Greeting, FYI, we noticed a 87.1% improvement of stress-ng.numa.ops_per_sec due to commit: commit: 31733463372e8d88ea54bfa1e35178aad9b2ffd2 ("mm: lru_cache_disable: use synchronize_rcu_expedited") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master in testcase: stress-ng on test machine: 96 threads 2 sockets Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 512G memory with following parameters: nr_threads: 10% disk: 1HDD testtime: 60s fs: ext4 class: os test: numa cpufreq_governor: performance ucode: 0x500320a Details are as below: --------------------------------------------------------------------------------------------------> To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests sudo bin/lkp install job.yaml # job file is attached in this email bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run sudo bin/lkp run generated-yaml-file # if come across any failure that blocks the test, # please remove ~/.lkp and /lkp dir to run from a clean state. ========================================================================================= class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime/ucode: os/gcc-11/performance/1HDD/ext4/x86_64-rhel-8.3/10%/debian-11.1-x86_64-20220510.cgz/lkp-csl-2sp7/numa/stress-ng/60s/0x500320a commit: 042999388e ("mm/page_isolation.c: fix one kernel-doc comment") 3173346337 ("mm: lru_cache_disable: use synchronize_rcu_expedited") 042999388ef3dba4 31733463372e8d88ea54bfa1e35 ---------------- --------------------------- %stddev %change %stddev \ | \ 179.60 +86.5% 335.00 stress-ng.numa.ops 2.98 +87.1% 5.57 stress-ng.numa.ops_per_sec 652.20 ± 6% +1304.1% 9157 ± 2% stress-ng.time.involuntary_context_switches 451.80 +89.5% 856.33 stress-ng.time.percent_of_cpu_this_job_got 281.38 +88.8% 531.30 stress-ng.time.system_time 60474 ± 33% -28.7% 43133 ± 11% sched_debug.cfs_rq:/.min_vruntime.max 94.47 -4.1% 90.55 iostat.cpu.idle 5.38 +72.6% 9.29 iostat.cpu.system 4.57 +4.1 8.69 mpstat.cpu.all.sys% 0.11 ± 2% +0.0 0.12 mpstat.cpu.all.usr% 4.20 ± 9% +90.5% 8.00 vmstat.procs.r 2265 +19.3% 2703 ± 6% vmstat.system.cs 9129 ± 7% +25.5% 11453 ± 4% meminfo.Active 6364 ± 10% +35.5% 8626 ± 5% meminfo.Active(anon) 10326 ± 8% +27.8% 13192 ± 4% meminfo.Shmem 3024 ± 18% +25.6% 3799 ± 8% numa-meminfo.node0.PageTables 5788 ± 18% +37.8% 7974 ± 7% numa-meminfo.node1.Active 5018 ± 14% +44.5% 7252 ± 6% numa-meminfo.node1.Active(anon) 2428 ± 24% -31.6% 1662 ± 20% numa-meminfo.node1.PageTables 166.80 +68.8% 281.50 turbostat.Avg_MHz 6.35 +3.8 10.18 turbostat.Busy% 2634 ± 2% +5.2% 2771 turbostat.Bzy_MHz 170.35 ± 2% +18.1% 201.11 turbostat.PkgWatt 445370 ± 52% +108.5% 928743 ± 9% numa-numastat.node0.local_node 974639 ± 2% +77.2% 1727067 numa-numastat.node0.numa_hit 529268 ± 43% +50.8% 797873 ± 12% numa-numastat.node0.other_node 1073228 +67.2% 1794085 numa-numastat.node1.numa_hit 386489 ± 63% +121.4% 855707 ± 11% numa-numastat.node1.other_node 1028 ± 9% +91.5% 1970 ± 3% numa-vmstat.node0.nr_isolated_anon 755.20 ± 18% +25.7% 949.33 ± 8% numa-vmstat.node0.nr_page_table_pages 974681 ± 2% +77.2% 1727120 numa-vmstat.node0.numa_hit 445412 ± 52% +108.5% 928796 ± 9% numa-vmstat.node0.numa_local 529268 ± 43% +50.7% 797872 ± 12% numa-vmstat.node0.numa_other 1254 ± 14% +44.5% 1812 ± 6% numa-vmstat.node1.nr_active_anon 1057 ± 4% +86.4% 1971 ± 5% numa-vmstat.node1.nr_isolated_anon 607.00 ± 24% -31.6% 415.17 ± 20% numa-vmstat.node1.nr_page_table_pages 1254 ± 14% +44.5% 1812 ± 6% numa-vmstat.node1.nr_zone_active_anon 1073132 +67.2% 1794136 numa-vmstat.node1.numa_hit 386489 ± 63% +121.4% 855707 ± 11% numa-vmstat.node1.numa_other 1591 ± 10% +35.5% 2156 ± 5% proc-vmstat.nr_active_anon 73969 -2.6% 72069 proc-vmstat.nr_anon_pages 75032 -2.5% 73153 proc-vmstat.nr_inactive_anon 2038 ± 6% +97.1% 4017 proc-vmstat.nr_isolated_anon 17177 +2.0% 17517 proc-vmstat.nr_kernel_stack 8571 +2.4% 8778 proc-vmstat.nr_mapped 2581 ± 8% +27.7% 3297 ± 4% proc-vmstat.nr_shmem 1591 ± 10% +35.5% 2156 ± 5% proc-vmstat.nr_zone_active_anon 75030 -2.5% 73156 proc-vmstat.nr_zone_inactive_anon 2049310 +71.9% 3522921 proc-vmstat.numa_hit 1133558 +64.9% 1868885 proc-vmstat.numa_local 915758 +80.6% 1653580 proc-vmstat.numa_other 6517 ± 7% +23.6% 8052 ± 4% proc-vmstat.pgactivate 2049415 +71.9% 3522570 proc-vmstat.pgalloc_normal 1949776 +75.5% 3420913 proc-vmstat.pgfree 30189 ± 3% +121.4% 66853 ± 2% proc-vmstat.pgmigrate_fail 7.843e+08 +88.2% 1.476e+09 proc-vmstat.pgmigrate_success 1531737 +88.2% 2882131 proc-vmstat.thp_migration_success 279.42 +3.4% 288.88 perf-stat.i.MPKI 8.095e+08 +64.1% 1.329e+09 perf-stat.i.branch-instructions 0.64 ± 6% -0.1 0.51 ± 4% perf-stat.i.branch-miss-rate% 6423111 ± 5% +11.5% 7160369 ± 4% perf-stat.i.branch-misses 8.993e+08 +88.1% 1.692e+09 perf-stat.i.cache-references 1929 ± 3% +23.7% 2387 ± 7% perf-stat.i.context-switches 4.74 ± 2% -4.0% 4.55 perf-stat.i.cpi 1.561e+10 +71.7% 2.68e+10 perf-stat.i.cpu-cycles 109.72 +3.3% 113.37 perf-stat.i.cpu-migrations 8.698e+08 +60.6% 1.397e+09 perf-stat.i.dTLB-loads 81416 ± 12% +61.0% 131085 ± 3% perf-stat.i.dTLB-store-misses 4.185e+08 +59.0% 6.656e+08 perf-stat.i.dTLB-stores 43.10 ± 2% +2.5 45.62 ± 4% perf-stat.i.iTLB-load-miss-rate% 3.733e+09 +62.6% 6.07e+09 perf-stat.i.instructions 3225 ± 2% +65.8% 5348 ± 16% perf-stat.i.instructions-per-iTLB-miss 0.26 -4.9% 0.25 perf-stat.i.ipc 0.16 +71.6% 0.28 perf-stat.i.metric.GHz 31.20 +69.6% 52.94 perf-stat.i.metric.M/sec 63.07 ± 5% +5.8 68.91 ± 3% perf-stat.i.node-load-miss-rate% 76.05 ± 5% +11.4 87.42 ± 3% perf-stat.i.node-store-miss-rate% 258838 ± 15% +122.7% 576526 ± 7% perf-stat.i.node-store-misses 241.08 +15.7% 278.91 perf-stat.overall.MPKI 0.79 ± 5% -0.3 0.54 ± 3% perf-stat.overall.branch-miss-rate% 4.18 +5.6% 4.42 perf-stat.overall.cpi 43.13 ± 2% +2.5 45.62 ± 4% perf-stat.overall.iTLB-load-miss-rate% 3222 ± 3% +65.6% 5336 ± 16% perf-stat.overall.instructions-per-iTLB-miss 0.24 -5.3% 0.23 perf-stat.overall.ipc 71.74 ± 7% +14.4 86.10 ± 5% perf-stat.overall.node-store-miss-rate% 7.965e+08 +64.2% 1.308e+09 perf-stat.ps.branch-instructions 6314888 ± 5% +11.2% 7021169 ± 4% perf-stat.ps.branch-misses 8.854e+08 +88.2% 1.666e+09 perf-stat.ps.cache-references 1899 ± 3% +23.7% 2349 ± 7% perf-stat.ps.context-switches 1.537e+10 +71.7% 2.639e+10 perf-stat.ps.cpu-cycles 108.06 +3.3% 111.66 perf-stat.ps.cpu-migrations 8.559e+08 +60.7% 1.375e+09 perf-stat.ps.dTLB-loads 80121 ± 12% +61.0% 129023 ± 3% perf-stat.ps.dTLB-store-misses 4.119e+08 +59.1% 6.551e+08 perf-stat.ps.dTLB-stores 3.673e+09 +62.7% 5.974e+09 perf-stat.ps.instructions 254887 ± 15% +122.6% 567461 ± 7% perf-stat.ps.node-store-misses 2.355e+11 +62.3% 3.823e+11 perf-stat.total.instructions 40.65 ± 13% -8.6 32.08 ± 14% perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify 3.27 ± 17% -0.9 2.38 ± 6% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle 2.90 ± 15% -0.7 2.15 ± 4% perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call 1.05 ± 25% -0.5 0.52 ± 71% perf-profile.calltrace.cycles-pp.tick_nohz_get_sleep_length.menu_select.cpuidle_idle_call.do_idle.cpu_startup_entry 1.99 ± 14% -0.5 1.51 ± 6% perf-profile.calltrace.cycles-pp.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter 1.98 ± 14% -0.5 1.49 ± 6% perf-profile.calltrace.cycles-pp.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state 0.61 ± 8% +0.1 0.74 ± 8% perf-profile.calltrace.cycles-pp.try_to_migrate.__unmap_and_move.unmap_and_move.migrate_pages.move_pages_and_store_status 0.60 ± 9% +0.1 0.73 ± 8% perf-profile.calltrace.cycles-pp.rmap_walk_anon.try_to_migrate.__unmap_and_move.unmap_and_move.migrate_pages 0.45 ± 51% +0.2 0.63 ± 5% perf-profile.calltrace.cycles-pp.walk_page_range.migrate_to_node.do_migrate_pages.kernel_migrate_pages.__x64_sys_migrate_pages 0.72 ± 12% +0.3 0.97 ± 7% perf-profile.calltrace.cycles-pp.migrate_to_node.do_migrate_pages.kernel_migrate_pages.__x64_sys_migrate_pages.do_syscall_64 1.80 ± 9% +0.4 2.23 ± 7% perf-profile.calltrace.cycles-pp.__x64_sys_migrate_pages.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall.stress_run 1.80 ± 9% +0.4 2.23 ± 7% perf-profile.calltrace.cycles-pp.kernel_migrate_pages.__x64_sys_migrate_pages.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall 1.79 ± 9% +0.4 2.23 ± 7% perf-profile.calltrace.cycles-pp.do_migrate_pages.kernel_migrate_pages.__x64_sys_migrate_pages.do_syscall_64.entry_SYSCALL_64_after_hwframe 53.09 ± 9% +7.4 60.48 ± 6% perf-profile.calltrace.cycles-pp.copy_page.folio_copy.migrate_page.move_to_new_folio.__unmap_and_move 54.07 ± 9% +7.5 61.61 ± 6% perf-profile.calltrace.cycles-pp.folio_copy.migrate_page.move_to_new_folio.__unmap_and_move.unmap_and_move 54.47 ± 9% +7.6 62.12 ± 6% perf-profile.calltrace.cycles-pp.move_to_new_folio.__unmap_and_move.unmap_and_move.migrate_pages.move_pages_and_store_status 54.46 ± 9% +7.7 62.11 ± 6% perf-profile.calltrace.cycles-pp.migrate_page.move_to_new_folio.__unmap_and_move.unmap_and_move.migrate_pages 55.65 ± 9% +7.9 63.55 ± 6% perf-profile.calltrace.cycles-pp.__unmap_and_move.unmap_and_move.migrate_pages.move_pages_and_store_status.do_pages_move 56.85 ± 9% +8.1 64.95 ± 6% perf-profile.calltrace.cycles-pp.migrate_pages.move_pages_and_store_status.do_pages_move.kernel_move_pages.__x64_sys_move_pages 56.84 ± 9% +8.1 64.94 ± 6% perf-profile.calltrace.cycles-pp.unmap_and_move.migrate_pages.move_pages_and_store_status.do_pages_move.kernel_move_pages 56.89 ± 9% +8.1 65.01 ± 6% perf-profile.calltrace.cycles-pp.move_pages_and_store_status.do_pages_move.kernel_move_pages.__x64_sys_move_pages.do_syscall_64 57.18 ± 9% +8.2 65.37 ± 6% perf-profile.calltrace.cycles-pp.__x64_sys_move_pages.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall.stress_run 57.18 ± 9% +8.2 65.37 ± 6% perf-profile.calltrace.cycles-pp.kernel_move_pages.__x64_sys_move_pages.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall 57.17 ± 9% +8.2 65.37 ± 6% perf-profile.calltrace.cycles-pp.do_pages_move.kernel_move_pages.__x64_sys_move_pages.do_syscall_64.entry_SYSCALL_64_after_hwframe 58.98 ± 9% +8.6 67.61 ± 6% perf-profile.calltrace.cycles-pp.syscall.stress_run 58.99 ± 9% +8.6 67.62 ± 6% perf-profile.calltrace.cycles-pp.stress_run 58.98 ± 9% +8.6 67.61 ± 6% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.syscall.stress_run 58.98 ± 9% +8.6 67.61 ± 6% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall.stress_run 40.65 ± 13% -8.6 32.08 ± 14% perf-profile.children.cycles-pp.do_idle 40.65 ± 13% -8.6 32.08 ± 14% perf-profile.children.cycles-pp.secondary_startup_64_no_verify 40.65 ± 13% -8.6 32.08 ± 14% perf-profile.children.cycles-pp.cpu_startup_entry 40.42 ± 14% -8.5 31.95 ± 14% perf-profile.children.cycles-pp.cpuidle_idle_call 38.80 ± 15% -7.8 31.00 ± 15% perf-profile.children.cycles-pp.cpuidle_enter 38.79 ± 15% -7.8 30.99 ± 15% perf-profile.children.cycles-pp.cpuidle_enter_state 5.77 ± 60% -2.6 3.20 ± 9% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt 3.76 ± 15% -0.9 2.86 ± 9% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt 1.46 ± 25% -0.6 0.89 ± 20% perf-profile.children.cycles-pp.menu_select 1.06 ± 25% -0.4 0.67 ± 22% perf-profile.children.cycles-pp.tick_nohz_get_sleep_length 0.98 ± 26% -0.4 0.63 ± 23% perf-profile.children.cycles-pp.tick_nohz_next_event 0.52 ± 13% -0.2 0.33 ± 14% perf-profile.children.cycles-pp.__irq_exit_rcu 0.43 ± 12% -0.2 0.27 ± 18% perf-profile.children.cycles-pp.__softirqentry_text_start 0.23 ± 18% -0.1 0.14 ± 15% perf-profile.children.cycles-pp.lapic_next_deadline 0.24 ± 18% -0.1 0.15 ± 19% perf-profile.children.cycles-pp.rebalance_domains 0.22 ± 21% -0.1 0.14 ± 17% perf-profile.children.cycles-pp.native_irq_return_iret 0.17 ± 14% -0.1 0.10 ± 31% perf-profile.children.cycles-pp.calc_global_load_tick 0.17 ± 14% -0.1 0.10 ± 22% perf-profile.children.cycles-pp.sched_clock_cpu 0.15 ± 17% -0.1 0.08 ± 47% perf-profile.children.cycles-pp.native_sched_clock 0.16 ± 24% -0.1 0.09 ± 29% perf-profile.children.cycles-pp.arch_cpu_idle_enter 0.16 ± 24% -0.1 0.09 ± 29% perf-profile.children.cycles-pp.tsc_verify_tsc_adjust 0.14 ± 13% -0.1 0.08 ± 17% perf-profile.children.cycles-pp.irqtime_account_irq 0.15 ± 14% -0.1 0.09 ± 13% perf-profile.children.cycles-pp.read_tsc 0.09 ± 14% -0.0 0.06 ± 13% perf-profile.children.cycles-pp.update_rq_clock 0.05 ± 50% +0.0 0.08 ± 11% perf-profile.children.cycles-pp.mod_node_page_state 0.11 ± 18% +0.0 0.15 ± 10% perf-profile.children.cycles-pp.__mod_lruvec_page_state 0.07 ± 28% +0.0 0.11 ± 12% perf-profile.children.cycles-pp.folio_isolate_lru 0.05 ± 55% +0.0 0.10 ± 7% perf-profile.children.cycles-pp.page_remove_rmap 0.10 ± 12% +0.1 0.15 ± 11% perf-profile.children.cycles-pp.page_vma_mapped_walk 0.13 ± 19% +0.1 0.18 ± 6% perf-profile.children.cycles-pp.folio_migrate_flags 0.01 ±200% +0.1 0.06 ± 7% perf-profile.children.cycles-pp.page_remove_anon_compound_rmap 0.01 ±200% +0.1 0.07 ± 10% perf-profile.children.cycles-pp.flush_tlb_func 0.12 ± 12% +0.1 0.18 ± 9% perf-profile.children.cycles-pp.set_pmd_migration_entry 0.14 ± 17% +0.1 0.20 ± 11% perf-profile.children.cycles-pp.__mod_node_page_state 0.14 ± 19% +0.1 0.21 ± 11% perf-profile.children.cycles-pp.__mod_lruvec_state 0.22 ± 14% +0.1 0.29 ± 7% perf-profile.children.cycles-pp.__pagevec_lru_add 0.37 ± 5% +0.1 0.44 ± 7% perf-profile.children.cycles-pp.__cond_resched 0.23 ± 14% +0.1 0.30 ± 7% perf-profile.children.cycles-pp.folio_add_lru 0.21 ± 14% +0.1 0.28 ± 6% perf-profile.children.cycles-pp.add_page_for_migration 0.01 ±200% +0.1 0.10 ± 14% perf-profile.children.cycles-pp.asm_sysvec_call_function_single 0.49 ± 6% +0.1 0.58 ± 9% perf-profile.children.cycles-pp.bitmap_bitremap 0.53 ± 13% +0.1 0.63 ± 5% perf-profile.children.cycles-pp.walk_page_range 0.02 ±123% +0.1 0.13 ± 13% perf-profile.children.cycles-pp.smp_call_function_many_cond 0.02 ±123% +0.1 0.13 ± 13% perf-profile.children.cycles-pp.on_each_cpu_cond_mask 0.10 ± 10% +0.1 0.20 ± 10% perf-profile.children.cycles-pp.flush_tlb_mm_range 0.03 ± 82% +0.1 0.14 ± 10% perf-profile.children.cycles-pp.ptep_clear_flush 0.14 ± 16% +0.2 0.30 ± 12% perf-profile.children.cycles-pp.rmap_walk_file 0.26 ± 14% +0.2 0.45 ± 9% perf-profile.children.cycles-pp.try_to_migrate_one 0.72 ± 12% +0.3 0.98 ± 7% perf-profile.children.cycles-pp.migrate_to_node 0.72 ± 7% +0.3 0.98 ± 8% perf-profile.children.cycles-pp.try_to_migrate 1.80 ± 9% +0.4 2.23 ± 7% perf-profile.children.cycles-pp.__x64_sys_migrate_pages 1.80 ± 9% +0.4 2.23 ± 7% perf-profile.children.cycles-pp.kernel_migrate_pages 1.80 ± 9% +0.4 2.23 ± 7% perf-profile.children.cycles-pp.do_migrate_pages 53.23 ± 9% +7.4 60.66 ± 6% perf-profile.children.cycles-pp.copy_page 54.26 ± 9% +7.6 61.83 ± 6% perf-profile.children.cycles-pp.folio_copy 54.48 ± 9% +7.7 62.13 ± 6% perf-profile.children.cycles-pp.migrate_page 54.48 ± 9% +7.7 62.14 ± 6% perf-profile.children.cycles-pp.move_to_new_folio 55.82 ± 9% +8.1 63.89 ± 6% perf-profile.children.cycles-pp.__unmap_and_move 56.89 ± 9% +8.1 65.01 ± 6% perf-profile.children.cycles-pp.move_pages_and_store_status 57.18 ± 9% +8.2 65.37 ± 6% perf-profile.children.cycles-pp.do_pages_move 57.18 ± 9% +8.2 65.37 ± 6% perf-profile.children.cycles-pp.__x64_sys_move_pages 57.18 ± 9% +8.2 65.37 ± 6% perf-profile.children.cycles-pp.kernel_move_pages 57.01 ± 9% +8.3 65.28 ± 6% perf-profile.children.cycles-pp.unmap_and_move 57.03 ± 9% +8.3 65.30 ± 6% perf-profile.children.cycles-pp.migrate_pages 59.14 ± 9% +8.6 67.72 ± 6% perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe 59.14 ± 9% +8.6 67.72 ± 6% perf-profile.children.cycles-pp.do_syscall_64 58.98 ± 9% +8.6 67.61 ± 6% perf-profile.children.cycles-pp.syscall 58.99 ± 9% +8.6 67.62 ± 6% perf-profile.children.cycles-pp.stress_run 0.23 ± 18% -0.1 0.14 ± 15% perf-profile.self.cycles-pp.lapic_next_deadline 0.22 ± 21% -0.1 0.14 ± 17% perf-profile.self.cycles-pp.native_irq_return_iret 0.17 ± 13% -0.1 0.10 ± 31% perf-profile.self.cycles-pp.calc_global_load_tick 0.16 ± 24% -0.1 0.09 ± 29% perf-profile.self.cycles-pp.tsc_verify_tsc_adjust 0.14 ± 16% -0.1 0.08 ± 47% perf-profile.self.cycles-pp.native_sched_clock 0.15 ± 15% -0.1 0.09 ± 14% perf-profile.self.cycles-pp.read_tsc 0.08 ± 20% +0.0 0.12 ± 8% perf-profile.self.cycles-pp.page_vma_mapped_walk 0.10 ± 23% +0.0 0.13 ± 8% perf-profile.self.cycles-pp.folio_migrate_flags 0.05 ± 50% +0.0 0.08 ± 11% perf-profile.self.cycles-pp.mod_node_page_state 0.14 ± 17% +0.1 0.20 ± 11% perf-profile.self.cycles-pp.__mod_node_page_state 0.00 +0.1 0.10 ± 12% perf-profile.self.cycles-pp.smp_call_function_many_cond 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://01.org/lkp