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Message-ID: <ZrMMJfe9aXSWxJz6@xsang-OptiPlex-9020>
Date: Wed, 7 Aug 2024 13:54:45 +0800
From: Oliver Sang <oliver.sang@...el.com>
To: Pedro Falcato <pedro.falcato@...il.com>
CC: Linus Torvalds <torvalds@...ux-foundation.org>, Jeff Xu
<jeffxu@...gle.com>, Michael Ellerman <mpe@...erman.id.au>, Nicholas Piggin
<npiggin@...il.com>, Christophe Leroy <christophe.leroy@...roup.eu>, Jeff Xu
<jeffxu@...omium.org>, <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
<linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>,
Kees Cook <keescook@...omium.org>, "Liam R. Howlett"
<Liam.Howlett@...cle.com>, Dave Hansen <dave.hansen@...el.com>, "Greg
Kroah-Hartman" <gregkh@...uxfoundation.org>, Guenter Roeck
<groeck@...omium.org>, Jann Horn <jannh@...gle.com>, Jonathan Corbet
<corbet@....net>, Jorge Lucangeli Obes <jorgelo@...omium.org>, Matthew Wilcox
<willy@...radead.org>, Muhammad Usama Anjum <usama.anjum@...labora.com>,
Stephen Röttger <sroettger@...gle.com>, Suren Baghdasaryan
<surenb@...gle.com>, Amer Al Shanawany <amer.shanawany@...il.com>, "Javier
Carrasco" <javier.carrasco.cruz@...il.com>, Shuah Khan <shuah@...nel.org>,
<linux-api@...r.kernel.org>, <linux-mm@...ck.org>, <ying.huang@...el.com>,
<feng.tang@...el.com>, <fengwei.yin@...el.com>, <oliver.sang@...el.com>
Subject: Re: [linus:master] [mseal] 8be7258aad:
stress-ng.pagemove.page_remaps_per_sec -4.4% regression
hi, Pedro,
On Tue, Aug 06, 2024 at 10:37:08PM +0100, Pedro Falcato wrote:
> On Tue, Aug 6, 2024 at 7:05 AM Oliver Sang <oliver.sang@...el.com> wrote:
> >
> > hi, Linus,
> >
> > On Mon, Aug 05, 2024 at 12:33:58PM -0700, Linus Torvalds wrote:
> > > On Mon, 5 Aug 2024 at 11:55, Linus Torvalds
> > > <torvalds@...ux-foundation.org> wrote:
> > > >
> > > > So please consider this a "maybe something like this" patch, but that
> > > > 'arch_unmap()' really is pretty nasty
> > >
> > > Actually, the whole powerpc vdso code confused me. It's not the vvar
> > > thing that wants this close thing, it's the other ones that have the
> > > remap thing.
> > >
> > > .. and there were two of those error cases that needed to reset the
> > > vdso pointer.
> > >
> > > That all shows just how carefully I was reading this code.
> > >
> > > New version - still untested, but now I've read through it one more
> > > time - attached.
> >
> > we tested this version by applying it directly upon 8be7258aad, but seems it
> > have little impact to performance. still similar regression if comparing to
> > ff388fe5c4.
>
> Hi,
>
> I've just sent out a patch set[1] that should alleviate (or hopefully
> totally fix) these performance regressions. It'd be great if you could
> test it.
yes, your patch set totally fixes the regression.
our bot automatically fetch the patch set and apply it upon mainline
d4560686726f7 as below.
d58de4f958df2 (linux-review/Pedro-Falcato/mm-Move-can_modify_vma-to-mm-internal-h/20240807-054658) mm: Remove can_modify_mm()
32668c3efc23f mseal: Replace can_modify_mm_madv with a vma variant
5c3f48cf634c9 mseal: Fix is_madv_discard()
8cde2d71bd0f8 mm/mremap: Replace can_modify_mm with can_modify_vma
cc3471461a854 mm/mprotect: Replace can_modify_mm with can_modify_vma
abff8a9b6023e mm/munmap: Replace can_modify_mm with can_modify_vma
c1bf07aa19804 mm: Move can_modify_vma to mm/internal.h
d4560686726f7 (HEAD, linus/master) Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
I tested patch set tip d58de4f958df2 as well as d4560686726f7, below is the
results combining with 8be7258aad and its parent.
data from 8be7258aad and d4560686726f7 are close enough to within the noise.
the patch set tip recover the performance to the level of ff388fe5c4.
=========================================================================================
compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
gcc-12/performance/x86_64-rhel-8.3/100%/debian-12-x86_64-20240206.cgz/lkp-icl-2sp7/pagemove/stress-ng/60s
commit:
ff388fe5c4 ("mseal: wire up mseal syscall")
8be7258aad ("mseal: add mseal syscall")
d456068672 ("Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost")
d58de4f958 ("mm: Remove can_modify_mm()")
ff388fe5c481d39c 8be7258aad44b5e25977a98db13 d4560686726f7a357922f300fc8 d58de4f958df225c04fd490fe2d
---------------- --------------------------- --------------------------- ---------------------------
%stddev %change %stddev %change %stddev %change %stddev
\ | \ | \ | \
44.92 -0.4% 44.76 -5.1% 42.62 -5.7% 42.37 boot-time.boot
33.12 -0.4% 33.00 -7.0% 30.81 -7.0% 30.81 boot-time.dhcp
2631 -0.4% 2620 -5.6% 2483 -6.2% 2468 boot-time.idle
4958 +1.3% 5024 +1.2% 5017 +0.0% 4960 time.percent_of_cpu_this_job_got
2916 +1.5% 2960 +1.4% 2956 +0.1% 2919 time.system_time
65.85 -7.0% 61.27 -6.8% 61.40 -3.4% 63.64 time.user_time
17869 ± 8% -5.6% 16869 ± 28% -24.5% 13488 ± 25% -3.5% 17240 ± 9% numa-vmstat.node0.nr_slab_reclaimable
5182 ± 29% +19.8% 6207 ± 75% +80.1% 9334 ± 36% +7.9% 5591 ± 28% numa-vmstat.node1.nr_slab_reclaimable
10153 ±170% +1041.4% 115893 ±214% +2787.4% 293183 ± 97% +371.7% 47894 ± 90% numa-vmstat.node1.nr_unevictable
10153 ±170% +1041.4% 115893 ±214% +2787.4% 293183 ± 97% +371.7% 47894 ± 90% numa-vmstat.node1.nr_zone_unevictable
71475 ± 8% -5.6% 67478 ± 28% -24.5% 53952 ± 25% -3.5% 68960 ± 9% numa-meminfo.node0.KReclaimable
71475 ± 8% -5.6% 67478 ± 28% -24.5% 53952 ± 25% -3.5% 68960 ± 9% numa-meminfo.node0.SReclaimable
20732 ± 29% +19.8% 24839 ± 75% +80.1% 37346 ± 36% +7.9% 22364 ± 28% numa-meminfo.node1.KReclaimable
20732 ± 29% +19.8% 24839 ± 75% +80.1% 37346 ± 36% +7.9% 22364 ± 28% numa-meminfo.node1.SReclaimable
40615 ±170% +1041.4% 463573 ±214% +2787.4% 1172733 ± 97% +371.7% 191576 ± 90% numa-meminfo.node1.Unevictable
23051 +0.1% 23079 -1.0% 22823 -1.0% 22831 proc-vmstat.nr_slab_reclaimable
41535129 -4.5% 39669773 -4.9% 39501465 -0.3% 41415171 proc-vmstat.numa_hit
41465484 -4.5% 39602956 -4.9% 39434855 -0.3% 41347677 proc-vmstat.numa_local
77303973 -4.6% 73780662 -5.0% 73449965 -0.3% 77049179 proc-vmstat.pgalloc_normal
77022096 -4.6% 73502058 -5.0% 73168463 -0.3% 76769054 proc-vmstat.pgfree
18381956 -4.9% 17473438 -5.1% 17450543 -0.4% 18316849 stress-ng.pagemove.ops
306349 -4.9% 291188 -5.1% 290820 -0.4% 305268 stress-ng.pagemove.ops_per_sec
209930 -6.2% 196996 ± 2% -5.4% 198614 -0.5% 208922 stress-ng.pagemove.page_remaps_per_sec
4958 +1.3% 5024 +1.2% 5017 +0.0% 4960 stress-ng.time.percent_of_cpu_this_job_got
2916 +1.5% 2960 +1.4% 2956 +0.1% 2919 stress-ng.time.system_time
3.337e+10 ± 4% +2.3% 3.414e+10 ± 3% +5.0% 3.503e+10 +1.2% 3.376e+10 perf-stat.i.branch-instructions
1.13 -2.1% 1.10 -2.3% 1.10 +0.1% 1.13 perf-stat.i.cpi
1.695e+11 ± 4% +1.1% 1.715e+11 ± 3% +3.8% 1.761e+11 +1.2% 1.715e+11 perf-stat.i.instructions
0.89 +2.2% 0.91 +2.1% 0.91 -0.4% 0.89 perf-stat.i.ipc
1.04 -7.2% 0.97 -7.2% 0.97 -0.2% 1.04 perf-stat.overall.MPKI
1.13 -2.3% 1.10 -2.1% 1.10 +0.3% 1.13 perf-stat.overall.cpi
1082 +5.4% 1140 +5.5% 1141 +0.5% 1087 perf-stat.overall.cycles-between-cache-misses
0.89 +2.3% 0.91 +2.1% 0.91 -0.3% 0.88 perf-stat.overall.ipc
3.284e+10 ± 4% +2.4% 3.362e+10 ± 2% +4.8% 3.443e+10 +1.1% 3.32e+10 perf-stat.ps.branch-instructions
192.79 -3.9% 185.32 ± 2% -1.7% 189.49 +0.2% 193.10 perf-stat.ps.cpu-migrations
1.669e+11 ± 4% +1.2% 1.689e+11 ± 2% +3.7% 1.731e+11 +1.1% 1.687e+11 perf-stat.ps.instructions
1.048e+13 +2.8% 1.078e+13 +2.1% 1.07e+13 -0.6% 1.042e+13 perf-stat.total.instructions
74.97 -1.9 73.07 -1.7 73.32 +0.4 75.38 perf-profile.calltrace.cycles-pp.move_vma.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe.mremap
36.79 -1.6 35.22 -1.4 35.36 +0.3 37.08 perf-profile.calltrace.cycles-pp.do_vmi_align_munmap.do_vmi_munmap.move_vma.__do_sys_mremap.do_syscall_64
24.98 -1.3 23.64 -1.3 23.73 +0.0 24.99 perf-profile.calltrace.cycles-pp.copy_vma.move_vma.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe
19.91 -1.1 18.85 -1.2 18.69 -0.2 19.72 perf-profile.calltrace.cycles-pp.__split_vma.do_vmi_align_munmap.do_vmi_munmap.move_vma.__do_sys_mremap
10.70 ± 3% -0.9 9.84 ± 3% -0.9 9.78 ± 2% -0.4 10.33 ± 3% perf-profile.calltrace.cycles-pp.kthread.ret_from_fork.ret_from_fork_asm
10.70 ± 3% -0.9 9.84 ± 3% -0.9 9.78 ± 2% -0.4 10.33 ± 3% perf-profile.calltrace.cycles-pp.ret_from_fork.ret_from_fork_asm
10.70 ± 3% -0.9 9.84 ± 3% -0.9 9.78 ± 2% -0.4 10.33 ± 3% perf-profile.calltrace.cycles-pp.ret_from_fork_asm
10.64 ± 3% -0.9 9.79 ± 3% -0.9 9.73 ± 2% -0.4 10.29 ± 3% perf-profile.calltrace.cycles-pp.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
10.63 ± 3% -0.9 9.78 ± 3% -0.9 9.72 ± 2% -0.4 10.28 ± 3% perf-profile.calltrace.cycles-pp.handle_softirqs.run_ksoftirqd.smpboot_thread_fn.kthread.ret_from_fork
10.63 ± 3% -0.9 9.78 ± 3% -0.9 9.72 ± 2% -0.4 10.28 ± 3% perf-profile.calltrace.cycles-pp.run_ksoftirqd.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
10.63 ± 3% -0.9 9.78 ± 3% -0.9 9.72 ± 2% -0.4 10.28 ± 3% perf-profile.calltrace.cycles-pp.rcu_core.handle_softirqs.run_ksoftirqd.smpboot_thread_fn.kthread
10.59 ± 3% -0.8 9.74 ± 3% -0.9 9.68 ± 2% -0.4 10.24 ± 3% perf-profile.calltrace.cycles-pp.rcu_do_batch.rcu_core.handle_softirqs.run_ksoftirqd.smpboot_thread_fn
14.77 -0.8 14.00 -0.7 14.11 +0.0 14.80 perf-profile.calltrace.cycles-pp.vma_merge.copy_vma.move_vma.__do_sys_mremap.do_syscall_64
1.48 -0.5 0.99 -0.5 0.99 +0.0 1.52 perf-profile.calltrace.cycles-pp.mas_find.do_vmi_munmap.move_vma.__do_sys_mremap.do_syscall_64
5.95 ± 3% -0.5 5.47 ± 3% -0.5 5.44 ± 2% -0.2 5.73 ± 3% perf-profile.calltrace.cycles-pp.kmem_cache_free.rcu_do_batch.rcu_core.handle_softirqs.run_ksoftirqd
7.88 -0.4 7.48 -0.3 7.57 +0.1 7.97 perf-profile.calltrace.cycles-pp.move_page_tables.move_vma.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe
4.62 ± 3% -0.4 4.25 ± 3% -0.4 4.20 ± 2% -0.2 4.42 ± 3% perf-profile.calltrace.cycles-pp.__slab_free.kmem_cache_free.rcu_do_batch.rcu_core.handle_softirqs
6.72 -0.4 6.36 -0.4 6.33 -0.1 6.66 perf-profile.calltrace.cycles-pp.vm_area_dup.__split_vma.do_vmi_align_munmap.do_vmi_munmap.move_vma
6.15 -0.3 5.82 -0.3 5.86 +0.0 6.16 perf-profile.calltrace.cycles-pp.vma_complete.__split_vma.do_vmi_align_munmap.do_vmi_munmap.move_vma
6.11 -0.3 5.78 -0.3 5.77 -0.0 6.07 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_noprof.vm_area_dup.__split_vma.do_vmi_align_munmap.do_vmi_munmap
5.78 -0.3 5.49 -0.2 5.57 +0.1 5.85 perf-profile.calltrace.cycles-pp.move_ptes.move_page_tables.move_vma.__do_sys_mremap.do_syscall_64
5.54 -0.3 5.25 -0.3 5.28 +0.0 5.56 perf-profile.calltrace.cycles-pp.mas_store_prealloc.vma_complete.__split_vma.do_vmi_align_munmap.do_vmi_munmap
5.56 -0.3 5.28 -0.3 5.28 -0.0 5.54 perf-profile.calltrace.cycles-pp.mas_store_prealloc.vma_merge.copy_vma.move_vma.__do_sys_mremap
5.19 -0.3 4.92 -0.2 4.95 +0.0 5.21 perf-profile.calltrace.cycles-pp.mas_wr_store_entry.mas_store_prealloc.vma_complete.__split_vma.do_vmi_align_munmap
5.20 -0.3 4.94 -0.3 4.95 -0.0 5.18 perf-profile.calltrace.cycles-pp.mas_wr_store_entry.mas_store_prealloc.vma_merge.copy_vma.move_vma
3.20 ± 4% -0.3 2.94 ± 3% -0.3 2.93 ± 2% -0.1 3.11 ± 3% perf-profile.calltrace.cycles-pp.vm_area_free_rcu_cb.rcu_do_batch.rcu_core.handle_softirqs.run_ksoftirqd
4.09 -0.2 3.85 -0.3 3.82 -0.1 4.03 perf-profile.calltrace.cycles-pp.vm_area_dup.copy_vma.move_vma.__do_sys_mremap.do_syscall_64
4.68 -0.2 4.45 -0.2 4.46 -0.0 4.67 perf-profile.calltrace.cycles-pp.mas_wr_node_store.mas_wr_store_entry.mas_store_prealloc.vma_merge.copy_vma
2.63 ± 3% -0.2 2.42 ± 3% -0.2 2.43 ± 2% -0.1 2.57 ± 3% perf-profile.calltrace.cycles-pp.kmem_cache_free.vm_area_free_rcu_cb.rcu_do_batch.rcu_core.handle_softirqs
2.36 ± 2% -0.2 2.16 ± 4% -0.3 2.04 ± 14% -0.1 2.28 ± 3% perf-profile.calltrace.cycles-pp.__memcpy.mas_wr_node_store.mas_wr_store_entry.mas_store_prealloc.vma_complete
3.56 -0.2 3.36 -0.2 3.34 -0.0 3.52 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_noprof.vm_area_dup.copy_vma.move_vma.__do_sys_mremap
4.00 -0.2 3.81 -0.1 3.87 ± 2% +0.1 4.06 perf-profile.calltrace.cycles-pp.mas_wr_node_store.mas_wr_store_entry.mas_store_prealloc.vma_complete.__split_vma
1.35 -0.2 1.16 -0.2 1.16 +0.0 1.36 perf-profile.calltrace.cycles-pp.mas_find.do_vmi_munmap.do_munmap.mremap_to.__do_sys_mremap
3.40 -0.2 3.22 -0.2 3.24 +0.0 3.41 perf-profile.calltrace.cycles-pp.flush_tlb_mm_range.move_ptes.move_page_tables.move_vma.__do_sys_mremap
2.22 -0.2 2.06 -0.2 2.07 +0.0 2.24 perf-profile.calltrace.cycles-pp.find_vma_prev.copy_vma.move_vma.__do_sys_mremap.do_syscall_64
0.96 -0.2 0.82 -0.2 0.81 +0.0 0.97 perf-profile.calltrace.cycles-pp.mas_walk.mas_find.do_vmi_munmap.do_munmap.mremap_to
3.25 -0.1 3.10 -0.1 3.14 +0.0 3.30 perf-profile.calltrace.cycles-pp.mas_store_gfp.do_vmi_align_munmap.do_vmi_munmap.move_vma.__do_sys_mremap
1.81 ± 4% -0.1 1.67 ± 3% -0.2 1.64 ± 2% -0.1 1.74 ± 3% perf-profile.calltrace.cycles-pp.__slab_free.kmem_cache_free.vm_area_free_rcu_cb.rcu_do_batch.rcu_core
1.97 ± 3% -0.1 1.83 ± 3% -0.6 1.41 ± 3% -0.5 1.50 ± 2% perf-profile.calltrace.cycles-pp.mod_objcg_state.__memcg_slab_post_alloc_hook.kmem_cache_alloc_noprof.vm_area_dup.__split_vma
2.26 -0.1 2.12 -0.2 2.05 -0.1 2.16 perf-profile.calltrace.cycles-pp.mas_preallocate.__split_vma.do_vmi_align_munmap.do_vmi_munmap.move_vma
3.10 -0.1 2.96 +0.3 3.38 +0.5 3.60 perf-profile.calltrace.cycles-pp.__memcg_slab_post_alloc_hook.kmem_cache_alloc_noprof.vm_area_dup.__split_vma.do_vmi_align_munmap
3.13 -0.1 2.99 -0.1 3.06 +0.1 3.23 perf-profile.calltrace.cycles-pp.unmap_vmas.unmap_region.do_vmi_align_munmap.do_vmi_munmap.move_vma
2.97 -0.1 2.85 -0.2 2.75 ± 2% -0.0 2.94 ± 2% perf-profile.calltrace.cycles-pp.anon_vma_clone.__split_vma.do_vmi_align_munmap.do_vmi_munmap.move_vma
2.05 -0.1 1.93 -0.1 1.98 -0.1 1.99 perf-profile.calltrace.cycles-pp.mas_preallocate.vma_merge.copy_vma.move_vma.__do_sys_mremap
8.26 -0.1 8.14 +0.2 8.45 +0.5 8.78 perf-profile.calltrace.cycles-pp.unmap_region.do_vmi_align_munmap.do_vmi_munmap.move_vma.__do_sys_mremap
2.45 -0.1 2.34 -0.1 2.34 +0.0 2.46 perf-profile.calltrace.cycles-pp.flush_tlb_func.flush_tlb_mm_range.move_ptes.move_page_tables.move_vma
2.43 -0.1 2.32 -0.0 2.39 +0.1 2.55 perf-profile.calltrace.cycles-pp.unmap_page_range.unmap_vmas.unmap_region.do_vmi_align_munmap.do_vmi_munmap
1.75 ± 2% -0.1 1.64 ± 3% -0.1 1.64 ± 4% +0.0 1.77 ± 4% perf-profile.calltrace.cycles-pp.vma_prepare.vma_merge.copy_vma.move_vma.__do_sys_mremap
0.54 -0.1 0.44 ± 37% -0.0 0.51 +0.0 0.55 perf-profile.calltrace.cycles-pp.mas_find.find_vma_prev.copy_vma.move_vma.__do_sys_mremap
1.27 ± 2% -0.1 1.16 ± 4% -0.1 1.14 ± 6% -0.0 1.23 ± 4% perf-profile.calltrace.cycles-pp.__memcpy.mas_wr_node_store.mas_wr_store_entry.mas_store_prealloc.vma_merge
1.32 ± 3% -0.1 1.22 ± 3% -0.1 1.20 ± 2% -0.0 1.28 ± 3% perf-profile.calltrace.cycles-pp.rcu_cblist_dequeue.rcu_do_batch.rcu_core.handle_softirqs.run_ksoftirqd
2.21 -0.1 2.11 -0.1 2.11 +0.0 2.23 perf-profile.calltrace.cycles-pp.native_flush_tlb_one_user.flush_tlb_func.flush_tlb_mm_range.move_ptes.move_page_tables
1.85 -0.1 1.76 -0.1 1.78 +0.0 1.87 perf-profile.calltrace.cycles-pp.vma_link.copy_vma.move_vma.__do_sys_mremap.do_syscall_64
2.14 ± 2% -0.1 2.05 ± 2% -0.1 2.00 ± 2% +0.0 2.14 ± 2% perf-profile.calltrace.cycles-pp.kmem_cache_alloc_noprof.anon_vma_clone.__split_vma.do_vmi_align_munmap.do_vmi_munmap
1.79 ± 2% -0.1 1.70 +0.1 1.93 +0.3 2.06 perf-profile.calltrace.cycles-pp.__memcg_slab_post_alloc_hook.kmem_cache_alloc_noprof.vm_area_dup.copy_vma.move_vma
1.40 -0.1 1.31 -0.1 1.27 -0.1 1.34 perf-profile.calltrace.cycles-pp.mas_alloc_nodes.mas_preallocate.__split_vma.do_vmi_align_munmap.do_vmi_munmap
1.39 -0.1 1.30 -0.1 1.34 -0.1 1.33 perf-profile.calltrace.cycles-pp.mas_alloc_nodes.mas_preallocate.vma_merge.copy_vma.move_vma
1.24 -0.1 1.16 -0.1 1.13 -0.1 1.19 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_noprof.mas_alloc_nodes.mas_preallocate.__split_vma.do_vmi_align_munmap
0.94 -0.1 0.86 -0.1 0.86 +0.0 0.96 perf-profile.calltrace.cycles-pp.mas_walk.mas_find.do_vmi_munmap.move_vma.__do_sys_mremap
1.23 -0.1 1.15 -0.0 1.18 -0.1 1.18 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_noprof.mas_alloc_nodes.mas_preallocate.vma_merge.copy_vma
1.54 -0.1 1.46 -0.0 1.50 +0.1 1.60 perf-profile.calltrace.cycles-pp.zap_pmd_range.unmap_page_range.unmap_vmas.unmap_region.do_vmi_align_munmap
0.73 -0.1 0.67 -0.1 0.67 +0.0 0.74 perf-profile.calltrace.cycles-pp.mas_walk.find_vma_prev.copy_vma.move_vma.__do_sys_mremap
1.15 -0.1 1.09 -0.1 1.08 -0.0 1.13 perf-profile.calltrace.cycles-pp.___slab_alloc.kmem_cache_alloc_noprof.vm_area_dup.__split_vma.do_vmi_align_munmap
0.60 ± 2% -0.1 0.54 -0.0 0.56 -0.0 0.59 perf-profile.calltrace.cycles-pp.security_mmap_addr.__get_unmapped_area.mremap_to.__do_sys_mremap.do_syscall_64
1.27 -0.1 1.21 -0.0 1.22 +0.0 1.30 perf-profile.calltrace.cycles-pp.mas_wr_store_entry.mas_store_gfp.do_vmi_align_munmap.do_vmi_munmap.move_vma
38.74 -0.1 38.68 +0.1 38.80 +0.3 39.06 perf-profile.calltrace.cycles-pp.do_vmi_munmap.move_vma.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.38 ± 4% -0.1 1.32 ± 2% -0.2 1.20 ± 3% -0.1 1.27 ± 2% perf-profile.calltrace.cycles-pp.obj_cgroup_charge.__memcg_slab_post_alloc_hook.kmem_cache_alloc_noprof.vm_area_dup.__split_vma
0.72 -0.1 0.66 -0.1 0.66 +0.0 0.72 perf-profile.calltrace.cycles-pp.mas_prev.vma_merge.copy_vma.move_vma.__do_sys_mremap
0.70 ± 2% -0.1 0.64 ± 3% +0.1 0.80 ± 3% +0.2 0.85 ± 3% perf-profile.calltrace.cycles-pp.mod_objcg_state.__memcg_slab_post_alloc_hook.kmem_cache_alloc_noprof.vm_area_dup.copy_vma
0.79 -0.1 0.73 -0.1 0.73 +0.0 0.79 perf-profile.calltrace.cycles-pp.___slab_alloc.kmem_cache_alloc_noprof.mas_alloc_nodes.mas_preallocate.__split_vma
0.80 ± 2% -0.1 0.75 -0.1 0.72 ± 3% -0.0 0.77 ± 2% perf-profile.calltrace.cycles-pp.__call_rcu_common.mas_wr_node_store.mas_wr_store_entry.mas_store_prealloc.vma_merge
0.78 -0.1 0.72 -0.0 0.73 +0.0 0.78 perf-profile.calltrace.cycles-pp.___slab_alloc.kmem_cache_alloc_noprof.mas_alloc_nodes.mas_preallocate.vma_merge
1.02 -0.1 0.96 +0.0 1.02 +0.1 1.09 perf-profile.calltrace.cycles-pp.zap_pte_range.zap_pmd_range.unmap_page_range.unmap_vmas.unmap_region
1.63 -0.1 1.58 -0.1 1.58 +0.0 1.64 perf-profile.calltrace.cycles-pp.__get_unmapped_area.mremap_to.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.62 -0.0 0.58 -0.1 0.57 +0.0 0.63 perf-profile.calltrace.cycles-pp.mas_prev_setup.mas_prev.vma_merge.copy_vma.move_vma
0.60 ± 3% -0.0 0.56 ± 3% -0.0 0.59 ± 3% +0.0 0.63 ± 3% perf-profile.calltrace.cycles-pp.__memcg_slab_free_hook.kmem_cache_free.vm_area_free_rcu_cb.rcu_do_batch.rcu_core
0.67 -0.0 0.62 -0.1 0.59 -0.1 0.61 ± 2% perf-profile.calltrace.cycles-pp.percpu_counter_add_batch.do_vmi_align_munmap.do_vmi_munmap.move_vma.__do_sys_mremap
0.86 -0.0 0.81 -0.0 0.82 +0.0 0.87 perf-profile.calltrace.cycles-pp.mtree_load.vma_to_resize.mremap_to.__do_sys_mremap.do_syscall_64
1.02 -0.0 0.97 -0.0 0.98 +0.0 1.04 perf-profile.calltrace.cycles-pp.vma_to_resize.mremap_to.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.76 ± 2% -0.0 0.71 -0.1 0.71 ± 2% -0.0 0.74 ± 2% perf-profile.calltrace.cycles-pp.allocate_slab.___slab_alloc.kmem_cache_alloc_noprof.vm_area_dup.__split_vma
0.81 -0.0 0.77 -0.1 0.76 -0.0 0.81 perf-profile.calltrace.cycles-pp.mtree_load.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe.mremap
0.70 -0.0 0.66 -0.0 0.66 -0.0 0.69 perf-profile.calltrace.cycles-pp.__call_rcu_common.do_vmi_align_munmap.do_vmi_munmap.move_vma.__do_sys_mremap
0.67 ± 2% -0.0 0.63 -0.0 0.65 ± 2% +0.0 0.68 perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.mremap
0.56 -0.0 0.51 -0.2 0.38 ± 57% +0.0 0.56 perf-profile.calltrace.cycles-pp.mas_walk.mas_prev_setup.mas_prev.vma_merge.copy_vma
0.69 -0.0 0.65 -0.0 0.64 ± 2% -0.0 0.68 perf-profile.calltrace.cycles-pp.___slab_alloc.kmem_cache_alloc_noprof.vm_area_dup.copy_vma.move_vma
0.98 -0.0 0.93 -0.0 0.94 +0.0 0.98 perf-profile.calltrace.cycles-pp.mas_find.do_vmi_align_munmap.do_vmi_munmap.move_vma.__do_sys_mremap
0.77 ± 5% -0.0 0.73 ± 2% -0.1 0.66 ± 4% -0.1 0.70 ± 4% perf-profile.calltrace.cycles-pp.obj_cgroup_charge.__memcg_slab_post_alloc_hook.kmem_cache_alloc_noprof.vm_area_dup.copy_vma
0.78 -0.0 0.74 -0.0 0.75 +0.0 0.79 perf-profile.calltrace.cycles-pp.mas_store_prealloc.vma_link.copy_vma.move_vma.__do_sys_mremap
1.12 -0.0 1.08 -0.1 1.06 +0.0 1.12 perf-profile.calltrace.cycles-pp.clear_bhb_loop.mremap
0.68 -0.0 0.65 -0.0 0.66 +0.0 0.68 perf-profile.calltrace.cycles-pp.mas_preallocate.vma_link.copy_vma.move_vma.__do_sys_mremap
1.00 -0.0 0.97 -0.0 0.96 +0.0 1.02 perf-profile.calltrace.cycles-pp.mt_find.vma_merge.copy_vma.move_vma.__do_sys_mremap
0.62 -0.0 0.59 -0.0 0.59 -0.0 0.62 perf-profile.calltrace.cycles-pp.mas_prev_slot.do_vmi_align_munmap.do_vmi_munmap.move_vma.__do_sys_mremap
0.88 -0.0 0.85 -0.0 0.85 +0.0 0.88 perf-profile.calltrace.cycles-pp.userfaultfd_unmap_complete.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe.mremap
1.15 -0.0 1.12 -0.1 1.08 -0.0 1.13 perf-profile.calltrace.cycles-pp.anon_vma_clone.copy_vma.move_vma.__do_sys_mremap.do_syscall_64
0.60 -0.0 0.57 ± 2% +0.0 0.62 +0.1 0.66 perf-profile.calltrace.cycles-pp.__pte_offset_map_lock.zap_pte_range.zap_pmd_range.unmap_page_range.unmap_vmas
0.59 -0.0 0.56 -0.0 0.56 -0.0 0.57 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.mremap
0.62 ± 2% -0.0 0.59 ± 2% -0.0 0.59 +0.0 0.63 perf-profile.calltrace.cycles-pp.get_old_pud.move_page_tables.move_vma.__do_sys_mremap.do_syscall_64
0.65 -0.0 0.63 -0.0 0.63 +0.0 0.66 perf-profile.calltrace.cycles-pp.mas_update_gap.mas_store_gfp.do_vmi_align_munmap.do_vmi_munmap.move_vma
0.55 -0.0 0.53 +0.0 0.58 +0.1 0.61 perf-profile.calltrace.cycles-pp.__pte_offset_map_lock.move_ptes.move_page_tables.move_vma.__do_sys_mremap
0.74 -0.0 0.72 -0.1 0.68 ± 2% -0.0 0.71 ± 2% perf-profile.calltrace.cycles-pp.kmem_cache_alloc_noprof.anon_vma_clone.copy_vma.move_vma.__do_sys_mremap
0.67 +0.1 0.74 +0.1 0.73 +0.0 0.68 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__madvise
0.76 +0.1 0.84 +0.1 0.82 +0.0 0.78 perf-profile.calltrace.cycles-pp.__madvise
0.66 +0.1 0.74 +0.1 0.73 +0.0 0.67 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__madvise
0.63 +0.1 0.71 +0.1 0.70 +0.0 0.64 perf-profile.calltrace.cycles-pp.__x64_sys_madvise.do_syscall_64.entry_SYSCALL_64_after_hwframe.__madvise
0.62 +0.1 0.70 +0.1 0.69 +0.0 0.64 perf-profile.calltrace.cycles-pp.do_madvise.__x64_sys_madvise.do_syscall_64.entry_SYSCALL_64_after_hwframe.__madvise
3.47 +0.1 3.55 +0.4 3.89 +0.5 3.95 perf-profile.calltrace.cycles-pp.free_pgtables.unmap_region.do_vmi_align_munmap.do_vmi_munmap.move_vma
87.67 +0.8 88.47 +0.9 88.53 +0.3 88.01 perf-profile.calltrace.cycles-pp.mremap
0.00 +0.9 0.86 +0.8 0.84 +0.0 0.00 perf-profile.calltrace.cycles-pp.mas_walk.mas_find.can_modify_mm.do_vmi_munmap.do_munmap
0.00 +0.9 0.88 +0.9 0.86 +0.0 0.00 perf-profile.calltrace.cycles-pp.mas_walk.mas_find.can_modify_mm.mremap_to.__do_sys_mremap
0.00 +0.9 0.90 ± 2% +0.9 0.90 +0.0 0.00 perf-profile.calltrace.cycles-pp.mas_walk.mas_find.can_modify_mm.do_vmi_munmap.move_vma
84.82 +1.0 85.80 +1.0 85.84 +0.4 85.19 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.mremap
84.66 +1.0 85.65 +1.0 85.69 +0.4 85.04 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.mremap
83.71 +1.0 84.73 +1.2 84.89 +0.5 84.18 perf-profile.calltrace.cycles-pp.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe.mremap
0.00 +1.1 1.10 +1.1 1.08 +0.0 0.00 perf-profile.calltrace.cycles-pp.mas_find.can_modify_mm.mremap_to.__do_sys_mremap.do_syscall_64
0.00 +1.2 1.21 +1.2 1.20 +0.0 0.00 perf-profile.calltrace.cycles-pp.mas_find.can_modify_mm.do_vmi_munmap.do_munmap.mremap_to
2.09 +1.5 3.60 +1.5 3.59 +0.0 2.11 perf-profile.calltrace.cycles-pp.do_munmap.mremap_to.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +1.5 1.51 +1.5 1.50 +0.0 0.00 perf-profile.calltrace.cycles-pp.mas_find.can_modify_mm.do_vmi_munmap.move_vma.__do_sys_mremap
1.59 +1.5 3.12 +1.5 3.11 +0.0 1.60 perf-profile.calltrace.cycles-pp.do_vmi_munmap.do_munmap.mremap_to.__do_sys_mremap.do_syscall_64
0.00 +1.6 1.62 +1.6 1.59 +0.0 0.00 perf-profile.calltrace.cycles-pp.can_modify_mm.mremap_to.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +1.7 1.72 +1.7 1.72 +0.0 0.00 perf-profile.calltrace.cycles-pp.can_modify_mm.do_vmi_munmap.do_munmap.mremap_to.__do_sys_mremap
0.00 +2.0 2.01 +2.0 1.99 +0.0 0.00 perf-profile.calltrace.cycles-pp.can_modify_mm.do_vmi_munmap.move_vma.__do_sys_mremap.do_syscall_64
5.34 +3.0 8.38 +3.0 8.34 +0.1 5.41 perf-profile.calltrace.cycles-pp.mremap_to.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe.mremap
75.13 -1.9 73.22 -1.7 73.47 +0.4 75.55 perf-profile.children.cycles-pp.move_vma
37.01 -1.6 35.43 -1.4 35.56 +0.3 37.30 perf-profile.children.cycles-pp.do_vmi_align_munmap
25.06 -1.3 23.71 -1.3 23.80 +0.0 25.06 perf-profile.children.cycles-pp.copy_vma
20.00 -1.1 18.94 -1.2 18.77 -0.2 19.81 perf-profile.children.cycles-pp.__split_vma
19.86 -1.0 18.87 -0.9 18.92 -0.0 19.84 perf-profile.children.cycles-pp.rcu_core
19.84 -1.0 18.85 -0.9 18.90 -0.0 19.82 perf-profile.children.cycles-pp.rcu_do_batch
19.88 -1.0 18.89 -0.9 18.94 -0.0 19.86 perf-profile.children.cycles-pp.handle_softirqs
10.70 ± 3% -0.9 9.84 ± 3% -0.9 9.78 ± 2% -0.4 10.33 ± 3% perf-profile.children.cycles-pp.kthread
10.70 ± 3% -0.9 9.84 ± 3% -0.9 9.78 ± 2% -0.4 10.34 ± 3% perf-profile.children.cycles-pp.ret_from_fork
10.70 ± 3% -0.9 9.84 ± 3% -0.9 9.78 ± 2% -0.4 10.34 ± 3% perf-profile.children.cycles-pp.ret_from_fork_asm
10.64 ± 3% -0.9 9.79 ± 3% -0.9 9.73 ± 2% -0.4 10.29 ± 3% perf-profile.children.cycles-pp.smpboot_thread_fn
10.63 ± 3% -0.9 9.78 ± 3% -0.9 9.72 ± 2% -0.4 10.28 ± 3% perf-profile.children.cycles-pp.run_ksoftirqd
17.53 -0.8 16.70 -0.8 16.76 +0.0 17.54 perf-profile.children.cycles-pp.kmem_cache_free
15.28 -0.8 14.47 -1.0 14.33 -0.2 15.04 perf-profile.children.cycles-pp.kmem_cache_alloc_noprof
15.16 -0.8 14.37 -0.7 14.48 +0.0 15.20 perf-profile.children.cycles-pp.vma_merge
12.18 -0.6 11.54 -0.6 11.60 +0.0 12.20 perf-profile.children.cycles-pp.mas_wr_store_entry
11.98 -0.6 11.36 -0.6 11.41 +0.0 11.98 perf-profile.children.cycles-pp.mas_store_prealloc
12.11 -0.6 11.51 -0.6 11.50 -0.1 12.02 perf-profile.children.cycles-pp.__slab_free
10.86 -0.6 10.26 -0.7 10.21 -0.1 10.75 perf-profile.children.cycles-pp.vm_area_dup
9.89 -0.5 9.40 -0.5 9.44 +0.0 9.93 perf-profile.children.cycles-pp.mas_wr_node_store
8.36 -0.4 7.92 -0.4 7.97 +0.1 8.49 perf-profile.children.cycles-pp.__memcg_slab_post_alloc_hook
7.98 -0.4 7.58 -0.3 7.68 +0.1 8.08 perf-profile.children.cycles-pp.move_page_tables
6.69 -0.4 6.33 -0.3 6.39 +0.0 6.72 perf-profile.children.cycles-pp.vma_complete
5.86 -0.3 5.56 -0.2 5.64 +0.1 5.93 perf-profile.children.cycles-pp.move_ptes
5.11 -0.3 4.81 -0.3 4.80 -0.2 4.95 perf-profile.children.cycles-pp.mas_preallocate
6.05 -0.3 5.75 -0.3 5.77 +0.0 6.07 perf-profile.children.cycles-pp.vm_area_free_rcu_cb
2.98 ± 2% -0.3 2.73 ± 4% -0.3 2.66 ± 6% -0.1 2.88 ± 3% perf-profile.children.cycles-pp.__memcpy
3.48 -0.2 3.26 -0.2 3.25 -0.0 3.45 perf-profile.children.cycles-pp.___slab_alloc
3.46 ± 2% -0.2 3.26 +0.3 3.71 ± 2% +0.5 3.92 ± 2% perf-profile.children.cycles-pp.mod_objcg_state
2.91 -0.2 2.73 -0.2 2.73 -0.1 2.79 perf-profile.children.cycles-pp.mas_alloc_nodes
2.43 -0.2 2.25 -0.2 2.27 +0.0 2.45 perf-profile.children.cycles-pp.find_vma_prev
3.47 -0.2 3.29 -0.2 3.27 ± 2% +0.0 3.50 ± 2% perf-profile.children.cycles-pp.down_write
3.46 -0.2 3.28 -0.2 3.30 +0.0 3.46 perf-profile.children.cycles-pp.flush_tlb_mm_range
4.22 -0.2 4.06 -0.3 3.91 -0.1 4.16 perf-profile.children.cycles-pp.anon_vma_clone
3.32 -0.2 3.17 -0.1 3.25 +0.1 3.42 perf-profile.children.cycles-pp.__memcg_slab_free_hook
3.35 -0.2 3.20 -0.1 3.24 +0.0 3.40 perf-profile.children.cycles-pp.mas_store_gfp
2.22 -0.1 2.07 -0.1 2.12 +0.0 2.24 perf-profile.children.cycles-pp.__cond_resched
2.05 ± 2% -0.1 1.91 -0.1 1.92 -0.0 2.04 perf-profile.children.cycles-pp.allocate_slab
3.18 -0.1 3.04 -0.1 3.11 +0.1 3.28 perf-profile.children.cycles-pp.unmap_vmas
2.24 -0.1 2.11 ± 2% -0.1 2.10 ± 3% +0.0 2.25 ± 3% perf-profile.children.cycles-pp.vma_prepare
2.12 -0.1 2.00 -0.2 1.95 -0.0 2.08 perf-profile.children.cycles-pp.__call_rcu_common
2.66 -0.1 2.53 -0.1 2.53 +0.0 2.68 perf-profile.children.cycles-pp.mtree_load
2.46 -0.1 2.34 -0.1 2.34 +0.0 2.47 perf-profile.children.cycles-pp.rcu_cblist_dequeue
2.45 ± 4% -0.1 2.33 ± 2% -0.3 2.15 ± 3% -0.2 2.28 ± 2% perf-profile.children.cycles-pp.obj_cgroup_charge
2.49 -0.1 2.38 -0.1 2.39 +0.0 2.51 perf-profile.children.cycles-pp.flush_tlb_func
8.32 -0.1 8.21 +0.2 8.52 +0.5 8.85 perf-profile.children.cycles-pp.unmap_region
2.48 -0.1 2.37 -0.0 2.44 +0.1 2.59 perf-profile.children.cycles-pp.unmap_page_range
2.23 -0.1 2.13 -0.1 2.12 +0.0 2.24 perf-profile.children.cycles-pp.native_flush_tlb_one_user
1.77 -0.1 1.67 -0.1 1.68 -0.0 1.76 perf-profile.children.cycles-pp.mas_wr_walk
1.88 -0.1 1.78 -0.1 1.80 +0.0 1.89 perf-profile.children.cycles-pp.vma_link
1.40 -0.1 1.31 -0.1 1.32 -0.0 1.40 ± 2% perf-profile.children.cycles-pp.shuffle_freelist
1.84 -0.1 1.75 -0.1 1.75 +0.0 1.85 perf-profile.children.cycles-pp.up_write
0.97 ± 2% -0.1 0.88 -0.1 0.90 ± 2% -0.0 0.94 ± 2% perf-profile.children.cycles-pp.rcu_all_qs
1.03 -0.1 0.95 -0.1 0.94 +0.0 1.04 perf-profile.children.cycles-pp.mas_prev
0.92 -0.1 0.85 -0.1 0.84 -0.0 0.92 perf-profile.children.cycles-pp.mas_prev_setup
1.58 -0.1 1.50 -0.0 1.54 +0.1 1.64 perf-profile.children.cycles-pp.zap_pmd_range
1.24 -0.1 1.17 -0.1 1.18 -0.0 1.24 perf-profile.children.cycles-pp.mas_prev_slot
1.58 -0.1 1.51 -0.1 1.52 +0.0 1.59 perf-profile.children.cycles-pp.mas_update_gap
0.62 -0.1 0.56 -0.0 0.58 -0.0 0.62 perf-profile.children.cycles-pp.security_mmap_addr
0.49 ± 2% -0.1 0.43 -0.0 0.44 ± 2% -0.0 0.46 ± 3% perf-profile.children.cycles-pp.setup_object
0.90 -0.1 0.84 -0.1 0.75 -0.1 0.78 perf-profile.children.cycles-pp.percpu_counter_add_batch
0.98 -0.1 0.92 -0.0 0.97 +0.0 1.02 perf-profile.children.cycles-pp.mas_pop_node
0.85 -0.1 0.80 -0.1 0.78 -0.0 0.84 perf-profile.children.cycles-pp._raw_spin_lock_irqsave
1.68 -0.1 1.62 -0.1 1.62 +0.0 1.68 perf-profile.children.cycles-pp.__get_unmapped_area
1.23 -0.1 1.18 +0.0 1.27 +0.1 1.34 perf-profile.children.cycles-pp.__pte_offset_map_lock
1.08 -0.1 1.03 -0.0 1.08 +0.1 1.14 perf-profile.children.cycles-pp.zap_pte_range
0.69 ± 2% -0.0 0.64 -0.0 0.67 ± 2% +0.0 0.70 perf-profile.children.cycles-pp.syscall_return_via_sysret
1.04 -0.0 1.00 -0.0 1.00 +0.0 1.08 perf-profile.children.cycles-pp.vma_to_resize
1.08 -0.0 1.04 -0.0 1.04 +0.0 1.10 perf-profile.children.cycles-pp.mas_leaf_max_gap
0.51 ± 3% -0.0 0.47 -0.0 0.47 -0.0 0.51 perf-profile.children.cycles-pp.anon_vma_interval_tree_insert
1.18 -0.0 1.14 -0.1 1.12 +0.0 1.18 perf-profile.children.cycles-pp.clear_bhb_loop
0.57 -0.0 0.53 -0.0 0.52 ± 2% -0.0 0.54 perf-profile.children.cycles-pp.mas_wr_end_piv
0.43 -0.0 0.40 -0.1 0.38 -0.0 0.41 ± 3% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
1.14 -0.0 1.10 -0.0 1.09 +0.0 1.15 perf-profile.children.cycles-pp.mt_find
0.62 -0.0 0.58 -0.0 0.58 -0.0 0.61 perf-profile.children.cycles-pp.__put_partials
0.46 ± 7% -0.0 0.42 ± 2% -0.0 0.43 -0.0 0.45 perf-profile.children.cycles-pp._raw_spin_lock
0.90 -0.0 0.87 -0.0 0.88 +0.0 0.90 perf-profile.children.cycles-pp.userfaultfd_unmap_complete
0.46 ± 3% -0.0 0.42 ± 3% -0.0 0.42 ± 2% -0.0 0.45 ± 2% perf-profile.children.cycles-pp.__alloc_pages_noprof
0.61 -0.0 0.58 -0.0 0.58 -0.0 0.60 perf-profile.children.cycles-pp.entry_SYSCALL_64
0.44 ± 3% -0.0 0.40 ± 3% -0.0 0.40 ± 2% -0.0 0.43 ± 2% perf-profile.children.cycles-pp.get_page_from_freelist
0.48 -0.0 0.45 ± 2% -0.0 0.45 -0.0 0.46 perf-profile.children.cycles-pp.mas_prev_range
0.64 -0.0 0.61 -0.0 0.61 +0.0 0.65 perf-profile.children.cycles-pp.get_old_pud
0.31 ± 2% -0.0 0.28 ± 3% -0.0 0.29 ± 2% +0.0 0.32 ± 3% perf-profile.children.cycles-pp.security_vm_enough_memory_mm
0.33 ± 3% -0.0 0.30 ± 2% -0.0 0.30 ± 2% -0.0 0.32 ± 2% perf-profile.children.cycles-pp.mas_put_in_tree
0.32 ± 2% -0.0 0.29 ± 2% -0.0 0.30 ± 3% -0.0 0.31 ± 2% perf-profile.children.cycles-pp.tlb_finish_mmu
0.47 -0.0 0.44 ± 2% -0.0 0.42 ± 2% -0.0 0.45 perf-profile.children.cycles-pp.rcu_segcblist_enqueue
0.70 ± 3% -0.0 0.68 -0.0 0.66 ± 3% -0.1 0.60 perf-profile.children.cycles-pp.__anon_vma_interval_tree_remove
0.32 ± 3% -0.0 0.30 ± 2% -0.0 0.30 -0.0 0.32 perf-profile.children.cycles-pp.free_unref_page
0.55 -0.0 0.53 -0.0 0.55 ± 2% +0.0 0.58 perf-profile.children.cycles-pp.refill_obj_stock
0.33 -0.0 0.31 -0.0 0.32 +0.0 0.33 perf-profile.children.cycles-pp.mas_destroy
0.25 ± 4% -0.0 0.23 ± 3% -0.0 0.23 ± 3% -0.0 0.25 ± 2% perf-profile.children.cycles-pp.rmqueue
0.35 -0.0 0.34 -0.0 0.34 +0.0 0.36 perf-profile.children.cycles-pp.__rb_insert_augmented
0.39 -0.0 0.37 -0.0 0.36 ± 2% -0.0 0.38 perf-profile.children.cycles-pp.down_write_killable
0.22 ± 4% -0.0 0.20 ± 3% -0.0 0.20 ± 3% -0.0 0.22 ± 3% perf-profile.children.cycles-pp.__rmqueue_pcplist
0.21 ± 4% -0.0 0.19 ± 3% -0.0 0.19 ± 3% -0.0 0.20 ± 3% perf-profile.children.cycles-pp.rmqueue_bulk
0.52 -0.0 0.51 ± 2% +0.1 0.59 +0.1 0.64 perf-profile.children.cycles-pp.__pte_offset_map
0.30 ± 2% -0.0 0.28 ± 2% -0.1 0.23 ± 3% -0.0 0.25 ± 3% perf-profile.children.cycles-pp.__vm_enough_memory
0.26 -0.0 0.24 ± 2% -0.0 0.21 -0.0 0.22 perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.28 ± 2% -0.0 0.27 ± 2% -0.0 0.26 -0.0 0.28 ± 2% perf-profile.children.cycles-pp.free_unref_page_commit
0.29 -0.0 0.27 -0.0 0.27 ± 2% +0.0 0.29 ± 2% perf-profile.children.cycles-pp.tlb_gather_mmu
0.16 ± 2% -0.0 0.14 ± 3% -0.0 0.14 ± 2% -0.0 0.14 ± 3% perf-profile.children.cycles-pp.mas_wr_append
0.28 ± 2% -0.0 0.26 +0.0 0.32 +0.1 0.33 ± 2% perf-profile.children.cycles-pp.khugepaged_enter_vma
0.32 -0.0 0.30 -0.0 0.30 -0.0 0.32 ± 2% perf-profile.children.cycles-pp.mas_wr_store_setup
0.09 ± 4% -0.0 0.08 ± 5% -0.0 0.06 ± 6% -0.0 0.07 perf-profile.children.cycles-pp.vma_dup_policy
0.43 -0.0 0.42 -0.0 0.41 +0.0 0.43 perf-profile.children.cycles-pp.mremap_userfaultfd_complete
0.13 ± 6% -0.0 0.12 ± 11% -0.0 0.10 ± 4% +0.0 0.13 ± 9% perf-profile.children.cycles-pp.vm_stat_account
0.36 -0.0 0.35 -0.0 0.35 +0.0 0.37 perf-profile.children.cycles-pp.madvise_vma_behavior
0.18 ± 2% -0.0 0.17 ± 2% -0.0 0.16 ± 2% +0.0 0.18 ± 2% perf-profile.children.cycles-pp.__free_one_page
0.16 ± 3% -0.0 0.15 ± 3% -0.0 0.12 -0.0 0.13 ± 3% perf-profile.children.cycles-pp.x64_sys_call
0.15 ± 3% -0.0 0.14 ± 3% -0.0 0.13 ± 2% -0.0 0.14 ± 2% perf-profile.children.cycles-pp.flush_tlb_batched_pending
0.15 ± 2% -0.0 0.14 ± 3% +0.0 0.19 ± 2% +0.1 0.20 ± 2% perf-profile.children.cycles-pp.mas_node_count_gfp
0.24 ± 2% +0.0 0.24 ± 3% +0.0 0.24 ± 2% +0.0 0.27 ± 6% perf-profile.children.cycles-pp.lru_add_drain
0.07 +0.0 0.07 ± 6% -0.0 0.05 -0.0 0.05 ± 9% perf-profile.children.cycles-pp.__x64_sys_mremap
0.14 ± 3% +0.0 0.15 ± 2% +0.0 0.14 ± 5% +0.0 0.14 ± 2% perf-profile.children.cycles-pp.free_pgd_range
0.08 ± 4% +0.0 0.10 ± 4% +0.0 0.08 +0.0 0.08 perf-profile.children.cycles-pp.mm_get_unmapped_area_vmflags
0.78 +0.1 0.85 +0.1 0.84 +0.0 0.79 perf-profile.children.cycles-pp.__madvise
0.63 +0.1 0.71 +0.1 0.70 +0.0 0.64 perf-profile.children.cycles-pp.__x64_sys_madvise
0.63 +0.1 0.70 +0.1 0.70 +0.0 0.64 perf-profile.children.cycles-pp.do_madvise
3.52 +0.1 3.60 +0.4 3.97 +0.5 4.03 perf-profile.children.cycles-pp.free_pgtables
0.00 +0.1 0.09 +0.1 0.09 ± 3% +0.0 0.00 perf-profile.children.cycles-pp.can_modify_mm_madv
1.30 +0.2 1.46 +0.2 1.48 +0.0 1.32 perf-profile.children.cycles-pp.mas_next_slot
88.06 +0.8 88.84 +0.9 88.91 +0.3 88.40 perf-profile.children.cycles-pp.mremap
83.81 +1.0 84.84 +1.2 84.99 +0.5 84.28 perf-profile.children.cycles-pp.__do_sys_mremap
85.98 +1.0 87.02 +1.1 87.07 +0.4 86.38 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
85.50 +1.1 86.56 +1.1 86.60 +0.4 85.89 perf-profile.children.cycles-pp.do_syscall_64
2.12 +1.5 3.62 +1.5 3.61 +0.0 2.13 perf-profile.children.cycles-pp.do_munmap
40.41 +1.5 41.93 +1.6 42.04 +0.3 40.75 perf-profile.children.cycles-pp.do_vmi_munmap
3.62 +2.4 5.98 +2.3 5.93 +0.0 3.65 perf-profile.children.cycles-pp.mas_walk
5.40 +3.0 8.44 +3.0 8.41 +0.1 5.47 perf-profile.children.cycles-pp.mremap_to
5.26 +3.2 8.48 +3.2 8.44 +0.1 5.31 perf-profile.children.cycles-pp.mas_find
0.00 +5.5 5.46 +5.4 5.42 +0.0 0.00 perf-profile.children.cycles-pp.can_modify_mm
11.49 -0.6 10.92 -0.6 10.92 -0.1 11.41 perf-profile.self.cycles-pp.__slab_free
4.32 -0.2 4.07 -1.1 3.26 ± 2% -0.9 3.46 perf-profile.self.cycles-pp.__memcg_slab_post_alloc_hook
1.96 -0.2 1.80 ± 4% -0.2 1.75 ± 6% -0.1 1.89 ± 3% perf-profile.self.cycles-pp.__memcpy
2.36 ± 2% -0.1 2.24 ± 2% -0.1 2.22 ± 3% +0.0 2.38 ± 2% perf-profile.self.cycles-pp.down_write
2.42 -0.1 2.30 -0.1 2.31 +0.0 2.44 perf-profile.self.cycles-pp.rcu_cblist_dequeue
2.33 -0.1 2.22 -0.1 2.21 -0.0 2.32 perf-profile.self.cycles-pp.mtree_load
2.21 -0.1 2.10 -0.1 2.10 +0.0 2.22 perf-profile.self.cycles-pp.native_flush_tlb_one_user
2.04 ± 5% -0.1 1.95 ± 3% -0.2 1.80 ± 3% -0.1 1.90 ± 3% perf-profile.self.cycles-pp.obj_cgroup_charge
1.62 -0.1 1.54 -0.1 1.55 +0.0 1.63 ± 2% perf-profile.self.cycles-pp.__memcg_slab_free_hook
1.52 -0.1 1.44 -0.1 1.45 -0.0 1.50 perf-profile.self.cycles-pp.mas_wr_walk
1.15 ± 2% -0.1 1.07 -0.1 1.08 -0.0 1.14 ± 2% perf-profile.self.cycles-pp.shuffle_freelist
1.53 -0.1 1.45 -0.1 1.46 +0.0 1.53 perf-profile.self.cycles-pp.up_write
1.44 -0.1 1.36 -0.1 1.33 -0.0 1.41 perf-profile.self.cycles-pp.__call_rcu_common
0.70 ± 2% -0.1 0.62 -0.1 0.64 ± 3% -0.0 0.67 ± 2% perf-profile.self.cycles-pp.rcu_all_qs
1.72 -0.1 1.66 +1.0 2.68 ± 2% +1.1 2.84 perf-profile.self.cycles-pp.mod_objcg_state
0.51 ± 3% -0.1 0.45 -0.0 0.47 -0.0 0.50 perf-profile.self.cycles-pp.security_mmap_addr
2.52 -0.1 2.46 -0.2 2.36 -0.2 2.33 perf-profile.self.cycles-pp.kmem_cache_alloc_noprof
0.94 ± 2% -0.1 0.88 ± 4% -0.1 0.88 ± 3% -0.0 0.92 ± 5% perf-profile.self.cycles-pp.vm_area_dup
1.18 -0.1 1.12 -0.1 1.12 -0.0 1.18 perf-profile.self.cycles-pp.vma_merge
0.89 -0.1 0.83 -0.1 0.83 -0.0 0.88 perf-profile.self.cycles-pp.___slab_alloc
1.38 -0.1 1.33 -0.0 1.34 +0.0 1.39 perf-profile.self.cycles-pp.do_vmi_align_munmap
0.62 -0.1 0.56 ± 2% -0.1 0.56 -0.0 0.59 perf-profile.self.cycles-pp.mremap
1.00 -0.1 0.95 -0.1 0.94 -0.0 0.97 perf-profile.self.cycles-pp.mas_preallocate
0.98 -0.1 0.93 -0.0 0.94 -0.0 0.98 perf-profile.self.cycles-pp.move_ptes
0.99 -0.1 0.94 -0.0 0.94 -0.0 0.99 perf-profile.self.cycles-pp.mas_prev_slot
1.09 -0.0 1.04 ± 2% -0.0 1.07 +0.0 1.14 perf-profile.self.cycles-pp.__cond_resched
0.94 -0.0 0.90 -0.1 0.88 -0.0 0.94 perf-profile.self.cycles-pp.vm_area_free_rcu_cb
0.85 -0.0 0.80 -0.0 0.84 +0.0 0.88 perf-profile.self.cycles-pp.mas_pop_node
0.77 -0.0 0.72 -0.1 0.64 -0.1 0.66 perf-profile.self.cycles-pp.percpu_counter_add_batch
0.68 -0.0 0.63 -0.1 0.62 -0.0 0.66 perf-profile.self.cycles-pp.__split_vma
1.17 -0.0 1.13 -0.1 1.11 +0.0 1.17 perf-profile.self.cycles-pp.clear_bhb_loop
0.95 -0.0 0.91 -0.0 0.91 +0.0 0.95 perf-profile.self.cycles-pp.mas_leaf_max_gap
0.79 -0.0 0.75 -0.0 0.77 +0.0 0.80 perf-profile.self.cycles-pp.mas_wr_store_entry
0.44 -0.0 0.40 -0.0 0.41 +0.0 0.44 perf-profile.self.cycles-pp.do_munmap
1.22 -0.0 1.18 -0.0 1.19 +0.0 1.22 perf-profile.self.cycles-pp.move_vma
0.45 -0.0 0.42 -0.0 0.41 -0.0 0.43 perf-profile.self.cycles-pp.mas_wr_end_piv
0.89 -0.0 0.86 -0.0 0.87 +0.0 0.90 perf-profile.self.cycles-pp.mas_store_gfp
0.43 ± 2% -0.0 0.40 -0.1 0.38 -0.0 0.41 ± 3% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
0.78 -0.0 0.75 -0.0 0.76 +0.0 0.79 perf-profile.self.cycles-pp.userfaultfd_unmap_complete
0.66 -0.0 0.63 -0.0 0.63 -0.0 0.66 perf-profile.self.cycles-pp.mas_store_prealloc
1.49 -0.0 1.46 -0.0 1.45 ± 2% +0.0 1.50 perf-profile.self.cycles-pp.kmem_cache_free
0.60 -0.0 0.58 -0.0 0.58 +0.0 0.61 perf-profile.self.cycles-pp.unmap_region
0.86 -0.0 0.83 -0.0 0.84 +0.0 0.88 perf-profile.self.cycles-pp.move_page_tables
0.43 ± 4% -0.0 0.40 -0.0 0.40 -0.0 0.42 perf-profile.self.cycles-pp.anon_vma_interval_tree_insert
0.99 -0.0 0.97 -0.0 0.95 +0.0 1.00 perf-profile.self.cycles-pp.mt_find
0.71 -0.0 0.68 -0.0 0.67 -0.0 0.69 perf-profile.self.cycles-pp.unmap_page_range
0.36 ± 3% -0.0 0.33 ± 2% -0.0 0.34 ± 3% +0.0 0.36 ± 2% perf-profile.self.cycles-pp.syscall_return_via_sysret
0.55 -0.0 0.52 -0.0 0.52 +0.0 0.55 perf-profile.self.cycles-pp.get_old_pud
0.49 -0.0 0.47 -0.0 0.47 +0.0 0.49 perf-profile.self.cycles-pp.find_vma_prev
0.27 -0.0 0.25 -0.0 0.25 -0.0 0.26 ± 2% perf-profile.self.cycles-pp.mas_prev_setup
0.41 -0.0 0.39 -0.0 0.39 +0.0 0.42 perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.61 -0.0 0.58 -0.0 0.59 +0.0 0.62 perf-profile.self.cycles-pp.copy_vma
0.37 ± 6% -0.0 0.35 ± 2% -0.0 0.36 -0.0 0.37 perf-profile.self.cycles-pp._raw_spin_lock
0.47 -0.0 0.45 ± 2% -0.0 0.46 -0.0 0.47 perf-profile.self.cycles-pp.flush_tlb_mm_range
0.42 ± 2% -0.0 0.40 ± 2% -0.0 0.38 ± 2% -0.0 0.41 perf-profile.self.cycles-pp.rcu_segcblist_enqueue
0.27 -0.0 0.25 ± 2% -0.0 0.24 ± 2% -0.0 0.26 ± 2% perf-profile.self.cycles-pp.mas_put_in_tree
0.44 -0.0 0.42 -0.0 0.42 +0.0 0.44 perf-profile.self.cycles-pp.mas_update_gap
0.39 -0.0 0.37 -0.0 0.38 -0.0 0.39 perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
0.49 -0.0 0.47 +0.0 0.50 ± 2% +0.0 0.52 perf-profile.self.cycles-pp.refill_obj_stock
0.27 ± 2% -0.0 0.25 ± 2% -0.0 0.26 -0.0 0.27 perf-profile.self.cycles-pp.tlb_finish_mmu
0.34 -0.0 0.32 -0.0 0.32 -0.0 0.33 perf-profile.self.cycles-pp.zap_pmd_range
0.48 -0.0 0.46 -0.0 0.48 +0.0 0.49 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
0.58 ± 2% -0.0 0.56 -0.0 0.54 ± 3% -0.1 0.48 perf-profile.self.cycles-pp.__anon_vma_interval_tree_remove
0.28 -0.0 0.26 -0.0 0.27 +0.0 0.28 ± 2% perf-profile.self.cycles-pp.mas_alloc_nodes
0.24 ± 2% -0.0 0.22 -0.0 0.22 +0.0 0.24 ± 2% perf-profile.self.cycles-pp.mas_prev
0.14 ± 3% -0.0 0.12 ± 2% -0.0 0.12 -0.0 0.12 perf-profile.self.cycles-pp.syscall_exit_to_user_mode
0.52 -0.0 0.51 -0.0 0.51 +0.0 0.55 perf-profile.self.cycles-pp.mremap_to
0.26 -0.0 0.24 -0.0 0.24 -0.0 0.26 perf-profile.self.cycles-pp.__rb_insert_augmented
0.40 -0.0 0.39 -0.0 0.39 +0.0 0.41 ± 2% perf-profile.self.cycles-pp.__pte_offset_map_lock
0.38 -0.0 0.37 -0.0 0.36 -0.0 0.38 perf-profile.self.cycles-pp.mremap_userfaultfd_complete
0.28 -0.0 0.26 ± 3% -0.0 0.26 -0.0 0.27 ± 2% perf-profile.self.cycles-pp.mas_prev_range
0.33 ± 2% -0.0 0.32 -0.0 0.31 -0.0 0.33 ± 2% perf-profile.self.cycles-pp.zap_pte_range
0.28 -0.0 0.26 -0.0 0.27 +0.0 0.28 perf-profile.self.cycles-pp.flush_tlb_func
0.22 -0.0 0.21 ± 2% -0.0 0.20 ± 2% -0.0 0.21 perf-profile.self.cycles-pp.entry_SYSCALL_64
0.10 -0.0 0.09 -0.0 0.09 ± 3% -0.0 0.10 ± 3% perf-profile.self.cycles-pp.mod_node_page_state
0.17 -0.0 0.16 -0.0 0.17 ± 2% +0.0 0.17 perf-profile.self.cycles-pp.__thp_vma_allowable_orders
0.44 -0.0 0.42 ± 2% +0.1 0.50 +0.1 0.54 perf-profile.self.cycles-pp.__pte_offset_map
0.06 -0.0 0.05 -0.1 0.00 -0.0 0.02 ±129% perf-profile.self.cycles-pp.vma_dup_policy
0.13 ± 3% -0.0 0.12 ± 3% -0.0 0.09 -0.0 0.09 ± 5% perf-profile.self.cycles-pp.x64_sys_call
0.31 -0.0 0.30 -0.0 0.29 -0.0 0.29 perf-profile.self.cycles-pp.unmap_vmas
0.10 ± 10% -0.0 0.09 ± 12% -0.0 0.08 ± 5% +0.0 0.10 ± 12% perf-profile.self.cycles-pp.vm_stat_account
0.08 ± 5% -0.0 0.07 ± 4% +0.0 0.11 ± 3% +0.0 0.12 ± 3% perf-profile.self.cycles-pp.mas_node_count_gfp
0.22 -0.0 0.21 ± 2% -0.0 0.20 -0.0 0.21 ± 2% perf-profile.self.cycles-pp.do_syscall_64
0.11 -0.0 0.10 ± 4% -0.0 0.10 +0.0 0.11 perf-profile.self.cycles-pp.security_vm_enough_memory_mm
0.08 -0.0 0.08 ± 5% -0.0 0.08 ± 4% +0.0 0.09 perf-profile.self.cycles-pp.__vm_enough_memory
0.07 +0.0 0.07 +0.0 0.08 +0.0 0.09 ± 3% perf-profile.self.cycles-pp.khugepaged_enter_vma
0.15 ± 3% +0.0 0.16 ± 3% +0.0 0.16 ± 3% +0.0 0.17 ± 2% perf-profile.self.cycles-pp.vma_to_resize
0.56 +0.0 0.57 -0.0 0.53 -0.0 0.53 perf-profile.self.cycles-pp.__do_sys_mremap
0.06 ± 5% +0.0 0.07 +0.0 0.06 +0.0 0.06 perf-profile.self.cycles-pp.mm_get_unmapped_area_vmflags
0.11 ± 4% +0.0 0.12 ± 4% -0.0 0.11 ± 3% +0.0 0.12 ± 3% perf-profile.self.cycles-pp.free_pgd_range
0.21 +0.0 0.22 ± 2% -0.0 0.21 ± 2% +0.0 0.22 ± 2% perf-profile.self.cycles-pp.thp_get_unmapped_area_vmflags
0.45 +0.0 0.48 +0.0 0.48 -0.0 0.44 perf-profile.self.cycles-pp.do_vmi_munmap
0.27 +0.0 0.32 +0.3 0.60 +0.4 0.62 perf-profile.self.cycles-pp.free_pgtables
0.36 ± 2% +0.1 0.44 +0.0 0.37 ± 2% -0.0 0.35 perf-profile.self.cycles-pp.unlink_anon_vmas
1.06 +0.1 1.19 +0.1 1.20 +0.0 1.08 perf-profile.self.cycles-pp.mas_next_slot
1.49 +0.5 2.01 +0.5 1.98 +0.0 1.50 perf-profile.self.cycles-pp.mas_find
0.00 +1.4 1.38 +1.4 1.38 +0.0 0.00 perf-profile.self.cycles-pp.can_modify_mm
3.15 +2.1 5.23 +2.0 5.19 +0.0 3.16 perf-profile.self.cycles-pp.mas_walk
>
> For everyone: Apologies if you're in the CC list and I didn't CC you,
> but I tried to keep my patch set's CC list relatively short and clean
> (and I focused on the active participants).
> Everyone's comments are very welcome.
>
> [1]: https://lore.kernel.org/all/20240806212808.1885309-1-pedro.falcato@gmail.com/
> --
> Pedro
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