Re: [PATCH -V3 7/9] mm: tune PCP high automatically
From: kernel test robot
Date: Mon Oct 30 2023 - 22:50:59 EST
Hello,
kernel test robot noticed a 8.4% improvement of will-it-scale.per_process_ops on:
commit: ba6149e96007edcdb01284c1531ebd49b4720f72 ("[PATCH -V3 7/9] mm: tune PCP high automatically")
url: https://github.com/intel-lab-lkp/linux/commits/Huang-Ying/mm-pcp-avoid-to-drain-PCP-when-process-exit/20231017-143633
base: https://git.kernel.org/cgit/linux/kernel/git/gregkh/driver-core.git 36b2d7dd5a8ac95c8c1e69bdc93c4a6e2dc28a23
patch link: https://lore.kernel.org/all/20231016053002.756205-8-ying.huang@xxxxxxxxx/
patch subject: [PATCH -V3 7/9] mm: tune PCP high automatically
testcase: will-it-scale
test machine: 224 threads 4 sockets Intel(R) Xeon(R) Platinum 8380H CPU @ 2.90GHz (Cooper Lake) with 192G memory
parameters:
nr_task: 16
mode: process
test: page_fault2
cpufreq_governor: performance
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20231031/202310311001.edbc5817-oliver.sang@xxxxxxxxx
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase:
gcc-12/performance/x86_64-rhel-8.3/process/16/debian-11.1-x86_64-20220510.cgz/lkp-cpl-4sp2/page_fault2/will-it-scale
commit:
9f9d0b0869 ("mm: add framework for PCP high auto-tuning")
ba6149e960 ("mm: tune PCP high automatically")
9f9d0b08696fb316 ba6149e96007edcdb01284c1531
---------------- ---------------------------
%stddev %change %stddev
\ | \
0.29 +0.0 0.32 mpstat.cpu.all.usr%
1434135 ± 2% +15.8% 1660688 ± 4% numa-meminfo.node0.AnonPages.max
22.97 +2.0% 23.43 turbostat.RAMWatt
213121 ± 5% -19.5% 171478 ± 7% meminfo.DirectMap4k
8031428 +12.0% 8998346 meminfo.Memused
9777522 +14.3% 11178004 meminfo.max_used_kB
4913700 +8.4% 5326025 will-it-scale.16.processes
307105 +8.4% 332876 will-it-scale.per_process_ops
4913700 +8.4% 5326025 will-it-scale.workload
1.488e+09 +8.5% 1.614e+09 proc-vmstat.numa_hit
1.487e+09 +8.4% 1.612e+09 proc-vmstat.numa_local
1.486e+09 +8.3% 1.609e+09 proc-vmstat.pgalloc_normal
1.482e+09 +8.3% 1.604e+09 proc-vmstat.pgfault
1.486e+09 +8.3% 1.609e+09 proc-vmstat.pgfree
2535424 ± 2% +6.2% 2693888 ± 2% proc-vmstat.unevictable_pgs_scanned
0.04 ± 9% +62.2% 0.06 ± 20% perf-sched.wait_and_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_exc_page_fault
85.33 ± 7% +36.1% 116.17 ± 8% perf-sched.wait_and_delay.count.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_exc_page_fault
475.33 ± 3% +24.8% 593.33 ± 4% perf-sched.wait_and_delay.count.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
0.16 ± 17% +449.1% 0.87 ± 39% perf-sched.wait_and_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_exc_page_fault
0.03 ± 10% +94.1% 0.07 ± 26% perf-sched.wait_time.avg.ms.__cond_resched.__alloc_pages.__folio_alloc.vma_alloc_folio.do_cow_fault
0.04 ± 9% +62.2% 0.06 ± 20% perf-sched.wait_time.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_exc_page_fault
0.16 ± 17% +449.1% 0.87 ± 39% perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_exc_page_fault
14.01 +6.0% 14.85 perf-stat.i.MPKI
5.79e+09 +3.6% 6.001e+09 perf-stat.i.branch-instructions
0.20 ± 2% +0.0 0.21 ± 2% perf-stat.i.branch-miss-rate%
12098037 ± 2% +8.5% 13122446 ± 2% perf-stat.i.branch-misses
82.90 +2.1 85.03 perf-stat.i.cache-miss-rate%
4.005e+08 +9.8% 4.399e+08 perf-stat.i.cache-misses
4.83e+08 +7.1% 5.174e+08 perf-stat.i.cache-references
2.29 -3.2% 2.22 perf-stat.i.cpi
164.08 -9.0% 149.33 perf-stat.i.cycles-between-cache-misses
7.091e+09 +4.2% 7.392e+09 perf-stat.i.dTLB-loads
0.97 +0.0 1.01 perf-stat.i.dTLB-store-miss-rate%
40301594 +8.8% 43829422 perf-stat.i.dTLB-store-misses
4.121e+09 +4.4% 4.302e+09 perf-stat.i.dTLB-stores
83.96 +2.6 86.59 perf-stat.i.iTLB-load-miss-rate%
10268085 ± 3% +23.0% 12628681 ± 3% perf-stat.i.iTLB-load-misses
2.861e+10 +3.7% 2.966e+10 perf-stat.i.instructions
2796 ± 3% -15.7% 2356 ± 3% perf-stat.i.instructions-per-iTLB-miss
0.44 +3.3% 0.45 perf-stat.i.ipc
984.67 +9.6% 1078 perf-stat.i.metric.K/sec
78.05 +4.2% 81.29 perf-stat.i.metric.M/sec
4913856 +8.4% 5329060 perf-stat.i.minor-faults
1.356e+08 +10.6% 1.499e+08 perf-stat.i.node-loads
32443508 +7.6% 34908277 perf-stat.i.node-stores
4913858 +8.4% 5329062 perf-stat.i.page-faults
14.00 +6.0% 14.83 perf-stat.overall.MPKI
0.21 ± 2% +0.0 0.22 ± 2% perf-stat.overall.branch-miss-rate%
82.92 +2.1 85.02 perf-stat.overall.cache-miss-rate%
2.29 -3.1% 2.21 perf-stat.overall.cpi
163.33 -8.6% 149.29 perf-stat.overall.cycles-between-cache-misses
0.97 +0.0 1.01 perf-stat.overall.dTLB-store-miss-rate%
84.00 +2.6 86.61 perf-stat.overall.iTLB-load-miss-rate%
2789 ± 3% -15.7% 2350 ± 3% perf-stat.overall.instructions-per-iTLB-miss
0.44 +3.2% 0.45 perf-stat.overall.ipc
1754985 -4.7% 1673375 perf-stat.overall.path-length
5.771e+09 +3.6% 5.981e+09 perf-stat.ps.branch-instructions
12074113 ± 2% +8.4% 13094204 ± 2% perf-stat.ps.branch-misses
3.992e+08 +9.8% 4.384e+08 perf-stat.ps.cache-misses
4.814e+08 +7.1% 5.157e+08 perf-stat.ps.cache-references
7.068e+09 +4.2% 7.367e+09 perf-stat.ps.dTLB-loads
40167519 +8.7% 43680173 perf-stat.ps.dTLB-store-misses
4.107e+09 +4.4% 4.288e+09 perf-stat.ps.dTLB-stores
10234325 ± 3% +23.0% 12587000 ± 3% perf-stat.ps.iTLB-load-misses
2.852e+10 +3.6% 2.956e+10 perf-stat.ps.instructions
4897507 +8.4% 5310921 perf-stat.ps.minor-faults
1.351e+08 +10.5% 1.494e+08 perf-stat.ps.node-loads
32335421 +7.6% 34789913 perf-stat.ps.node-stores
4897509 +8.4% 5310923 perf-stat.ps.page-faults
8.623e+12 +3.4% 8.912e+12 perf-stat.total.instructions
9.86 ± 3% -8.4 1.49 ± 5% perf-profile.calltrace.cycles-pp.rmqueue_bulk.__rmqueue_pcplist.rmqueue.get_page_from_freelist.__alloc_pages
8.11 ± 3% -7.5 0.58 ± 8% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.rmqueue_bulk.__rmqueue_pcplist.rmqueue.get_page_from_freelist
8.10 ± 3% -7.5 0.58 ± 8% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.rmqueue_bulk.__rmqueue_pcplist.rmqueue
7.52 ± 3% -6.4 1.15 ± 5% perf-profile.calltrace.cycles-pp.free_pcppages_bulk.free_unref_page_list.release_pages.tlb_batch_pages_flush.zap_pte_range
7.90 ± 4% -6.4 1.55 ± 4% perf-profile.calltrace.cycles-pp.free_unref_page_list.release_pages.tlb_batch_pages_flush.zap_pte_range.zap_pmd_range
5.78 ± 4% -5.8 0.00 perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.free_pcppages_bulk.free_unref_page_list.release_pages.tlb_batch_pages_flush
5.78 ± 4% -5.8 0.00 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.free_pcppages_bulk.free_unref_page_list.release_pages
10.90 ± 3% -5.3 5.59 ± 2% perf-profile.calltrace.cycles-pp.get_page_from_freelist.__alloc_pages.__folio_alloc.vma_alloc_folio.do_cow_fault
10.57 ± 3% -5.3 5.26 ± 3% perf-profile.calltrace.cycles-pp.rmqueue.get_page_from_freelist.__alloc_pages.__folio_alloc.vma_alloc_folio
10.21 ± 3% -5.3 4.94 ± 3% perf-profile.calltrace.cycles-pp.__rmqueue_pcplist.rmqueue.get_page_from_freelist.__alloc_pages.__folio_alloc
11.18 ± 3% -5.3 5.91 ± 2% perf-profile.calltrace.cycles-pp.__folio_alloc.vma_alloc_folio.do_cow_fault.do_fault.__handle_mm_fault
11.15 ± 3% -5.3 5.88 ± 2% perf-profile.calltrace.cycles-pp.__alloc_pages.__folio_alloc.vma_alloc_folio.do_cow_fault.do_fault
11.56 ± 3% -5.2 6.37 ± 2% perf-profile.calltrace.cycles-pp.vma_alloc_folio.do_cow_fault.do_fault.__handle_mm_fault.handle_mm_fault
9.76 ± 3% -4.3 5.50 ± 6% perf-profile.calltrace.cycles-pp.release_pages.tlb_batch_pages_flush.zap_pte_range.zap_pmd_range.unmap_page_range
10.18 ± 3% -4.2 5.95 ± 5% perf-profile.calltrace.cycles-pp.tlb_batch_pages_flush.zap_pte_range.zap_pmd_range.unmap_page_range.unmap_vmas
15.40 ± 3% -3.7 11.70 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__munmap
15.40 ± 3% -3.7 11.70 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap
15.40 ± 3% -3.7 11.70 perf-profile.calltrace.cycles-pp.__munmap
15.40 ± 3% -3.7 11.70 perf-profile.calltrace.cycles-pp.do_vmi_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe
15.40 ± 3% -3.7 11.70 perf-profile.calltrace.cycles-pp.do_vmi_align_munmap.do_vmi_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64
15.40 ± 3% -3.7 11.70 perf-profile.calltrace.cycles-pp.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap
15.40 ± 3% -3.7 11.70 perf-profile.calltrace.cycles-pp.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap
15.39 ± 3% -3.7 11.70 perf-profile.calltrace.cycles-pp.unmap_region.do_vmi_align_munmap.do_vmi_munmap.__vm_munmap.__x64_sys_munmap
14.08 ± 3% -3.6 10.49 perf-profile.calltrace.cycles-pp.zap_pte_range.zap_pmd_range.unmap_page_range.unmap_vmas.unmap_region
14.10 ± 3% -3.6 10.52 perf-profile.calltrace.cycles-pp.unmap_vmas.unmap_region.do_vmi_align_munmap.do_vmi_munmap.__vm_munmap
14.10 ± 3% -3.6 10.52 perf-profile.calltrace.cycles-pp.unmap_page_range.unmap_vmas.unmap_region.do_vmi_align_munmap.do_vmi_munmap
14.10 ± 3% -3.6 10.52 perf-profile.calltrace.cycles-pp.zap_pmd_range.unmap_page_range.unmap_vmas.unmap_region.do_vmi_align_munmap
1.60 ± 2% -0.7 0.86 ± 6% perf-profile.calltrace.cycles-pp.__list_del_entry_valid_or_report.rmqueue_bulk.__rmqueue_pcplist.rmqueue.get_page_from_freelist
0.96 ± 3% -0.4 0.56 ± 3% perf-profile.calltrace.cycles-pp.free_pcppages_bulk.free_unref_page_list.release_pages.tlb_batch_pages_flush.tlb_finish_mmu
1.00 ± 4% -0.4 0.62 ± 4% perf-profile.calltrace.cycles-pp.free_unref_page_list.release_pages.tlb_batch_pages_flush.tlb_finish_mmu.unmap_region
1.26 ± 4% -0.1 1.11 ± 2% perf-profile.calltrace.cycles-pp.release_pages.tlb_batch_pages_flush.tlb_finish_mmu.unmap_region.do_vmi_align_munmap
1.28 ± 3% -0.1 1.16 ± 3% perf-profile.calltrace.cycles-pp.tlb_batch_pages_flush.tlb_finish_mmu.unmap_region.do_vmi_align_munmap.do_vmi_munmap
1.28 ± 4% -0.1 1.17 ± 2% perf-profile.calltrace.cycles-pp.tlb_finish_mmu.unmap_region.do_vmi_align_munmap.do_vmi_munmap.__vm_munmap
0.60 ± 3% -0.0 0.57 perf-profile.calltrace.cycles-pp.__mem_cgroup_charge.do_cow_fault.do_fault.__handle_mm_fault.handle_mm_fault
0.55 ± 3% +0.0 0.60 perf-profile.calltrace.cycles-pp.__perf_sw_event.do_user_addr_fault.exc_page_fault.asm_exc_page_fault.testcase
0.73 ± 3% +0.1 0.79 ± 2% perf-profile.calltrace.cycles-pp.lock_vma_under_rcu.do_user_addr_fault.exc_page_fault.asm_exc_page_fault.testcase
0.68 ± 3% +0.1 0.78 ± 3% perf-profile.calltrace.cycles-pp.page_remove_rmap.zap_pte_range.zap_pmd_range.unmap_page_range.unmap_vmas
0.57 ± 7% +0.1 0.71 ± 8% perf-profile.calltrace.cycles-pp.__mod_lruvec_page_state.folio_add_new_anon_rmap.set_pte_range.finish_fault.do_cow_fault
1.41 ± 3% +0.1 1.55 perf-profile.calltrace.cycles-pp.sync_regs.asm_exc_page_fault.testcase
0.77 ± 4% +0.2 0.93 ± 5% perf-profile.calltrace.cycles-pp.folio_add_new_anon_rmap.set_pte_range.finish_fault.do_cow_fault.do_fault
0.94 ± 3% +0.2 1.12 ± 3% perf-profile.calltrace.cycles-pp.lru_add_fn.folio_batch_move_lru.folio_add_lru_vma.set_pte_range.finish_fault
0.36 ± 70% +0.2 0.57 perf-profile.calltrace.cycles-pp.__perf_sw_event.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_page_fault
1.26 ± 5% +0.2 1.47 ± 3% perf-profile.calltrace.cycles-pp.filemap_get_entry.shmem_get_folio_gfp.shmem_fault.__do_fault.do_cow_fault
1.61 ± 5% +0.3 1.87 ± 3% perf-profile.calltrace.cycles-pp.shmem_get_folio_gfp.shmem_fault.__do_fault.do_cow_fault.do_fault
1.75 ± 5% +0.3 2.05 ± 3% perf-profile.calltrace.cycles-pp.shmem_fault.__do_fault.do_cow_fault.do_fault.__handle_mm_fault
1.86 ± 4% +0.3 2.17 ± 2% perf-profile.calltrace.cycles-pp.__do_fault.do_cow_fault.do_fault.__handle_mm_fault.handle_mm_fault
0.17 ±141% +0.4 0.58 ± 3% perf-profile.calltrace.cycles-pp.xas_load.filemap_get_entry.shmem_get_folio_gfp.shmem_fault.__do_fault
2.60 ± 3% +0.5 3.14 ± 5% perf-profile.calltrace.cycles-pp._compound_head.zap_pte_range.zap_pmd_range.unmap_page_range.unmap_vmas
4.51 ± 3% +0.7 5.16 perf-profile.calltrace.cycles-pp._raw_spin_lock.__pte_offset_map_lock.finish_fault.do_cow_fault.do_fault
4.65 ± 3% +0.7 5.32 perf-profile.calltrace.cycles-pp.__pte_offset_map_lock.finish_fault.do_cow_fault.do_fault.__handle_mm_fault
1.61 ± 3% +1.9 3.52 ± 6% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.folio_batch_move_lru.folio_add_lru_vma
0.85 ± 2% +1.9 2.77 ± 13% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.release_pages.tlb_batch_pages_flush.zap_pte_range
0.84 ± 2% +1.9 2.76 ± 13% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.release_pages.tlb_batch_pages_flush
0.85 ± 2% +1.9 2.78 ± 12% perf-profile.calltrace.cycles-pp.folio_lruvec_lock_irqsave.release_pages.tlb_batch_pages_flush.zap_pte_range.zap_pmd_range
1.71 ± 3% +1.9 3.64 ± 6% perf-profile.calltrace.cycles-pp.folio_lruvec_lock_irqsave.folio_batch_move_lru.folio_add_lru_vma.set_pte_range.finish_fault
1.70 ± 2% +1.9 3.63 ± 6% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.folio_batch_move_lru.folio_add_lru_vma.set_pte_range
3.31 ± 2% +2.2 5.52 ± 5% perf-profile.calltrace.cycles-pp.folio_batch_move_lru.folio_add_lru_vma.set_pte_range.finish_fault.do_cow_fault
3.46 ± 2% +2.2 5.71 ± 5% perf-profile.calltrace.cycles-pp.folio_add_lru_vma.set_pte_range.finish_fault.do_cow_fault.do_fault
4.47 ± 2% +2.4 6.90 ± 4% perf-profile.calltrace.cycles-pp.set_pte_range.finish_fault.do_cow_fault.do_fault.__handle_mm_fault
9.22 ± 2% +3.1 12.33 ± 2% perf-profile.calltrace.cycles-pp.finish_fault.do_cow_fault.do_fault.__handle_mm_fault.handle_mm_fault
44.13 ± 3% +3.2 47.34 perf-profile.calltrace.cycles-pp.do_cow_fault.do_fault.__handle_mm_fault.handle_mm_fault.do_user_addr_fault
44.27 ± 3% +3.2 47.49 perf-profile.calltrace.cycles-pp.do_fault.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.exc_page_fault
45.63 ± 2% +3.3 48.95 perf-profile.calltrace.cycles-pp.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_page_fault
0.00 +3.4 3.37 ± 2% perf-profile.calltrace.cycles-pp.__list_del_entry_valid_or_report.__rmqueue_pcplist.rmqueue.get_page_from_freelist.__alloc_pages
46.88 ± 3% +3.4 50.29 perf-profile.calltrace.cycles-pp.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_page_fault.testcase
49.40 ± 2% +3.6 53.03 perf-profile.calltrace.cycles-pp.do_user_addr_fault.exc_page_fault.asm_exc_page_fault.testcase
49.59 ± 2% +3.7 53.24 perf-profile.calltrace.cycles-pp.exc_page_fault.asm_exc_page_fault.testcase
59.06 ± 2% +4.5 63.60 perf-profile.calltrace.cycles-pp.asm_exc_page_fault.testcase
56.32 ± 3% +4.6 60.89 perf-profile.calltrace.cycles-pp.testcase
20.16 ± 3% +4.9 25.10 perf-profile.calltrace.cycles-pp.copy_page.do_cow_fault.do_fault.__handle_mm_fault.handle_mm_fault
16.66 ± 3% -8.8 7.83 ± 8% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
16.48 ± 3% -8.8 7.66 ± 8% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
9.90 ± 3% -8.4 1.50 ± 5% perf-profile.children.cycles-pp.rmqueue_bulk
8.92 ± 3% -6.7 2.18 ± 2% perf-profile.children.cycles-pp.free_unref_page_list
8.47 ± 3% -6.7 1.74 ± 4% perf-profile.children.cycles-pp.free_pcppages_bulk
10.96 ± 3% -5.3 5.64 ± 2% perf-profile.children.cycles-pp.get_page_from_freelist
10.62 ± 3% -5.3 5.30 ± 2% perf-profile.children.cycles-pp.rmqueue
10.26 ± 3% -5.3 4.97 ± 3% perf-profile.children.cycles-pp.__rmqueue_pcplist
11.24 ± 3% -5.3 5.96 ± 2% perf-profile.children.cycles-pp.__alloc_pages
11.18 ± 3% -5.3 5.92 ± 2% perf-profile.children.cycles-pp.__folio_alloc
11.57 ± 3% -5.2 6.37 ± 2% perf-profile.children.cycles-pp.vma_alloc_folio
11.19 ± 3% -4.4 6.82 ± 5% perf-profile.children.cycles-pp.release_pages
11.46 ± 3% -4.3 7.12 ± 5% perf-profile.children.cycles-pp.tlb_batch_pages_flush
15.52 ± 3% -3.7 11.81 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
15.52 ± 3% -3.7 11.81 perf-profile.children.cycles-pp.do_syscall_64
15.41 ± 3% -3.7 11.70 perf-profile.children.cycles-pp.__munmap
15.40 ± 3% -3.7 11.70 perf-profile.children.cycles-pp.do_vmi_munmap
15.40 ± 3% -3.7 11.70 perf-profile.children.cycles-pp.do_vmi_align_munmap
15.40 ± 3% -3.7 11.70 perf-profile.children.cycles-pp.__x64_sys_munmap
15.40 ± 3% -3.7 11.70 perf-profile.children.cycles-pp.__vm_munmap
15.39 ± 3% -3.7 11.70 perf-profile.children.cycles-pp.unmap_region
14.10 ± 3% -3.6 10.52 perf-profile.children.cycles-pp.unmap_vmas
14.10 ± 3% -3.6 10.52 perf-profile.children.cycles-pp.unmap_page_range
14.10 ± 3% -3.6 10.52 perf-profile.children.cycles-pp.zap_pmd_range
14.10 ± 3% -3.6 10.52 perf-profile.children.cycles-pp.zap_pte_range
2.60 ± 3% -2.0 0.56 ± 4% perf-profile.children.cycles-pp.__free_one_page
1.28 ± 3% -0.1 1.17 ± 2% perf-profile.children.cycles-pp.tlb_finish_mmu
0.15 ± 19% -0.1 0.08 ± 14% perf-profile.children.cycles-pp.get_mem_cgroup_from_mm
0.61 ± 3% -0.0 0.58 ± 2% perf-profile.children.cycles-pp.__mem_cgroup_charge
0.11 ± 6% -0.0 0.08 ± 7% perf-profile.children.cycles-pp.__mod_zone_page_state
0.25 ± 4% +0.0 0.26 perf-profile.children.cycles-pp.error_entry
0.15 ± 3% +0.0 0.17 ± 4% perf-profile.children.cycles-pp.free_unref_page_commit
0.12 ± 8% +0.0 0.14 ± 3% perf-profile.children.cycles-pp.__mem_cgroup_uncharge_list
0.18 ± 3% +0.0 0.20 ± 4% perf-profile.children.cycles-pp.access_error
0.07 ± 5% +0.0 0.09 ± 7% perf-profile.children.cycles-pp.task_tick_fair
0.04 ± 45% +0.0 0.06 ± 7% perf-profile.children.cycles-pp.page_counter_try_charge
0.30 ± 4% +0.0 0.32 perf-profile.children.cycles-pp.down_read_trylock
0.27 ± 3% +0.0 0.30 ± 2% perf-profile.children.cycles-pp.up_read
0.15 ± 8% +0.0 0.18 ± 3% perf-profile.children.cycles-pp.mem_cgroup_update_lru_size
0.02 ±142% +0.1 0.07 ± 29% perf-profile.children.cycles-pp.ret_from_fork_asm
0.44 ± 2% +0.1 0.49 ± 3% perf-profile.children.cycles-pp.mas_walk
0.46 ± 4% +0.1 0.52 ± 2% perf-profile.children.cycles-pp.__mod_memcg_lruvec_state
0.67 ± 3% +0.1 0.73 ± 4% perf-profile.children.cycles-pp.lock_mm_and_find_vma
0.42 ± 3% +0.1 0.48 ± 2% perf-profile.children.cycles-pp.free_swap_cache
0.43 ± 4% +0.1 0.49 ± 2% perf-profile.children.cycles-pp.free_pages_and_swap_cache
0.30 ± 5% +0.1 0.37 ± 3% perf-profile.children.cycles-pp.xas_descend
0.86 ± 3% +0.1 0.92 perf-profile.children.cycles-pp.___perf_sw_event
0.73 ± 3% +0.1 0.80 perf-profile.children.cycles-pp.lock_vma_under_rcu
0.40 ± 2% +0.1 0.47 perf-profile.children.cycles-pp.__mod_node_page_state
0.01 ±223% +0.1 0.09 ± 12% perf-profile.children.cycles-pp.shmem_get_policy
0.53 ± 2% +0.1 0.62 ± 2% perf-profile.children.cycles-pp.__mod_lruvec_state
1.09 ± 3% +0.1 1.18 perf-profile.children.cycles-pp.__perf_sw_event
0.50 ± 5% +0.1 0.60 ± 3% perf-profile.children.cycles-pp.xas_load
0.68 ± 3% +0.1 0.78 ± 3% perf-profile.children.cycles-pp.page_remove_rmap
1.45 ± 3% +0.1 1.60 perf-profile.children.cycles-pp.sync_regs
0.77 ± 4% +0.2 0.93 ± 5% perf-profile.children.cycles-pp.folio_add_new_anon_rmap
0.84 ± 5% +0.2 1.02 ± 7% perf-profile.children.cycles-pp.__mod_lruvec_page_state
0.96 ± 4% +0.2 1.15 ± 3% perf-profile.children.cycles-pp.lru_add_fn
1.27 ± 5% +0.2 1.48 ± 3% perf-profile.children.cycles-pp.filemap_get_entry
1.62 ± 4% +0.3 1.88 ± 3% perf-profile.children.cycles-pp.shmem_get_folio_gfp
1.75 ± 5% +0.3 2.06 ± 3% perf-profile.children.cycles-pp.shmem_fault
1.87 ± 4% +0.3 2.18 ± 2% perf-profile.children.cycles-pp.__do_fault
2.19 ± 2% +0.3 2.51 perf-profile.children.cycles-pp.native_irq_return_iret
2.64 ± 4% +0.5 3.18 ± 6% perf-profile.children.cycles-pp._compound_head
4.62 ± 3% +0.6 5.26 perf-profile.children.cycles-pp._raw_spin_lock
4.67 ± 3% +0.7 5.34 perf-profile.children.cycles-pp.__pte_offset_map_lock
3.32 ± 2% +2.2 5.54 ± 5% perf-profile.children.cycles-pp.folio_batch_move_lru
3.47 ± 2% +2.2 5.72 ± 5% perf-profile.children.cycles-pp.folio_add_lru_vma
4.49 ± 2% +2.4 6.92 ± 4% perf-profile.children.cycles-pp.set_pte_range
9.25 ± 2% +3.1 12.36 ± 2% perf-profile.children.cycles-pp.finish_fault
2.25 ± 2% +3.1 5.36 ± 2% perf-profile.children.cycles-pp.__list_del_entry_valid_or_report
44.16 ± 3% +3.2 47.37 perf-profile.children.cycles-pp.do_cow_fault
44.28 ± 3% +3.2 47.50 perf-profile.children.cycles-pp.do_fault
45.66 ± 2% +3.3 48.98 perf-profile.children.cycles-pp.__handle_mm_fault
46.91 ± 2% +3.4 50.33 perf-profile.children.cycles-pp.handle_mm_fault
49.44 ± 2% +3.6 53.08 perf-profile.children.cycles-pp.do_user_addr_fault
49.62 ± 2% +3.6 53.27 perf-profile.children.cycles-pp.exc_page_fault
2.70 ± 3% +4.1 6.75 ± 8% perf-profile.children.cycles-pp.folio_lruvec_lock_irqsave
55.26 ± 2% +4.2 59.44 perf-profile.children.cycles-pp.asm_exc_page_fault
58.13 ± 3% +4.6 62.72 perf-profile.children.cycles-pp.testcase
20.19 ± 3% +4.9 25.14 perf-profile.children.cycles-pp.copy_page
16.48 ± 3% -8.8 7.66 ± 8% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
2.53 ± 3% -2.0 0.54 ± 3% perf-profile.self.cycles-pp.__free_one_page
0.12 ± 4% -0.1 0.05 ± 46% perf-profile.self.cycles-pp.rmqueue_bulk
0.14 ± 19% -0.1 0.08 ± 14% perf-profile.self.cycles-pp.get_mem_cgroup_from_mm
0.10 ± 3% -0.0 0.08 ± 10% perf-profile.self.cycles-pp.__mod_zone_page_state
0.13 ± 5% +0.0 0.14 ± 2% perf-profile.self.cycles-pp.free_unref_page_commit
0.13 ± 3% +0.0 0.14 ± 3% perf-profile.self.cycles-pp.exc_page_fault
0.15 ± 5% +0.0 0.17 ± 4% perf-profile.self.cycles-pp.__pte_offset_map
0.04 ± 44% +0.0 0.06 ± 6% perf-profile.self.cycles-pp.page_counter_try_charge
0.18 ± 3% +0.0 0.20 ± 4% perf-profile.self.cycles-pp.access_error
0.30 ± 3% +0.0 0.32 ± 2% perf-profile.self.cycles-pp.down_read_trylock
0.16 ± 6% +0.0 0.18 perf-profile.self.cycles-pp.set_pte_range
0.26 ± 2% +0.0 0.29 ± 3% perf-profile.self.cycles-pp.up_read
0.15 ± 8% +0.0 0.18 ± 4% perf-profile.self.cycles-pp.folio_add_lru_vma
0.15 ± 8% +0.0 0.18 ± 3% perf-profile.self.cycles-pp.mem_cgroup_update_lru_size
0.22 ± 6% +0.0 0.26 ± 5% perf-profile.self.cycles-pp.__alloc_pages
0.32 ± 6% +0.0 0.36 ± 3% perf-profile.self.cycles-pp.shmem_get_folio_gfp
0.28 ± 5% +0.0 0.32 ± 4% perf-profile.self.cycles-pp.do_cow_fault
0.14 ± 7% +0.0 0.18 ± 6% perf-profile.self.cycles-pp.shmem_fault
0.34 ± 5% +0.0 0.38 ± 4% perf-profile.self.cycles-pp.__mod_memcg_lruvec_state
0.00 +0.1 0.05 perf-profile.self.cycles-pp.__cond_resched
0.44 ± 3% +0.1 0.49 ± 4% perf-profile.self.cycles-pp.page_remove_rmap
0.41 ± 3% +0.1 0.47 ± 3% perf-profile.self.cycles-pp.free_swap_cache
0.75 ± 3% +0.1 0.81 ± 2% perf-profile.self.cycles-pp.___perf_sw_event
0.91 ± 2% +0.1 0.98 ± 2% perf-profile.self.cycles-pp.__handle_mm_fault
0.29 ± 6% +0.1 0.36 ± 3% perf-profile.self.cycles-pp.xas_descend
0.38 ± 2% +0.1 0.45 ± 2% perf-profile.self.cycles-pp.__mod_node_page_state
0.01 ±223% +0.1 0.09 ± 8% perf-profile.self.cycles-pp.shmem_get_policy
0.58 ± 3% +0.1 0.66 ± 2% perf-profile.self.cycles-pp.release_pages
0.44 ± 4% +0.1 0.54 ± 3% perf-profile.self.cycles-pp.lru_add_fn
1.44 ± 3% +0.1 1.59 perf-profile.self.cycles-pp.sync_regs
2.18 ± 2% +0.3 2.50 perf-profile.self.cycles-pp.native_irq_return_iret
4.36 ± 3% +0.4 4.76 perf-profile.self.cycles-pp.testcase
2.61 ± 4% +0.5 3.14 ± 5% perf-profile.self.cycles-pp._compound_head
4.60 ± 3% +0.6 5.23 perf-profile.self.cycles-pp._raw_spin_lock
2.23 ± 2% +3.1 5.34 ± 2% perf-profile.self.cycles-pp.__list_del_entry_valid_or_report
20.10 ± 3% +4.9 25.02 perf-profile.self.cycles-pp.copy_page
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.
--
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https://github.com/intel/lkp-tests/wiki