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X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Oct 2023 14:55:16.7254 (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: muWC/rCpXI28AAoEYvTk2wH7yvpNbC4qFSGDHdeCHoiNt/U4oPlz05UqcEaOrt1HAH/+JQ/wj1pC/fsSBUrDyA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR11MB7969 X-OriginatorOrg: intel.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, kernel test robot noticed a -3.4% regression of hackbench.throughput on: commit: b01db23d5923a35023540edc4f0c5f019e11ac7d ("sched/eevdf: Fix pick_eevdf()") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master testcase: hackbench test machine: 128 threads 2 sockets Intel(R) Xeon(R) Gold 6338 CPU @ 2.00GHz (Ice Lake) with 256G memory parameters: nr_threads: 50% iterations: 4 mode: process ipc: pipe cpufreq_governor: performance 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/202310182229.78d950b2-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/20231018/202310182229.78d950b2-oliver.sang@intel.com ========================================================================================= compiler/cpufreq_governor/ipc/iterations/kconfig/mode/nr_threads/rootfs/tbox_group/testcase: gcc-12/performance/pipe/4/x86_64-rhel-8.3/process/50%/debian-11.1-x86_64-20220510.cgz/lkp-icl-2sp2/hackbench commit: 8dafa9d0eb ("sched/eevdf: Fix min_deadline heap integrity") b01db23d59 ("sched/eevdf: Fix pick_eevdf()") 8dafa9d0eb1a1550 b01db23d5923a35023540edc4f0 ---------------- --------------------------- %stddev %change %stddev \ | \ 4.958e+08 ± 4% +11.8% 5.544e+08 ± 9% cpuidle..time 47.00 ± 54% -74.1% 12.18 ± 87% turbostat.IPC 2127266 +10.3% 2347320 sched_debug.cpu.nr_switches.avg 36.94 ± 5% +10.7% 40.89 ± 3% sched_debug.cpu.nr_uninterruptible.stddev 8760010 +9.9% 9630735 vmstat.system.cs 1087178 +2.8% 1117923 vmstat.system.in 8690 ± 4% +108.2% 18091 ± 33% meminfo.Active 8034 ± 4% +117.0% 17435 ± 35% meminfo.Active(anon) 695914 ± 4% -10.0% 626568 ± 3% meminfo.Mapped 559.67 ± 71% +741.2% 4708 ± 11% perf-c2c.DRAM.remote 3119 ± 76% +972.2% 33448 ± 7% perf-c2c.HITM.local 236.00 ± 86% +240.7% 804.17 ± 19% perf-c2c.HITM.remote 3355 ± 76% +920.8% 34252 ± 7% perf-c2c.HITM.total 1052797 -3.4% 1016737 hackbench.throughput 1011957 -3.2% 979124 hackbench.throughput_avg 1052797 -3.4% 1016737 hackbench.throughput_best 917410 -3.0% 890080 hackbench.throughput_worst 99425414 +14.5% 1.138e+08 hackbench.time.involuntary_context_switches 6523 +3.2% 6728 hackbench.time.system_time 752.72 +2.6% 772.26 hackbench.time.user_time 4.408e+08 +13.9% 5.021e+08 hackbench.time.voluntary_context_switches 538.27 ± 56% +180.9% 1511 ± 52% numa-vmstat.node0.nr_active_anon 44253 ± 39% +609.8% 314098 ±115% numa-vmstat.node0.nr_inactive_anon 34617 ± 9% +83.5% 63505 ± 54% numa-vmstat.node0.nr_mapped 1543 ± 22% +16311.4% 253377 ±141% numa-vmstat.node0.nr_shmem 538.27 ± 56% +180.9% 1511 ± 52% numa-vmstat.node0.nr_zone_active_anon 44252 ± 39% +609.8% 314096 ±115% numa-vmstat.node0.nr_zone_inactive_anon 138022 ± 9% -32.6% 92993 ± 41% numa-vmstat.node1.nr_mapped 15216 ± 45% -52.7% 7199 ± 84% numa-vmstat.node1.nr_page_table_pages 2553 ± 49% +149.5% 6369 ± 50% numa-meminfo.node0.Active 2225 ± 58% +171.5% 6041 ± 53% numa-meminfo.node0.Active(anon) 177208 ± 38% +610.0% 1258121 ±115% numa-meminfo.node0.Inactive 177010 ± 39% +610.6% 1257927 ±115% numa-meminfo.node0.Inactive(anon) 138899 ± 9% +83.1% 254371 ± 54% numa-meminfo.node0.Mapped 6256 ± 23% +16125.5% 1015094 ±141% numa-meminfo.node0.Shmem 556497 ± 8% -33.2% 371757 ± 40% numa-meminfo.node1.Mapped 60668 ± 45% -52.7% 28716 ± 83% numa-meminfo.node1.PageTables 267338 ± 13% -23.1% 205462 ± 21% numa-meminfo.node1.Slab 2008 ± 5% +117.7% 4372 ± 35% proc-vmstat.nr_active_anon 173611 ± 5% -9.6% 157026 ± 3% proc-vmstat.nr_mapped 2008 ± 5% +117.7% 4372 ± 35% proc-vmstat.nr_zone_active_anon 1.243e+08 -1.8% 1.221e+08 proc-vmstat.numa_hit 1.242e+08 -1.8% 1.22e+08 proc-vmstat.numa_local 427.50 ± 26% +428.8% 2260 ± 15% proc-vmstat.pgactivate 1.244e+08 -1.8% 1.222e+08 proc-vmstat.pgalloc_normal 1.227e+08 -2.0% 1.202e+08 proc-vmstat.pgfree 550400 +3.7% 571008 proc-vmstat.unevictable_pgs_scanned 7.27 ± 68% -4.8 2.42 ±161% perf-profile.calltrace.cycles-pp.seq_read_iter.seq_read.vfs_read.ksys_read.do_syscall_64 7.27 ± 68% -4.8 2.42 ±161% perf-profile.calltrace.cycles-pp.seq_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe 6.65 ± 77% -4.2 2.42 ±161% perf-profile.calltrace.cycles-pp.proc_single_show.seq_read_iter.seq_read.vfs_read.ksys_read 6.65 ± 77% -4.2 2.42 ±161% perf-profile.calltrace.cycles-pp.proc_pid_status.proc_single_show.seq_read_iter.seq_read.vfs_read 5.03 ±100% -4.1 0.93 ±223% perf-profile.calltrace.cycles-pp.number.vsnprintf.seq_printf.show_interrupts.seq_read_iter 2.08 ±223% +11.2 13.29 ± 53% perf-profile.calltrace.cycles-pp.perf_session__deliver_event.__ordered_events__flush.perf_session__process_user_event.reader__read_event.perf_session__process_events 2.78 ±223% +12.6 15.36 ± 54% perf-profile.calltrace.cycles-pp.perf_session__process_user_event.reader__read_event.perf_session__process_events.record__finish_output.__cmd_record 2.08 ±223% +13.3 15.36 ± 54% perf-profile.calltrace.cycles-pp.__ordered_events__flush.perf_session__process_user_event.reader__read_event.perf_session__process_events.record__finish_output 7.27 ± 68% -4.8 2.42 ±161% perf-profile.children.cycles-pp.seq_read 6.01 ± 75% -4.4 1.59 ±144% perf-profile.children.cycles-pp.number 6.65 ± 77% -4.2 2.42 ±161% perf-profile.children.cycles-pp.proc_single_show 6.65 ± 77% -4.2 2.42 ±161% perf-profile.children.cycles-pp.proc_pid_status 2.08 ±223% +11.2 13.29 ± 53% perf-profile.children.cycles-pp.perf_session__deliver_event 2.78 ±223% +12.6 15.36 ± 54% perf-profile.children.cycles-pp.perf_session__process_user_event 2.78 ±223% +12.6 15.36 ± 54% perf-profile.children.cycles-pp.__ordered_events__flush 6.01 ± 75% -4.4 1.59 ±144% perf-profile.self.cycles-pp.number 0.39 +0.0 0.42 perf-stat.i.branch-miss-rate% 1.983e+08 +5.2% 2.085e+08 perf-stat.i.branch-misses 9200253 +10.1% 10127041 perf-stat.i.context-switches 554899 +5.3% 584042 perf-stat.i.cpu-migrations 0.04 +0.0 0.05 perf-stat.i.dTLB-load-miss-rate% 33430860 +10.3% 36871351 perf-stat.i.dTLB-load-misses 0.85 -0.9% 0.84 perf-stat.i.ipc 9.94 ± 16% -26.2% 7.34 ± 24% perf-stat.i.major-faults 4603385 ± 3% +6.8% 4916292 ± 3% perf-stat.i.node-stores 0.39 +0.0 0.41 perf-stat.overall.branch-miss-rate% 0.04 +0.0 0.05 perf-stat.overall.dTLB-load-miss-rate% 1.947e+08 +5.3% 2.051e+08 perf-stat.ps.branch-misses 9028654 +10.2% 9953106 perf-stat.ps.context-switches 543976 +5.4% 573599 perf-stat.ps.cpu-migrations 32914153 +10.4% 36349710 perf-stat.ps.dTLB-load-misses 4512147 ± 3% +7.0% 4827523 ± 3% perf-stat.ps.node-stores 1.588e+13 +3.3% 1.64e+13 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