hi, Chuck Lever, we reported a 3.0% improvement of stress-ng.handle.ops_per_sec for this commit on https://lore.kernel.org/oe-lkp/202307132153.a52cdb2d-oliver.sang@intel.com/ but now we noticed a regression, detail as below, FYI Hello, kernel test robot noticed a -15.5% regression of will-it-scale.per_thread_ops on: commit: a1a690e009744e4526526b2f838beec5ef9233cc ("[PATCH v7 3/3] shmem: stable directory offsets") url: https://github.com/intel-lab-lkp/linux/commits/Chuck-Lever/libfs-Add-directory-operations-for-stable-offsets/20230701-014925 base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/all/168814734331.530310.3911190551060453102.stgit@manet.1015granger.net/ patch subject: [PATCH v7 3/3] shmem: stable directory offsets testcase: will-it-scale test machine: 104 threads 2 sockets (Skylake) with 192G memory parameters: nr_task: 16 mode: thread test: unlink2 cpufreq_governor: performance In addition to that, the commit also has significant impact on the following tests: +------------------+-------------------------------------------------------------------------------------------------+ | testcase: change | will-it-scale: will-it-scale.per_thread_ops -40.0% regression | | test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 128G memory | | test parameters | cpufreq_governor=performance | | | mode=thread | | | nr_task=16 | | | test=unlink2 | +------------------+-------------------------------------------------------------------------------------------------+ | testcase: change | stress-ng: stress-ng.handle.ops_per_sec 3.0% improvement | | test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz (Skylake) with 32G memory | | test parameters | class=filesystem | | | cpufreq_governor=performance | | | disk=1SSD | | | fs=ext4 | | | nr_threads=10% | | | test=handle | | | 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 | Closes: https://lore.kernel.org/oe-lkp/202307171436.29248fcf-oliver.sang@intel.com Details are as below: --------------------------------------------------------------------------------------------------> To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests sudo bin/lkp install job.yaml # job file is attached in this email bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run sudo bin/lkp run generated-yaml-file # if come across any failure that blocks the test, # please remove ~/.lkp and /lkp dir to run from a clean state. ========================================================================================= compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase: gcc-12/performance/x86_64-rhel-8.3/thread/16/debian-11.1-x86_64-20220510.cgz/lkp-skl-fpga01/unlink2/will-it-scale commit: c2c3172c26 ("shmem: Refactor shmem_symlink()") a1a690e009 ("shmem: stable directory offsets") c2c3172c269f808d a1a690e009744e4526526b2f838 ---------------- --------------------------- %stddev %change %stddev \ | \ 1991 +50.9% 3005 vmstat.system.cs 0.81 +1.4 2.19 mpstat.cpu.all.soft% 1.67 ± 2% -0.2 1.45 mpstat.cpu.all.usr% 24095642 ± 2% +113.9% 51539271 numa-numastat.node0.local_node 24164359 ± 2% +113.5% 51582554 numa-numastat.node0.numa_hit 555.33 ± 6% +108.7% 1158 ± 6% perf-c2c.DRAM.local 25.17 ± 16% +46.4% 36.83 ± 14% perf-c2c.DRAM.remote 13.83 ± 20% +78.3% 24.67 ± 19% perf-c2c.HITM.remote 255956 ± 24% -92.7% 18574 ± 69% sched_debug.cfs_rq:/.spread0.max 1659 ± 6% +59.1% 2640 ± 8% sched_debug.cpu.clock_task.stddev 4686 ± 4% +27.0% 5952 ± 6% sched_debug.cpu.nr_switches.avg 1144102 ± 2% -15.5% 967020 will-it-scale.16.threads 71505 ± 2% -15.5% 60438 will-it-scale.per_thread_ops 1144102 ± 2% -15.5% 967020 will-it-scale.workload 131875 +60.2% 211239 meminfo.KReclaimable 131875 +60.2% 211239 meminfo.SReclaimable 258837 -14.7% 220833 meminfo.SUnreclaim 390713 +10.6% 432074 meminfo.Slab 95496 ± 5% +86.8% 178379 ± 3% numa-meminfo.node0.KReclaimable 95496 ± 5% +86.8% 178379 ± 3% numa-meminfo.node0.SReclaimable 158003 ± 5% -27.0% 115367 ± 3% numa-meminfo.node0.SUnreclaim 253500 ± 4% +15.9% 293747 ± 2% numa-meminfo.node0.Slab 23915 ± 5% +86.8% 44685 ± 3% numa-vmstat.node0.nr_slab_reclaimable 39711 ± 5% -27.3% 28867 ± 3% numa-vmstat.node0.nr_slab_unreclaimable 24164365 ± 2% +113.5% 51582656 numa-vmstat.node0.numa_hit 24095648 ± 2% +113.9% 51539372 numa-vmstat.node0.numa_local 83317 ± 4% +83.8% 153145 ± 3% turbostat.C1E 0.10 ± 7% +0.1 0.19 ± 6% turbostat.C1E% 236.45 +2.2% 241.56 turbostat.PkgWatt 22.00 +28.8% 28.34 turbostat.RAMWatt 32975 +61.6% 53290 proc-vmstat.nr_slab_reclaimable 64774 -14.6% 55295 proc-vmstat.nr_slab_unreclaimable 24757758 ± 2% +110.7% 52155982 proc-vmstat.numa_hit 24647533 ± 2% +111.2% 52048781 proc-vmstat.numa_local 19233 +7.0% 20587 proc-vmstat.pgactivate 93642540 ± 2% +258.2% 3.354e+08 proc-vmstat.pgalloc_normal 93561023 ± 2% +258.3% 3.352e+08 proc-vmstat.pgfree 26.98 ± 6% -8.8% 24.60 ± 2% perf-stat.i.MPKI 3.913e+09 ± 2% +9.7% 4.292e+09 perf-stat.i.branch-instructions 1.39 +0.1 1.52 perf-stat.i.branch-miss-rate% 54513120 +20.1% 65495253 perf-stat.i.branch-misses 6.32 ± 6% +14.8 21.14 ± 2% perf-stat.i.cache-miss-rate% 33974168 ± 3% +245.6% 1.174e+08 perf-stat.i.cache-misses 1923 +53.1% 2943 perf-stat.i.context-switches 2.37 ± 2% -8.8% 2.16 perf-stat.i.cpi 4.736e+10 +3.0% 4.879e+10 perf-stat.i.cpu-cycles 124.48 +149.0% 309.91 perf-stat.i.cpu-migrations 1399 ± 3% -70.2% 416.95 perf-stat.i.cycles-between-cache-misses 0.09 ± 2% -0.0 0.07 perf-stat.i.dTLB-load-miss-rate% 4979142 ± 3% -9.9% 4484285 perf-stat.i.dTLB-load-misses 5.496e+09 ± 2% +11.3% 6.12e+09 perf-stat.i.dTLB-loads 3.487e+09 ± 2% +13.7% 3.963e+09 perf-stat.i.dTLB-stores 47.74 ± 3% -11.2 36.50 perf-stat.i.iTLB-load-miss-rate% 3839118 ± 2% -8.6% 3508856 perf-stat.i.iTLB-load-misses 4222137 ± 4% +44.8% 6112207 perf-stat.i.iTLB-loads 2.006e+10 ± 2% +12.8% 2.262e+10 perf-stat.i.instructions 5231 +23.4% 6457 perf-stat.i.instructions-per-iTLB-miss 0.42 ± 2% +9.5% 0.46 perf-stat.i.ipc 0.46 +3.0% 0.47 perf-stat.i.metric.GHz 152.98 +243.5% 525.55 perf-stat.i.metric.K/sec 129.18 ± 2% +11.1% 143.54 perf-stat.i.metric.M/sec 4.45 ± 6% -1.3 3.15 ± 9% perf-stat.i.node-load-miss-rate% 165920 ± 5% +62.8% 270176 ± 10% perf-stat.i.node-load-misses 3567118 ± 3% +133.8% 8340048 perf-stat.i.node-loads 1.29 ± 11% -0.8 0.53 ± 13% perf-stat.i.node-store-miss-rate% 100988 ± 10% +105.0% 207062 ± 13% perf-stat.i.node-store-misses 7747689 ± 2% +410.5% 39548289 perf-stat.i.node-stores 26.93 ± 6% -8.8% 24.56 ± 2% perf-stat.overall.MPKI 1.39 +0.1 1.53 perf-stat.overall.branch-miss-rate% 6.32 ± 6% +14.8 21.14 ± 2% perf-stat.overall.cache-miss-rate% 2.36 ± 2% -8.7% 2.16 perf-stat.overall.cpi 1395 ± 3% -70.2% 415.55 perf-stat.overall.cycles-between-cache-misses 0.09 ± 2% -0.0 0.07 perf-stat.overall.dTLB-load-miss-rate% 47.64 ± 2% -11.2 36.47 perf-stat.overall.iTLB-load-miss-rate% 5223 +23.4% 6446 perf-stat.overall.instructions-per-iTLB-miss 0.42 ± 2% +9.5% 0.46 perf-stat.overall.ipc 4.45 ± 6% -1.3 3.14 ± 9% perf-stat.overall.node-load-miss-rate% 1.29 ± 11% -0.8 0.52 ± 13% perf-stat.overall.node-store-miss-rate% 5273317 +33.4% 7034229 perf-stat.overall.path-length 3.9e+09 ± 2% +9.7% 4.277e+09 perf-stat.ps.branch-instructions 54319018 +20.1% 65250768 perf-stat.ps.branch-misses 33859327 ± 3% +245.6% 1.17e+08 perf-stat.ps.cache-misses 1916 +53.1% 2933 perf-stat.ps.context-switches 4.72e+10 +3.0% 4.862e+10 perf-stat.ps.cpu-cycles 124.04 +149.0% 308.91 perf-stat.ps.cpu-migrations 4962883 ± 3% -10.0% 4468932 perf-stat.ps.dTLB-load-misses 5.477e+09 ± 2% +11.3% 6.098e+09 perf-stat.ps.dTLB-loads 3.475e+09 ± 2% +13.6% 3.95e+09 perf-stat.ps.dTLB-stores 3826238 ± 2% -8.6% 3496835 perf-stat.ps.iTLB-load-misses 4207943 ± 4% +44.8% 6091870 perf-stat.ps.iTLB-loads 1.999e+10 ± 2% +12.8% 2.254e+10 perf-stat.ps.instructions 165300 ± 5% +62.8% 269153 ± 10% perf-stat.ps.node-load-misses 3555089 ± 3% +133.8% 8312313 perf-stat.ps.node-loads 100616 ± 10% +105.1% 206337 ± 13% perf-stat.ps.node-store-misses 7721701 ± 2% +410.5% 39418013 perf-stat.ps.node-stores 6.033e+12 ± 2% +12.7% 6.802e+12 perf-stat.total.instructions 0.10 ± 33% +476.0% 0.57 ± 8% perf-sched.sch_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork 3.94 ± 15% +142.4% 9.55 ± 30% perf-sched.sch_delay.max.ms.smpboot_thread_fn.kthread.ret_from_fork 147.35 ± 2% -30.4% 102.60 ± 3% perf-sched.total_wait_and_delay.average.ms 6589 +55.3% 10232 perf-sched.total_wait_and_delay.count.ms 147.30 ± 2% -30.5% 102.37 ± 3% perf-sched.total_wait_time.average.ms 0.45 ± 21% +166.5% 1.20 ± 10% perf-sched.wait_and_delay.avg.ms.__cond_resched.dput.do_unlinkat.__x64_sys_unlink.do_syscall_64 0.34 ± 16% +262.0% 1.24 ± 3% perf-sched.wait_and_delay.avg.ms.__cond_resched.dput.open_last_lookups.path_openat.do_filp_open 0.03 ±223% +3401.6% 1.11 ± 10% perf-sched.wait_and_delay.avg.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open 0.06 ±223% +1645.0% 1.13 ± 13% perf-sched.wait_and_delay.avg.ms.__cond_resched.mnt_want_write.do_unlinkat.__x64_sys_unlink.do_syscall_64 0.06 ±223% +1863.7% 1.11 ± 3% perf-sched.wait_and_delay.avg.ms.__cond_resched.mnt_want_write.open_last_lookups.path_openat.do_filp_open 0.32 ± 18% +255.2% 1.13 ± 5% perf-sched.wait_and_delay.avg.ms.__cond_resched.shmem_undo_range.shmem_evict_inode.evict.do_unlinkat 0.35 ± 50% +247.3% 1.21 ± 9% perf-sched.wait_and_delay.avg.ms.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru 0.31 ± 39% +275.2% 1.16 ± 10% perf-sched.wait_and_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt 0.31 ± 25% +268.5% 1.15 ± 7% perf-sched.wait_and_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64 3.73 -15.7% 3.15 ± 5% perf-sched.wait_and_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread 521.10 ± 5% -56.7% 225.46 ± 4% perf-sched.wait_and_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork 44.83 ± 9% +258.7% 160.83 ± 8% perf-sched.wait_and_delay.count.__cond_resched.dput.do_unlinkat.__x64_sys_unlink.do_syscall_64 107.17 ± 17% +45.3% 155.67 ± 4% perf-sched.wait_and_delay.count.__cond_resched.dput.open_last_lookups.path_openat.do_filp_open 5.33 ±223% +2481.2% 137.67 ± 13% perf-sched.wait_and_delay.count.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open 5.50 ±223% +1233.3% 73.33 ± 6% perf-sched.wait_and_delay.count.__cond_resched.mnt_want_write.do_unlinkat.__x64_sys_unlink.do_syscall_64 5.83 ±223% +1091.4% 69.50 ± 10% perf-sched.wait_and_delay.count.__cond_resched.mnt_want_write.open_last_lookups.path_openat.do_filp_open 93.67 ± 24% +305.3% 379.67 ± 4% perf-sched.wait_and_delay.count.__cond_resched.shmem_undo_range.shmem_evict_inode.evict.do_unlinkat 33.00 ± 48% +296.0% 130.67 ± 7% perf-sched.wait_and_delay.count.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru 42.17 ± 12% +308.3% 172.17 ± 6% perf-sched.wait_and_delay.count.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt 44.17 ± 10% +395.5% 218.83 ± 10% perf-sched.wait_and_delay.count.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64 1336 +18.8% 1587 ± 6% perf-sched.wait_and_delay.count.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread 1153 ± 3% +150.7% 2890 ± 2% perf-sched.wait_and_delay.count.smpboot_thread_fn.kthread.ret_from_fork 2.77 ± 10% +152.0% 6.98 ±101% perf-sched.wait_and_delay.max.ms.__cond_resched.dput.do_unlinkat.__x64_sys_unlink.do_syscall_64 2.58 ± 14% +281.7% 9.86 ± 89% perf-sched.wait_and_delay.max.ms.__cond_resched.dput.open_last_lookups.path_openat.do_filp_open 0.22 ±223% +1611.5% 3.77 ± 3% perf-sched.wait_and_delay.max.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open 0.44 ±223% +765.1% 3.79 ± 2% perf-sched.wait_and_delay.max.ms.__cond_resched.mnt_want_write.do_unlinkat.__x64_sys_unlink.do_syscall_64 0.42 ±223% +791.4% 3.75 ± 7% perf-sched.wait_and_delay.max.ms.__cond_resched.mnt_want_write.open_last_lookups.path_openat.do_filp_open 2.61 ± 13% +124.3% 5.85 ± 68% perf-sched.wait_and_delay.max.ms.__cond_resched.shmem_undo_range.shmem_evict_inode.evict.do_unlinkat 1.82 ± 46% +301.8% 7.30 ±106% perf-sched.wait_and_delay.max.ms.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru 2.11 ± 37% +84.4% 3.89 ± 2% perf-sched.wait_and_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt 2.68 ± 52% -40.4% 1.59 ± 3% perf-sched.wait_and_delay.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone 0.05 ±158% +2025.6% 0.97 ± 44% perf-sched.wait_time.avg.ms.__cond_resched.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare 0.28 ±119% +202.7% 0.85 ± 38% perf-sched.wait_time.avg.ms.__cond_resched.apparmor_file_alloc_security.security_file_alloc.init_file.alloc_empty_file 0.39 ± 85% +249.6% 1.35 ± 41% perf-sched.wait_time.avg.ms.__cond_resched.dentry_kill.dput.do_unlinkat.__x64_sys_unlink 0.41 ± 69% +203.9% 1.25 ± 30% perf-sched.wait_time.avg.ms.__cond_resched.down_write.do_unlinkat.__x64_sys_unlink.do_syscall_64 0.26 ± 72% +331.6% 1.14 ± 15% perf-sched.wait_time.avg.ms.__cond_resched.down_write.open_last_lookups.path_openat.do_filp_open 0.37 ± 60% +265.4% 1.34 ± 18% perf-sched.wait_time.avg.ms.__cond_resched.down_write.vfs_unlink.do_unlinkat.__x64_sys_unlink 0.32 ± 54% +286.7% 1.23 ± 44% perf-sched.wait_time.avg.ms.__cond_resched.dput.__fput.task_work_run.exit_to_user_mode_loop 0.45 ± 21% +166.5% 1.20 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.dput.do_unlinkat.__x64_sys_unlink.do_syscall_64 0.34 ± 16% +262.0% 1.24 ± 3% perf-sched.wait_time.avg.ms.__cond_resched.dput.open_last_lookups.path_openat.do_filp_open 0.30 ± 46% +308.9% 1.21 ± 8% perf-sched.wait_time.avg.ms.__cond_resched.dput.shmem_unlink.vfs_unlink.do_unlinkat 0.48 ± 33% +152.9% 1.22 ± 6% perf-sched.wait_time.avg.ms.__cond_resched.dput.terminate_walk.path_openat.do_filp_open 0.39 ± 47% +186.6% 1.11 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open 0.35 ± 32% +247.3% 1.21 ± 7% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.getname_flags.part.0 0.36 ± 46% +205.4% 1.11 ± 21% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.security_file_alloc.init_file.alloc_empty_file 0.37 ± 22% +202.2% 1.13 ± 13% perf-sched.wait_time.avg.ms.__cond_resched.mnt_want_write.do_unlinkat.__x64_sys_unlink.do_syscall_64 0.29 ± 31% +284.1% 1.11 ± 3% perf-sched.wait_time.avg.ms.__cond_resched.mnt_want_write.open_last_lookups.path_openat.do_filp_open 0.32 ± 18% +255.2% 1.13 ± 5% perf-sched.wait_time.avg.ms.__cond_resched.shmem_undo_range.shmem_evict_inode.evict.do_unlinkat 0.42 ± 20% +187.5% 1.21 ± 9% perf-sched.wait_time.avg.ms.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru 0.33 ± 85% +228.8% 1.10 ± 30% perf-sched.wait_time.avg.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode 0.31 ± 39% +275.1% 1.16 ± 10% perf-sched.wait_time.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt 0.31 ± 26% +269.6% 1.15 ± 7% perf-sched.wait_time.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64 3.72 -15.9% 3.13 ± 5% perf-sched.wait_time.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread 521.00 ± 5% -56.8% 224.89 ± 4% perf-sched.wait_time.avg.ms.smpboot_thread_fn.kthread.ret_from_fork 0.11 ±192% +2041.9% 2.34 ± 50% perf-sched.wait_time.max.ms.__cond_resched.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare 0.39 ±131% +373.0% 1.86 ± 35% perf-sched.wait_time.max.ms.__cond_resched.apparmor_file_alloc_security.security_file_alloc.init_file.alloc_empty_file 0.85 ± 86% +414.9% 4.38 ± 65% perf-sched.wait_time.max.ms.__cond_resched.dentry_kill.dput.do_unlinkat.__x64_sys_unlink 1.10 ± 56% +221.1% 3.54 ± 8% perf-sched.wait_time.max.ms.__cond_resched.down_write.do_unlinkat.__x64_sys_unlink.do_syscall_64 0.79 ± 96% +270.2% 2.94 ± 29% perf-sched.wait_time.max.ms.__cond_resched.down_write.open_last_lookups.path_openat.do_filp_open 1.36 ± 41% +181.2% 3.83 ± 2% perf-sched.wait_time.max.ms.__cond_resched.down_write.vfs_unlink.do_unlinkat.__x64_sys_unlink 0.97 ± 61% +516.1% 5.98 ±104% perf-sched.wait_time.max.ms.__cond_resched.dput.__fput.task_work_run.exit_to_user_mode_loop 2.77 ± 10% +152.0% 6.98 ±101% perf-sched.wait_time.max.ms.__cond_resched.dput.do_unlinkat.__x64_sys_unlink.do_syscall_64 2.58 ± 14% +281.7% 9.86 ± 89% perf-sched.wait_time.max.ms.__cond_resched.dput.open_last_lookups.path_openat.do_filp_open 1.25 ± 44% +457.7% 6.95 ±102% perf-sched.wait_time.max.ms.__cond_resched.dput.shmem_unlink.vfs_unlink.do_unlinkat 2.38 ± 30% +125.8% 5.38 ± 71% perf-sched.wait_time.max.ms.__cond_resched.dput.terminate_walk.path_openat.do_filp_open 2.08 ± 25% +81.3% 3.77 ± 3% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open 1.80 ± 22% +102.3% 3.65 ± 3% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.getname_flags.part.0 1.62 ± 63% +116.0% 3.50 ± 10% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.security_file_alloc.init_file.alloc_empty_file 1.97 ± 28% +92.0% 3.79 ± 2% perf-sched.wait_time.max.ms.__cond_resched.mnt_want_write.do_unlinkat.__x64_sys_unlink.do_syscall_64 2.15 ± 37% +74.3% 3.75 ± 7% perf-sched.wait_time.max.ms.__cond_resched.mnt_want_write.open_last_lookups.path_openat.do_filp_open 2.61 ± 13% +124.3% 5.85 ± 68% perf-sched.wait_time.max.ms.__cond_resched.shmem_undo_range.shmem_evict_inode.evict.do_unlinkat 2.14 ± 11% +241.1% 7.30 ±106% perf-sched.wait_time.max.ms.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru 1.05 ± 92% +213.1% 3.29 ± 13% perf-sched.wait_time.max.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode 2.11 ± 37% +84.4% 3.89 ± 2% perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt 2.61 ± 54% -39.4% 1.58 ± 3% perf-sched.wait_time.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone 26.45 ± 2% -2.1 24.32 perf-profile.calltrace.cycles-pp.unlink 12.59 ± 8% -2.1 10.49 ± 2% perf-profile.calltrace.cycles-pp.shmem_get_inode.shmem_mknod.lookup_open.open_last_lookups.path_openat 24.50 ± 2% -1.9 22.62 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.unlink 23.89 ± 2% -1.8 22.10 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink 9.52 ± 11% -1.7 7.85 ± 3% perf-profile.calltrace.cycles-pp.new_inode.shmem_get_inode.shmem_mknod.lookup_open.open_last_lookups 22.73 ± 2% -1.6 21.09 perf-profile.calltrace.cycles-pp.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink 21.93 ± 2% -1.5 20.40 perf-profile.calltrace.cycles-pp.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink 27.94 ± 2% -1.3 26.65 perf-profile.calltrace.cycles-pp.intel_idle_ibrs.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle 8.02 ± 2% -1.0 7.06 ± 4% perf-profile.calltrace.cycles-pp.__close 3.26 ± 11% -0.8 2.50 ± 2% perf-profile.calltrace.cycles-pp.do_open.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat 6.07 ± 4% -0.7 5.38 ± 5% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__close 2.66 ± 11% -0.6 2.04 ± 2% perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_filp_open.do_sys_openat2 2.90 -0.5 2.37 perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close 2.25 ± 3% -0.5 1.75 ± 2% perf-profile.calltrace.cycles-pp.path_parentat.__filename_parentat.do_unlinkat.__x64_sys_unlink.do_syscall_64 2.40 ± 3% -0.4 1.95 ± 2% perf-profile.calltrace.cycles-pp.__filename_parentat.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe 1.76 ± 6% -0.4 1.34 ± 2% perf-profile.calltrace.cycles-pp.link_path_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat 2.60 ± 7% -0.4 2.20 ± 2% perf-profile.calltrace.cycles-pp.alloc_inode.new_inode.shmem_get_inode.shmem_mknod.lookup_open 1.95 ± 3% -0.4 1.57 perf-profile.calltrace.cycles-pp.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close 1.76 ± 7% -0.4 1.38 ± 3% perf-profile.calltrace.cycles-pp.link_path_walk.path_parentat.__filename_parentat.do_unlinkat.__x64_sys_unlink 1.90 ± 3% -0.4 1.54 perf-profile.calltrace.cycles-pp.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe 1.38 ± 15% -0.3 1.04 ± 3% perf-profile.calltrace.cycles-pp.destroy_inode.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe 1.77 ± 4% -0.3 1.42 perf-profile.calltrace.cycles-pp.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64 0.68 ± 11% -0.3 0.35 ± 70% perf-profile.calltrace.cycles-pp.apparmor_path_unlink.security_path_unlink.do_unlinkat.__x64_sys_unlink.do_syscall_64 0.67 ± 17% -0.3 0.34 ± 70% perf-profile.calltrace.cycles-pp.may_delete.vfs_unlink.do_unlinkat.__x64_sys_unlink.do_syscall_64 1.18 ± 9% -0.3 0.86 ± 4% perf-profile.calltrace.cycles-pp.__destroy_inode.destroy_inode.do_unlinkat.__x64_sys_unlink.do_syscall_64 1.06 ± 9% -0.3 0.75 ± 3% perf-profile.calltrace.cycles-pp.inode_permission.link_path_walk.path_openat.do_filp_open.do_sys_openat2 1.00 ± 9% -0.3 0.69 ± 3% perf-profile.calltrace.cycles-pp.generic_permission.inode_permission.link_path_walk.path_openat.do_filp_open 1.45 ± 5% -0.3 1.15 ± 2% perf-profile.calltrace.cycles-pp.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode 1.12 ± 11% -0.3 0.86 ± 2% perf-profile.calltrace.cycles-pp.inode_permission.link_path_walk.path_parentat.__filename_parentat.do_unlinkat 1.06 ± 12% -0.2 0.81 ± 3% perf-profile.calltrace.cycles-pp.generic_permission.inode_permission.link_path_walk.path_parentat.__filename_parentat 1.24 ± 2% -0.2 1.00 perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__open64 0.93 ± 11% -0.2 0.70 perf-profile.calltrace.cycles-pp.inode_wait_for_writeback.evict.do_unlinkat.__x64_sys_unlink.do_syscall_64 0.90 ± 11% -0.2 0.67 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_lock.inode_wait_for_writeback.evict.do_unlinkat.__x64_sys_unlink 1.66 ± 2% -0.2 1.44 ± 2% perf-profile.calltrace.cycles-pp.shmem_alloc_inode.alloc_inode.new_inode.shmem_get_inode.shmem_mknod 1.64 ± 3% -0.2 1.42 ± 2% perf-profile.calltrace.cycles-pp.kmem_cache_alloc_lru.shmem_alloc_inode.alloc_inode.new_inode.shmem_get_inode 0.63 ± 4% -0.2 0.43 ± 44% perf-profile.calltrace.cycles-pp.simple_lookup.lookup_open.open_last_lookups.path_openat.do_filp_open 2.02 ± 4% -0.2 1.82 ± 2% perf-profile.calltrace.cycles-pp.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat 1.12 ± 4% -0.2 0.92 perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.__close 1.14 ± 4% -0.2 0.96 perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.__open64 1.12 ± 4% -0.2 0.94 ± 4% perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.unlink 0.69 ± 12% -0.2 0.52 ± 3% perf-profile.calltrace.cycles-pp.security_path_unlink.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe 1.02 ± 3% -0.2 0.86 ± 3% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink 1.23 ± 6% -0.1 1.10 ± 4% perf-profile.calltrace.cycles-pp.init_file.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2 1.13 ± 5% -0.1 1.00 perf-profile.calltrace.cycles-pp.__d_alloc.d_alloc.d_alloc_parallel.lookup_open.open_last_lookups 1.48 ± 3% -0.1 1.36 perf-profile.calltrace.cycles-pp.d_alloc_parallel.lookup_open.open_last_lookups.path_openat.do_filp_open 0.87 ± 6% -0.1 0.76 ± 5% perf-profile.calltrace.cycles-pp.try_to_unlazy.open_last_lookups.path_openat.do_filp_open.do_sys_openat2 0.82 ± 6% -0.1 0.72 ± 5% perf-profile.calltrace.cycles-pp.__legitimize_path.try_to_unlazy.open_last_lookups.path_openat.do_filp_open 0.71 ± 4% -0.1 0.61 ± 5% perf-profile.calltrace.cycles-pp.shmem_undo_range.shmem_evict_inode.evict.do_unlinkat.__x64_sys_unlink 0.66 ± 9% -0.1 0.56 ± 6% perf-profile.calltrace.cycles-pp.security_file_alloc.init_file.alloc_empty_file.path_openat.do_filp_open 0.71 ± 3% -0.1 0.62 ± 4% perf-profile.calltrace.cycles-pp.getname_flags.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink 0.71 ± 4% -0.1 0.61 ± 3% perf-profile.calltrace.cycles-pp.allocate_slab.___slab_alloc.kmem_cache_alloc_lru.shmem_alloc_inode.alloc_inode 0.66 ± 4% -0.1 0.57 ± 4% perf-profile.calltrace.cycles-pp.slab_pre_alloc_hook.kmem_cache_alloc_lru.shmem_alloc_inode.alloc_inode.new_inode 0.72 ± 4% -0.1 0.63 ± 3% perf-profile.calltrace.cycles-pp.___slab_alloc.kmem_cache_alloc_lru.shmem_alloc_inode.alloc_inode.new_inode 0.67 ± 4% -0.1 0.57 ± 3% perf-profile.calltrace.cycles-pp.shuffle_freelist.allocate_slab.___slab_alloc.kmem_cache_alloc_lru.shmem_alloc_inode 0.81 ± 7% -0.1 0.72 ± 2% perf-profile.calltrace.cycles-pp.terminate_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat 0.69 ± 5% -0.1 0.60 ± 2% perf-profile.calltrace.cycles-pp.getname_flags.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe 0.62 ± 5% -0.1 0.53 ± 3% perf-profile.calltrace.cycles-pp.inode_init_once.shuffle_freelist.allocate_slab.___slab_alloc.kmem_cache_alloc_lru 0.68 ± 3% -0.1 0.60 ± 2% perf-profile.calltrace.cycles-pp.dput.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe 0.79 ± 2% -0.1 0.73 ± 2% perf-profile.calltrace.cycles-pp.kmem_cache_alloc_lru.__d_alloc.d_alloc.d_alloc_parallel.lookup_open 0.92 ± 5% +0.2 1.13 ± 6% perf-profile.calltrace.cycles-pp._raw_spin_lock.shmem_evict_inode.evict.do_unlinkat.__x64_sys_unlink 0.77 ± 6% +0.2 1.00 ± 6% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.shmem_evict_inode.evict.do_unlinkat 0.27 ±100% +0.6 0.84 ± 4% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.native_queued_spin_lock_slowpath._raw_spin_lock.inode_sb_list_add.new_inode 0.27 ±100% +0.6 0.84 ± 4% perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.native_queued_spin_lock_slowpath._raw_spin_lock.inode_sb_list_add 1.05 ± 7% +0.6 1.63 ± 9% perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call 1.13 ± 7% +0.6 1.72 ± 9% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle 0.00 +0.6 0.62 ± 13% perf-profile.calltrace.cycles-pp.__slab_free.rcu_do_batch.rcu_core.__do_softirq.__irq_exit_rcu 0.00 +0.7 0.65 ± 4% perf-profile.calltrace.cycles-pp.kmem_cache_free.rcu_do_batch.rcu_core.__do_softirq.run_ksoftirqd 0.00 +0.7 0.67 ± 6% perf-profile.calltrace.cycles-pp.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state 4.07 ± 12% +0.7 4.76 perf-profile.calltrace.cycles-pp.vfs_unlink.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe 0.00 +0.7 0.70 ± 7% perf-profile.calltrace.cycles-pp.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter 0.20 ±141% +1.0 1.16 ± 10% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.native_queued_spin_lock_slowpath._raw_spin_lock.evict.do_unlinkat 0.20 ±141% +1.0 1.16 ± 10% perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.native_queued_spin_lock_slowpath._raw_spin_lock.evict 0.00 +1.0 0.99 ± 2% perf-profile.calltrace.cycles-pp.__call_rcu_common.xas_store.__xa_erase.xa_erase.simple_offset_remove 0.00 +1.3 1.32 perf-profile.calltrace.cycles-pp.allocate_slab.___slab_alloc.kmem_cache_alloc_lru.xas_alloc.xas_create 1.41 ± 10% +1.3 2.74 perf-profile.calltrace.cycles-pp.shmem_unlink.vfs_unlink.do_unlinkat.__x64_sys_unlink.do_syscall_64 0.00 +1.4 1.36 perf-profile.calltrace.cycles-pp.___slab_alloc.kmem_cache_alloc_lru.xas_alloc.xas_create.xas_store 0.00 +1.5 1.53 ± 3% perf-profile.calltrace.cycles-pp.xas_store.__xa_erase.xa_erase.simple_offset_remove.shmem_unlink 0.00 +1.5 1.55 ± 2% perf-profile.calltrace.cycles-pp.__xa_erase.xa_erase.simple_offset_remove.shmem_unlink.vfs_unlink 0.37 ±112% +1.6 1.95 ± 7% perf-profile.calltrace.cycles-pp.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.native_queued_spin_lock_slowpath._raw_spin_lock 0.37 ±112% +1.6 1.95 ± 7% perf-profile.calltrace.cycles-pp.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.native_queued_spin_lock_slowpath 0.00 +1.6 1.61 ± 2% perf-profile.calltrace.cycles-pp.xa_erase.simple_offset_remove.shmem_unlink.vfs_unlink.do_unlinkat 0.00 +1.6 1.63 ± 2% perf-profile.calltrace.cycles-pp.simple_offset_remove.shmem_unlink.vfs_unlink.do_unlinkat.__x64_sys_unlink 0.00 +1.7 1.68 ± 4% perf-profile.calltrace.cycles-pp.__slab_free.rcu_do_batch.rcu_core.__do_softirq.run_ksoftirqd 0.00 +1.7 1.71 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_lru.xas_alloc.xas_create.xas_store.__xa_alloc 0.00 +1.8 1.82 perf-profile.calltrace.cycles-pp.xas_alloc.xas_create.xas_store.__xa_alloc.__xa_alloc_cyclic 0.37 ±112% +1.9 2.22 ± 13% perf-profile.calltrace.cycles-pp.rcu_do_batch.rcu_core.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt 0.37 ±112% +1.9 2.23 ± 13% perf-profile.calltrace.cycles-pp.rcu_core.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt 0.00 +2.1 2.10 perf-profile.calltrace.cycles-pp.allocate_slab.___slab_alloc.kmem_cache_alloc_lru.xas_alloc.xas_expand 0.00 +2.2 2.16 perf-profile.calltrace.cycles-pp.___slab_alloc.kmem_cache_alloc_lru.xas_alloc.xas_expand.xas_create 19.64 ± 3% +2.4 22.08 perf-profile.calltrace.cycles-pp.open_last_lookups.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat 0.00 +2.7 2.68 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_lru.xas_alloc.xas_expand.xas_create.xas_store 0.00 +2.8 2.84 perf-profile.calltrace.cycles-pp.xas_alloc.xas_expand.xas_create.xas_store.__xa_alloc 0.00 +3.0 2.98 perf-profile.calltrace.cycles-pp.radix_tree_node_ctor.shuffle_freelist.allocate_slab.___slab_alloc.kmem_cache_alloc_lru 17.20 ± 4% +3.0 20.21 perf-profile.calltrace.cycles-pp.lookup_open.open_last_lookups.path_openat.do_filp_open.do_sys_openat2 0.00 +3.2 3.16 perf-profile.calltrace.cycles-pp.xas_expand.xas_create.xas_store.__xa_alloc.__xa_alloc_cyclic 0.00 +3.3 3.30 perf-profile.calltrace.cycles-pp.shuffle_freelist.allocate_slab.___slab_alloc.kmem_cache_alloc_lru.xas_alloc 0.00 +3.6 3.59 ± 4% perf-profile.calltrace.cycles-pp.rcu_do_batch.rcu_core.__do_softirq.run_ksoftirqd.smpboot_thread_fn 0.00 +3.6 3.60 ± 4% perf-profile.calltrace.cycles-pp.rcu_core.__do_softirq.run_ksoftirqd.smpboot_thread_fn.kthread 0.00 +3.6 3.60 ± 4% perf-profile.calltrace.cycles-pp.__do_softirq.run_ksoftirqd.smpboot_thread_fn.kthread.ret_from_fork 0.00 +3.6 3.60 ± 4% perf-profile.calltrace.cycles-pp.run_ksoftirqd.smpboot_thread_fn.kthread.ret_from_fork 0.00 +3.6 3.62 ± 4% perf-profile.calltrace.cycles-pp.smpboot_thread_fn.kthread.ret_from_fork 0.00 +3.7 3.66 ± 4% perf-profile.calltrace.cycles-pp.ret_from_fork 0.00 +3.7 3.66 ± 4% perf-profile.calltrace.cycles-pp.kthread.ret_from_fork 13.57 ± 6% +3.7 17.24 perf-profile.calltrace.cycles-pp.shmem_mknod.lookup_open.open_last_lookups.path_openat.do_filp_open 0.00 +5.3 5.34 perf-profile.calltrace.cycles-pp.xas_create.xas_store.__xa_alloc.__xa_alloc_cyclic.simple_offset_add 0.00 +5.4 5.43 perf-profile.calltrace.cycles-pp.xas_store.__xa_alloc.__xa_alloc_cyclic.simple_offset_add.shmem_mknod 0.00 +5.5 5.53 perf-profile.calltrace.cycles-pp.__xa_alloc.__xa_alloc_cyclic.simple_offset_add.shmem_mknod.lookup_open 0.00 +5.6 5.57 perf-profile.calltrace.cycles-pp.__xa_alloc_cyclic.simple_offset_add.shmem_mknod.lookup_open.open_last_lookups 0.00 +5.7 5.66 perf-profile.calltrace.cycles-pp.simple_offset_add.shmem_mknod.lookup_open.open_last_lookups.path_openat 64.05 -2.4 61.65 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe 26.54 ± 2% -2.1 24.39 perf-profile.children.cycles-pp.unlink 12.60 ± 7% -2.1 10.50 ± 2% perf-profile.children.cycles-pp.shmem_get_inode 62.12 -2.1 60.04 perf-profile.children.cycles-pp.do_syscall_64 9.52 ± 11% -1.7 7.85 ± 3% perf-profile.children.cycles-pp.new_inode 22.73 ± 2% -1.6 21.10 perf-profile.children.cycles-pp.__x64_sys_unlink 21.95 ± 2% -1.5 20.42 perf-profile.children.cycles-pp.do_unlinkat 28.01 ± 2% -1.3 26.71 perf-profile.children.cycles-pp.intel_idle_ibrs 8.10 ± 2% -1.0 7.13 ± 4% perf-profile.children.cycles-pp.__close 5.19 -0.9 4.25 perf-profile.children.cycles-pp.syscall_exit_to_user_mode 3.40 ± 14% -0.9 2.54 ± 2% perf-profile.children.cycles-pp.inode_permission 3.54 ± 6% -0.8 2.74 ± 2% perf-profile.children.cycles-pp.link_path_walk 3.26 ± 10% -0.8 2.50 ± 2% perf-profile.children.cycles-pp.do_open 2.71 ± 10% -0.7 1.98 ± 2% perf-profile.children.cycles-pp.generic_permission 2.66 ± 11% -0.6 2.04 ± 2% perf-profile.children.cycles-pp.do_dentry_open 3.43 ± 4% -0.6 2.86 perf-profile.children.cycles-pp.syscall_return_via_sysret 2.26 ± 3% -0.5 1.76 ± 2% perf-profile.children.cycles-pp.path_parentat 2.40 ± 3% -0.4 1.96 perf-profile.children.cycles-pp.__filename_parentat 2.60 ± 8% -0.4 2.20 ± 2% perf-profile.children.cycles-pp.alloc_inode 1.98 ± 3% -0.4 1.61 perf-profile.children.cycles-pp.exit_to_user_mode_prepare 1.92 ± 3% -0.4 1.55 perf-profile.children.cycles-pp.exit_to_user_mode_loop 1.36 ± 23% -0.4 1.00 ± 4% perf-profile.children.cycles-pp.__mnt_want_write 1.38 ± 15% -0.3 1.04 ± 3% perf-profile.children.cycles-pp.destroy_inode 1.78 ± 4% -0.3 1.43 perf-profile.children.cycles-pp.task_work_run 1.38 ± 20% -0.3 1.05 ± 2% perf-profile.children.cycles-pp.mnt_want_write 1.18 ± 9% -0.3 0.87 ± 4% perf-profile.children.cycles-pp.__destroy_inode 1.46 ± 5% -0.3 1.16 perf-profile.children.cycles-pp.__fput 1.65 ± 3% -0.3 1.38 perf-profile.children.cycles-pp.__entry_text_start 0.75 ± 2% -0.2 0.51 ± 2% perf-profile.children.cycles-pp.file_free_rcu 0.93 ± 11% -0.2 0.70 ± 2% perf-profile.children.cycles-pp.inode_wait_for_writeback 1.66 ± 2% -0.2 1.44 ± 2% perf-profile.children.cycles-pp.shmem_alloc_inode 0.58 ± 10% -0.2 0.38 ± 5% perf-profile.children.cycles-pp.inode_init_owner 2.02 ± 4% -0.2 1.82 perf-profile.children.cycles-pp.alloc_empty_file 1.69 ± 4% -0.2 1.50 ± 2% perf-profile.children.cycles-pp.dput 1.41 ± 4% -0.2 1.23 ± 2% perf-profile.children.cycles-pp.getname_flags 0.52 ± 12% -0.2 0.34 ± 5% perf-profile.children.cycles-pp.drop_nlink 0.69 ± 12% -0.2 0.52 ± 3% perf-profile.children.cycles-pp.security_path_unlink 0.68 ± 11% -0.2 0.51 ± 3% perf-profile.children.cycles-pp.apparmor_path_unlink 0.68 ± 18% -0.2 0.51 ± 4% perf-profile.children.cycles-pp.may_delete 0.56 ± 8% -0.1 0.41 ± 10% perf-profile.children.cycles-pp.filp_close 1.24 ± 6% -0.1 1.10 ± 4% perf-profile.children.cycles-pp.init_file 0.89 ± 3% -0.1 0.76 ± 2% perf-profile.children.cycles-pp.inode_maybe_inc_iversion 0.56 ± 9% -0.1 0.42 ± 3% perf-profile.children.cycles-pp.may_open 0.94 ± 4% -0.1 0.81 ± 3% perf-profile.children.cycles-pp.strncpy_from_user 1.05 ± 5% -0.1 0.92 ± 4% perf-profile.children.cycles-pp.try_to_unlazy 0.98 ± 5% -0.1 0.85 ± 4% perf-profile.children.cycles-pp.__legitimize_path 0.69 ± 10% -0.1 0.57 ± 5% perf-profile.children.cycles-pp.iput 0.64 ± 4% -0.1 0.52 ± 2% perf-profile.children.cycles-pp.simple_lookup 1.48 ± 3% -0.1 1.36 perf-profile.children.cycles-pp.d_alloc_parallel 0.38 ± 12% -0.1 0.26 ± 16% perf-profile.children.cycles-pp.locks_remove_posix 0.36 ± 17% -0.1 0.25 ± 8% perf-profile.children.cycles-pp.fsnotify_perm 0.36 ± 8% -0.1 0.26 ± 6% perf-profile.children.cycles-pp.security_path_mknod 0.72 ± 4% -0.1 0.62 ± 4% perf-profile.children.cycles-pp.shmem_undo_range 0.67 ± 9% -0.1 0.56 ± 6% perf-profile.children.cycles-pp.security_file_alloc 0.34 ± 9% -0.1 0.24 ± 9% perf-profile.children.cycles-pp.apparmor_path_mknod 1.34 ± 3% -0.1 1.25 perf-profile.children.cycles-pp.d_alloc 0.62 ± 4% -0.1 0.53 ± 4% perf-profile.children.cycles-pp.__check_object_size 0.70 ± 5% -0.1 0.60 ± 3% perf-profile.children.cycles-pp.memcg_list_lru_alloc 0.29 ± 5% -0.1 0.20 ± 6% perf-profile.children.cycles-pp._atomic_dec_and_lock 0.52 ± 10% -0.1 0.43 ± 5% perf-profile.children.cycles-pp.apparmor_file_open 0.87 ± 7% -0.1 0.78 ± 3% perf-profile.children.cycles-pp.terminate_walk 0.54 ± 10% -0.1 0.45 ± 5% perf-profile.children.cycles-pp.security_file_open 0.55 ± 11% -0.1 0.47 ± 6% perf-profile.children.cycles-pp.apparmor_file_alloc_security 0.62 ± 4% -0.1 0.54 ± 3% perf-profile.children.cycles-pp.inode_init_once 0.24 ± 22% -0.1 0.16 ± 4% perf-profile.children.cycles-pp.__legitimize_mnt 0.48 ± 4% -0.1 0.40 ± 7% perf-profile.children.cycles-pp._raw_spin_lock_irq 0.50 ± 6% -0.1 0.42 ± 4% perf-profile.children.cycles-pp.__list_add_valid 0.40 ± 3% -0.1 0.33 ± 2% perf-profile.children.cycles-pp.__d_add 0.41 ± 4% -0.1 0.34 ± 8% perf-profile.children.cycles-pp.clear_inode 0.34 ± 3% -0.1 0.29 ± 2% perf-profile.children.cycles-pp.lockref_put_or_lock 0.44 ± 5% -0.1 0.38 ± 4% perf-profile.children.cycles-pp.dentry_kill 0.45 ± 4% -0.1 0.40 ± 2% perf-profile.children.cycles-pp.mod_objcg_state 0.38 ± 4% -0.1 0.33 ± 5% perf-profile.children.cycles-pp.check_heap_object 0.33 ± 8% -0.0 0.28 ± 5% perf-profile.children.cycles-pp.get_obj_cgroup_from_current 0.30 ± 3% -0.0 0.25 ± 4% perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack 0.33 ± 10% -0.0 0.28 ± 7% perf-profile.children.cycles-pp.xa_load 0.28 ± 4% -0.0 0.23 ± 4% perf-profile.children.cycles-pp.walk_component 0.28 ± 5% -0.0 0.24 ± 6% perf-profile.children.cycles-pp.__virt_addr_valid 0.10 ± 17% -0.0 0.06 ± 15% perf-profile.children.cycles-pp._find_next_zero_bit 0.14 ± 5% -0.0 0.11 ± 7% perf-profile.children.cycles-pp.d_lookup 0.17 ± 14% -0.0 0.14 ± 5% perf-profile.children.cycles-pp.errseq_sample 0.07 ± 5% -0.0 0.04 ± 71% perf-profile.children.cycles-pp.find_lock_entries 0.24 ± 5% -0.0 0.21 ± 8% perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack 0.17 ± 9% -0.0 0.13 ± 7% perf-profile.children.cycles-pp.__check_heap_object 0.22 ± 4% -0.0 0.19 ± 5% perf-profile.children.cycles-pp.lookup_fast 0.14 ± 5% -0.0 0.11 ± 6% perf-profile.children.cycles-pp.lookup_one_qstr_excl 0.23 ± 4% -0.0 0.20 perf-profile.children.cycles-pp.shmem_get_partial_folio 0.14 ± 14% -0.0 0.12 ± 6% perf-profile.children.cycles-pp.__srcu_read_lock 0.12 ± 4% -0.0 0.10 ± 10% perf-profile.children.cycles-pp.__d_lookup 0.13 ± 8% -0.0 0.10 ± 10% perf-profile.children.cycles-pp.lookup_dcache 0.16 ± 6% -0.0 0.14 ± 5% perf-profile.children.cycles-pp.down_write 0.11 ± 10% -0.0 0.08 ± 7% perf-profile.children.cycles-pp.set_cached_acl 0.14 ± 3% -0.0 0.12 ± 3% perf-profile.children.cycles-pp.fput 0.15 ± 5% -0.0 0.12 ± 4% perf-profile.children.cycles-pp.filemap_get_entry 0.13 ± 8% -0.0 0.11 ± 6% perf-profile.children.cycles-pp.find_get_entries 0.10 ± 5% -0.0 0.08 ± 6% perf-profile.children.cycles-pp.xas_find 0.09 ± 5% -0.0 0.07 ± 9% perf-profile.children.cycles-pp.__d_lookup_unhash 0.07 ± 9% +0.0 0.09 ± 12% perf-profile.children.cycles-pp.rebalance_domains 0.16 ± 3% +0.0 0.18 ± 5% perf-profile.children.cycles-pp.d_instantiate 0.10 ± 6% +0.0 0.13 ± 5% perf-profile.children.cycles-pp.__d_instantiate 0.07 ± 15% +0.0 0.10 ± 8% perf-profile.children.cycles-pp.perf_rotate_context 0.06 ± 13% +0.0 0.09 ± 12% perf-profile.children.cycles-pp.irqtime_account_irq 0.04 ± 45% +0.0 0.08 ± 10% perf-profile.children.cycles-pp.arch_scale_freq_tick 0.06 ± 11% +0.0 0.10 ± 11% perf-profile.children.cycles-pp.load_balance 0.11 ± 16% +0.0 0.16 ± 6% perf-profile.children.cycles-pp.perf_mux_hrtimer_handler 0.02 ± 99% +0.0 0.07 ± 11% perf-profile.children.cycles-pp.native_sched_clock 0.02 ± 99% +0.0 0.08 ± 12% perf-profile.children.cycles-pp.find_busiest_group 0.00 +0.1 0.06 ± 11% perf-profile.children.cycles-pp.update_sg_lb_stats 0.02 ±141% +0.1 0.08 ± 12% perf-profile.children.cycles-pp.update_sd_lb_stats 0.28 ± 5% +0.1 0.34 ± 6% perf-profile.children.cycles-pp.syscall_enter_from_user_mode 0.00 +0.1 0.06 ± 14% perf-profile.children.cycles-pp.update_load_avg 0.00 +0.1 0.07 ± 7% perf-profile.children.cycles-pp.xas_clear_mark 0.00 +0.1 0.07 ± 11% perf-profile.children.cycles-pp.rmqueue_bulk 0.14 ± 8% +0.1 0.21 ± 5% perf-profile.children.cycles-pp.lockref_get 0.00 +0.1 0.08 ± 8% perf-profile.children.cycles-pp.__free_one_page 0.01 ±223% +0.1 0.10 ± 9% perf-profile.children.cycles-pp.rmqueue 0.06 ± 13% +0.1 0.16 ± 4% perf-profile.children.cycles-pp.__alloc_pages 0.04 ± 45% +0.1 0.15 ± 4% perf-profile.children.cycles-pp.get_page_from_freelist 0.09 ± 10% +0.1 0.20 ± 6% perf-profile.children.cycles-pp.xas_load 0.04 ± 71% +0.1 0.15 ± 14% perf-profile.children.cycles-pp.task_tick_fair 0.07 +0.1 0.21 ± 3% perf-profile.children.cycles-pp.rcu_nocb_try_bypass 0.00 +0.2 0.15 ± 3% perf-profile.children.cycles-pp.i_callback 0.22 ± 5% +0.2 0.40 ± 4% perf-profile.children.cycles-pp.scheduler_tick 0.13 ± 10% +0.2 0.32 ± 6% perf-profile.children.cycles-pp._raw_spin_lock_irqsave 0.07 ± 14% +0.2 0.27 ± 2% perf-profile.children.cycles-pp.free_pcppages_bulk 0.39 ± 6% +0.2 0.63 ± 4% perf-profile.children.cycles-pp.update_process_times 0.15 ± 8% +0.2 0.40 ± 3% perf-profile.children.cycles-pp.__unfreeze_partials 0.09 ± 13% +0.2 0.34 ± 2% perf-profile.children.cycles-pp.free_unref_page 0.41 ± 6% +0.2 0.66 ± 5% perf-profile.children.cycles-pp.tick_sched_handle 0.47 ± 5% +0.3 0.74 ± 4% perf-profile.children.cycles-pp.tick_sched_timer 0.14 ± 6% +0.3 0.44 perf-profile.children.cycles-pp.rcu_segcblist_enqueue 0.04 ± 71% +0.3 0.33 ± 6% perf-profile.children.cycles-pp.intel_idle 0.00 +0.4 0.36 ± 4% perf-profile.children.cycles-pp.xas_descend 0.71 ± 6% +0.4 1.08 ± 4% perf-profile.children.cycles-pp.__hrtimer_run_queues 0.85 ± 6% +0.4 1.28 ± 5% perf-profile.children.cycles-pp.hrtimer_interrupt 0.87 ± 6% +0.4 1.31 ± 5% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt 0.66 ± 4% +0.5 1.15 ± 2% perf-profile.children.cycles-pp.rcu_cblist_dequeue 0.00 +0.7 0.68 perf-profile.children.cycles-pp.radix_tree_node_rcu_free 4.08 ± 12% +0.7 4.77 perf-profile.children.cycles-pp.vfs_unlink 0.92 ± 3% +0.8 1.75 ± 2% perf-profile.children.cycles-pp.kmem_cache_free 0.54 ± 4% +0.9 1.49 ± 2% perf-profile.children.cycles-pp.__call_rcu_common 1.41 ± 10% +1.3 2.75 perf-profile.children.cycles-pp.shmem_unlink 0.00 +1.6 1.56 ± 3% perf-profile.children.cycles-pp.__xa_erase 0.00 +1.6 1.61 ± 2% perf-profile.children.cycles-pp.xa_erase 0.00 +1.6 1.63 ± 2% perf-profile.children.cycles-pp.simple_offset_remove 19.65 ± 3% +2.4 22.09 perf-profile.children.cycles-pp.open_last_lookups 0.00 +3.0 3.00 perf-profile.children.cycles-pp.radix_tree_node_ctor 17.21 ± 4% +3.0 20.22 perf-profile.children.cycles-pp.lookup_open 0.00 +3.2 3.16 perf-profile.children.cycles-pp.xas_expand 0.71 ± 4% +3.2 3.91 perf-profile.children.cycles-pp.shuffle_freelist 0.82 ± 4% +3.3 4.15 perf-profile.children.cycles-pp.allocate_slab 3.59 ± 3% +3.3 6.92 ± 2% perf-profile.children.cycles-pp.__irq_exit_rcu 0.23 ± 13% +3.4 3.60 ± 4% perf-profile.children.cycles-pp.run_ksoftirqd 0.24 ± 13% +3.4 3.62 ± 4% perf-profile.children.cycles-pp.smpboot_thread_fn 0.26 ± 11% +3.4 3.66 ± 4% perf-profile.children.cycles-pp.ret_from_fork 0.26 ± 11% +3.4 3.66 ± 4% perf-profile.children.cycles-pp.kthread 0.89 ± 3% +3.4 4.29 perf-profile.children.cycles-pp.___slab_alloc 13.57 ± 6% +3.7 17.24 perf-profile.children.cycles-pp.shmem_mknod 4.62 ± 2% +3.8 8.40 ± 2% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt 4.74 ± 2% +3.8 8.56 ± 2% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt 2.43 ± 2% +4.1 6.56 perf-profile.children.cycles-pp.kmem_cache_alloc_lru 0.89 ± 4% +4.3 5.21 ± 2% perf-profile.children.cycles-pp.__slab_free 0.00 +4.7 4.68 perf-profile.children.cycles-pp.xas_alloc 0.00 +5.3 5.35 perf-profile.children.cycles-pp.xas_create 0.00 +5.5 5.54 perf-profile.children.cycles-pp.__xa_alloc 0.00 +5.6 5.57 perf-profile.children.cycles-pp.__xa_alloc_cyclic 0.00 +5.7 5.66 perf-profile.children.cycles-pp.simple_offset_add 3.66 ± 3% +6.6 10.29 perf-profile.children.cycles-pp.rcu_do_batch 3.66 ± 3% +6.7 10.32 perf-profile.children.cycles-pp.rcu_core 3.79 ± 3% +6.7 10.48 perf-profile.children.cycles-pp.__do_softirq 0.00 +7.0 6.97 perf-profile.children.cycles-pp.xas_store 13.91 ± 14% -2.4 11.56 ± 4% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath 28.01 ± 2% -1.3 26.71 perf-profile.self.cycles-pp.intel_idle_ibrs 4.33 ± 4% -0.8 3.54 perf-profile.self.cycles-pp._raw_spin_lock 2.52 ± 11% -0.7 1.80 ± 3% perf-profile.self.cycles-pp.generic_permission 3.43 ± 4% -0.6 2.85 perf-profile.self.cycles-pp.syscall_return_via_sysret 3.18 ± 2% -0.6 2.61 perf-profile.self.cycles-pp.syscall_exit_to_user_mode 1.31 ± 24% -0.4 0.94 ± 4% perf-profile.self.cycles-pp.__mnt_want_write 1.96 ± 2% -0.3 1.64 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe 0.95 ± 9% -0.3 0.64 ± 4% perf-profile.self.cycles-pp.__destroy_inode 0.75 ± 2% -0.2 0.50 ± 2% perf-profile.self.cycles-pp.file_free_rcu 1.44 ± 3% -0.2 1.21 perf-profile.self.cycles-pp.__entry_text_start 0.64 ± 12% -0.2 0.40 ± 3% perf-profile.self.cycles-pp.vfs_unlink 0.62 ± 7% -0.2 0.40 ± 5% perf-profile.self.cycles-pp.do_dentry_open 0.55 ± 9% -0.2 0.34 ± 3% perf-profile.self.cycles-pp.inode_init_owner 0.64 ± 7% -0.2 0.43 ± 5% perf-profile.self.cycles-pp.__fput 0.45 ± 9% -0.2 0.26 ± 5% perf-profile.self.cycles-pp.open_last_lookups 0.62 ± 17% -0.2 0.43 ± 4% perf-profile.self.cycles-pp.lookup_open 0.80 ± 8% -0.2 0.62 ± 3% perf-profile.self.cycles-pp.shmem_get_inode 0.64 ± 12% -0.2 0.46 ± 2% perf-profile.self.cycles-pp.apparmor_path_unlink 0.50 ± 11% -0.2 0.32 ± 6% perf-profile.self.cycles-pp.drop_nlink 0.70 ± 7% -0.2 0.53 ± 3% perf-profile.self.cycles-pp.link_path_walk 0.86 ± 4% -0.2 0.70 ± 4% perf-profile.self.cycles-pp.inode_maybe_inc_iversion 0.36 ± 11% -0.1 0.24 ± 16% perf-profile.self.cycles-pp.locks_remove_posix 0.30 ± 19% -0.1 0.18 ± 22% perf-profile.self.cycles-pp.alloc_fd 0.34 ± 15% -0.1 0.23 ± 8% perf-profile.self.cycles-pp.fsnotify_perm 0.50 ± 11% -0.1 0.40 ± 4% perf-profile.self.cycles-pp.apparmor_file_open 0.32 ± 9% -0.1 0.22 ± 8% perf-profile.self.cycles-pp.apparmor_path_mknod 0.44 ± 16% -0.1 0.34 ± 4% perf-profile.self.cycles-pp.shmem_evict_inode 0.30 ± 5% -0.1 0.20 ± 7% perf-profile.self.cycles-pp.may_delete 0.52 ± 11% -0.1 0.42 ± 6% perf-profile.self.cycles-pp.apparmor_file_alloc_security 0.21 ± 34% -0.1 0.12 ± 6% perf-profile.self.cycles-pp.dput 0.59 ± 5% -0.1 0.51 ± 3% perf-profile.self.cycles-pp.inode_init_once 0.48 ± 6% -0.1 0.40 ± 5% perf-profile.self.cycles-pp.__list_add_valid 0.47 ± 4% -0.1 0.39 ± 7% perf-profile.self.cycles-pp._raw_spin_lock_irq 0.23 ± 24% -0.1 0.15 ± 6% perf-profile.self.cycles-pp.__legitimize_mnt 0.28 ± 3% -0.1 0.21 ± 2% perf-profile.self.cycles-pp.lockref_put_or_lock 0.41 ± 4% -0.1 0.35 ± 3% perf-profile.self.cycles-pp.mod_objcg_state 0.28 ± 15% -0.1 0.23 ± 8% perf-profile.self.cycles-pp.mnt_drop_write 0.18 ± 17% -0.1 0.12 ± 14% perf-profile.self.cycles-pp.xa_load 0.31 ± 7% -0.1 0.26 ± 5% perf-profile.self.cycles-pp.strncpy_from_user 0.20 ± 15% -0.1 0.15 ± 8% perf-profile.self.cycles-pp.simple_lookup 0.19 ± 3% -0.1 0.14 ± 9% perf-profile.self.cycles-pp._atomic_dec_and_lock 0.44 ± 5% -0.0 0.39 ± 5% perf-profile.self.cycles-pp.kmem_cache_alloc 0.34 ± 3% -0.0 0.30 ± 4% perf-profile.self.cycles-pp.memcg_list_lru_alloc 0.17 ± 13% -0.0 0.12 ± 4% perf-profile.self.cycles-pp.errseq_sample 0.54 ± 3% -0.0 0.50 ± 5% perf-profile.self.cycles-pp.init_file 0.16 ± 10% -0.0 0.12 ± 8% perf-profile.self.cycles-pp.__check_heap_object 0.25 ± 4% -0.0 0.21 ± 5% perf-profile.self.cycles-pp.__virt_addr_valid 0.36 -0.0 0.33 ± 4% perf-profile.self.cycles-pp.apparmor_file_free_security 0.19 ± 6% -0.0 0.15 ± 4% perf-profile.self.cycles-pp.get_obj_cgroup_from_current 0.13 ± 6% -0.0 0.10 ± 8% perf-profile.self.cycles-pp.down_write 0.21 ± 4% -0.0 0.18 ± 7% perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack 0.15 ± 7% -0.0 0.13 ± 2% perf-profile.self.cycles-pp.up_write 0.10 ± 11% -0.0 0.08 ± 6% perf-profile.self.cycles-pp.set_cached_acl 0.12 ± 8% -0.0 0.09 ± 7% perf-profile.self.cycles-pp.d_alloc_parallel 0.12 ± 6% -0.0 0.10 ± 4% perf-profile.self.cycles-pp.syscall_enter_from_user_mode 0.10 ± 7% -0.0 0.08 ± 8% perf-profile.self.cycles-pp.do_filp_open 0.12 ± 5% -0.0 0.10 ± 4% perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack 0.12 ± 5% -0.0 0.10 ± 3% perf-profile.self.cycles-pp.inode_sb_list_add 0.10 ± 5% -0.0 0.08 ± 7% perf-profile.self.cycles-pp.filemap_get_entry 0.08 ± 5% -0.0 0.07 ± 11% perf-profile.self.cycles-pp.__d_lookup_unhash 0.08 ± 5% -0.0 0.06 ± 7% perf-profile.self.cycles-pp.___d_drop 0.09 ± 7% -0.0 0.07 ± 5% perf-profile.self.cycles-pp.exit_to_user_mode_loop 0.07 ± 11% -0.0 0.05 ± 7% perf-profile.self.cycles-pp.mntput_no_expire 0.16 ± 4% +0.0 0.18 ± 3% perf-profile.self.cycles-pp.__open64 0.04 ± 45% +0.0 0.08 ± 10% perf-profile.self.cycles-pp.arch_scale_freq_tick 0.04 ± 44% +0.0 0.07 ± 6% perf-profile.self.cycles-pp.__d_instantiate 0.13 ± 5% +0.0 0.18 ± 7% perf-profile.self.cycles-pp.__filename_parentat 0.00 +0.1 0.05 ± 8% perf-profile.self.cycles-pp.xas_clear_mark 0.00 +0.1 0.06 ± 9% perf-profile.self.cycles-pp.__hrtimer_run_queues 0.14 ± 7% +0.1 0.20 ± 6% perf-profile.self.cycles-pp.lockref_get 0.00 +0.1 0.06 ± 11% perf-profile.self.cycles-pp.irqtime_account_irq 0.01 ±223% +0.1 0.07 ± 13% perf-profile.self.cycles-pp.native_sched_clock 0.09 ± 9% +0.1 0.16 ± 10% perf-profile.self.cycles-pp._raw_spin_lock_irqsave 0.01 ±223% +0.1 0.08 ± 7% perf-profile.self.cycles-pp.xas_load 0.00 +0.1 0.08 ± 10% perf-profile.self.cycles-pp.___slab_alloc 0.00 +0.1 0.11 ± 5% perf-profile.self.cycles-pp.xas_create 0.05 ± 8% +0.1 0.17 ± 6% perf-profile.self.cycles-pp.rcu_nocb_try_bypass 0.15 ± 10% +0.1 0.27 ± 3% perf-profile.self.cycles-pp.slab_pre_alloc_hook 0.00 +0.2 0.15 ± 7% perf-profile.self.cycles-pp.rcu_do_batch 0.00 +0.2 0.15 ± 3% perf-profile.self.cycles-pp.i_callback 0.14 ± 7% +0.2 0.39 ± 3% perf-profile.self.cycles-pp.rcu_segcblist_enqueue 0.00 +0.2 0.25 ± 5% perf-profile.self.cycles-pp.xas_alloc 0.04 ± 45% +0.3 0.32 ± 6% perf-profile.self.cycles-pp.shuffle_freelist 0.00 +0.3 0.29 ± 3% perf-profile.self.cycles-pp.xas_expand 0.04 ± 71% +0.3 0.33 ± 6% perf-profile.self.cycles-pp.intel_idle 0.00 +0.3 0.31 ± 4% perf-profile.self.cycles-pp.xas_descend 0.00 +0.3 0.34 ± 6% perf-profile.self.cycles-pp.xas_store 0.65 ± 4% +0.5 1.12 ± 2% perf-profile.self.cycles-pp.rcu_cblist_dequeue 0.31 ± 3% +0.5 0.80 perf-profile.self.cycles-pp.__call_rcu_common 0.15 ± 3% +0.6 0.75 ± 3% perf-profile.self.cycles-pp.kmem_cache_alloc_lru 0.00 +0.7 0.68 perf-profile.self.cycles-pp.radix_tree_node_rcu_free 0.50 ± 3% +0.9 1.36 ± 2% perf-profile.self.cycles-pp.kmem_cache_free 0.00 +2.9 2.87 perf-profile.self.cycles-pp.radix_tree_node_ctor 0.89 ± 4% +4.2 5.11 ± 2% perf-profile.self.cycles-pp.__slab_free *************************************************************************************************** lkp-csl-d02: 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 128G memory ========================================================================================= compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase: gcc-12/performance/x86_64-rhel-8.3/thread/16/debian-11.1-x86_64-20220510.cgz/lkp-csl-d02/unlink2/will-it-scale commit: c2c3172c26 ("shmem: Refactor shmem_symlink()") a1a690e009 ("shmem: stable directory offsets") c2c3172c269f808d a1a690e009744e4526526b2f838 ---------------- --------------------------- %stddev %change %stddev \ | \ 152086 -26.3% 112046 ± 20% meminfo.SUnreclaim 5272 ± 10% -43.9% 2957 ± 70% perf-c2c.HITM.local 38031 -26.3% 28019 ± 20% proc-vmstat.nr_slab_unreclaimable 8013 +85.9% 14896 ± 58% vmstat.system.cs 16670 ± 3% -38.5% 10253 ± 70% turbostat.C1 0.16 ± 7% -42.9% 0.09 ± 71% turbostat.CPU%c6 0.11 ± 7% -42.4% 0.06 ± 71% turbostat.Pkg%pc2 58.94 ± 8% +84.3% 108.61 ± 38% sched_debug.cfs_rq:/.load_avg.avg 17.37 ± 29% +154.4% 44.17 ± 66% sched_debug.cfs_rq:/.removed.load_avg.avg 88662 ± 16% -81.3% 16537 ±119% sched_debug.cfs_rq:/.spread0.max 0.00 ± 8% -14.7% 0.00 ± 7% sched_debug.cpu.next_balance.stddev 1330086 ± 4% -40.0% 798527 ± 70% will-it-scale.16.threads 54.99 -36.2% 35.11 ± 70% will-it-scale.16.threads_idle 83130 ± 4% -40.0% 49907 ± 70% will-it-scale.per_thread_ops 1330086 ± 4% -40.0% 798527 ± 70% will-it-scale.workload 0.00 -50.0% 0.00 ± 70% perf-sched.sch_delay.max.ms.wait_for_partner.fifo_open.do_dentry_open.do_open 0.01 ± 18% +97.2% 0.02 ± 21% perf-sched.total_sch_delay.average.ms 258.53 ± 3% -39.4% 156.56 ± 70% perf-sched.wait_and_delay.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64 3.47 ± 3% -33.3% 2.31 ± 30% perf-sched.wait_and_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread 275.59 ± 6% -66.4% 92.71 ± 69% perf-sched.wait_and_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork 258.53 ± 3% -39.4% 156.56 ± 70% perf-sched.wait_time.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64 3.47 ± 3% -33.3% 2.31 ± 30% perf-sched.wait_time.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread 274.83 ± 6% -66.5% 92.08 ± 69% perf-sched.wait_time.avg.ms.smpboot_thread_fn.kthread.ret_from_fork 23.44 ± 9% -41.5% 13.71 ± 70% perf-stat.i.MPKI 2.57 ± 5% -43.2% 1.46 ± 70% perf-stat.i.cpi 1466 ± 4% -81.4% 272.44 ± 70% perf-stat.i.cycles-between-cache-misses 431526 -39.2% 262449 ± 70% perf-stat.i.iTLB-loads 505.11 ± 4% -56.3% 220.66 ± 70% perf-stat.i.metric.K/sec 23.41 ± 9% -41.5% 13.70 ± 70% perf-stat.overall.MPKI 2.57 ± 5% -43.2% 1.46 ± 70% perf-stat.overall.cpi 1463 ± 4% -81.5% 271.05 ± 70% perf-stat.overall.cycles-between-cache-misses 430084 -39.2% 261537 ± 70% perf-stat.ps.iTLB-loads 41.47 -14.1 27.35 ± 70% perf-profile.calltrace.cycles-pp.__open64 40.98 -14.0 26.94 ± 70% perf-profile.calltrace.cycles-pp.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.__open64 41.10 -14.0 27.07 ± 70% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__open64 41.04 -14.0 27.02 ± 70% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__open64 40.93 -14.0 26.91 ± 70% perf-profile.calltrace.cycles-pp.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.__open64 31.17 ± 2% -11.7 19.49 ± 70% perf-profile.calltrace.cycles-pp.unlink 30.89 ± 2% -11.6 19.32 ± 70% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.unlink 30.81 ± 2% -11.6 19.25 ± 70% perf-profile.calltrace.cycles-pp.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink 30.86 ± 2% -11.6 19.30 ± 70% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink 30.28 ± 2% -11.4 18.93 ± 70% perf-profile.calltrace.cycles-pp.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlink 3.95 ± 21% -2.5 1.45 ± 70% perf-profile.calltrace.cycles-pp.do_open.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat 3.23 ± 21% -2.1 1.18 ± 70% perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_filp_open.do_sys_openat2 3.21 ± 10% -1.5 1.67 ± 70% perf-profile.calltrace.cycles-pp.shmem_evict_inode.evict.do_unlinkat.__x64_sys_unlink.do_syscall_64 2.91 ± 13% -1.5 1.40 ± 70% perf-profile.calltrace.cycles-pp.alloc_inode.new_inode.shmem_get_inode.shmem_mknod.lookup_open 1.86 ± 24% -1.2 0.66 ± 70% perf-profile.calltrace.cycles-pp.destroy_inode.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe 2.28 ± 13% -1.2 1.08 ± 70% perf-profile.calltrace.cycles-pp.__filename_parentat.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe 2.17 ± 14% -1.1 1.02 ± 70% perf-profile.calltrace.cycles-pp.path_parentat.__filename_parentat.do_unlinkat.__x64_sys_unlink.do_syscall_64 1.90 ± 18% -1.1 0.77 ± 70% perf-profile.calltrace.cycles-pp.link_path_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat 1.89 ± 16% -1.1 0.77 ± 70% perf-profile.calltrace.cycles-pp.link_path_walk.path_parentat.__filename_parentat.do_unlinkat.__x64_sys_unlink 2.00 ± 12% -1.1 0.91 ± 70% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close 1.99 ± 12% -1.1 0.91 ± 70% perf-profile.calltrace.cycles-pp.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close 1.90 ± 13% -1.0 0.85 ± 70% perf-profile.calltrace.cycles-pp.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64 1.60 ± 19% -1.0 0.61 ± 70% perf-profile.calltrace.cycles-pp.__destroy_inode.destroy_inode.do_unlinkat.__x64_sys_unlink.do_syscall_64 1.61 ± 16% -0.9 0.67 ± 70% perf-profile.calltrace.cycles-pp.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode 1.40 ± 19% -0.9 0.50 ± 71% perf-profile.calltrace.cycles-pp.inode_permission.link_path_walk.path_parentat.__filename_parentat.do_unlinkat 1.36 ± 20% -0.9 0.48 ± 71% perf-profile.calltrace.cycles-pp.generic_permission.inode_permission.link_path_walk.path_parentat.__filename_parentat 2.05 ± 7% -0.9 1.19 ± 70% perf-profile.calltrace.cycles-pp.shmem_reserve_inode.shmem_get_inode.shmem_mknod.lookup_open.open_last_lookups 1.34 ± 23% -0.9 0.48 ± 70% perf-profile.calltrace.cycles-pp.inode_permission.link_path_walk.path_openat.do_filp_open.do_sys_openat2 1.29 ± 24% -0.8 0.46 ± 70% perf-profile.calltrace.cycles-pp.generic_permission.inode_permission.link_path_walk.path_openat.do_filp_open 1.73 -0.7 1.06 ± 70% perf-profile.calltrace.cycles-pp.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat 1.45 ± 10% -0.6 0.88 ± 70% perf-profile.calltrace.cycles-pp._raw_spin_lock.shmem_evict_inode.evict.do_unlinkat.__x64_sys_unlink 1.30 ± 8% -0.6 0.75 ± 71% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.shmem_reserve_inode.shmem_get_inode.shmem_mknod 1.30 ± 4% -0.5 0.76 ± 70% perf-profile.calltrace.cycles-pp.d_alloc_parallel.lookup_open.open_last_lookups.path_openat.do_filp_open 1.19 ± 5% -0.5 0.70 ± 70% perf-profile.calltrace.cycles-pp.d_alloc.d_alloc_parallel.lookup_open.open_last_lookups.path_openat 1.10 ± 2% -0.4 0.65 ± 70% perf-profile.calltrace.cycles-pp.init_file.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2 0.80 ± 18% -0.4 0.35 ± 70% perf-profile.calltrace.cycles-pp.iput.do_unlinkat.__x64_sys_unlink.do_syscall_64.entry_SYSCALL_64_after_hwframe 1.16 ± 2% -0.4 0.75 ± 70% perf-profile.calltrace.cycles-pp.inode_wait_for_writeback.evict.do_unlinkat.__x64_sys_unlink.do_syscall_64 1.01 ± 8% -0.4 0.59 ± 70% perf-profile.calltrace.cycles-pp.__d_alloc.d_alloc.d_alloc_parallel.lookup_open.open_last_lookups 1.13 ± 2% -0.4 0.73 ± 70% perf-profile.calltrace.cycles-pp._raw_spin_lock.inode_wait_for_writeback.evict.do_unlinkat.__x64_sys_unlink 0.91 -0.4 0.51 ± 70% perf-profile.calltrace.cycles-pp.try_to_unlazy.open_last_lookups.path_openat.do_filp_open.do_sys_openat2 0.88 ± 2% -0.4 0.50 ± 70% perf-profile.calltrace.cycles-pp.__legitimize_path.try_to_unlazy.open_last_lookups.path_openat.do_filp_open 0.62 -0.3 0.35 ± 70% perf-profile.calltrace.cycles-pp.security_file_alloc.init_file.alloc_empty_file.path_openat.do_filp_open 0.61 -0.2 0.38 ± 70% perf-profile.calltrace.cycles-pp._raw_spin_lock.new_inode.shmem_get_inode.shmem_mknod.lookup_open 0.59 ± 2% -0.2 0.37 ± 70% perf-profile.calltrace.cycles-pp.__list_add_valid.inode_sb_list_add.new_inode.shmem_get_inode.shmem_mknod 77.22 -15.2 62.07 ± 27% perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe 77.08 -15.1 61.98 ± 27% perf-profile.children.cycles-pp.do_syscall_64 41.54 -14.2 27.39 ± 70% perf-profile.children.cycles-pp.__open64 40.98 -12.4 28.53 ± 58% perf-profile.children.cycles-pp.__x64_sys_openat 40.94 -12.4 28.51 ± 58% perf-profile.children.cycles-pp.do_sys_openat2 31.25 ± 2% -11.7 19.52 ± 70% perf-profile.children.cycles-pp.unlink 30.81 ± 2% -11.6 19.25 ± 70% perf-profile.children.cycles-pp.__x64_sys_unlink 30.30 ± 2% -11.4 18.94 ± 70% perf-profile.children.cycles-pp.do_unlinkat 4.34 ± 26% -2.9 1.42 ± 70% perf-profile.children.cycles-pp.inode_permission 3.96 ± 21% -2.5 1.46 ± 70% perf-profile.children.cycles-pp.do_open 3.80 ± 17% -2.3 1.55 ± 70% perf-profile.children.cycles-pp.link_path_walk 3.44 ± 22% -2.2 1.21 ± 70% perf-profile.children.cycles-pp.generic_permission 3.24 ± 21% -2.1 1.18 ± 70% perf-profile.children.cycles-pp.do_dentry_open 3.21 ± 10% -1.5 1.67 ± 70% perf-profile.children.cycles-pp.shmem_evict_inode 2.91 ± 13% -1.5 1.40 ± 70% perf-profile.children.cycles-pp.alloc_inode 1.95 ± 34% -1.5 0.49 ± 70% perf-profile.children.cycles-pp.__mnt_want_write 1.91 ± 31% -1.4 0.56 ± 70% perf-profile.children.cycles-pp.mnt_want_write 1.87 ± 23% -1.2 0.66 ± 70% perf-profile.children.cycles-pp.destroy_inode 2.28 ± 13% -1.2 1.09 ± 70% perf-profile.children.cycles-pp.__filename_parentat 2.17 ± 14% -1.2 1.02 ± 70% perf-profile.children.cycles-pp.path_parentat 1.60 ± 20% -1.0 0.62 ± 70% perf-profile.children.cycles-pp.__destroy_inode 2.05 ± 7% -0.9 1.19 ± 71% perf-profile.children.cycles-pp.shmem_reserve_inode 1.07 ± 29% -0.8 0.31 ± 70% perf-profile.children.cycles-pp.inode_init_always 1.74 -0.7 1.06 ± 70% perf-profile.children.cycles-pp.alloc_empty_file 1.18 ± 8% -0.6 0.57 ± 70% perf-profile.children.cycles-pp.inode_maybe_inc_iversion 0.87 ± 33% -0.6 0.26 ± 70% perf-profile.children.cycles-pp.may_delete 0.84 ± 25% -0.6 0.29 ± 70% perf-profile.children.cycles-pp.inode_init_owner 1.30 ± 4% -0.5 0.76 ± 70% perf-profile.children.cycles-pp.d_alloc_parallel 0.76 ± 25% -0.5 0.26 ± 70% perf-profile.children.cycles-pp.security_path_unlink 0.92 ± 16% -0.5 0.42 ± 70% perf-profile.children.cycles-pp.iput 0.71 ± 30% -0.5 0.21 ± 70% perf-profile.children.cycles-pp.__fsnotify_parent 0.75 ± 24% -0.5 0.25 ± 70% perf-profile.children.cycles-pp.apparmor_path_unlink 1.20 ± 5% -0.5 0.70 ± 70% perf-profile.children.cycles-pp.d_alloc 0.85 ± 2% -0.5 0.35 ± 71% perf-profile.children.cycles-pp.file_free_rcu 0.81 ± 28% -0.5 0.33 ± 70% perf-profile.children.cycles-pp.fsnotify 1.11 ± 2% -0.5 0.66 ± 70% perf-profile.children.cycles-pp.init_file 1.05 -0.4 0.61 ± 70% perf-profile.children.cycles-pp.try_to_unlazy 0.68 ± 23% -0.4 0.25 ± 70% perf-profile.children.cycles-pp.may_open 1.00 -0.4 0.57 ± 70% perf-profile.children.cycles-pp.__legitimize_path 1.17 ± 2% -0.4 0.75 ± 70% perf-profile.children.cycles-pp.inode_wait_for_writeback 1.01 ± 8% -0.4 0.59 ± 70% perf-profile.children.cycles-pp.__d_alloc 0.55 ± 32% -0.4 0.15 ± 71% perf-profile.children.cycles-pp.fsnotify_perm 0.81 -0.4 0.42 ± 72% perf-profile.children.cycles-pp.lockref_get_not_dead 0.65 ± 7% -0.3 0.31 ± 70% perf-profile.children.cycles-pp.simple_lookup 0.84 ± 3% -0.3 0.54 ± 70% perf-profile.children.cycles-pp.memcg_list_lru_alloc 0.62 -0.3 0.35 ± 70% perf-profile.children.cycles-pp.security_file_alloc 0.38 ± 23% -0.3 0.11 ± 70% perf-profile.children.cycles-pp.drop_nlink 0.68 ± 2% -0.3 0.42 ± 70% perf-profile.children.cycles-pp.strncpy_from_user 0.57 ± 4% -0.3 0.31 ± 70% perf-profile.children.cycles-pp._raw_spin_lock_irq 0.51 ± 4% -0.2 0.28 ± 70% perf-profile.children.cycles-pp.clear_inode 0.54 ± 5% -0.2 0.32 ± 71% perf-profile.children.cycles-pp.security_file_open 0.51 ± 8% -0.2 0.29 ± 70% perf-profile.children.cycles-pp.filp_close 0.51 -0.2 0.29 ± 70% perf-profile.children.cycles-pp.apparmor_file_alloc_security 0.53 ± 5% -0.2 0.31 ± 71% perf-profile.children.cycles-pp.apparmor_file_open 0.37 ± 23% -0.2 0.15 ± 70% perf-profile.children.cycles-pp.mnt_drop_write 0.41 ± 16% -0.2 0.19 ± 70% perf-profile.children.cycles-pp.fsnotify_destroy_marks 0.39 ± 16% -0.2 0.18 ± 70% perf-profile.children.cycles-pp.fsnotify_grab_connector 0.28 ± 22% -0.2 0.10 ± 71% perf-profile.children.cycles-pp.simple_acl_create 0.40 ± 6% -0.2 0.23 ± 71% perf-profile.children.cycles-pp.__entry_text_start 0.26 ± 29% -0.2 0.10 ± 70% perf-profile.children.cycles-pp.__srcu_read_lock 0.41 -0.2 0.25 ± 70% perf-profile.children.cycles-pp.__check_object_size 0.36 ± 5% -0.2 0.21 ± 70% perf-profile.children.cycles-pp.__d_add 0.34 ± 11% -0.1 0.20 ± 70% perf-profile.children.cycles-pp.locks_remove_posix 0.33 -0.1 0.18 ± 71% perf-profile.children.cycles-pp.security_file_free 0.32 ± 2% -0.1 0.18 ± 71% perf-profile.children.cycles-pp.apparmor_file_free_security 0.36 -0.1 0.22 ± 70% perf-profile.children.cycles-pp.lockref_put_or_lock 0.22 ± 23% -0.1 0.08 ± 71% perf-profile.children.cycles-pp.errseq_sample 0.33 ± 8% -0.1 0.20 ± 70% perf-profile.children.cycles-pp.security_path_mknod 0.31 ± 8% -0.1 0.19 ± 70% perf-profile.children.cycles-pp.apparmor_path_mknod 0.18 ± 15% -0.1 0.09 ± 70% perf-profile.children.cycles-pp.file_ra_state_init 0.17 ± 15% -0.1 0.07 ± 70% perf-profile.children.cycles-pp.inode_to_bdi 0.20 ± 4% -0.1 0.11 ± 70% perf-profile.children.cycles-pp.step_into 0.19 ± 2% -0.1 0.11 ± 70% perf-profile.children.cycles-pp.check_heap_object 0.17 ± 5% -0.1 0.09 ± 70% perf-profile.children.cycles-pp.down_write 0.14 ± 5% -0.1 0.08 ± 71% perf-profile.children.cycles-pp.fput 0.12 ± 17% -0.1 0.06 ± 71% perf-profile.children.cycles-pp._find_next_zero_bit 0.11 ± 11% -0.1 0.05 ± 72% perf-profile.children.cycles-pp.set_cached_acl 0.10 ± 12% -0.0 0.05 ± 72% perf-profile.children.cycles-pp.shmem_get_partial_folio 0.12 ± 4% -0.0 0.07 ± 70% perf-profile.children.cycles-pp.refill_obj_stock 0.11 ± 4% -0.0 0.06 ± 70% perf-profile.children.cycles-pp.rcu_all_qs 0.09 ± 5% -0.0 0.04 ± 71% perf-profile.children.cycles-pp.__d_lookup_unhash 0.09 ± 10% -0.0 0.05 ± 72% perf-profile.children.cycles-pp.task_work_add 0.09 -0.0 0.05 ± 71% perf-profile.children.cycles-pp.ihold 0.07 ± 7% -0.0 0.04 ± 71% perf-profile.children.cycles-pp.xas_find 0.26 ± 4% +1.5 1.81 ±115% perf-profile.children.cycles-pp.__list_del_entry_valid 0.05 ± 8% +1.6 1.66 ±132% perf-profile.children.cycles-pp.scheduler_tick 0.08 ± 10% +1.6 1.70 ±127% perf-profile.children.cycles-pp.tick_sched_timer 0.06 ± 7% +1.6 1.69 ±128% perf-profile.children.cycles-pp.update_process_times 0.07 ± 7% +1.6 1.69 ±128% perf-profile.children.cycles-pp.tick_sched_handle 0.14 ± 3% +1.6 1.77 ±119% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt 0.00 +1.6 1.63 ±135% perf-profile.children.cycles-pp.task_tick_fair 0.13 ± 7% +1.6 1.77 ±119% perf-profile.children.cycles-pp.hrtimer_interrupt 0.06 +1.6 1.70 ±127% perf-profile.children.cycles-pp.rcu_nocb_try_bypass 0.11 ± 4% +1.6 1.75 ±121% perf-profile.children.cycles-pp.__hrtimer_run_queues 0.49 ± 5% +2.0 2.50 ± 63% perf-profile.children.cycles-pp.__call_rcu_common 3.14 ± 4% +3.7 6.86 ± 21% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt 3.15 ± 5% +3.7 6.87 ± 21% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt 0.54 ± 4% +3.9 4.41 ± 6% perf-profile.children.cycles-pp.__slab_free 3.30 ± 23% -2.2 1.11 ± 70% perf-profile.self.cycles-pp.generic_permission 5.20 -2.0 3.22 ± 70% perf-profile.self.cycles-pp._raw_spin_lock 1.91 ± 34% -1.4 0.46 ± 70% perf-profile.self.cycles-pp.__mnt_want_write 1.30 ± 37% -0.9 0.40 ± 70% perf-profile.self.cycles-pp.current_time 1.26 ± 20% -0.8 0.44 ± 70% perf-profile.self.cycles-pp.__destroy_inode 0.97 ± 31% -0.7 0.25 ± 70% perf-profile.self.cycles-pp.inode_init_always 0.81 ± 44% -0.7 0.15 ± 70% perf-profile.self.cycles-pp.inode_permission 1.15 ± 8% -0.6 0.54 ± 70% perf-profile.self.cycles-pp.inode_maybe_inc_iversion 0.83 ± 29% -0.6 0.24 ± 70% perf-profile.self.cycles-pp.vfs_unlink 0.83 ± 30% -0.6 0.24 ± 71% perf-profile.self.cycles-pp.lookup_open 0.81 ± 26% -0.5 0.27 ± 70% perf-profile.self.cycles-pp.inode_init_owner 0.81 ± 23% -0.5 0.27 ± 70% perf-profile.self.cycles-pp.__fput 0.75 ± 21% -0.5 0.24 ± 71% perf-profile.self.cycles-pp.do_dentry_open 0.73 ± 25% -0.5 0.23 ± 70% perf-profile.self.cycles-pp.apparmor_path_unlink 0.70 ± 31% -0.5 0.20 ± 70% perf-profile.self.cycles-pp.__fsnotify_parent 0.84 -0.5 0.35 ± 71% perf-profile.self.cycles-pp.file_free_rcu 0.79 ± 29% -0.5 0.31 ± 70% perf-profile.self.cycles-pp.fsnotify 0.62 ± 31% -0.5 0.16 ± 71% perf-profile.self.cycles-pp.open_last_lookups 0.54 ± 32% -0.4 0.14 ± 71% perf-profile.self.cycles-pp.fsnotify_perm 0.80 -0.4 0.40 ± 71% perf-profile.self.cycles-pp.lockref_get_not_dead 0.52 ± 25% -0.3 0.18 ± 71% perf-profile.self.cycles-pp.shmem_evict_inode 0.44 ± 30% -0.3 0.11 ± 70% perf-profile.self.cycles-pp.iput 0.56 ± 13% -0.3 0.26 ± 70% perf-profile.self.cycles-pp.link_path_walk 0.57 ± 4% -0.3 0.31 ± 70% perf-profile.self.cycles-pp._raw_spin_lock_irq 0.37 ± 24% -0.3 0.11 ± 70% perf-profile.self.cycles-pp.drop_nlink 0.39 ± 27% -0.3 0.13 ± 71% perf-profile.self.cycles-pp.may_delete 0.31 ± 43% -0.2 0.07 ± 70% perf-profile.self.cycles-pp.dentry_unlink_inode 0.38 ± 18% -0.2 0.15 ± 70% perf-profile.self.cycles-pp.mnt_want_write 0.52 ± 7% -0.2 0.30 ± 71% perf-profile.self.cycles-pp.apparmor_file_open 0.36 ± 22% -0.2 0.14 ± 70% perf-profile.self.cycles-pp.mnt_drop_write 0.34 ± 21% -0.2 0.13 ± 71% perf-profile.self.cycles-pp.__d_alloc 0.49 -0.2 0.27 ± 70% perf-profile.self.cycles-pp.apparmor_file_alloc_security 0.29 ± 31% -0.2 0.09 ± 71% perf-profile.self.cycles-pp.shmem_reserve_inode 0.48 ± 5% -0.2 0.29 ± 70% perf-profile.self.cycles-pp.init_file 0.26 ± 26% -0.2 0.08 ± 70% perf-profile.self.cycles-pp.simple_lookup 0.41 ± 7% -0.2 0.24 ± 70% perf-profile.self.cycles-pp.memcg_list_lru_alloc 0.26 ± 29% -0.2 0.09 ± 70% perf-profile.self.cycles-pp.__srcu_read_lock 0.34 ± 10% -0.2 0.18 ± 71% perf-profile.self.cycles-pp.locks_remove_posix 0.31 -0.1 0.17 ± 71% perf-profile.self.cycles-pp.apparmor_file_free_security 0.21 ± 24% -0.1 0.07 ± 70% perf-profile.self.cycles-pp.errseq_sample 0.35 ± 3% -0.1 0.22 ± 70% perf-profile.self.cycles-pp.mod_objcg_state 0.30 ± 4% -0.1 0.17 ± 70% perf-profile.self.cycles-pp.lockref_put_or_lock 0.30 ± 7% -0.1 0.17 ± 70% perf-profile.self.cycles-pp.apparmor_path_mknod 0.27 -0.1 0.15 ± 70% perf-profile.self.cycles-pp.strncpy_from_user 0.16 ± 18% -0.1 0.07 ± 70% perf-profile.self.cycles-pp.inode_to_bdi 0.19 ± 8% -0.1 0.10 ± 70% perf-profile.self.cycles-pp.__entry_text_start 0.14 ± 3% -0.1 0.08 ± 70% perf-profile.self.cycles-pp.step_into 0.13 ± 6% -0.1 0.07 ± 70% perf-profile.self.cycles-pp.down_write 0.11 ± 19% -0.1 0.05 ± 72% perf-profile.self.cycles-pp._find_next_zero_bit 0.10 ± 8% -0.0 0.05 ± 71% perf-profile.self.cycles-pp.set_cached_acl 0.11 ± 4% -0.0 0.07 ± 70% perf-profile.self.cycles-pp.refill_obj_stock 0.10 ± 4% -0.0 0.06 ± 70% perf-profile.self.cycles-pp.__filename_parentat 0.09 ± 5% -0.0 0.05 ± 72% perf-profile.self.cycles-pp.rcu_all_qs 0.09 ± 5% -0.0 0.05 ± 72% perf-profile.self.cycles-pp.task_work_add 0.09 ± 5% -0.0 0.05 ± 70% perf-profile.self.cycles-pp.ihold 0.08 ± 5% -0.0 0.04 ± 71% perf-profile.self.cycles-pp.__d_lookup_unhash 0.06 ± 7% -0.0 0.03 ± 70% perf-profile.self.cycles-pp.exit_to_user_mode_loop 0.06 -0.0 0.03 ± 70% perf-profile.self.cycles-pp.getname_flags 0.26 ± 3% +1.5 1.80 ±116% perf-profile.self.cycles-pp.__list_del_entry_valid 0.02 ±141% +1.7 1.68 ±129% perf-profile.self.cycles-pp.rcu_nocb_try_bypass 0.53 ± 5% +3.8 4.36 ± 7% perf-profile.self.cycles-pp.__slab_free *************************************************************************************************** lkp-skl-d08: 36 threads 1 sockets Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz (Skylake) with 32G memory ========================================================================================= class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime: filesystem/gcc-12/performance/1SSD/ext4/x86_64-rhel-8.3/10%/debian-11.1-x86_64-20220510.cgz/lkp-skl-d08/handle/stress-ng/60s commit: c2c3172c26 ("shmem: Refactor shmem_symlink()") a1a690e009 ("shmem: stable directory offsets") c2c3172c269f808d a1a690e009744e4526526b2f838 ---------------- --------------------------- %stddev %change %stddev \ | \ 5.92 -1.2% 5.85 iostat.cpu.system 88.56 ± 21% -29.4% 62.51 ± 39% sched_debug.cfs_rq:/.util_est_enqueued.avg 1294 ± 10% -21.2% 1020 ± 13% sched_debug.cpu.curr->pid.avg 11210546 +3.0% 11542342 stress-ng.handle.ops 186841 +3.0% 192371 stress-ng.handle.ops_per_sec 100.40 ± 53% -51.2% 49.00 ± 74% proc-vmstat.nr_dirtied 488851 ± 5% -8.4% 447861 proc-vmstat.numa_hit 480285 ± 5% -6.8% 447764 proc-vmstat.numa_local 750318 ± 6% -8.4% 687348 proc-vmstat.pgalloc_normal 710717 ± 7% -9.0% 646894 proc-vmstat.pgfree 1.43e+09 -1.7% 1.406e+09 perf-stat.i.branch-instructions 1.25 -0.0 1.20 perf-stat.i.branch-miss-rate% 19188631 -5.1% 18207135 perf-stat.i.branch-misses 0.15 +0.0 0.15 perf-stat.i.dTLB-load-miss-rate% 2781970 +2.6% 2854604 perf-stat.i.dTLB-load-misses 1.904e+09 -1.5% 1.875e+09 perf-stat.i.dTLB-loads 1.139e+09 -1.7% 1.12e+09 perf-stat.i.dTLB-stores 67.67 ± 10% +7.1 74.72 perf-stat.i.iTLB-load-miss-rate% 1568674 ± 46% -32.7% 1055235 ± 14% perf-stat.i.iTLB-loads 7.352e+09 -1.4% 7.247e+09 perf-stat.i.instructions 124.64 -1.9% 122.30 perf-stat.i.metric.M/sec 41311 ± 5% -11.0% 36758 ± 2% perf-stat.i.node-stores 1.34 -0.0 1.29 perf-stat.overall.branch-miss-rate% 0.15 +0.0 0.15 perf-stat.overall.dTLB-load-miss-rate% 68.34 ± 10% +7.3 75.68 ± 2% perf-stat.overall.iTLB-load-miss-rate% 1.407e+09 -1.7% 1.383e+09 perf-stat.ps.branch-instructions 18876614 -5.1% 17906237 perf-stat.ps.branch-misses 2737798 +2.6% 2809345 perf-stat.ps.dTLB-load-misses 1.873e+09 -1.5% 1.845e+09 perf-stat.ps.dTLB-loads 1.121e+09 -1.7% 1.102e+09 perf-stat.ps.dTLB-stores 1543675 ± 46% -32.8% 1037667 ± 14% perf-stat.ps.iTLB-loads 7.235e+09 -1.4% 7.13e+09 perf-stat.ps.instructions 40647 ± 5% -11.1% 36139 ± 3% perf-stat.ps.node-stores 4.557e+11 -1.2% 4.502e+11 perf-stat.total.instructions 0.01 -20.0% 0.00 perf-sched.sch_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork 0.08 ± 10% -30.6% 0.06 ± 9% perf-sched.wait_and_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt 0.19 ± 5% -26.8% 0.14 ± 3% perf-sched.wait_and_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt 0.08 ± 20% -30.2% 0.06 ± 15% perf-sched.wait_time.avg.ms.__cond_resched.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare 0.08 ± 10% -31.9% 0.06 ± 9% perf-sched.wait_time.avg.ms.__cond_resched.__kmem_cache_alloc_node.__kmalloc.do_sys_name_to_handle.__x64_sys_name_to_handle_at 0.08 ± 12% -31.4% 0.06 ± 8% perf-sched.wait_time.avg.ms.__cond_resched.__kmem_cache_alloc_node.__kmalloc.handle_to_path.do_handle_open 0.08 ± 9% -29.4% 0.06 ± 14% perf-sched.wait_time.avg.ms.__cond_resched.apparmor_file_alloc_security.security_file_alloc.init_file.alloc_empty_file 0.08 ± 9% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.dentry_kill.dput.dcache_dir_close.__fput 0.08 ± 10% -30.5% 0.06 ± 7% perf-sched.wait_time.avg.ms.__cond_resched.dput.__fput.task_work_run.exit_to_user_mode_loop 0.08 ± 11% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.dput.dcache_dir_close.__fput.task_work_run 0.08 ± 10% -30.3% 0.06 ± 8% perf-sched.wait_time.avg.ms.__cond_resched.dput.path_put.__x64_sys_name_to_handle_at.do_syscall_64 0.08 ± 9% -34.9% 0.05 ± 8% perf-sched.wait_time.avg.ms.__cond_resched.dput.path_put.do_handle_open.do_syscall_64 0.08 ± 10% -29.6% 0.05 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.dput.terminate_walk.path_openat.do_file_open_root 0.08 ± 9% -30.6% 0.06 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.dput.terminate_walk.path_openat.do_filp_open 0.08 ± 10% -29.1% 0.06 ± 9% perf-sched.wait_time.avg.ms.__cond_resched.ilookup5.shmem_fh_to_dentry.exportfs_decode_fh_raw.exportfs_decode_fh 0.08 ± 18% -30.9% 0.05 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_file_open_root 0.07 ± 7% -23.8% 0.06 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open 0.08 ± 10% -32.2% 0.05 ± 9% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.getname_flags.part.0 0.08 ± 11% -33.4% 0.05 ± 12% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.getname_kernel.do_file_open_root.file_open_root 0.08 ± 11% -30.8% 0.06 ± 8% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.security_file_alloc.init_file.alloc_empty_file 0.08 ± 10% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru 0.08 ± 11% -34.6% 0.05 ± 11% perf-sched.wait_time.avg.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode 0.08 ± 10% -30.6% 0.06 ± 9% perf-sched.wait_time.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt 0.08 ± 11% -32.3% 0.05 ± 9% perf-sched.wait_time.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64 0.13 ± 29% -43.2% 0.07 ± 22% perf-sched.wait_time.max.ms.__cond_resched.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare 0.18 ± 11% -22.3% 0.14 ± 12% perf-sched.wait_time.max.ms.__cond_resched.__kmem_cache_alloc_node.__kmalloc.do_sys_name_to_handle.__x64_sys_name_to_handle_at 0.17 ± 9% -28.2% 0.12 ± 6% perf-sched.wait_time.max.ms.__cond_resched.__kmem_cache_alloc_node.__kmalloc.handle_to_path.do_handle_open 0.13 ± 14% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.dentry_kill.dput.dcache_dir_close.__fput 0.15 ± 9% -26.8% 0.11 ± 16% perf-sched.wait_time.max.ms.__cond_resched.dput.__fput.task_work_run.exit_to_user_mode_loop 0.11 ± 32% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.dput.dcache_dir_close.__fput.task_work_run 0.17 ± 2% -26.6% 0.12 ± 7% perf-sched.wait_time.max.ms.__cond_resched.dput.path_put.__x64_sys_name_to_handle_at.do_syscall_64 0.16 ± 10% -42.7% 0.09 ± 18% perf-sched.wait_time.max.ms.__cond_resched.dput.path_put.do_handle_open.do_syscall_64 0.16 ± 10% -27.0% 0.12 ± 6% perf-sched.wait_time.max.ms.__cond_resched.dput.terminate_walk.path_openat.do_file_open_root 0.16 ± 6% -24.1% 0.12 ± 9% perf-sched.wait_time.max.ms.__cond_resched.ilookup5.shmem_fh_to_dentry.exportfs_decode_fh_raw.exportfs_decode_fh 0.13 ± 27% -36.6% 0.08 ± 24% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_file_open_root 0.13 ± 16% -27.5% 0.10 ± 20% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.alloc_empty_file.path_openat.do_filp_open 0.18 ± 9% -23.2% 0.14 ± 13% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.getname_flags.part.0 0.15 ± 11% -35.8% 0.10 ± 15% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.getname_kernel.do_file_open_root.file_open_root 0.16 ± 7% -35.5% 0.10 ± 24% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.security_file_alloc.init_file.alloc_empty_file 0.17 ± 10% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru 0.16 ± 8% -36.2% 0.10 ± 21% perf-sched.wait_time.max.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode 0.19 ± 5% -26.8% 0.14 ± 3% perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt 0.18 ± 4% -31.4% 0.12 ± 8% perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64 1.42 ± 6% -0.8 0.59 ± 3% perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_filp_open.do_sys_openat2 1.89 ± 4% -0.8 1.07 ± 5% perf-profile.calltrace.cycles-pp.do_open.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat 4.24 ± 3% -0.8 3.43 ± 2% perf-profile.calltrace.cycles-pp.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64 4.19 ± 3% -0.8 3.38 ± 2% perf-profile.calltrace.cycles-pp.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64 3.46 ± 3% -0.8 2.68 ± 3% perf-profile.calltrace.cycles-pp.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe 3.36 ± 3% -0.8 2.59 ± 3% perf-profile.calltrace.cycles-pp.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64 6.64 ± 3% -0.8 5.88 ± 2% perf-profile.calltrace.cycles-pp.open64 5.39 ± 3% -0.8 4.63 ± 2% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.open64 4.95 ± 3% -0.8 4.19 ± 2% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64 5.48 ± 4% -0.7 4.80 ± 3% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close 6.32 ± 3% -0.6 5.68 ± 2% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__close 8.83 ± 3% -0.5 8.29 perf-profile.calltrace.cycles-pp.__close 4.33 ± 4% -0.5 3.82 ± 5% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close 2.36 ± 5% -0.5 1.86 ± 8% perf-profile.calltrace.cycles-pp.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode 2.93 ± 5% -0.5 2.45 ± 6% perf-profile.calltrace.cycles-pp.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe 2.76 ± 5% -0.5 2.28 ± 7% perf-profile.calltrace.cycles-pp.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64 2.98 ± 5% -0.5 2.50 ± 6% perf-profile.calltrace.cycles-pp.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close 1.17 ± 13% -0.3 0.85 ± 17% perf-profile.calltrace.cycles-pp.rcu_core.__do_softirq.run_ksoftirqd.smpboot_thread_fn.kthread 1.00 ± 3% -0.1 0.85 ± 9% perf-profile.calltrace.cycles-pp.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close 0.77 ± 4% -0.1 0.66 ± 13% perf-profile.calltrace.cycles-pp.filp_close.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close 1.17 ± 6% +0.1 1.29 ± 5% perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_file_open_root.file_open_root 3.33 ± 5% +0.2 3.56 ± 2% perf-profile.calltrace.cycles-pp.do_file_open_root.file_open_root.do_handle_open.do_syscall_64.entry_SYSCALL_64_after_hwframe 3.38 ± 5% +0.2 3.61 ± 2% perf-profile.calltrace.cycles-pp.file_open_root.do_handle_open.do_syscall_64.entry_SYSCALL_64_after_hwframe.open_by_handle_at 4.26 ± 3% -0.8 3.44 ± 2% perf-profile.children.cycles-pp.__x64_sys_openat 4.21 ± 3% -0.8 3.40 ± 2% perf-profile.children.cycles-pp.do_sys_openat2 3.47 ± 3% -0.8 2.69 ± 3% perf-profile.children.cycles-pp.do_filp_open 6.69 ± 3% -0.8 5.93 ± 2% perf-profile.children.cycles-pp.open64 2.59 ± 5% -0.7 1.89 ± 3% perf-profile.children.cycles-pp.do_dentry_open 3.35 ± 4% -0.7 2.66 ± 3% perf-profile.children.cycles-pp.do_open 6.40 ± 4% -0.6 5.80 ± 2% perf-profile.children.cycles-pp.path_openat 8.94 ± 3% -0.5 8.41 ± 2% perf-profile.children.cycles-pp.__close 2.38 ± 5% -0.5 1.88 ± 8% perf-profile.children.cycles-pp.__fput 2.95 ± 5% -0.5 2.46 ± 6% perf-profile.children.cycles-pp.exit_to_user_mode_loop 2.77 ± 5% -0.5 2.30 ± 7% perf-profile.children.cycles-pp.task_work_run 3.20 ± 5% -0.4 2.75 ± 5% perf-profile.children.cycles-pp.exit_to_user_mode_prepare 2.89 ± 7% -0.4 2.44 ± 4% perf-profile.children.cycles-pp.dput 0.36 ± 8% -0.2 0.14 ± 16% perf-profile.children.cycles-pp.lockref_put_return 1.00 ± 3% -0.1 0.86 ± 10% perf-profile.children.cycles-pp.__x64_sys_close 0.77 ± 4% -0.1 0.66 ± 13% perf-profile.children.cycles-pp.filp_close 0.35 ± 15% -0.1 0.24 ± 16% perf-profile.children.cycles-pp.__slab_free 0.44 ± 13% -0.1 0.33 ± 8% perf-profile.children.cycles-pp.shmem_encode_fh 0.49 ± 6% -0.1 0.39 ± 3% perf-profile.children.cycles-pp.memcg_slab_post_alloc_hook 0.70 ± 7% -0.1 0.60 ± 9% perf-profile.children.cycles-pp.lockref_get 0.39 ± 8% -0.1 0.30 ± 24% perf-profile.children.cycles-pp.locks_remove_posix 0.34 ± 7% -0.1 0.26 ± 5% perf-profile.children.cycles-pp.__call_rcu_common 0.13 ± 8% -0.1 0.07 ± 9% perf-profile.children.cycles-pp.___slab_alloc 0.25 ± 12% -0.0 0.20 ± 11% perf-profile.children.cycles-pp.get_obj_cgroup_from_current 0.37 ± 10% -0.0 0.33 ± 9% perf-profile.children.cycles-pp.rep_movs_alternative 0.08 ± 16% -0.0 0.05 ± 54% perf-profile.children.cycles-pp.obj_cgroup_charge 0.16 ± 12% -0.0 0.13 ± 4% perf-profile.children.cycles-pp.close_fd 0.13 ± 4% -0.0 0.10 ± 14% perf-profile.children.cycles-pp.is_vmalloc_addr 3.34 ± 5% +0.2 3.57 ± 2% perf-profile.children.cycles-pp.do_file_open_root 0.36 ± 8% -0.2 0.13 ± 19% perf-profile.self.cycles-pp.lockref_put_return 0.34 ± 15% -0.1 0.23 ± 16% perf-profile.self.cycles-pp.__slab_free 0.44 ± 13% -0.1 0.33 ± 10% perf-profile.self.cycles-pp.shmem_encode_fh 0.69 ± 7% -0.1 0.60 ± 9% perf-profile.self.cycles-pp.lockref_get 0.39 ± 7% -0.1 0.30 ± 25% perf-profile.self.cycles-pp.locks_remove_posix 0.37 ± 7% -0.1 0.29 ± 5% perf-profile.self.cycles-pp.memcg_slab_post_alloc_hook 0.20 ± 10% -0.1 0.15 ± 9% perf-profile.self.cycles-pp.__call_rcu_common 0.13 ± 21% -0.0 0.09 ± 28% perf-profile.self.cycles-pp.__legitimize_path 0.13 ± 6% -0.0 0.10 ± 14% perf-profile.self.cycles-pp.is_vmalloc_addr 0.10 ± 7% -0.0 0.08 ± 7% perf-profile.self.cycles-pp.do_handle_open 0.15 ± 11% +0.0 0.18 ± 5% perf-profile.self.cycles-pp.init_file 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