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X-OriginatorOrg: intel.com Hello, kernel test robot noticed a 12.1% improvement of stress-ng.bigheap.realloc_calls_per_sec on: commit: 1ea4b473504b6dc6a0d21c298519aff2d52433c9 ("locking/rwsem: Remove the list_head from struct rw_semaphore") https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git locking/core testcase: stress-ng config: x86_64-rhel-9.4 compiler: gcc-14 test machine: 256 threads 4 sockets INTEL(R) XEON(R) PLATINUM 8592+ (Emerald Rapids) with 256G memory parameters: nr_threads: 100% testtime: 60s test: bigheap cpufreq_governor: performance Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20260330/202603302100.d3ef7f01-lkp@intel.com ========================================================================================= compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime: gcc-14/performance/x86_64-rhel-9.4/100%/debian-13-x86_64-20250902.cgz/lkp-emr-2sp1/bigheap/stress-ng/60s commit: b91d5d4bcf ("rust: atomic: Update a safety comment in impl of `fetch_add()`") 1ea4b47350 ("locking/rwsem: Remove the list_head from struct rw_semaphore") b91d5d4bcf126625 1ea4b473504b6dc6a0d21c29851 ---------------- --------------------------- %stddev %change %stddev \ | \ 65871407 +15.5% 76099620 stress-ng.bigheap.ops 1092966 +15.3% 1260047 stress-ng.bigheap.ops_per_sec 656434 +12.1% 735803 stress-ng.bigheap.realloc_calls_per_sec 1.054e+09 +15.5% 1.218e+09 stress-ng.time.minor_page_faults 375.32 +22.4% 459.54 stress-ng.time.user_time 2.71 +0.5 3.25 mpstat.cpu.all.usr% 2079 ± 19% -49.5% 1049 ± 21% perf-c2c.HITM.remote 10266 ± 11% -16.1% 8609 ± 10% perf-c2c.HITM.total 46.42 ± 22% +68.6% 78.24 ± 24% perf-sched.sch_delay.max.ms.[unknown].[unknown].[unknown].[unknown].[unknown] 46.42 ± 22% +68.6% 78.24 ± 24% perf-sched.total_sch_delay.max.ms 0.18 +11.1% 0.20 turbostat.IPC 47.04 ± 9% +29.4 76.40 ± 5% turbostat.PKG_% 38.24 +4.7% 40.02 turbostat.RAMWatt 3.31 +11.1% 3.67 perf-stat.i.MPKI 2.849e+10 +7.2% 3.053e+10 perf-stat.i.branch-instructions 36284203 ± 4% +8.2% 39256911 ± 3% perf-stat.i.branch-misses 32.15 +4.5 36.66 perf-stat.i.cache-miss-rate% 4.536e+08 +22.4% 5.554e+08 perf-stat.i.cache-misses 1.395e+09 +6.7% 1.489e+09 perf-stat.i.cache-references 5.37 -7.4% 4.98 perf-stat.i.cpi 1896 -12.4% 1661 ± 2% perf-stat.i.cycles-between-cache-misses 1.376e+11 +8.7% 1.496e+11 perf-stat.i.instructions 0.19 +8.2% 0.20 perf-stat.i.ipc 139.10 +14.8% 159.64 perf-stat.i.metric.K/sec 17838796 +14.9% 20500158 perf-stat.i.minor-faults 17838796 +14.9% 20500158 perf-stat.i.page-faults 3.26 +12.9% 3.68 perf-stat.overall.MPKI 32.44 +4.7 37.16 perf-stat.overall.cache-miss-rate% 5.39 -7.5% 4.98 perf-stat.overall.cpi 1650 -18.0% 1352 perf-stat.overall.cycles-between-cache-misses 0.19 +8.1% 0.20 perf-stat.overall.ipc 2.751e+10 +6.6% 2.932e+10 perf-stat.ps.branch-instructions 4.338e+08 +22.0% 5.293e+08 perf-stat.ps.cache-misses 1.337e+09 +6.5% 1.424e+09 perf-stat.ps.cache-references 1.329e+11 +8.1% 1.437e+11 perf-stat.ps.instructions 17041476 +14.6% 19533609 perf-stat.ps.minor-faults 17041476 +14.6% 19533610 perf-stat.ps.page-faults 7.937e+12 +7.5% 8.535e+12 perf-stat.total.instructions 52.50 -15.8 36.72 ± 6% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.si_swapinfo.do_sysinfo.__do_sys_sysinfo 52.65 -15.8 36.88 ± 6% perf-profile.calltrace.cycles-pp.si_swapinfo.do_sysinfo.__do_sys_sysinfo.do_syscall_64.entry_SYSCALL_64_after_hwframe 52.65 -15.8 36.88 ± 6% perf-profile.calltrace.cycles-pp._raw_spin_lock.si_swapinfo.do_sysinfo.__do_sys_sysinfo.do_syscall_64 53.44 -6.8 46.66 ± 2% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.sysinfo 53.42 -6.8 46.65 ± 2% perf-profile.calltrace.cycles-pp.__do_sys_sysinfo.do_syscall_64.entry_SYSCALL_64_after_hwframe.sysinfo 53.44 -6.8 46.67 ± 2% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.sysinfo 53.47 -6.8 46.71 ± 2% perf-profile.calltrace.cycles-pp.sysinfo 53.25 -6.7 46.53 ± 2% perf-profile.calltrace.cycles-pp.do_sysinfo.__do_sys_sysinfo.do_syscall_64.entry_SYSCALL_64_after_hwframe.sysinfo 0.96 +0.1 1.09 ± 3% perf-profile.calltrace.cycles-pp.sync_regs.asm_exc_page_fault.stress_bigheap_child 1.67 +0.4 2.10 ± 3% perf-profile.calltrace.cycles-pp.kernel_init_pages.prep_new_page.get_page_from_freelist.__alloc_frozen_pages_noprof.alloc_pages_mpol 1.72 +0.4 2.15 ± 3% perf-profile.calltrace.cycles-pp.prep_new_page.get_page_from_freelist.__alloc_frozen_pages_noprof.alloc_pages_mpol.vma_alloc_folio_noprof 0.00 +0.6 0.56 ± 3% perf-profile.calltrace.cycles-pp.lru_add.folio_batch_move_lru.__folio_batch_add_and_move.do_anonymous_page.__handle_mm_fault 0.08 ±223% +0.6 0.65 ± 2% perf-profile.calltrace.cycles-pp.rmqueue.get_page_from_freelist.__alloc_frozen_pages_noprof.alloc_pages_mpol.vma_alloc_folio_noprof 0.00 +0.6 0.58 ± 2% perf-profile.calltrace.cycles-pp.folio_add_new_anon_rmap.do_anonymous_page.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 2.32 +0.7 2.98 ± 3% perf-profile.calltrace.cycles-pp.get_page_from_freelist.__alloc_frozen_pages_noprof.alloc_pages_mpol.vma_alloc_folio_noprof.alloc_anon_folio 2.43 +0.7 3.12 ± 3% perf-profile.calltrace.cycles-pp.__alloc_frozen_pages_noprof.alloc_pages_mpol.vma_alloc_folio_noprof.alloc_anon_folio.do_anonymous_page 2.50 +0.7 3.20 ± 3% perf-profile.calltrace.cycles-pp.alloc_pages_mpol.vma_alloc_folio_noprof.alloc_anon_folio.do_anonymous_page.__handle_mm_fault 2.60 +0.7 3.31 ± 3% perf-profile.calltrace.cycles-pp.vma_alloc_folio_noprof.alloc_anon_folio.do_anonymous_page.__handle_mm_fault.handle_mm_fault 0.86 ± 27% +0.8 1.64 ± 12% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.folio_batch_move_lru.__folio_batch_add_and_move.do_anonymous_page 0.84 ± 27% +0.8 1.62 ± 13% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.folio_batch_move_lru.__folio_batch_add_and_move 0.86 ± 26% +0.8 1.65 ± 12% perf-profile.calltrace.cycles-pp.folio_lruvec_lock_irqsave.folio_batch_move_lru.__folio_batch_add_and_move.do_anonymous_page.__handle_mm_fault 1.51 ± 15% +0.9 2.40 ± 9% perf-profile.calltrace.cycles-pp.folio_batch_move_lru.__folio_batch_add_and_move.do_anonymous_page.__handle_mm_fault.handle_mm_fault 1.82 +0.9 2.73 ± 6% perf-profile.calltrace.cycles-pp.__mem_cgroup_charge.alloc_anon_folio.do_anonymous_page.__handle_mm_fault.handle_mm_fault 1.60 ± 14% +0.9 2.50 ± 8% perf-profile.calltrace.cycles-pp.__folio_batch_add_and_move.do_anonymous_page.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 1.74 +0.9 2.66 ± 4% perf-profile.calltrace.cycles-pp.pte_offset_map_lock.do_anonymous_page.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 0.00 +1.0 0.97 ± 54% perf-profile.calltrace.cycles-pp.get_mem_cgroup_from_mm.__mem_cgroup_charge.alloc_anon_folio.do_anonymous_page.__handle_mm_fault 4.52 +1.6 6.16 ± 3% perf-profile.calltrace.cycles-pp.alloc_anon_folio.do_anonymous_page.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 26.88 +1.7 28.56 ± 5% perf-profile.calltrace.cycles-pp.__page_cache_release.folios_put_refs.free_pages_and_swap_cache.__tlb_batch_free_encoded_pages.tlb_flush_mmu 28.94 +1.7 30.66 ± 5% perf-profile.calltrace.cycles-pp.folios_put_refs.free_pages_and_swap_cache.__tlb_batch_free_encoded_pages.tlb_flush_mmu.zap_pte_range 28.98 +1.7 30.70 ± 5% perf-profile.calltrace.cycles-pp.free_pages_and_swap_cache.__tlb_batch_free_encoded_pages.tlb_flush_mmu.zap_pte_range.zap_pmd_range 28.98 +1.7 30.71 ± 6% perf-profile.calltrace.cycles-pp.__tlb_batch_free_encoded_pages.tlb_flush_mmu.zap_pte_range.zap_pmd_range.unmap_page_range 28.98 +1.7 30.71 ± 6% perf-profile.calltrace.cycles-pp.tlb_flush_mmu.zap_pte_range.zap_pmd_range.unmap_page_range.unmap_vmas 29.33 +1.7 31.07 ± 6% perf-profile.calltrace.cycles-pp.zap_pte_range.zap_pmd_range.unmap_page_range.unmap_vmas.unmap_region 29.33 +1.7 31.08 ± 5% perf-profile.calltrace.cycles-pp.unmap_page_range.unmap_vmas.unmap_region.vms_complete_munmap_vmas.do_vmi_align_munmap 29.33 +1.7 31.08 ± 5% perf-profile.calltrace.cycles-pp.unmap_vmas.unmap_region.vms_complete_munmap_vmas.do_vmi_align_munmap.do_vmi_munmap 29.33 +1.7 31.08 ± 5% perf-profile.calltrace.cycles-pp.zap_pmd_range.unmap_page_range.unmap_vmas.unmap_region.vms_complete_munmap_vmas 27.13 +1.8 28.93 ± 6% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.__page_cache_release.folios_put_refs 27.15 +1.8 28.95 ± 6% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.__page_cache_release.folios_put_refs.free_pages_and_swap_cache 27.15 +1.8 28.95 ± 6% perf-profile.calltrace.cycles-pp.folio_lruvec_lock_irqsave.__page_cache_release.folios_put_refs.free_pages_and_swap_cache.__tlb_batch_free_encoded_pages 29.98 +1.9 31.88 ± 6% perf-profile.calltrace.cycles-pp.__munmap 29.98 +1.9 31.88 ± 6% perf-profile.calltrace.cycles-pp.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap 29.98 +1.9 31.88 ± 6% perf-profile.calltrace.cycles-pp.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap 29.98 +1.9 31.88 ± 6% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap 29.98 +1.9 31.88 ± 6% perf-profile.calltrace.cycles-pp.do_vmi_align_munmap.do_vmi_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64 29.98 +1.9 31.88 ± 6% perf-profile.calltrace.cycles-pp.do_vmi_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe 29.98 +1.9 31.88 ± 6% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__munmap 29.98 +1.9 31.88 ± 6% perf-profile.calltrace.cycles-pp.unmap_region.vms_complete_munmap_vmas.do_vmi_align_munmap.do_vmi_munmap.__vm_munmap 29.98 +1.9 31.88 ± 6% perf-profile.calltrace.cycles-pp.vms_complete_munmap_vmas.do_vmi_align_munmap.do_vmi_munmap.__vm_munmap.__x64_sys_munmap 8.76 ± 3% +3.7 12.48 ± 3% perf-profile.calltrace.cycles-pp.do_anonymous_page.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.exc_page_fault 9.13 ± 3% +3.8 12.91 ± 3% perf-profile.calltrace.cycles-pp.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_page_fault 9.41 ± 3% +3.8 13.25 ± 3% perf-profile.calltrace.cycles-pp.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_page_fault.stress_bigheap_child 10.00 ± 3% +3.9 13.91 ± 3% perf-profile.calltrace.cycles-pp.do_user_addr_fault.exc_page_fault.asm_exc_page_fault.stress_bigheap_child 10.06 ± 3% +3.9 13.98 ± 3% perf-profile.calltrace.cycles-pp.exc_page_fault.asm_exc_page_fault.stress_bigheap_child 14.61 ± 2% +4.5 19.13 ± 3% perf-profile.calltrace.cycles-pp.asm_exc_page_fault.stress_bigheap_child 14.43 ± 2% +4.7 19.14 ± 3% perf-profile.calltrace.cycles-pp.stress_bigheap_child 0.49 ± 45% +9.1 9.60 ± 24% perf-profile.calltrace.cycles-pp.si_meminfo.do_sysinfo.__do_sys_sysinfo.do_syscall_64.entry_SYSCALL_64_after_hwframe 0.36 ± 71% +9.2 9.53 ± 24% perf-profile.calltrace.cycles-pp.nr_blockdev_pages.si_meminfo.do_sysinfo.__do_sys_sysinfo.do_syscall_64 0.18 ±141% +9.3 9.49 ± 24% perf-profile.calltrace.cycles-pp._raw_spin_lock.nr_blockdev_pages.si_meminfo.do_sysinfo.__do_sys_sysinfo 0.08 ±223% +9.3 9.40 ± 24% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.nr_blockdev_pages.si_meminfo.do_sysinfo 52.65 -15.8 36.88 ± 6% perf-profile.children.cycles-pp.si_swapinfo 53.42 -6.8 46.65 ± 2% perf-profile.children.cycles-pp.__do_sys_sysinfo 53.48 -6.8 46.72 ± 2% perf-profile.children.cycles-pp.sysinfo 53.23 -6.7 46.48 ± 2% perf-profile.children.cycles-pp._raw_spin_lock 53.25 -6.7 46.54 ± 2% perf-profile.children.cycles-pp.do_sysinfo 84.09 -4.9 79.21 perf-profile.children.cycles-pp.do_syscall_64 84.09 -4.9 79.21 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe 82.57 -4.2 78.40 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath 0.30 -0.1 0.24 ± 4% perf-profile.children.cycles-pp.expand_vma 0.17 ± 2% -0.1 0.11 ± 4% perf-profile.children.cycles-pp._copy_to_user 0.07 +0.0 0.08 perf-profile.children.cycles-pp.__pte_offset_map 0.11 +0.0 0.12 perf-profile.children.cycles-pp.mod_lruvec_state 0.06 +0.0 0.07 perf-profile.children.cycles-pp.arch_exit_to_user_mode_prepare 0.06 +0.0 0.07 perf-profile.children.cycles-pp.pte_offset_map_rw_nolock 0.07 +0.0 0.08 ± 5% perf-profile.children.cycles-pp.irqentry_exit 0.05 +0.0 0.06 ± 7% perf-profile.children.cycles-pp.count_memcg_events 0.07 ± 5% +0.0 0.09 ± 4% perf-profile.children.cycles-pp._raw_spin_trylock 0.11 +0.0 0.13 ± 4% perf-profile.children.cycles-pp.vma_merge_new_range 0.08 +0.0 0.10 perf-profile.children.cycles-pp.__mod_zone_page_state 0.14 +0.0 0.16 ± 4% perf-profile.children.cycles-pp.mas_walk 0.09 ± 4% +0.0 0.12 ± 4% perf-profile.children.cycles-pp.css_rstat_updated 0.18 +0.0 0.21 perf-profile.children.cycles-pp.mod_node_page_state 0.22 +0.0 0.25 ± 2% perf-profile.children.cycles-pp.___perf_sw_event 0.14 ± 4% +0.0 0.17 ± 8% perf-profile.children.cycles-pp.move_ptes 0.06 +0.0 0.09 ± 4% perf-profile.children.cycles-pp.page_counter_try_charge 0.14 +0.0 0.17 ± 4% perf-profile.children.cycles-pp.vma_merge_extend 0.28 +0.0 0.32 ± 3% perf-profile.children.cycles-pp.__perf_sw_event 0.27 +0.0 0.31 ± 3% perf-profile.children.cycles-pp.lock_vma_under_rcu 0.19 ± 3% +0.0 0.23 ± 9% perf-profile.children.cycles-pp.copy_vma_and_data 0.19 ± 3% +0.0 0.23 ± 9% perf-profile.children.cycles-pp.move_page_tables 0.22 ± 3% +0.0 0.26 ± 9% perf-profile.children.cycles-pp.move_vma 0.00 +0.1 0.05 perf-profile.children.cycles-pp.perf_swevent_event 0.11 ± 3% +0.1 0.17 ± 5% perf-profile.children.cycles-pp.expand 0.37 ± 13% +0.1 0.43 ± 4% perf-profile.children.cycles-pp.cmd_record 0.38 +0.1 0.44 ± 3% perf-profile.children.cycles-pp.lru_gen_add_folio 0.12 ± 48% +0.1 0.19 ± 5% perf-profile.children.cycles-pp.add_callchain_ip 0.50 +0.1 0.57 ± 3% perf-profile.children.cycles-pp.lru_add 0.16 ± 48% +0.1 0.24 ± 6% perf-profile.children.cycles-pp.__thread__resolve_callchain 0.17 ± 48% +0.1 0.25 ± 7% perf-profile.children.cycles-pp.sample__for_each_callchain_node 0.32 ± 2% +0.1 0.41 ± 3% perf-profile.children.cycles-pp.mod_memcg_lruvec_state 0.17 ± 49% +0.1 0.26 ± 6% perf-profile.children.cycles-pp.build_id__mark_dso_hit 0.18 ± 48% +0.1 0.28 ± 6% perf-profile.children.cycles-pp.__ordered_events__flush 0.18 ± 49% +0.1 0.28 ± 6% perf-profile.children.cycles-pp.perf_session__deliver_event 0.36 ± 2% +0.1 0.48 ± 2% perf-profile.children.cycles-pp.__folio_mod_stat 0.45 +0.1 0.57 ± 2% perf-profile.children.cycles-pp.lruvec_stat_mod_folio 0.46 +0.1 0.58 ± 2% perf-profile.children.cycles-pp.folio_add_new_anon_rmap 0.97 +0.1 1.10 ± 2% perf-profile.children.cycles-pp.sync_regs 0.30 ± 9% +0.1 0.44 ± 4% perf-profile.children.cycles-pp.rmqueue_bulk 0.94 ± 2% +0.1 1.08 ± 3% perf-profile.children.cycles-pp.native_irq_return_iret 0.35 ± 7% +0.2 0.51 ± 3% perf-profile.children.cycles-pp.__rmqueue_pcplist 0.51 ± 5% +0.2 0.69 ± 2% perf-profile.children.cycles-pp.rmqueue 1.70 +0.4 2.13 ± 3% perf-profile.children.cycles-pp.kernel_init_pages 1.74 +0.4 2.17 ± 3% perf-profile.children.cycles-pp.prep_new_page 0.36 ± 5% +0.6 0.98 ± 54% perf-profile.children.cycles-pp.get_mem_cgroup_from_mm 2.36 +0.7 3.02 ± 3% perf-profile.children.cycles-pp.get_page_from_freelist 2.49 +0.7 3.18 ± 3% perf-profile.children.cycles-pp.__alloc_frozen_pages_noprof 2.57 +0.7 3.28 ± 3% perf-profile.children.cycles-pp.alloc_pages_mpol 2.61 +0.7 3.32 ± 3% perf-profile.children.cycles-pp.vma_alloc_folio_noprof 1.54 ± 15% +0.9 2.44 ± 9% perf-profile.children.cycles-pp.folio_batch_move_lru 1.63 ± 14% +0.9 2.53 ± 8% perf-profile.children.cycles-pp.__folio_batch_add_and_move 1.85 +0.9 2.76 ± 5% perf-profile.children.cycles-pp.__mem_cgroup_charge 1.76 +0.9 2.68 ± 4% perf-profile.children.cycles-pp.pte_offset_map_lock 4.55 +1.7 6.20 ± 3% perf-profile.children.cycles-pp.alloc_anon_folio 28.98 +1.7 30.71 ± 6% perf-profile.children.cycles-pp.tlb_flush_mmu 29.36 +1.7 31.11 ± 5% perf-profile.children.cycles-pp.unmap_page_range 29.36 +1.7 31.11 ± 5% perf-profile.children.cycles-pp.unmap_vmas 29.36 +1.7 31.11 ± 5% perf-profile.children.cycles-pp.zap_pmd_range 29.36 +1.7 31.11 ± 5% perf-profile.children.cycles-pp.zap_pte_range 27.51 +1.8 29.34 ± 6% perf-profile.children.cycles-pp.__page_cache_release 29.64 +1.9 31.52 ± 6% perf-profile.children.cycles-pp.__tlb_batch_free_encoded_pages 29.64 +1.9 31.52 ± 6% perf-profile.children.cycles-pp.free_pages_and_swap_cache 29.68 +1.9 31.56 ± 6% perf-profile.children.cycles-pp.folios_put_refs 29.98 +1.9 31.88 ± 6% perf-profile.children.cycles-pp.__munmap 29.98 +1.9 31.88 ± 6% perf-profile.children.cycles-pp.__vm_munmap 29.98 +1.9 31.88 ± 6% perf-profile.children.cycles-pp.__x64_sys_munmap 30.01 +1.9 31.91 ± 6% perf-profile.children.cycles-pp.do_vmi_munmap 30.02 +1.9 31.92 ± 6% perf-profile.children.cycles-pp.do_vmi_align_munmap 30.02 +1.9 31.92 ± 6% perf-profile.children.cycles-pp.unmap_region 30.02 +1.9 31.92 ± 6% perf-profile.children.cycles-pp.vms_complete_munmap_vmas 28.06 +2.6 30.64 ± 5% perf-profile.children.cycles-pp.folio_lruvec_lock_irqsave 29.68 +2.6 32.32 ± 5% perf-profile.children.cycles-pp._raw_spin_lock_irqsave 8.82 ± 3% +3.7 12.56 ± 3% perf-profile.children.cycles-pp.do_anonymous_page 9.14 ± 3% +3.8 12.92 ± 3% perf-profile.children.cycles-pp.__handle_mm_fault 9.43 ± 3% +3.8 13.27 ± 3% perf-profile.children.cycles-pp.handle_mm_fault 10.02 ± 3% +3.9 13.94 ± 3% perf-profile.children.cycles-pp.do_user_addr_fault 10.07 ± 3% +3.9 14.00 ± 3% perf-profile.children.cycles-pp.exc_page_fault 13.04 ± 2% +4.3 17.35 ± 3% perf-profile.children.cycles-pp.asm_exc_page_fault 15.35 ± 2% +4.8 20.16 ± 3% perf-profile.children.cycles-pp.stress_bigheap_child 0.50 ± 15% +9.0 9.54 ± 24% perf-profile.children.cycles-pp.nr_blockdev_pages 0.55 ± 13% +9.0 9.60 ± 24% perf-profile.children.cycles-pp.si_meminfo 82.38 -4.1 78.24 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath 0.16 ± 2% -0.1 0.11 ± 4% perf-profile.self.cycles-pp._copy_to_user 0.05 +0.0 0.06 perf-profile.self.cycles-pp.__rmqueue_pcplist 0.07 +0.0 0.08 perf-profile.self.cycles-pp._raw_spin_trylock 0.06 +0.0 0.07 ± 5% perf-profile.self.cycles-pp.folio_add_lru 0.09 +0.0 0.10 ± 4% perf-profile.self.cycles-pp.folio_add_new_anon_rmap 0.11 +0.0 0.12 ± 4% perf-profile.self.cycles-pp.lru_add 0.08 ± 5% +0.0 0.10 ± 3% perf-profile.self.cycles-pp.rmqueue 0.14 +0.0 0.16 ± 3% perf-profile.self.cycles-pp.lock_vma_under_rcu 0.11 ± 3% +0.0 0.13 ± 2% perf-profile.self.cycles-pp.handle_mm_fault 0.05 +0.0 0.07 ± 7% perf-profile.self.cycles-pp.si_meminfo 0.13 ± 2% +0.0 0.14 ± 3% perf-profile.self.cycles-pp.do_user_addr_fault 0.08 +0.0 0.10 ± 4% perf-profile.self.cycles-pp.folio_batch_move_lru 0.14 ± 3% +0.0 0.16 ± 3% perf-profile.self.cycles-pp.mas_walk 0.07 +0.0 0.09 perf-profile.self.cycles-pp.__mod_zone_page_state 0.07 ± 7% +0.0 0.09 ± 5% perf-profile.self.cycles-pp.rmqueue_bulk 0.16 +0.0 0.18 ± 2% perf-profile.self.cycles-pp.folios_put_refs 0.08 ± 4% +0.0 0.10 ± 5% perf-profile.self.cycles-pp.alloc_anon_folio 0.15 +0.0 0.17 ± 4% perf-profile.self.cycles-pp.___perf_sw_event 0.08 ± 10% +0.0 0.10 perf-profile.self.cycles-pp.css_rstat_updated 0.12 ± 4% +0.0 0.15 ± 7% perf-profile.self.cycles-pp.move_ptes 0.06 ± 9% +0.0 0.08 ± 5% perf-profile.self.cycles-pp.page_counter_try_charge 0.24 ± 4% +0.0 0.26 ± 2% perf-profile.self.cycles-pp.__handle_mm_fault 0.16 ± 2% +0.0 0.20 ± 2% perf-profile.self.cycles-pp.mod_node_page_state 0.23 +0.0 0.26 ± 2% perf-profile.self.cycles-pp.lru_gen_add_folio 0.13 ± 3% +0.0 0.16 ± 4% perf-profile.self.cycles-pp.get_page_from_freelist 0.10 ± 4% +0.0 0.14 ± 4% perf-profile.self.cycles-pp.__alloc_frozen_pages_noprof 0.00 +0.1 0.05 perf-profile.self.cycles-pp.alloc_pages_mpol 0.11 ± 4% +0.1 0.16 ± 5% perf-profile.self.cycles-pp.expand 0.25 ± 2% +0.1 0.31 ± 4% perf-profile.self.cycles-pp.mod_memcg_lruvec_state 0.28 ± 3% +0.1 0.34 ± 4% perf-profile.self.cycles-pp._raw_spin_lock 0.16 ± 2% +0.1 0.23 ± 15% perf-profile.self.cycles-pp.__mem_cgroup_charge 0.32 +0.1 0.44 ± 7% perf-profile.self.cycles-pp.do_anonymous_page 0.96 +0.1 1.09 ± 3% perf-profile.self.cycles-pp.sync_regs 0.94 ± 2% +0.1 1.08 ± 3% perf-profile.self.cycles-pp.native_irq_return_iret 1.69 +0.4 2.12 ± 3% perf-profile.self.cycles-pp.kernel_init_pages 3.12 +0.6 3.69 ± 4% perf-profile.self.cycles-pp.stress_bigheap_child 0.35 ± 5% +0.6 0.97 ± 54% perf-profile.self.cycles-pp.get_mem_cgroup_from_mm 1.62 +0.9 2.52 ± 4% perf-profile.self.cycles-pp.pte_offset_map_lock 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