Hello,
kernel test robot noticed a 3.9% improvement of will-it-scale.per_process_ops on:
commit: fd892593d44d8b649caf30a67f0c7696d976d901 ("mm: change do_vmi_align_munmap() tracking of VMAs to remove")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
testcase: will-it-scale
test machine: 104 threads 2 sockets (Skylake) with 192G memory
parameters:
nr_task: 100%
mode: process
test: brk2
cpufreq_governor: performance
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20231026/[email protected]
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase:
gcc-12/performance/x86_64-rhel-8.3/process/100%/debian-11.1-x86_64-20220510.cgz/lkp-skl-fpga01/brk2/will-it-scale
commit:
8c314f3b55 ("maple_tree: add benchmarking for mas_prev()")
fd892593d4 ("mm: change do_vmi_align_munmap() tracking of VMAs to remove")
8c314f3b55fbc422 fd892593d44d8b649caf30a67f0
---------------- ---------------------------
%stddev %change %stddev
\ | \
44.35 +1.3% 44.94 turbostat.RAMWatt
7472 +2.2% 7638 vmstat.system.cs
13163009 +3.9% 13672076 will-it-scale.104.processes
126566 +3.9% 131461 will-it-scale.per_process_ops
13163009 +3.9% 13672076 will-it-scale.workload
3.703e+08 +2.3% 3.789e+08 proc-vmstat.numa_hit
3.702e+08 +2.3% 3.788e+08 proc-vmstat.numa_local
7.24e+08 +2.3% 7.407e+08 proc-vmstat.pgalloc_normal
7.23e+08 +2.3% 7.397e+08 proc-vmstat.pgfree
5.72 ? 6% -100.0% 0.00 perf-sched.wait_and_delay.avg.ms.__cond_resched.unmap_vmas.unmap_region.do_vmi_align_munmap.__do_sys_brk
442.80 ? 5% +9.9% 486.50 ? 5% perf-sched.wait_and_delay.count.__cond_resched.kmem_cache_alloc.mas_alloc_nodes.mas_preallocate.do_brk_flags
407.80 ? 6% +12.5% 458.90 ? 4% perf-sched.wait_and_delay.count.__cond_resched.kmem_cache_alloc.vm_area_dup.__split_vma.do_vmi_align_munmap
311.30 ? 11% -20.7% 246.80 ? 5% perf-sched.wait_and_delay.count.__cond_resched.remove_vma.do_vmi_align_munmap.__do_sys_brk.do_syscall_64
1114 ? 3% -100.0% 0.00 perf-sched.wait_and_delay.count.__cond_resched.unmap_vmas.unmap_region.do_vmi_align_munmap.__do_sys_brk
28.01 ? 36% -100.0% 0.00 perf-sched.wait_and_delay.max.ms.__cond_resched.unmap_vmas.unmap_region.do_vmi_align_munmap.__do_sys_brk
6.22 ? 19% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.unmap_page_range.unmap_vmas.unmap_region.do_vmi_align_munmap
5.72 ? 6% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.unmap_vmas.unmap_region.do_vmi_align_munmap.__do_sys_brk
14.25 ? 10% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.unmap_page_range.unmap_vmas.unmap_region.do_vmi_align_munmap
28.01 ? 36% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.unmap_vmas.unmap_region.do_vmi_align_munmap.__do_sys_brk
2.49 +3.5% 2.58 perf-stat.i.MPKI
3.407e+08 +3.5% 3.527e+08 perf-stat.i.cache-misses
5.063e+08 +3.7% 5.25e+08 perf-stat.i.cache-references
7446 +2.3% 7616 perf-stat.i.context-switches
248.21 +2.2% 253.65 perf-stat.i.cpu-migrations
817.56 -3.4% 789.61 perf-stat.i.cycles-between-cache-misses
0.04 +0.0 0.04 perf-stat.i.dTLB-load-miss-rate%
14854767 +3.6% 15392456 perf-stat.i.dTLB-load-misses
13577896 +4.9% 14238965 perf-stat.i.iTLB-load-misses
24153428 +3.4% 24977848 perf-stat.i.iTLB-loads
10082 -4.6% 9618 perf-stat.i.instructions-per-iTLB-miss
1532 +3.0% 1578 perf-stat.i.metric.K/sec
43693423 +2.7% 44860627 perf-stat.i.node-loads
86115914 +2.6% 88355886 perf-stat.i.node-stores
2.49 +3.5% 2.58 perf-stat.overall.MPKI
817.24 -3.4% 789.30 perf-stat.overall.cycles-between-cache-misses
0.04 +0.0 0.04 perf-stat.overall.dTLB-load-miss-rate%
10079 -4.6% 9614 perf-stat.overall.instructions-per-iTLB-miss
3134760 -3.7% 3019810 perf-stat.overall.path-length
3.396e+08 +3.5% 3.515e+08 perf-stat.ps.cache-misses
5.046e+08 +3.7% 5.232e+08 perf-stat.ps.cache-references
7420 +2.3% 7589 perf-stat.ps.context-switches
247.36 +2.2% 252.76 perf-stat.ps.cpu-migrations
14810795 +3.6% 15350854 perf-stat.ps.dTLB-load-misses
13531716 +4.9% 14190673 perf-stat.ps.iTLB-load-misses
24072354 +3.4% 24894366 perf-stat.ps.iTLB-loads
43550846 +2.7% 44720688 perf-stat.ps.node-loads
85827526 +2.6% 88063334 perf-stat.ps.node-stores
36.62 -1.0 35.60 perf-profile.calltrace.cycles-pp.do_vmi_align_munmap.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
1.94 -0.8 1.18 perf-profile.calltrace.cycles-pp.mas_wr_store_entry.mas_store_gfp.do_vmi_align_munmap.__do_sys_brk.do_syscall_64
5.74 -0.7 5.01 perf-profile.calltrace.cycles-pp.mas_store_gfp.do_vmi_align_munmap.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.89 ? 3% -0.5 2.41 ? 5% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__slab_free.rcu_do_batch.rcu_core.__do_softirq
2.84 ? 3% -0.5 2.36 ? 5% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.__slab_free.rcu_do_batch.rcu_core
5.17 ? 2% -0.5 4.70 ? 3% perf-profile.calltrace.cycles-pp.__slab_free.rcu_do_batch.rcu_core.__do_softirq.run_ksoftirqd
4.47 -0.4 4.04 perf-profile.calltrace.cycles-pp.mas_destroy.mas_store_prealloc.do_brk_flags.__do_sys_brk.do_syscall_64
3.42 -0.4 3.06 perf-profile.calltrace.cycles-pp.unmap_region.do_vmi_align_munmap.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.49 -0.4 1.14 ? 3% perf-profile.calltrace.cycles-pp.__unfreeze_partials.kmem_cache_free_bulk.mas_destroy.mas_store_prealloc.do_brk_flags
2.54 -0.3 2.21 perf-profile.calltrace.cycles-pp.kmem_cache_free_bulk.mas_destroy.mas_store_prealloc.do_brk_flags.__do_sys_brk
1.10 -0.3 0.82 ? 5% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__unfreeze_partials.kmem_cache_free_bulk.mas_destroy.mas_store_prealloc
1.09 -0.3 0.82 ? 4% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.__unfreeze_partials.kmem_cache_free_bulk.mas_destroy
4.53 -0.3 4.28 ? 2% perf-profile.calltrace.cycles-pp.__kmem_cache_alloc_bulk.kmem_cache_alloc_bulk.mas_alloc_nodes.mas_preallocate.__split_vma
4.88 -0.3 4.63 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_bulk.mas_alloc_nodes.mas_preallocate.__split_vma.do_vmi_align_munmap
5.53 -0.2 5.31 perf-profile.calltrace.cycles-pp.mas_alloc_nodes.mas_preallocate.__split_vma.do_vmi_align_munmap.__do_sys_brk
5.64 -0.2 5.42 perf-profile.calltrace.cycles-pp.mas_preallocate.__split_vma.do_vmi_align_munmap.__do_sys_brk.do_syscall_64
0.60 -0.1 0.47 ? 33% perf-profile.calltrace.cycles-pp.mas_alloc_nodes.mas_wr_bnode.mas_store_gfp.do_vmi_align_munmap.__do_sys_brk
0.85 -0.1 0.72 perf-profile.calltrace.cycles-pp.mas_next_slot.do_vmi_align_munmap.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.10 -0.1 1.00 ? 3% perf-profile.calltrace.cycles-pp.__unfreeze_partials.mas_destroy.mas_store_prealloc.do_brk_flags.__do_sys_brk
0.81 ? 2% -0.1 0.72 ? 5% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__unfreeze_partials.mas_destroy.mas_store_prealloc.do_brk_flags
1.09 -0.1 1.01 perf-profile.calltrace.cycles-pp.kmem_cache_free_bulk.mas_destroy.mas_store_prealloc.vma_complete.__split_vma
0.53 +0.0 0.56 perf-profile.calltrace.cycles-pp.mas_store_b_node.mas_wr_spanning_store.mas_store_prealloc.do_brk_flags.__do_sys_brk
0.58 +0.0 0.61 perf-profile.calltrace.cycles-pp.mab_mas_cp.mas_split_final_node.mas_split.mas_wr_bnode.mas_store_prealloc
0.75 +0.0 0.78 perf-profile.calltrace.cycles-pp.mas_walk.mas_find.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.61 +0.0 0.65 ? 2% perf-profile.calltrace.cycles-pp.get_unmapped_area.check_brk_limits.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.71 +0.0 0.75 perf-profile.calltrace.cycles-pp.check_brk_limits.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
0.71 +0.0 0.75 perf-profile.calltrace.cycles-pp.memcg_slab_post_alloc_hook.kmem_cache_alloc.vm_area_dup.__split_vma.do_vmi_align_munmap
1.10 +0.0 1.14 perf-profile.calltrace.cycles-pp.perf_event_mmap_output.perf_iterate_sb.perf_event_mmap_event.perf_event_mmap.do_brk_flags
1.08 +0.0 1.12 perf-profile.calltrace.cycles-pp.mas_descend_adopt.mas_wmb_replace.mas_spanning_rebalance.mas_wr_spanning_store.mas_store_prealloc
0.71 ? 2% +0.1 0.76 ? 2% perf-profile.calltrace.cycles-pp.mas_pop_node.mas_split.mas_wr_bnode.mas_store_prealloc.vma_complete
1.00 +0.1 1.05 perf-profile.calltrace.cycles-pp.__call_rcu_common.mas_wmb_replace.mas_spanning_rebalance.mas_wr_spanning_store.mas_store_prealloc
0.76 +0.1 0.81 perf-profile.calltrace.cycles-pp.mas_mab_cp.mas_store_b_node.mas_wr_bnode.mas_store_prealloc.vma_complete
0.74 ? 2% +0.1 0.80 perf-profile.calltrace.cycles-pp.zap_pmd_range.unmap_page_range.unmap_vmas.unmap_region.do_vmi_align_munmap
1.48 +0.1 1.55 perf-profile.calltrace.cycles-pp.__entry_text_start.brk
1.02 +0.1 1.08 perf-profile.calltrace.cycles-pp.mas_split_final_node.mas_split.mas_wr_bnode.mas_store_prealloc.vma_complete
0.91 +0.1 0.98 ? 2% perf-profile.calltrace.cycles-pp.mas_store_b_node.mas_wr_bnode.mas_store_prealloc.vma_complete.__split_vma
0.62 +0.1 0.69 perf-profile.calltrace.cycles-pp.mas_wr_walk_index.mas_wr_spanning_store.mas_store_prealloc.do_brk_flags.__do_sys_brk
1.55 +0.1 1.62 perf-profile.calltrace.cycles-pp.perf_iterate_sb.perf_event_mmap_event.perf_event_mmap.do_brk_flags.__do_sys_brk
1.18 +0.1 1.25 perf-profile.calltrace.cycles-pp.mas_descend_adopt.mas_wmb_replace.mas_split.mas_wr_bnode.mas_store_prealloc
1.65 +0.1 1.74 perf-profile.calltrace.cycles-pp.mast_fill_bnode.mas_split.mas_wr_bnode.mas_store_prealloc.vma_complete
0.72 +0.1 0.82 perf-profile.calltrace.cycles-pp.mas_push_data.mas_split.mas_wr_bnode.mas_store_prealloc.vma_complete
2.28 +0.1 2.38 perf-profile.calltrace.cycles-pp.mas_wmb_replace.mas_spanning_rebalance.mas_wr_spanning_store.mas_store_prealloc.do_brk_flags
2.09 +0.1 2.20 perf-profile.calltrace.cycles-pp.mas_wmb_replace.mas_split.mas_wr_bnode.mas_store_prealloc.vma_complete
2.49 +0.1 2.63 perf-profile.calltrace.cycles-pp.kmem_cache_alloc.vm_area_dup.__split_vma.do_vmi_align_munmap.__do_sys_brk
3.36 +0.1 3.49 perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
14.95 +0.1 15.08 perf-profile.calltrace.cycles-pp.mas_store_prealloc.do_brk_flags.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.89 +0.1 3.03 perf-profile.calltrace.cycles-pp.vm_area_dup.__split_vma.do_vmi_align_munmap.__do_sys_brk.do_syscall_64
3.85 +0.2 4.01 perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.brk
6.96 +0.3 7.29 perf-profile.calltrace.cycles-pp.mas_spanning_rebalance.mas_wr_spanning_store.mas_store_prealloc.do_brk_flags.__do_sys_brk
6.29 +0.5 6.78 ? 2% perf-profile.calltrace.cycles-pp.__unfreeze_partials.rcu_do_batch.rcu_core.__do_softirq.run_ksoftirqd
9.84 +0.5 10.35 perf-profile.calltrace.cycles-pp.mas_wr_spanning_store.mas_store_prealloc.do_brk_flags.__do_sys_brk.do_syscall_64
8.18 +0.5 8.69 perf-profile.calltrace.cycles-pp.mas_split.mas_wr_bnode.mas_store_prealloc.vma_complete.__split_vma
4.09 ? 2% +0.6 4.67 ? 4% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.free_pcppages_bulk.free_unref_page.__unfreeze_partials
4.11 ? 2% +0.6 4.69 ? 4% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.free_pcppages_bulk.free_unref_page.__unfreeze_partials.rcu_do_batch
4.22 ? 2% +0.6 4.81 ? 4% perf-profile.calltrace.cycles-pp.free_pcppages_bulk.free_unref_page.__unfreeze_partials.rcu_do_batch.rcu_core
4.25 ? 2% +0.6 4.84 ? 4% perf-profile.calltrace.cycles-pp.free_unref_page.__unfreeze_partials.rcu_do_batch.rcu_core.__do_softirq
9.74 +0.6 10.34 perf-profile.calltrace.cycles-pp.mas_wr_bnode.mas_store_prealloc.vma_complete.__split_vma.do_vmi_align_munmap
13.31 +0.6 13.92 perf-profile.calltrace.cycles-pp.mas_store_prealloc.vma_complete.__split_vma.do_vmi_align_munmap.__do_sys_brk
0.00 +0.6 0.63 perf-profile.calltrace.cycles-pp.kmem_cache_alloc.mas_alloc_nodes.mas_preallocate.do_brk_flags.__do_sys_brk
13.46 +0.6 14.10 perf-profile.calltrace.cycles-pp.vma_complete.__split_vma.do_vmi_align_munmap.__do_sys_brk.do_syscall_64
22.96 +0.7 23.64 perf-profile.calltrace.cycles-pp.__split_vma.do_vmi_align_munmap.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe
36.73 -1.0 35.71 perf-profile.children.cycles-pp.do_vmi_align_munmap
27.38 -1.0 26.40 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
27.64 -1.0 26.67 perf-profile.children.cycles-pp._raw_spin_lock_irqsave
2.68 -0.7 1.94 perf-profile.children.cycles-pp.mas_wr_store_entry
5.80 -0.7 5.06 perf-profile.children.cycles-pp.mas_store_gfp
14.46 -0.7 13.77 perf-profile.children.cycles-pp.mas_alloc_nodes
7.52 -0.5 7.06 perf-profile.children.cycles-pp.mas_destroy
3.66 -0.4 3.25 perf-profile.children.cycles-pp.kmem_cache_free_bulk
0.80 -0.4 0.43 ? 2% perf-profile.children.cycles-pp.free_pgtables
3.45 -0.4 3.09 perf-profile.children.cycles-pp.unmap_region
1.85 -0.3 1.57 perf-profile.children.cycles-pp.mas_find
1.48 -0.3 1.22 perf-profile.children.cycles-pp.mas_walk
1.49 -0.2 1.25 perf-profile.children.cycles-pp.mtree_range_walk
1.09 -0.2 0.85 perf-profile.children.cycles-pp.mas_next_slot
2.68 -0.1 2.55 perf-profile.children.cycles-pp.kmem_cache_free
4.33 -0.1 4.20 perf-profile.children.cycles-pp.kmem_cache_alloc
1.90 -0.1 1.79 ? 2% perf-profile.children.cycles-pp.mas_pop_node
0.22 ? 2% -0.1 0.17 ? 3% perf-profile.children.cycles-pp.remove_vma
0.22 ? 2% -0.0 0.17 ? 3% perf-profile.children.cycles-pp.tlb_gather_mmu
0.30 ? 2% -0.0 0.26 ? 3% perf-profile.children.cycles-pp.__pte_offset_map_lock
0.13 ? 3% -0.0 0.11 ? 4% perf-profile.children.cycles-pp.downgrade_write
0.20 ? 3% -0.0 0.18 ? 3% perf-profile.children.cycles-pp.mas_nomem
0.08 ? 3% -0.0 0.06 ? 5% perf-profile.children.cycles-pp.mas_node_count_gfp
0.14 ? 2% +0.0 0.16 ? 4% perf-profile.children.cycles-pp.discard_slab
0.48 +0.0 0.51 perf-profile.children.cycles-pp.rcu_nocb_try_bypass
0.58 +0.0 0.61 perf-profile.children.cycles-pp.rcu_segcblist_enqueue
0.10 ? 6% +0.0 0.12 ? 3% perf-profile.children.cycles-pp.unmap_single_vma
0.74 +0.0 0.78 perf-profile.children.cycles-pp.mas_wr_walk
0.66 +0.0 0.70 perf-profile.children.cycles-pp.vma_prepare
0.86 +0.0 0.89 ? 2% perf-profile.children.cycles-pp.mas_prev_slot
1.11 +0.0 1.15 perf-profile.children.cycles-pp.perf_event_mmap_output
0.11 ? 3% +0.0 0.15 ? 4% perf-profile.children.cycles-pp.anon_vma_clone
0.62 +0.0 0.67 perf-profile.children.cycles-pp.get_unmapped_area
1.22 +0.0 1.26 perf-profile.children.cycles-pp.vm_area_free_rcu_cb
0.71 +0.0 0.76 perf-profile.children.cycles-pp.check_brk_limits
0.94 +0.1 1.00 perf-profile.children.cycles-pp.__cond_resched
0.76 +0.1 0.82 perf-profile.children.cycles-pp.zap_pmd_range
1.02 +0.1 1.09 perf-profile.children.cycles-pp.mas_split_final_node
1.02 +0.1 1.08 perf-profile.children.cycles-pp.memcpy_orig
0.63 +0.1 0.69 perf-profile.children.cycles-pp.mas_wr_walk_index
0.29 ? 2% +0.1 0.36 ? 3% perf-profile.children.cycles-pp.mas_next_sibling
1.56 +0.1 1.63 perf-profile.children.cycles-pp.perf_iterate_sb
1.87 +0.1 1.94 perf-profile.children.cycles-pp.__entry_text_start
1.66 +0.1 1.75 perf-profile.children.cycles-pp.mast_fill_bnode
0.73 +0.1 0.83 perf-profile.children.cycles-pp.mas_push_data
1.63 +0.1 1.74 perf-profile.children.cycles-pp.rcu_cblist_dequeue
2.27 +0.1 2.38 perf-profile.children.cycles-pp.mas_descend_adopt
3.42 +0.1 3.53 perf-profile.children.cycles-pp.mab_mas_cp
1.85 +0.1 1.97 perf-profile.children.cycles-pp.mas_store_b_node
2.51 +0.1 2.63 perf-profile.children.cycles-pp.__call_rcu_common
3.38 +0.1 3.52 perf-profile.children.cycles-pp.syscall_exit_to_user_mode
2.90 +0.1 3.04 perf-profile.children.cycles-pp.vm_area_dup
2.43 +0.2 2.58 perf-profile.children.cycles-pp.mas_mab_cp
3.88 +0.2 4.05 perf-profile.children.cycles-pp.syscall_return_via_sysret
4.40 +0.2 4.62 perf-profile.children.cycles-pp.mas_wmb_replace
13.50 +0.3 13.77 perf-profile.children.cycles-pp.__unfreeze_partials
7.00 +0.3 7.32 perf-profile.children.cycles-pp.mas_spanning_rebalance
28.03 +0.5 28.49 perf-profile.children.cycles-pp.rcu_core
9.86 +0.5 10.37 perf-profile.children.cycles-pp.mas_wr_spanning_store
8.26 +0.5 8.77 perf-profile.children.cycles-pp.mas_split
12.98 +0.6 13.62 perf-profile.children.cycles-pp.mas_wr_bnode
13.58 +0.7 14.23 perf-profile.children.cycles-pp.vma_complete
23.02 +0.7 23.70 perf-profile.children.cycles-pp.__split_vma
28.32 +0.7 29.06 perf-profile.children.cycles-pp.mas_store_prealloc
27.38 -1.0 26.40 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
0.76 -0.2 0.53 perf-profile.self.cycles-pp.mas_next_slot
1.31 -0.2 1.09 perf-profile.self.cycles-pp.mtree_range_walk
1.54 -0.1 1.40 perf-profile.self.cycles-pp.kmem_cache_alloc
2.27 -0.1 2.13 perf-profile.self.cycles-pp.kmem_cache_free
1.70 -0.1 1.58 perf-profile.self.cycles-pp.mas_pop_node
0.48 -0.1 0.40 ? 2% perf-profile.self.cycles-pp.unmap_page_range
0.52 -0.1 0.45 perf-profile.self.cycles-pp.mas_alloc_nodes
0.16 ? 3% -0.1 0.11 ? 3% perf-profile.self.cycles-pp.free_pgtables
0.31 ? 2% -0.0 0.26 ? 2% perf-profile.self.cycles-pp.mas_destroy
0.11 ? 4% -0.0 0.07 ? 7% perf-profile.self.cycles-pp.remove_vma
0.19 ? 2% -0.0 0.15 ? 2% perf-profile.self.cycles-pp.tlb_gather_mmu
0.75 -0.0 0.71 perf-profile.self.cycles-pp.mas_wr_store_entry
0.82 -0.0 0.78 perf-profile.self.cycles-pp.___slab_alloc
0.12 ? 4% -0.0 0.09 ? 3% perf-profile.self.cycles-pp.__pte_offset_map_lock
0.12 ? 3% -0.0 0.10 ? 5% perf-profile.self.cycles-pp.downgrade_write
0.17 ? 2% -0.0 0.15 ? 2% perf-profile.self.cycles-pp.unmap_vmas
0.24 -0.0 0.22 ? 2% perf-profile.self.cycles-pp.unmap_region
0.08 ? 6% -0.0 0.06 ? 7% perf-profile.self.cycles-pp.can_vma_merge_after
0.18 ? 2% +0.0 0.20 ? 3% perf-profile.self.cycles-pp.percpu_counter_add_batch
0.13 ? 3% +0.0 0.15 ? 3% perf-profile.self.cycles-pp.get_unmapped_area
0.08 ? 5% +0.0 0.11 ? 4% perf-profile.self.cycles-pp.unmap_single_vma
0.17 ? 2% +0.0 0.19 ? 3% perf-profile.self.cycles-pp.zap_pmd_range
0.36 ? 2% +0.0 0.39 ? 2% perf-profile.self.cycles-pp.mas_push_data
0.79 +0.0 0.82 perf-profile.self.cycles-pp.do_vmi_align_munmap
0.99 ? 2% +0.0 1.03 perf-profile.self.cycles-pp.perf_event_mmap_output
0.08 ? 5% +0.0 0.12 ? 4% perf-profile.self.cycles-pp.anon_vma_clone
0.61 +0.0 0.65 perf-profile.self.cycles-pp.__cond_resched
0.83 +0.0 0.87 perf-profile.self.cycles-pp.mast_fill_bnode
0.20 ? 4% +0.0 0.24 ? 2% perf-profile.self.cycles-pp.vma_complete
1.22 +0.0 1.26 perf-profile.self.cycles-pp.mas_wr_spanning_store
0.88 +0.0 0.93 perf-profile.self.cycles-pp.memcpy_orig
1.26 +0.0 1.30 perf-profile.self.cycles-pp.__call_rcu_common
0.21 ? 2% +0.0 0.26 ? 2% perf-profile.self.cycles-pp.mas_next_sibling
1.12 +0.1 1.18 perf-profile.self.cycles-pp.kmem_cache_free_bulk
0.78 +0.1 0.83 perf-profile.self.cycles-pp.__kmem_cache_alloc_bulk
0.79 +0.1 0.85 perf-profile.self.cycles-pp.__do_sys_brk
0.56 +0.1 0.61 perf-profile.self.cycles-pp.mas_wr_walk_index
0.51 ? 2% +0.1 0.57 perf-profile.self.cycles-pp.__split_vma
1.65 +0.1 1.72 perf-profile.self.cycles-pp.__entry_text_start
1.32 +0.1 1.39 perf-profile.self.cycles-pp.mas_spanning_rebalance
2.30 +0.1 2.37 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
2.04 +0.1 2.12 perf-profile.self.cycles-pp.mas_descend_adopt
1.77 +0.1 1.86 perf-profile.self.cycles-pp.mas_mab_cp
1.61 +0.1 1.71 perf-profile.self.cycles-pp.rcu_cblist_dequeue
3.13 +0.1 3.27 perf-profile.self.cycles-pp.syscall_exit_to_user_mode
3.88 +0.2 4.04 perf-profile.self.cycles-pp.syscall_return_via_sysret
4.75 +0.2 4.94 perf-profile.self.cycles-pp.__slab_free
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