4372028 ± 7% +14.1% 4987180 ± 7% turbostat.C6 13.09 ± 6% +1.6 14.72 ± 6% turbostat.C6% 11.39 ± 5% +10.4% 12.57 ± 4% turbostat.CPU%c1 2330913 ± 13% -23.5% 1782895 ± 14% numa-vmstat.node0.nr_dirtied 2256547 ± 13% -23.8% 1719197 ± 14% numa-vmstat.node0.nr_written 5840154 ± 7% -8.7% 5333324 ± 4% numa-vmstat.node0.numa_hit 5829632 ± 7% -8.7% 5320664 ± 4% numa-vmstat.node0.numa_local 2287685 ± 11% -33.8% 1514622 ± 20% numa-vmstat.node1.nr_dirtied 1376658 ± 13% -31.6% 941500 ± 23% numa-vmstat.node1.nr_file_pages 127.17 ± 18% -52.4% 60.50 ± 31% numa-vmstat.node1.nr_writeback 2215841 ± 12% -34.1% 1460272 ± 20% numa-vmstat.node1.nr_written 6025232 ± 5% -12.9% 5245703 ± 7% numa-vmstat.node1.numa_local 74.24 ± 8% -38.1% 45.97 ± 11% sched_debug.cfs_rq:/.load_avg.avg 3167 ± 14% -78.6% 676.56 ± 45% sched_debug.cfs_rq:/.load_avg.max 339.56 ± 15% -74.2% 87.77 ± 38% sched_debug.cfs_rq:/.load_avg.stddev 1829 ± 6% -12.7% 1597 ± 9% sched_debug.cfs_rq:/.runnable_avg.max 1490 ± 7% -13.5% 1289 ± 7% sched_debug.cfs_rq:/.util_avg.max 1495 ± 7% -13.3% 1296 ± 8% sched_debug.cfs_rq:/.util_est_enqueued.max 33772 +15.4% 38971 sched_debug.cpu.nr_switches.avg 117253 ± 10% +106.6% 242187 ± 13% sched_debug.cpu.nr_switches.max 11889 ± 9% +96.8% 23399 ± 12% sched_debug.cpu.nr_switches.stddev 58611259 -50.0% 29305629 sched_debug.sysctl_sched.sysctl_sched_features 6885022 ± 2% -25.3% 5139844 ± 2% meminfo.Active 6735239 ± 2% -25.9% 4988483 ± 2% meminfo.Active(file) 10388292 -21.3% 8173968 meminfo.Cached 3953695 -11.9% 3483739 meminfo.Inactive 2793179 -16.8% 2323187 meminfo.Inactive(file) 716630 -21.7% 561030 meminfo.KReclaimable 12938216 -18.5% 10538792 meminfo.Memused 716630 -21.7% 561030 meminfo.SReclaimable 462556 -10.4% 414369 meminfo.SUnreclaim 1179187 -17.3% 975399 meminfo.Slab 13543613 -19.3% 10926031 meminfo.max_used_kB 1682930 ± 2% -25.9% 1246741 ± 2% proc-vmstat.nr_active_file 4618598 -28.6% 3297498 ± 2% proc-vmstat.nr_dirtied 115523 ± 2% -4.3% 110605 proc-vmstat.nr_dirty 2596313 -21.3% 2043401 proc-vmstat.nr_file_pages 698013 -16.8% 580677 proc-vmstat.nr_inactive_file 179075 -21.7% 140220 proc-vmstat.nr_slab_reclaimable 115576 -10.4% 103600 proc-vmstat.nr_slab_unreclaimable 200.00 ± 12% -60.2% 79.67 ± 27% proc-vmstat.nr_writeback 4472388 -28.9% 3179453 ± 2% proc-vmstat.nr_written 1682930 ± 2% -25.9% 1246741 ± 2% proc-vmstat.nr_zone_active_file 698013 -16.8% 580677 proc-vmstat.nr_zone_inactive_file 115652 ± 2% -4.4% 110571 proc-vmstat.nr_zone_write_pending 11888053 -10.8% 10598323 ± 2% proc-vmstat.numa_hit 11861225 -10.9% 10573027 ± 2% proc-vmstat.numa_local 3434596 -28.4% 2460772 proc-vmstat.pgactivate 18752650 -8.2% 17219808 ± 3% proc-vmstat.pgalloc_normal 18252683 -8.4% 16727157 ± 3% proc-vmstat.pgfree 19379562 -27.5% 14053587 ± 2% proc-vmstat.pgpgout 205988 +3.5% 213118 proc-vmstat.pgreuse 97.12 -1.1 96.06 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe 97.08 -1.1 96.02 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe 52.33 -1.0 51.36 perf-profile.calltrace.cycles-pp.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe 52.32 -1.0 51.35 perf-profile.calltrace.cycles-pp.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe 97.12 -1.1 96.06 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe 97.08 -1.1 96.02 perf-profile.children.cycles-pp.do_syscall_64 85.21 -1.0 84.18 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath 85.58 -1.0 84.56 perf-profile.children.cycles-pp._raw_spin_lock 52.33 -1.0 51.36 perf-profile.children.cycles-pp.__x64_sys_openat 52.32 -1.0 51.35 perf-profile.children.cycles-pp.do_sys_openat2 0.64 ± 2% +0.0 0.68 ± 2% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt 0.28 ± 5% +0.0 0.32 ± 5% perf-profile.children.cycles-pp.__irq_exit_rcu 0.02 ±141% +0.1 0.07 ± 15% perf-profile.children.cycles-pp.__x64_sys_rename 0.08 ± 29% +0.1 0.14 ± 19% perf-profile.children.cycles-pp.process_one_work 0.01 ±223% +0.1 0.07 ± 15% perf-profile.children.cycles-pp.do_renameat2 0.08 ± 29% +0.1 0.15 ± 20% perf-profile.children.cycles-pp.worker_thread 0.03 ±101% +0.1 0.10 ± 21% perf-profile.children.cycles-pp.__extent_writepage 0.03 ±103% +0.1 0.11 ± 20% perf-profile.children.cycles-pp.do_writepages 0.03 ±103% +0.1 0.11 ± 20% perf-profile.children.cycles-pp.extent_writepages 0.03 ±103% +0.1 0.11 ± 20% perf-profile.children.cycles-pp.extent_write_cache_pages 84.73 -1.0 83.69 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath 5.487e+09 -2.2% 5.364e+09 perf-stat.i.branch-instructions 0.73 ± 8% +0.2 0.92 ± 12% perf-stat.i.branch-miss-rate% 18867 +12.0% 21136 perf-stat.i.context-switches 2.307e+11 -2.0% 2.261e+11 perf-stat.i.cpu-cycles 1352 ± 2% +3.5% 1399 perf-stat.i.cpu-migrations 4638095 ± 27% -38.2% 2865514 ± 23% perf-stat.i.dTLB-load-misses 6.107e+09 -2.3% 5.965e+09 perf-stat.i.dTLB-loads 2.391e+10 -2.3% 2.335e+10 perf-stat.i.instructions 0.17 -7.8% 0.16 ± 2% perf-stat.i.ipc 0.62 ± 2% +14.5% 0.71 ± 6% perf-stat.i.major-faults 2.40 -2.0% 2.35 perf-stat.i.metric.GHz 139.98 -2.3% 136.76 perf-stat.i.metric.M/sec 66.90 -1.8 65.11 perf-stat.i.node-load-miss-rate% 65029001 -5.5% 61464545 ± 3% perf-stat.i.node-load-misses 0.08 ± 27% -0.0 0.05 ± 24% perf-stat.overall.dTLB-load-miss-rate% 67.28 -2.3 64.93 perf-stat.overall.node-load-miss-rate% 5.474e+09 -2.2% 5.352e+09 perf-stat.ps.branch-instructions 18821 +12.1% 21105 perf-stat.ps.context-switches 2.301e+11 -2.0% 2.256e+11 perf-stat.ps.cpu-cycles 1349 ± 2% +3.6% 1398 perf-stat.ps.cpu-migrations 4630176 ± 27% -38.2% 2859589 ± 23% perf-stat.ps.dTLB-load-misses 6.092e+09 -2.3% 5.952e+09 perf-stat.ps.dTLB-loads 2.385e+10 -2.3% 2.33e+10 perf-stat.ps.instructions 0.61 ± 2% +14.6% 0.70 ± 6% perf-stat.ps.major-faults 64859061 -5.5% 61314167 ± 3% perf-stat.ps.node-load-misses 8.031e+12 -1.4% 7.921e+12 perf-stat.total.instructions 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. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki