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Message-ID: <CABi2SkWco0svzUqCK8OsTmivXTvoWUHrE6AJxpm=NaT2uMb=WA@mail.gmail.com>
Date: Mon, 5 Aug 2024 09:58:33 -0700
From: Jeff Xu <jeffxu@...omium.org>
To: kernel test robot <oliver.sang@...el.com>
Cc: 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>, Pedro Falcato <pedro.falcato@...il.com>,
Dave Hansen <dave.hansen@...el.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Guenter Roeck <groeck@...omium.org>, Jann Horn <jannh@...gle.com>, Jeff Xu <jeffxu@...gle.com>,
Jonathan Corbet <corbet@....net>, Jorge Lucangeli Obes <jorgelo@...omium.org>,
Linus Torvalds <torvalds@...ux-foundation.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
Subject: Re: [linus:master] [mseal] 8be7258aad: stress-ng.pagemove.page_remaps_per_sec
-4.4% regression
On Sun, Aug 4, 2024 at 1:59 AM kernel test robot <oliver.sang@...el.com> wrote:
>
>
>
> Hello,
>
> kernel test robot noticed a -4.4% regression of stress-ng.pagemove.page_remaps_per_sec on:
>
>
> commit: 8be7258aad44b5e25977a98db136f677fa6f4370 ("mseal: add mseal syscall")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
>
> testcase: stress-ng
> test machine: 64 threads 2 sockets Intel(R) Xeon(R) Gold 6346 CPU @ 3.10GHz (Ice Lake) with 256G memory
> parameters:
>
> nr_threads: 100%
> testtime: 60s
> test: pagemove
> cpufreq_governor: performance
>
>
> In addition to that, the commit also has significant impact on the following tests:
>
> +------------------+---------------------------------------------------------------------------------------------+
> | testcase: change | stress-ng: stress-ng.pkey.ops_per_sec -3.6% regression |
> | test machine | 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480CTDX (Sapphire Rapids) with 256G memory |
> | test parameters | cpufreq_governor=performance |
> | | nr_threads=100% |
> | | test=pkey |
> | | testtime=60s |
> +------------------+---------------------------------------------------------------------------------------------+
>
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <oliver.sang@...el.com>
> | Closes: https://lore.kernel.org/oe-lkp/202408041602.caa0372-oliver.sang@intel.com
>
>
> Details are as below:
> -------------------------------------------------------------------------------------------------->
>
>
> The kernel config and materials to reproduce are available at:
> https://download.01.org/0day-ci/archive/20240804/202408041602.caa0372-oliver.sang@intel.com
>
There is an error when I try to reproduce the test:
bin/lkp install job.yaml
--------------------------------------------------------
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
libdw1 : Depends: libelf1 (= 0.190-1+b1)
libdw1t64 : Breaks: libdw1 (< 0.191-2)
E: Unable to correct problems, you have held broken packages.
Cannot install some packages of perf-c2c depends
-----------------------------------------------------------------------------------------
And where is stress-ng.pagemove.page_remaps_per_sec test implemented,
is that part of lkp-tests ?
Thanks
-Jeff
> =========================================================================================
> compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
> gcc-13/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")
>
> ff388fe5c481d39c 8be7258aad44b5e25977a98db13
> ---------------- ---------------------------
> %stddev %change %stddev
> \ | \
> 41625945 -4.3% 39842322 proc-vmstat.numa_hit
> 41559175 -4.3% 39774160 proc-vmstat.numa_local
> 77484314 -4.4% 74105555 proc-vmstat.pgalloc_normal
> 77205752 -4.4% 73826672 proc-vmstat.pgfree
> 18361466 -4.2% 17596652 stress-ng.pagemove.ops
> 306014 -4.2% 293262 stress-ng.pagemove.ops_per_sec
> 205312 -4.4% 196176 stress-ng.pagemove.page_remaps_per_sec
> 4961 +1.0% 5013 stress-ng.time.percent_of_cpu_this_job_got
> 2917 +1.2% 2952 stress-ng.time.system_time
> 1.07 -6.6% 1.00 perf-stat.i.MPKI
> 3.354e+10 +3.5% 3.473e+10 perf-stat.i.branch-instructions
> 1.795e+08 -4.2% 1.719e+08 perf-stat.i.cache-misses
> 2.376e+08 -4.1% 2.279e+08 perf-stat.i.cache-references
> 1.13 -3.0% 1.10 perf-stat.i.cpi
> 1077 +4.3% 1124 perf-stat.i.cycles-between-cache-misses
> 1.717e+11 +2.7% 1.762e+11 perf-stat.i.instructions
> 0.88 +3.1% 0.91 perf-stat.i.ipc
> 1.05 -6.8% 0.97 perf-stat.overall.MPKI
> 0.25 ą 2% -0.0 0.24 perf-stat.overall.branch-miss-rate%
> 1.13 -3.0% 1.10 perf-stat.overall.cpi
> 1084 +4.0% 1127 perf-stat.overall.cycles-between-cache-misses
> 0.88 +3.1% 0.91 perf-stat.overall.ipc
> 3.298e+10 +3.5% 3.415e+10 perf-stat.ps.branch-instructions
> 1.764e+08 -4.3% 1.689e+08 perf-stat.ps.cache-misses
> 2.336e+08 -4.1% 2.24e+08 perf-stat.ps.cache-references
> 194.57 -2.4% 189.96 ą 2% perf-stat.ps.cpu-migrations
> 1.688e+11 +2.7% 1.733e+11 perf-stat.ps.instructions
> 1.036e+13 +3.0% 1.068e+13 perf-stat.total.instructions
> 75.12 -1.9 73.22 perf-profile.calltrace.cycles-pp.move_vma.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe.mremap
> 36.84 -1.6 35.29 perf-profile.calltrace.cycles-pp.do_vmi_align_munmap.do_vmi_munmap.move_vma.__do_sys_mremap.do_syscall_64
> 24.90 -1.2 23.72 perf-profile.calltrace.cycles-pp.copy_vma.move_vma.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 19.89 -0.9 18.98 perf-profile.calltrace.cycles-pp.__split_vma.do_vmi_align_munmap.do_vmi_munmap.move_vma.__do_sys_mremap
> 10.56 ą 2% -0.8 9.78 ą 2% perf-profile.calltrace.cycles-pp.rcu_core.handle_softirqs.run_ksoftirqd.smpboot_thread_fn.kthread
> 10.56 ą 2% -0.8 9.79 ą 2% perf-profile.calltrace.cycles-pp.handle_softirqs.run_ksoftirqd.smpboot_thread_fn.kthread.ret_from_fork
> 10.56 ą 2% -0.8 9.79 ą 2% perf-profile.calltrace.cycles-pp.run_ksoftirqd.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
> 10.57 ą 2% -0.8 9.80 ą 2% perf-profile.calltrace.cycles-pp.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
> 10.52 ą 2% -0.8 9.75 ą 2% perf-profile.calltrace.cycles-pp.rcu_do_batch.rcu_core.handle_softirqs.run_ksoftirqd.smpboot_thread_fn
> 10.62 ą 2% -0.8 9.85 ą 2% perf-profile.calltrace.cycles-pp.kthread.ret_from_fork.ret_from_fork_asm
> 10.62 ą 2% -0.8 9.85 ą 2% perf-profile.calltrace.cycles-pp.ret_from_fork.ret_from_fork_asm
> 10.62 ą 2% -0.8 9.85 ą 2% perf-profile.calltrace.cycles-pp.ret_from_fork_asm
> 14.75 -0.7 14.07 perf-profile.calltrace.cycles-pp.vma_merge.copy_vma.move_vma.__do_sys_mremap.do_syscall_64
> 1.50 -0.6 0.94 perf-profile.calltrace.cycles-pp.mas_find.do_vmi_munmap.move_vma.__do_sys_mremap.do_syscall_64
> 5.88 ą 2% -0.4 5.47 ą 2% perf-profile.calltrace.cycles-pp.kmem_cache_free.rcu_do_batch.rcu_core.handle_softirqs.run_ksoftirqd
> 7.80 -0.3 7.47 perf-profile.calltrace.cycles-pp.move_page_tables.move_vma.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 4.55 ą 2% -0.3 4.24 ą 2% perf-profile.calltrace.cycles-pp.__slab_free.kmem_cache_free.rcu_do_batch.rcu_core.handle_softirqs
> 6.76 -0.3 6.45 perf-profile.calltrace.cycles-pp.vm_area_dup.__split_vma.do_vmi_align_munmap.do_vmi_munmap.move_vma
> 6.15 -0.3 5.86 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_noprof.vm_area_dup.__split_vma.do_vmi_align_munmap.do_vmi_munmap
> 8.22 -0.3 7.93 perf-profile.calltrace.cycles-pp.unmap_region.do_vmi_align_munmap.do_vmi_munmap.move_vma.__do_sys_mremap
> 6.12 -0.3 5.87 perf-profile.calltrace.cycles-pp.vma_complete.__split_vma.do_vmi_align_munmap.do_vmi_munmap.move_vma
> 5.74 -0.2 5.50 perf-profile.calltrace.cycles-pp.move_ptes.move_page_tables.move_vma.__do_sys_mremap.do_syscall_64
> 3.16 ą 2% -0.2 2.94 perf-profile.calltrace.cycles-pp.vm_area_free_rcu_cb.rcu_do_batch.rcu_core.handle_softirqs.run_ksoftirqd
> 5.50 -0.2 5.28 perf-profile.calltrace.cycles-pp.mas_store_prealloc.vma_complete.__split_vma.do_vmi_align_munmap.do_vmi_munmap
> 1.36 -0.2 1.14 perf-profile.calltrace.cycles-pp.mas_find.do_vmi_munmap.do_munmap.mremap_to.__do_sys_mremap
> 5.15 -0.2 4.94 perf-profile.calltrace.cycles-pp.mas_wr_store_entry.mas_store_prealloc.vma_complete.__split_vma.do_vmi_align_munmap
> 5.51 -0.2 5.31 perf-profile.calltrace.cycles-pp.mas_store_prealloc.vma_merge.copy_vma.move_vma.__do_sys_mremap
> 5.16 -0.2 4.97 perf-profile.calltrace.cycles-pp.mas_wr_store_entry.mas_store_prealloc.vma_merge.copy_vma.move_vma
> 2.24 -0.2 2.05 perf-profile.calltrace.cycles-pp.find_vma_prev.copy_vma.move_vma.__do_sys_mremap.do_syscall_64
> 2.60 ą 2% -0.2 2.42 ą 2% perf-profile.calltrace.cycles-pp.kmem_cache_free.vm_area_free_rcu_cb.rcu_do_batch.rcu_core.handle_softirqs
> 4.67 -0.2 4.49 perf-profile.calltrace.cycles-pp.mas_wr_node_store.mas_wr_store_entry.mas_store_prealloc.vma_merge.copy_vma
> 3.41 -0.2 3.23 perf-profile.calltrace.cycles-pp.free_pgtables.unmap_region.do_vmi_align_munmap.do_vmi_munmap.move_vma
> 3.00 -0.2 2.83 ą 2% perf-profile.calltrace.cycles-pp.anon_vma_clone.__split_vma.do_vmi_align_munmap.do_vmi_munmap.move_vma
> 0.96 -0.2 0.80 perf-profile.calltrace.cycles-pp.mas_walk.mas_find.do_vmi_munmap.do_munmap.mremap_to
> 4.04 -0.2 3.88 perf-profile.calltrace.cycles-pp.vm_area_dup.copy_vma.move_vma.__do_sys_mremap.do_syscall_64
> 3.20 ą 2% -0.2 3.04 ą 2% perf-profile.calltrace.cycles-pp.__memcg_slab_post_alloc_hook.kmem_cache_alloc_noprof.vm_area_dup.__split_vma.do_vmi_align_munmap
> 3.53 -0.1 3.38 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_noprof.vm_area_dup.copy_vma.move_vma.__do_sys_mremap
> 3.40 -0.1 3.26 perf-profile.calltrace.cycles-pp.flush_tlb_mm_range.move_ptes.move_page_tables.move_vma.__do_sys_mremap
> 2.20 ą 2% -0.1 2.06 ą 2% perf-profile.calltrace.cycles-pp.kmem_cache_alloc_noprof.anon_vma_clone.__split_vma.do_vmi_align_munmap.do_vmi_munmap
> 1.84 ą 3% -0.1 1.71 ą 3% perf-profile.calltrace.cycles-pp.__memcg_slab_post_alloc_hook.kmem_cache_alloc_noprof.anon_vma_clone.__split_vma.do_vmi_align_munmap
> 1.78 ą 2% -0.1 1.65 ą 3% perf-profile.calltrace.cycles-pp.vma_prepare.vma_merge.copy_vma.move_vma.__do_sys_mremap
> 2.69 -0.1 2.56 perf-profile.calltrace.cycles-pp.unlink_anon_vmas.free_pgtables.unmap_region.do_vmi_align_munmap.do_vmi_munmap
> 1.78 ą 2% -0.1 1.66 ą 2% perf-profile.calltrace.cycles-pp.__slab_free.kmem_cache_free.vm_area_free_rcu_cb.rcu_do_batch.rcu_core
> 1.36 ą 2% -0.1 1.23 ą 2% perf-profile.calltrace.cycles-pp.rcu_cblist_dequeue.rcu_do_batch.rcu_core.handle_softirqs.run_ksoftirqd
> 0.95 -0.1 0.83 perf-profile.calltrace.cycles-pp.mas_walk.mas_find.do_vmi_munmap.move_vma.__do_sys_mremap
> 3.29 -0.1 3.17 perf-profile.calltrace.cycles-pp.mas_store_gfp.do_vmi_align_munmap.do_vmi_munmap.move_vma.__do_sys_mremap
> 2.08 -0.1 1.96 perf-profile.calltrace.cycles-pp.mas_preallocate.vma_merge.copy_vma.move_vma.__do_sys_mremap
> 1.43 ą 3% -0.1 1.32 ą 3% perf-profile.calltrace.cycles-pp.down_write.vma_prepare.vma_merge.copy_vma.move_vma
> 2.21 -0.1 2.10 perf-profile.calltrace.cycles-pp.mas_preallocate.__split_vma.do_vmi_align_munmap.do_vmi_munmap.move_vma
> 2.47 -0.1 2.36 perf-profile.calltrace.cycles-pp.flush_tlb_func.flush_tlb_mm_range.move_ptes.move_page_tables.move_vma
> 2.21 -0.1 2.12 perf-profile.calltrace.cycles-pp.native_flush_tlb_one_user.flush_tlb_func.flush_tlb_mm_range.move_ptes.move_page_tables
> 1.41 -0.1 1.32 perf-profile.calltrace.cycles-pp.mas_alloc_nodes.mas_preallocate.__split_vma.do_vmi_align_munmap.do_vmi_munmap
> 1.26 -0.1 1.18 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_noprof.mas_alloc_nodes.mas_preallocate.__split_vma.do_vmi_align_munmap
> 1.82 -0.1 1.75 perf-profile.calltrace.cycles-pp.vma_link.copy_vma.move_vma.__do_sys_mremap.do_syscall_64
> 0.71 -0.1 0.63 perf-profile.calltrace.cycles-pp.mas_prev.vma_merge.copy_vma.move_vma.__do_sys_mremap
> 1.29 -0.1 1.22 perf-profile.calltrace.cycles-pp.mas_wr_store_entry.mas_store_gfp.do_vmi_align_munmap.do_vmi_munmap.move_vma
> 0.61 -0.1 0.54 perf-profile.calltrace.cycles-pp.mas_prev_setup.mas_prev.vma_merge.copy_vma.move_vma
> 1.36 -0.1 1.29 perf-profile.calltrace.cycles-pp.kmem_cache_free.unlink_anon_vmas.free_pgtables.unmap_region.do_vmi_align_munmap
> 1.40 -0.1 1.33 perf-profile.calltrace.cycles-pp.mas_alloc_nodes.mas_preallocate.vma_merge.copy_vma.move_vma
> 0.70 -0.1 0.64 perf-profile.calltrace.cycles-pp.mas_walk.find_vma_prev.copy_vma.move_vma.__do_sys_mremap
> 1.23 -0.1 1.17 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_noprof.mas_alloc_nodes.mas_preallocate.vma_merge.copy_vma
> 1.66 -0.1 1.60 perf-profile.calltrace.cycles-pp.__get_unmapped_area.mremap_to.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 1.16 -0.1 1.10 perf-profile.calltrace.cycles-pp.anon_vma_clone.copy_vma.move_vma.__do_sys_mremap.do_syscall_64
> 0.96 -0.1 0.90 perf-profile.calltrace.cycles-pp.__memcg_slab_free_hook.kmem_cache_free.unlink_anon_vmas.free_pgtables.unmap_region
> 1.14 -0.1 1.08 perf-profile.calltrace.cycles-pp.___slab_alloc.kmem_cache_alloc_noprof.vm_area_dup.__split_vma.do_vmi_align_munmap
> 0.79 -0.1 0.74 perf-profile.calltrace.cycles-pp.___slab_alloc.kmem_cache_alloc_noprof.mas_alloc_nodes.mas_preallocate.__split_vma
> 1.04 -0.1 1.00 perf-profile.calltrace.cycles-pp.vma_to_resize.mremap_to.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 0.58 -0.0 0.53 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.mremap
> 0.61 -0.0 0.56 perf-profile.calltrace.cycles-pp.__memcg_slab_free_hook.kmem_cache_free.vm_area_free_rcu_cb.rcu_do_batch.rcu_core
> 0.56 -0.0 0.52 perf-profile.calltrace.cycles-pp.mas_find.find_vma_prev.copy_vma.move_vma.__do_sys_mremap
> 0.57 -0.0 0.53 ą 2% perf-profile.calltrace.cycles-pp.__memcg_slab_free_hook.kmem_cache_free.rcu_do_batch.rcu_core.handle_softirqs
> 0.78 -0.0 0.74 perf-profile.calltrace.cycles-pp.___slab_alloc.kmem_cache_alloc_noprof.mas_alloc_nodes.mas_preallocate.vma_merge
> 0.88 -0.0 0.84 perf-profile.calltrace.cycles-pp.mtree_load.vma_to_resize.mremap_to.__do_sys_mremap.do_syscall_64
> 0.70 -0.0 0.66 perf-profile.calltrace.cycles-pp.__call_rcu_common.do_vmi_align_munmap.do_vmi_munmap.move_vma.__do_sys_mremap
> 0.68 -0.0 0.64 perf-profile.calltrace.cycles-pp.percpu_counter_add_batch.do_vmi_align_munmap.do_vmi_munmap.move_vma.__do_sys_mremap
> 0.68 -0.0 0.64 perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.mremap
> 0.97 -0.0 0.93 perf-profile.calltrace.cycles-pp.mas_find.do_vmi_align_munmap.do_vmi_munmap.move_vma.__do_sys_mremap
> 1.11 -0.0 1.08 perf-profile.calltrace.cycles-pp.clear_bhb_loop.mremap
> 0.75 -0.0 0.72 perf-profile.calltrace.cycles-pp.allocate_slab.___slab_alloc.kmem_cache_alloc_noprof.vm_area_dup.__split_vma
> 0.74 -0.0 0.71 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_noprof.anon_vma_clone.copy_vma.move_vma.__do_sys_mremap
> 0.60 ą 2% -0.0 0.57 perf-profile.calltrace.cycles-pp.security_mmap_addr.__get_unmapped_area.mremap_to.__do_sys_mremap.do_syscall_64
> 0.67 ą 2% -0.0 0.64 perf-profile.calltrace.cycles-pp.___slab_alloc.kmem_cache_alloc_noprof.vm_area_dup.copy_vma.move_vma
> 0.82 -0.0 0.79 perf-profile.calltrace.cycles-pp.mtree_load.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe.mremap
> 0.63 -0.0 0.60 perf-profile.calltrace.cycles-pp.mas_prev_slot.do_vmi_align_munmap.do_vmi_munmap.move_vma.__do_sys_mremap
> 0.99 -0.0 0.96 perf-profile.calltrace.cycles-pp.mt_find.vma_merge.copy_vma.move_vma.__do_sys_mremap
> 0.62 ą 2% -0.0 0.59 perf-profile.calltrace.cycles-pp.get_old_pud.move_page_tables.move_vma.__do_sys_mremap.do_syscall_64
> 0.87 -0.0 0.84 perf-profile.calltrace.cycles-pp.userfaultfd_unmap_complete.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe.mremap
> 0.78 -0.0 0.75 perf-profile.calltrace.cycles-pp.mas_store_prealloc.vma_link.copy_vma.move_vma.__do_sys_mremap
> 0.64 -0.0 0.62 perf-profile.calltrace.cycles-pp.mas_preallocate.vma_link.copy_vma.move_vma.__do_sys_mremap
> 0.90 -0.0 0.87 perf-profile.calltrace.cycles-pp.mtree_load.vma_merge.copy_vma.move_vma.__do_sys_mremap
> 0.54 -0.0 0.52 perf-profile.calltrace.cycles-pp.__pte_offset_map_lock.move_ptes.move_page_tables.move_vma.__do_sys_mremap
> 1.04 +0.0 1.08 perf-profile.calltrace.cycles-pp.zap_pte_range.zap_pmd_range.unmap_page_range.unmap_vmas.unmap_region
> 0.76 +0.1 0.83 perf-profile.calltrace.cycles-pp.__madvise
> 0.63 +0.1 0.70 perf-profile.calltrace.cycles-pp.__x64_sys_madvise.do_syscall_64.entry_SYSCALL_64_after_hwframe.__madvise
> 0.62 +0.1 0.70 perf-profile.calltrace.cycles-pp.do_madvise.__x64_sys_madvise.do_syscall_64.entry_SYSCALL_64_after_hwframe.__madvise
> 0.66 +0.1 0.74 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__madvise
> 0.66 +0.1 0.74 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__madvise
> 87.74 +0.7 88.45 perf-profile.calltrace.cycles-pp.mremap
> 0.00 +0.9 0.86 perf-profile.calltrace.cycles-pp.mas_walk.mas_find.can_modify_mm.do_vmi_munmap.do_munmap
> 0.00 +0.9 0.86 perf-profile.calltrace.cycles-pp.mas_walk.mas_find.can_modify_mm.mremap_to.__do_sys_mremap
> 84.88 +0.9 85.77 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.mremap
> 84.73 +0.9 85.62 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.mremap
> 0.00 +0.9 0.92 ą 2% perf-profile.calltrace.cycles-pp.mas_walk.mas_find.can_modify_mm.do_vmi_munmap.move_vma
> 83.84 +0.9 84.78 perf-profile.calltrace.cycles-pp.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe.mremap
> 0.00 +1.1 1.06 perf-profile.calltrace.cycles-pp.mas_find.can_modify_mm.mremap_to.__do_sys_mremap.do_syscall_64
> 0.00 +1.2 1.21 perf-profile.calltrace.cycles-pp.mas_find.can_modify_mm.do_vmi_munmap.do_munmap.mremap_to
> 2.07 +1.5 3.55 perf-profile.calltrace.cycles-pp.do_munmap.mremap_to.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 1.58 +1.5 3.07 perf-profile.calltrace.cycles-pp.do_vmi_munmap.do_munmap.mremap_to.__do_sys_mremap.do_syscall_64
> 0.00 +1.5 1.52 perf-profile.calltrace.cycles-pp.mas_find.can_modify_mm.do_vmi_munmap.move_vma.__do_sys_mremap
> 0.00 +1.6 1.57 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 perf-profile.calltrace.cycles-pp.can_modify_mm.do_vmi_munmap.do_munmap.mremap_to.__do_sys_mremap
> 0.00 +2.0 2.01 perf-profile.calltrace.cycles-pp.can_modify_mm.do_vmi_munmap.move_vma.__do_sys_mremap.do_syscall_64
> 5.39 +2.9 8.32 perf-profile.calltrace.cycles-pp.mremap_to.__do_sys_mremap.do_syscall_64.entry_SYSCALL_64_after_hwframe.mremap
> 75.29 -1.9 73.37 perf-profile.children.cycles-pp.move_vma
> 37.06 -1.6 35.50 perf-profile.children.cycles-pp.do_vmi_align_munmap
> 24.98 -1.2 23.80 perf-profile.children.cycles-pp.copy_vma
> 19.99 -1.0 19.02 perf-profile.children.cycles-pp.handle_softirqs
> 19.97 -1.0 19.00 perf-profile.children.cycles-pp.rcu_core
> 19.95 -1.0 18.98 perf-profile.children.cycles-pp.rcu_do_batch
> 19.98 -0.9 19.06 perf-profile.children.cycles-pp.__split_vma
> 17.55 -0.8 16.76 perf-profile.children.cycles-pp.kmem_cache_free
> 10.56 ą 2% -0.8 9.79 ą 2% perf-profile.children.cycles-pp.run_ksoftirqd
> 10.57 ą 2% -0.8 9.80 ą 2% perf-profile.children.cycles-pp.smpboot_thread_fn
> 15.38 -0.8 14.62 perf-profile.children.cycles-pp.kmem_cache_alloc_noprof
> 10.62 ą 2% -0.8 9.85 ą 2% perf-profile.children.cycles-pp.kthread
> 10.62 ą 2% -0.8 9.86 ą 2% perf-profile.children.cycles-pp.ret_from_fork
> 10.62 ą 2% -0.8 9.86 ą 2% perf-profile.children.cycles-pp.ret_from_fork_asm
> 15.14 -0.7 14.44 perf-profile.children.cycles-pp.vma_merge
> 12.08 -0.5 11.55 perf-profile.children.cycles-pp.__slab_free
> 12.11 -0.5 11.62 perf-profile.children.cycles-pp.mas_wr_store_entry
> 10.86 -0.5 10.39 perf-profile.children.cycles-pp.vm_area_dup
> 11.89 -0.5 11.44 perf-profile.children.cycles-pp.mas_store_prealloc
> 8.49 -0.4 8.06 perf-profile.children.cycles-pp.__memcg_slab_post_alloc_hook
> 9.88 -0.4 9.49 perf-profile.children.cycles-pp.mas_wr_node_store
> 7.91 -0.3 7.58 perf-profile.children.cycles-pp.move_page_tables
> 6.06 -0.3 5.78 perf-profile.children.cycles-pp.vm_area_free_rcu_cb
> 8.28 -0.3 8.00 perf-profile.children.cycles-pp.unmap_region
> 6.69 -0.3 6.42 perf-profile.children.cycles-pp.vma_complete
> 5.06 -0.3 4.80 perf-profile.children.cycles-pp.mas_preallocate
> 5.82 -0.2 5.57 perf-profile.children.cycles-pp.move_ptes
> 4.24 -0.2 4.01 perf-profile.children.cycles-pp.anon_vma_clone
> 3.50 -0.2 3.30 perf-profile.children.cycles-pp.down_write
> 2.44 -0.2 2.25 perf-profile.children.cycles-pp.find_vma_prev
> 3.46 -0.2 3.28 perf-profile.children.cycles-pp.___slab_alloc
> 3.45 -0.2 3.27 perf-profile.children.cycles-pp.free_pgtables
> 2.54 -0.2 2.37 perf-profile.children.cycles-pp.rcu_cblist_dequeue
> 3.35 -0.2 3.18 perf-profile.children.cycles-pp.__memcg_slab_free_hook
> 2.93 -0.2 2.78 perf-profile.children.cycles-pp.mas_alloc_nodes
> 2.28 ą 2% -0.2 2.12 ą 2% perf-profile.children.cycles-pp.vma_prepare
> 3.46 -0.1 3.32 perf-profile.children.cycles-pp.flush_tlb_mm_range
> 3.41 -0.1 3.27 ą 2% perf-profile.children.cycles-pp.mod_objcg_state
> 2.76 -0.1 2.63 perf-profile.children.cycles-pp.unlink_anon_vmas
> 3.41 -0.1 3.28 perf-profile.children.cycles-pp.mas_store_gfp
> 2.21 -0.1 2.09 perf-profile.children.cycles-pp.__cond_resched
> 2.04 -0.1 1.94 perf-profile.children.cycles-pp.allocate_slab
> 2.10 -0.1 2.00 perf-profile.children.cycles-pp.__call_rcu_common
> 2.51 -0.1 2.40 perf-profile.children.cycles-pp.flush_tlb_func
> 1.04 -0.1 0.94 perf-profile.children.cycles-pp.mas_prev
> 2.71 -0.1 2.61 perf-profile.children.cycles-pp.mtree_load
> 2.23 -0.1 2.14 perf-profile.children.cycles-pp.native_flush_tlb_one_user
> 0.22 ą 5% -0.1 0.13 ą 13% perf-profile.children.cycles-pp.vm_stat_account
> 0.95 -0.1 0.87 perf-profile.children.cycles-pp.mas_prev_setup
> 1.65 -0.1 1.57 perf-profile.children.cycles-pp.mas_wr_walk
> 1.84 -0.1 1.76 perf-profile.children.cycles-pp.up_write
> 1.27 -0.1 1.20 perf-profile.children.cycles-pp.mas_prev_slot
> 1.84 -0.1 1.77 perf-profile.children.cycles-pp.vma_link
> 1.39 -0.1 1.32 perf-profile.children.cycles-pp.shuffle_freelist
> 0.96 -0.1 0.90 ą 2% perf-profile.children.cycles-pp.rcu_all_qs
> 0.86 -0.1 0.80 perf-profile.children.cycles-pp._raw_spin_lock_irqsave
> 1.70 -0.1 1.64 perf-profile.children.cycles-pp.__get_unmapped_area
> 0.34 ą 3% -0.1 0.29 ą 5% perf-profile.children.cycles-pp.security_vm_enough_memory_mm
> 0.60 -0.0 0.55 perf-profile.children.cycles-pp.entry_SYSCALL_64
> 0.92 -0.0 0.87 perf-profile.children.cycles-pp.percpu_counter_add_batch
> 1.07 -0.0 1.02 perf-profile.children.cycles-pp.vma_to_resize
> 1.59 -0.0 1.54 perf-profile.children.cycles-pp.mas_update_gap
> 0.44 ą 2% -0.0 0.40 ą 2% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
> 0.70 -0.0 0.66 perf-profile.children.cycles-pp.syscall_return_via_sysret
> 1.13 -0.0 1.09 perf-profile.children.cycles-pp.mt_find
> 0.20 ą 6% -0.0 0.17 ą 9% perf-profile.children.cycles-pp.cap_vm_enough_memory
> 0.99 -0.0 0.95 perf-profile.children.cycles-pp.mas_pop_node
> 0.63 ą 2% -0.0 0.59 perf-profile.children.cycles-pp.security_mmap_addr
> 0.62 -0.0 0.59 perf-profile.children.cycles-pp.__put_partials
> 1.17 -0.0 1.14 perf-profile.children.cycles-pp.clear_bhb_loop
> 0.46 -0.0 0.43 ą 2% perf-profile.children.cycles-pp.__alloc_pages_noprof
> 0.44 -0.0 0.41 ą 2% perf-profile.children.cycles-pp.get_page_from_freelist
> 0.90 -0.0 0.87 perf-profile.children.cycles-pp.userfaultfd_unmap_complete
> 0.64 ą 2% -0.0 0.62 perf-profile.children.cycles-pp.get_old_pud
> 1.07 -0.0 1.05 perf-profile.children.cycles-pp.mas_leaf_max_gap
> 0.22 ą 3% -0.0 0.20 ą 2% perf-profile.children.cycles-pp.__rmqueue_pcplist
> 0.55 -0.0 0.53 perf-profile.children.cycles-pp.refill_obj_stock
> 0.25 -0.0 0.23 ą 3% perf-profile.children.cycles-pp.rmqueue
> 0.48 -0.0 0.45 perf-profile.children.cycles-pp.mremap_userfaultfd_prep
> 0.33 -0.0 0.30 perf-profile.children.cycles-pp.free_unref_page
> 0.46 -0.0 0.44 perf-profile.children.cycles-pp.setup_object
> 0.21 ą 3% -0.0 0.19 ą 2% perf-profile.children.cycles-pp.rmqueue_bulk
> 0.31 ą 3% -0.0 0.29 perf-profile.children.cycles-pp.__vm_enough_memory
> 0.40 -0.0 0.38 perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
> 0.36 -0.0 0.35 perf-profile.children.cycles-pp.madvise_vma_behavior
> 0.54 -0.0 0.53 ą 2% perf-profile.children.cycles-pp.mas_wr_end_piv
> 0.46 -0.0 0.44 ą 2% perf-profile.children.cycles-pp.rcu_segcblist_enqueue
> 0.34 -0.0 0.32 ą 2% perf-profile.children.cycles-pp.mas_destroy
> 0.28 -0.0 0.26 ą 3% perf-profile.children.cycles-pp.mas_wr_store_setup
> 0.30 -0.0 0.28 perf-profile.children.cycles-pp.pte_offset_map_nolock
> 0.19 -0.0 0.18 ą 2% perf-profile.children.cycles-pp.__thp_vma_allowable_orders
> 0.08 ą 4% -0.0 0.07 perf-profile.children.cycles-pp.ksm_madvise
> 0.17 -0.0 0.16 perf-profile.children.cycles-pp.get_any_partial
> 0.08 -0.0 0.07 perf-profile.children.cycles-pp.syscall_exit_to_user_mode_prepare
> 0.45 +0.0 0.47 perf-profile.children.cycles-pp._raw_spin_lock
> 1.10 +0.0 1.14 perf-profile.children.cycles-pp.zap_pte_range
> 0.78 +0.1 0.85 perf-profile.children.cycles-pp.__madvise
> 0.63 +0.1 0.70 perf-profile.children.cycles-pp.__x64_sys_madvise
> 0.62 +0.1 0.70 perf-profile.children.cycles-pp.do_madvise
> 0.00 +0.1 0.09 ą 4% perf-profile.children.cycles-pp.can_modify_mm_madv
> 1.32 +0.1 1.46 perf-profile.children.cycles-pp.mas_next_slot
> 88.13 +0.7 88.83 perf-profile.children.cycles-pp.mremap
> 83.94 +0.9 84.88 perf-profile.children.cycles-pp.__do_sys_mremap
> 86.06 +0.9 87.00 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
> 85.56 +1.0 86.54 perf-profile.children.cycles-pp.do_syscall_64
> 40.49 +1.4 41.90 perf-profile.children.cycles-pp.do_vmi_munmap
> 2.10 +1.5 3.57 perf-profile.children.cycles-pp.do_munmap
> 3.62 +2.3 5.90 perf-profile.children.cycles-pp.mas_walk
> 5.44 +2.9 8.38 perf-profile.children.cycles-pp.mremap_to
> 5.30 +3.1 8.39 perf-profile.children.cycles-pp.mas_find
> 0.00 +5.4 5.40 perf-profile.children.cycles-pp.can_modify_mm
> 11.46 -0.5 10.96 perf-profile.self.cycles-pp.__slab_free
> 4.30 -0.2 4.08 perf-profile.self.cycles-pp.__memcg_slab_post_alloc_hook
> 2.51 -0.2 2.34 perf-profile.self.cycles-pp.rcu_cblist_dequeue
> 2.41 ą 2% -0.2 2.25 perf-profile.self.cycles-pp.down_write
> 2.21 -0.1 2.11 perf-profile.self.cycles-pp.native_flush_tlb_one_user
> 2.37 -0.1 2.28 perf-profile.self.cycles-pp.mtree_load
> 1.60 -0.1 1.51 perf-profile.self.cycles-pp.__memcg_slab_free_hook
> 0.18 ą 3% -0.1 0.10 ą 15% perf-profile.self.cycles-pp.vm_stat_account
> 1.25 -0.1 1.18 perf-profile.self.cycles-pp.move_vma
> 1.76 -0.1 1.69 perf-profile.self.cycles-pp.mod_objcg_state
> 1.42 -0.1 1.35 ą 2% perf-profile.self.cycles-pp.__call_rcu_common
> 1.41 -0.1 1.34 perf-profile.self.cycles-pp.mas_wr_walk
> 1.52 -0.1 1.46 perf-profile.self.cycles-pp.up_write
> 1.02 -0.1 0.95 perf-profile.self.cycles-pp.mas_prev_slot
> 0.96 -0.1 0.90 ą 2% perf-profile.self.cycles-pp.vm_area_free_rcu_cb
> 1.50 -0.1 1.45 perf-profile.self.cycles-pp.kmem_cache_free
> 0.69 ą 3% -0.1 0.64 ą 2% perf-profile.self.cycles-pp.rcu_all_qs
> 1.14 ą 2% -0.1 1.09 perf-profile.self.cycles-pp.shuffle_freelist
> 1.10 -0.1 1.05 perf-profile.self.cycles-pp.__cond_resched
> 1.40 -0.0 1.35 perf-profile.self.cycles-pp.do_vmi_align_munmap
> 0.99 -0.0 0.94 perf-profile.self.cycles-pp.mas_preallocate
> 0.88 -0.0 0.83 perf-profile.self.cycles-pp.___slab_alloc
> 0.55 -0.0 0.50 perf-profile.self.cycles-pp.mremap_to
> 0.98 -0.0 0.93 perf-profile.self.cycles-pp.move_ptes
> 0.78 -0.0 0.74 perf-profile.self.cycles-pp.percpu_counter_add_batch
> 0.21 ą 2% -0.0 0.18 ą 2% perf-profile.self.cycles-pp.entry_SYSCALL_64
> 0.44 ą 2% -0.0 0.40 ą 2% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
> 0.92 -0.0 0.89 perf-profile.self.cycles-pp.mas_store_gfp
> 0.86 -0.0 0.82 perf-profile.self.cycles-pp.mas_pop_node
> 0.50 -0.0 0.46 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
> 1.15 -0.0 1.12 perf-profile.self.cycles-pp.clear_bhb_loop
> 1.14 -0.0 1.11 perf-profile.self.cycles-pp.vma_merge
> 0.66 -0.0 0.63 perf-profile.self.cycles-pp.__split_vma
> 0.16 ą 6% -0.0 0.13 ą 7% perf-profile.self.cycles-pp.cap_vm_enough_memory
> 0.82 -0.0 0.79 perf-profile.self.cycles-pp.mas_wr_store_entry
> 0.54 ą 2% -0.0 0.52 perf-profile.self.cycles-pp.get_old_pud
> 0.43 -0.0 0.40 perf-profile.self.cycles-pp.do_munmap
> 0.51 ą 2% -0.0 0.48 ą 2% perf-profile.self.cycles-pp.security_mmap_addr
> 0.50 -0.0 0.48 perf-profile.self.cycles-pp.refill_obj_stock
> 0.24 -0.0 0.22 perf-profile.self.cycles-pp.mas_prev
> 0.71 -0.0 0.69 perf-profile.self.cycles-pp.unmap_page_range
> 0.48 -0.0 0.45 perf-profile.self.cycles-pp.find_vma_prev
> 0.42 -0.0 0.40 perf-profile.self.cycles-pp._raw_spin_lock_irqsave
> 0.66 -0.0 0.64 perf-profile.self.cycles-pp.mas_store_prealloc
> 0.31 -0.0 0.29 perf-profile.self.cycles-pp.mas_prev_setup
> 0.43 -0.0 0.41 perf-profile.self.cycles-pp.mas_wr_end_piv
> 0.78 -0.0 0.76 perf-profile.self.cycles-pp.userfaultfd_unmap_complete
> 0.28 -0.0 0.26 ą 2% perf-profile.self.cycles-pp.mas_put_in_tree
> 0.42 -0.0 0.40 perf-profile.self.cycles-pp.mremap_userfaultfd_prep
> 0.28 -0.0 0.26 perf-profile.self.cycles-pp.free_pgtables
> 0.39 -0.0 0.37 perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
> 0.30 ą 2% -0.0 0.28 perf-profile.self.cycles-pp.zap_pmd_range
> 0.32 -0.0 0.31 perf-profile.self.cycles-pp.unmap_vmas
> 0.21 -0.0 0.20 perf-profile.self.cycles-pp.__get_unmapped_area
> 0.18 ą 2% -0.0 0.17 ą 2% perf-profile.self.cycles-pp.lru_add_drain_cpu
> 0.06 -0.0 0.05 perf-profile.self.cycles-pp.ksm_madvise
> 0.45 +0.0 0.46 perf-profile.self.cycles-pp.do_vmi_munmap
> 0.37 +0.0 0.39 perf-profile.self.cycles-pp._raw_spin_lock
> 1.06 +0.1 1.18 perf-profile.self.cycles-pp.mas_next_slot
> 1.50 +0.5 1.97 perf-profile.self.cycles-pp.mas_find
> 0.00 +1.4 1.35 perf-profile.self.cycles-pp.can_modify_mm
> 3.13 +2.0 5.13 perf-profile.self.cycles-pp.mas_walk
>
>
> ***************************************************************************************************
> lkp-spr-r02: 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480CTDX (Sapphire Rapids) with 256G memory
> =========================================================================================
> compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
> gcc-13/performance/x86_64-rhel-8.3/100%/debian-12-x86_64-20240206.cgz/lkp-spr-r02/pkey/stress-ng/60s
>
> commit:
> ff388fe5c4 ("mseal: wire up mseal syscall")
> 8be7258aad ("mseal: add mseal syscall")
>
> ff388fe5c481d39c 8be7258aad44b5e25977a98db13
> ---------------- ---------------------------
> %stddev %change %stddev
> \ | \
> 10539 -2.5% 10273 vmstat.system.cs
> 0.28 ą 5% -20.1% 0.22 ą 7% sched_debug.cfs_rq:/.h_nr_running.stddev
> 1419 ą 7% -15.3% 1202 ą 6% sched_debug.cfs_rq:/.util_avg.max
> 0.28 ą 6% -18.4% 0.23 ą 8% sched_debug.cpu.nr_running.stddev
> 8.736e+08 -3.6% 8.423e+08 stress-ng.pkey.ops
> 14560560 -3.6% 14038795 stress-ng.pkey.ops_per_sec
> 770.39 ą 4% -5.0% 732.04 stress-ng.time.user_time
> 244657 ą 3% +5.8% 258782 ą 3% proc-vmstat.nr_slab_unreclaimable
> 73133541 -2.1% 71588873 proc-vmstat.numa_hit
> 72873579 -2.1% 71357274 proc-vmstat.numa_local
> 1.842e+08 -2.5% 1.796e+08 proc-vmstat.pgalloc_normal
> 1.767e+08 -2.8% 1.717e+08 proc-vmstat.pgfree
> 1345346 ą 40% -73.1% 362064 ą124% numa-vmstat.node0.nr_inactive_anon
> 1345340 ą 40% -73.1% 362062 ą124% numa-vmstat.node0.nr_zone_inactive_anon
> 2420830 ą 14% +35.1% 3270248 ą 16% numa-vmstat.node1.nr_file_pages
> 2067871 ą 13% +51.5% 3132982 ą 17% numa-vmstat.node1.nr_inactive_anon
> 191406 ą 17% +33.6% 255808 ą 14% numa-vmstat.node1.nr_mapped
> 2452 ą 61% +104.4% 5012 ą 35% numa-vmstat.node1.nr_page_table_pages
> 2067853 ą 13% +51.5% 3132966 ą 17% numa-vmstat.node1.nr_zone_inactive_anon
> 5379238 ą 40% -73.0% 1453605 ą123% numa-meminfo.node0.Inactive
> 5379166 ą 40% -73.0% 1453462 ą123% numa-meminfo.node0.Inactive(anon)
> 8741077 ą 22% -36.7% 5531290 ą 28% numa-meminfo.node0.MemUsed
> 9651902 ą 13% +35.8% 13105318 ą 16% numa-meminfo.node1.FilePages
> 8239855 ą 13% +52.4% 12556929 ą 17% numa-meminfo.node1.Inactive
> 8239712 ą 13% +52.4% 12556853 ą 17% numa-meminfo.node1.Inactive(anon)
> 761944 ą 18% +34.6% 1025906 ą 14% numa-meminfo.node1.Mapped
> 11679628 ą 11% +31.2% 15322841 ą 14% numa-meminfo.node1.MemUsed
> 9874 ą 62% +104.6% 20200 ą 36% numa-meminfo.node1.PageTables
> 0.74 -4.2% 0.71 perf-stat.i.MPKI
> 1.245e+11 +2.3% 1.274e+11 perf-stat.i.branch-instructions
> 0.37 -0.0 0.35 perf-stat.i.branch-miss-rate%
> 4.359e+08 -2.1% 4.265e+08 perf-stat.i.branch-misses
> 4.672e+08 -2.6% 4.548e+08 perf-stat.i.cache-misses
> 7.276e+08 -2.7% 7.082e+08 perf-stat.i.cache-references
> 1.00 -1.6% 0.98 perf-stat.i.cpi
> 1364 +2.9% 1404 perf-stat.i.cycles-between-cache-misses
> 6.392e+11 +1.7% 6.499e+11 perf-stat.i.instructions
> 1.00 +1.6% 1.02 perf-stat.i.ipc
> 0.74 -4.3% 0.71 perf-stat.overall.MPKI
> 0.35 -0.0 0.33 perf-stat.overall.branch-miss-rate%
> 1.00 -1.6% 0.99 perf-stat.overall.cpi
> 1356 +2.9% 1395 perf-stat.overall.cycles-between-cache-misses
> 1.00 +1.6% 1.01 perf-stat.overall.ipc
> 1.209e+11 +1.9% 1.232e+11 perf-stat.ps.branch-instructions
> 4.188e+08 -2.6% 4.077e+08 perf-stat.ps.branch-misses
> 4.585e+08 -3.1% 4.441e+08 perf-stat.ps.cache-misses
> 7.124e+08 -3.1% 6.901e+08 perf-stat.ps.cache-references
> 10321 -2.6% 10053 perf-stat.ps.context-switches
>
>
>
>
>
> 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
>
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