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PH8PR11MB6779.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Sep 2023 02:10:36.3193 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: /qxiAg/2TOi7ALsoUEkDZnD79ZZh8OsXWPf+imlNgzyIrKcpFbouac+xwJNiNUjm90uFr8BNSPdgs/D/+xAVWg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR11MB5294 X-OriginatorOrg: intel.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, kernel test robot noticed a 68.5% improvement of stress-ng.iomix.ops_per_sec on: commit: 77d20c685b6baeb942606a93ed861c191381b73e ("btrfs: do not block starts waiting on previous transaction commit") 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: 10% disk: 1HDD testtime: 60s fs: btrfs class: filesystem test: iomix cpufreq_governor: performance Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20230926/202309261605.687d7dbf-oliver.sang@intel.com ========================================================================================= class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime: filesystem/gcc-12/performance/1HDD/btrfs/x86_64-rhel-8.3/10%/debian-11.1-x86_64-20220510.cgz/lkp-icl-2sp8/iomix/stress-ng/60s commit: ee34a82e89 ("btrfs: release path before inode lookup during the ino lookup ioctl") 77d20c685b ("btrfs: do not block starts waiting on previous transaction commit") ee34a82e890a7bab 77d20c685b6baeb942606a93ed8 ---------------- --------------------------- %stddev %change %stddev \ | \ 10.78 +3.2 13.99 mpstat.cpu.all.iowait% 1.10 ± 4% +0.4 1.51 ± 7% mpstat.cpu.all.sys% 122474 ± 6% -16.0% 102858 ± 8% numa-vmstat.node0.nr_dirtied 122310 ± 6% -16.0% 102793 ± 8% numa-vmstat.node0.nr_written 87.40 -4.0% 83.87 iostat.cpu.idle 10.47 +29.7% 13.58 iostat.cpu.iowait 1.77 ± 2% +22.8% 2.18 ± 5% iostat.cpu.system 238990 ± 2% -10.3% 214415 proc-vmstat.nr_dirtied 238672 ± 2% -10.2% 214270 proc-vmstat.nr_written 1293769 ± 3% -9.7% 1167757 proc-vmstat.pgpgout 15599 ± 19% +23.6% 19279 ± 12% sched_debug.cfs_rq:/.min_vruntime.max 25733 ± 5% +22.7% 31572 ± 11% sched_debug.cpu.nr_switches.avg 26395 ± 11% +34.8% 35569 ± 15% sched_debug.cpu.nr_switches.stddev 89.50 ± 2% +17.9% 105.50 ± 4% turbostat.Avg_MHz 2.49 ± 2% +0.4 2.93 ± 4% turbostat.Busy% 59654 ± 22% +45.7% 86940 ± 18% turbostat.POLL 19462 ± 3% -9.1% 17692 vmstat.io.bo 6.33 ± 7% +36.8% 8.67 ± 5% vmstat.procs.b 45360 ± 5% +27.3% 57748 ± 12% vmstat.system.cs 85369 +6.1% 90557 ± 3% vmstat.system.in 938131 ± 4% +68.8% 1583382 ± 7% stress-ng.iomix.ops 15567 ± 4% +68.5% 26232 ± 7% stress-ng.iomix.ops_per_sec 1514861 ± 2% -12.6% 1323912 ± 2% stress-ng.time.file_system_outputs 70.50 ± 5% +38.8% 97.83 ± 7% stress-ng.time.percent_of_cpu_this_job_got 40.18 ± 5% +41.1% 56.70 ± 7% stress-ng.time.system_time 1360628 ± 6% +29.0% 1755242 ± 13% stress-ng.time.voluntary_context_switches 9.543e+08 +25.2% 1.195e+09 ± 4% perf-stat.i.branch-instructions 0.64 -0.1 0.59 perf-stat.i.branch-miss-rate% 8915744 ± 2% +6.0% 9448037 ± 2% perf-stat.i.branch-misses 5192643 ± 8% +24.8% 6481794 ± 8% perf-stat.i.cache-misses 19351415 ± 2% +17.5% 22733847 ± 5% perf-stat.i.cache-references 47660 ± 5% +27.3% 60669 ± 13% perf-stat.i.context-switches 1.13 ± 3% -7.4% 1.05 perf-stat.i.cpi 5e+09 ± 3% +20.8% 6.04e+09 ± 5% perf-stat.i.cpu-cycles 0.01 ± 4% -0.0 0.01 ± 7% perf-stat.i.dTLB-load-miss-rate% 1.147e+09 ± 2% +29.6% 1.486e+09 ± 4% perf-stat.i.dTLB-loads 0.01 ± 4% -0.0 0.00 ± 3% perf-stat.i.dTLB-store-miss-rate% 6.597e+08 ± 2% +31.5% 8.673e+08 ± 5% perf-stat.i.dTLB-stores 4.757e+09 ± 2% +27.1% 6.044e+09 ± 4% perf-stat.i.instructions 0.93 ± 2% +7.6% 1.00 perf-stat.i.ipc 0.08 ± 3% +20.9% 0.09 ± 5% perf-stat.i.metric.GHz 343.06 ± 4% +17.4% 402.77 ± 6% perf-stat.i.metric.K/sec 43.11 ± 2% +28.6% 55.43 ± 4% perf-stat.i.metric.M/sec 697436 ± 11% +36.0% 948334 ± 10% perf-stat.i.node-store-misses 381863 ± 3% +15.5% 441021 ± 4% perf-stat.i.node-stores 0.93 ± 2% -0.1 0.79 ± 2% perf-stat.overall.branch-miss-rate% 1.05 ± 2% -4.9% 1.00 perf-stat.overall.cpi 0.01 ± 3% -0.0 0.01 ± 8% perf-stat.overall.dTLB-load-miss-rate% 0.01 ± 3% -0.0 0.00 ± 4% perf-stat.overall.dTLB-store-miss-rate% 0.95 ± 2% +5.1% 1.00 perf-stat.overall.ipc 64.46 ± 2% +3.7 68.15 ± 2% perf-stat.overall.node-store-miss-rate% 9.395e+08 +25.2% 1.176e+09 ± 4% perf-stat.ps.branch-instructions 8780421 ± 2% +5.9% 9294725 ± 2% perf-stat.ps.branch-misses 5111666 ± 8% +24.8% 6379090 ± 8% perf-stat.ps.cache-misses 19051781 ± 2% +17.4% 22373117 ± 5% perf-stat.ps.cache-references 46925 ± 5% +27.2% 59709 ± 13% perf-stat.ps.context-switches 4.922e+09 ± 3% +20.8% 5.944e+09 ± 5% perf-stat.ps.cpu-cycles 1.129e+09 ± 2% +29.6% 1.463e+09 ± 4% perf-stat.ps.dTLB-loads 6.493e+08 ± 2% +31.4% 8.535e+08 ± 5% perf-stat.ps.dTLB-stores 4.683e+09 ± 2% +27.0% 5.947e+09 ± 4% perf-stat.ps.instructions 686515 ± 11% +35.9% 933307 ± 10% perf-stat.ps.node-store-misses 375908 ± 3% +15.5% 434029 ± 4% perf-stat.ps.node-stores 2.981e+11 ± 2% +26.0% 3.757e+11 ± 4% perf-stat.total.instructions 0.02 ± 29% +55.5% 0.03 ± 13% perf-sched.sch_delay.max.ms.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.__btrfs_tree_read_lock 0.01 ± 34% +110.7% 0.03 ± 16% perf-sched.sch_delay.max.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write.vfs_fileattr_set 0.01 ± 25% -65.8% 0.00 ±101% perf-sched.sch_delay.max.ms.wait_current_trans.start_transaction.btrfs_attach_transaction_barrier.btrfs_sync_fs 0.01 ± 42% -67.6% 0.00 ± 17% perf-sched.sch_delay.max.ms.wait_current_trans.start_transaction.btrfs_sync_file.btrfs_do_write_iter 9.34 ± 45% +57.0% 14.66 ± 7% perf-sched.wait_and_delay.avg.ms.btrfs_start_ordered_extent.btrfs_wait_ordered_range.btrfs_sync_file.btrfs_do_write_iter 84.12 ± 3% -23.7% 64.22 ± 16% perf-sched.wait_and_delay.avg.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep 34.50 ± 10% -15.3% 29.23 ± 7% perf-sched.wait_and_delay.avg.ms.io_schedule.folio_wait_bit_common.extent_write_cache_pages.extent_writepages 92.62 ± 10% -22.6% 71.73 ± 8% perf-sched.wait_and_delay.avg.ms.io_schedule.folio_wait_bit_common.filemap_update_page.filemap_get_pages 89.69 ± 7% -18.5% 73.14 ± 6% perf-sched.wait_and_delay.avg.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.__fdget_pos 0.71 ± 20% -42.5% 0.41 ± 32% perf-sched.wait_and_delay.avg.ms.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.__btrfs_tree_read_lock 26.52 ± 39% -100.0% 0.00 perf-sched.wait_and_delay.avg.ms.wait_current_trans.start_transaction.btrfs_attach_transaction_barrier.btrfs_sync_fs 81.44 ± 9% +37.4% 111.87 ± 13% perf-sched.wait_and_delay.avg.ms.wait_for_commit.btrfs_commit_transaction.iterate_supers.ksys_sync 105.65 ± 5% -66.7% 35.14 ±102% perf-sched.wait_and_delay.avg.ms.wait_for_commit.btrfs_wait_for_commit.btrfs_attach_transaction_barrier.btrfs_sync_fs 5.50 ±146% +390.9% 27.00 ± 19% perf-sched.wait_and_delay.count.btrfs_start_ordered_extent.btrfs_wait_ordered_range.btrfs_sync_file.__x64_sys_fsync 1332 ± 5% +26.9% 1690 ± 20% perf-sched.wait_and_delay.count.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep 895.33 ± 5% +25.4% 1123 ± 6% perf-sched.wait_and_delay.count.io_schedule.rq_qos_wait.wbt_wait.__rq_qos_throttle 1306 ± 10% +18.7% 1550 ± 6% perf-sched.wait_and_delay.count.schedule_preempt_disabled.__mutex_lock.constprop.0.__fdget_pos 30.17 ± 15% -100.0% 0.00 perf-sched.wait_and_delay.count.wait_current_trans.start_transaction.btrfs_attach_transaction_barrier.btrfs_sync_fs 71.83 ± 11% +167.7% 192.33 ± 7% perf-sched.wait_and_delay.count.wait_current_trans.start_transaction.btrfs_finish_one_ordered.btrfs_work_helper 51.83 ± 13% +129.3% 118.83 ± 22% perf-sched.wait_and_delay.count.wait_for_commit.btrfs_commit_transaction.iterate_supers.ksys_sync 74.33 ± 8% -94.4% 4.17 ±114% perf-sched.wait_and_delay.count.wait_for_commit.btrfs_wait_for_commit.btrfs_attach_transaction_barrier.btrfs_sync_fs 624.35 ± 14% -30.4% 434.53 ± 10% perf-sched.wait_and_delay.max.ms.io_schedule.folio_wait_bit_common.filemap_update_page.filemap_get_pages 1024 ± 18% -32.9% 688.00 ± 26% perf-sched.wait_and_delay.max.ms.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.__btrfs_tree_read_lock 142.62 ± 54% -100.0% 0.00 perf-sched.wait_and_delay.max.ms.wait_current_trans.start_transaction.btrfs_attach_transaction_barrier.btrfs_sync_fs 245.46 ± 10% -72.0% 68.69 ±103% perf-sched.wait_and_delay.max.ms.wait_for_commit.btrfs_wait_for_commit.btrfs_attach_transaction_barrier.btrfs_sync_fs 2.31 ± 97% -86.8% 0.30 ±120% perf-sched.wait_time.avg.ms.btrfs_commit_transaction.iterate_supers.ksys_sync.__x64_sys_sync 14.02 ± 9% -39.5% 8.48 ± 16% perf-sched.wait_time.avg.ms.btrfs_start_ordered_extent.btrfs_run_ordered_extent_work.btrfs_work_helper.process_one_work 1.09 ± 43% +133.9% 2.55 ± 31% perf-sched.wait_time.avg.ms.btrfs_start_ordered_extent.btrfs_wait_ordered_range.__btrfs_wait_cache_io.btrfs_write_dirty_block_groups 11.14 ± 5% +31.5% 14.66 ± 7% perf-sched.wait_time.avg.ms.btrfs_start_ordered_extent.btrfs_wait_ordered_range.btrfs_sync_file.btrfs_do_write_iter 84.12 ± 3% -23.7% 64.22 ± 16% perf-sched.wait_time.avg.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep 34.49 ± 10% -15.3% 29.23 ± 7% perf-sched.wait_time.avg.ms.io_schedule.folio_wait_bit_common.extent_write_cache_pages.extent_writepages 92.62 ± 10% -22.6% 71.73 ± 8% perf-sched.wait_time.avg.ms.io_schedule.folio_wait_bit_common.filemap_update_page.filemap_get_pages 89.68 ± 7% -18.5% 73.13 ± 6% perf-sched.wait_time.avg.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.__fdget_pos 0.71 ± 20% -42.5% 0.41 ± 32% perf-sched.wait_time.avg.ms.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.__btrfs_tree_read_lock 26.51 ± 39% -97.6% 0.63 ±159% perf-sched.wait_time.avg.ms.wait_current_trans.start_transaction.btrfs_attach_transaction_barrier.btrfs_sync_fs 81.44 ± 9% +37.4% 111.86 ± 13% perf-sched.wait_time.avg.ms.wait_for_commit.btrfs_commit_transaction.iterate_supers.ksys_sync 105.64 ± 5% -66.7% 35.13 ±102% perf-sched.wait_time.avg.ms.wait_for_commit.btrfs_wait_for_commit.btrfs_attach_transaction_barrier.btrfs_sync_fs 62.15 ± 57% -88.7% 7.03 ± 80% perf-sched.wait_time.max.ms.__cond_resched.process_one_work.worker_thread.kthread.ret_from_fork 22.66 ±112% -89.4% 2.41 ±131% perf-sched.wait_time.max.ms.btrfs_commit_transaction.iterate_supers.ksys_sync.__x64_sys_sync 624.35 ± 14% -30.4% 434.52 ± 10% perf-sched.wait_time.max.ms.io_schedule.folio_wait_bit_common.filemap_update_page.filemap_get_pages 1024 ± 18% -32.9% 687.99 ± 26% perf-sched.wait_time.max.ms.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.__btrfs_tree_read_lock 142.62 ± 54% -99.0% 1.46 ±171% perf-sched.wait_time.max.ms.wait_current_trans.start_transaction.btrfs_attach_transaction_barrier.btrfs_sync_fs 245.46 ± 10% -72.0% 68.68 ±103% perf-sched.wait_time.max.ms.wait_for_commit.btrfs_wait_for_commit.btrfs_attach_transaction_barrier.btrfs_sync_fs 38.11 ± 5% -9.6 28.47 ± 8% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.acpi_safe_halt.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter 35.07 ± 4% -7.6 27.50 ± 6% perf-profile.calltrace.cycles-pp.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify 36.16 ± 4% -7.6 28.61 ± 5% perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify 36.16 ± 4% -7.5 28.62 ± 5% perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64_no_verify 36.10 ± 4% -7.5 28.55 ± 5% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify 36.87 ± 4% -7.5 29.33 ± 6% perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify 33.44 ± 4% -7.3 26.15 ± 6% perf-profile.calltrace.cycles-pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary 33.76 ± 4% -7.3 26.51 ± 7% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry 32.17 ± 4% -7.0 25.14 ± 7% perf-profile.calltrace.cycles-pp.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle 17.07 ± 6% -4.4 12.70 ± 7% perf-profile.calltrace.cycles-pp.acpi_safe_halt.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call 12.51 ± 6% -3.3 9.23 ± 9% perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.acpi_safe_halt.acpi_idle_enter.cpuidle_enter_state 9.18 ± 4% -2.4 6.78 ± 9% perf-profile.calltrace.cycles-pp.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.acpi_safe_halt.acpi_idle_enter 8.91 ± 4% -2.4 6.55 ± 9% perf-profile.calltrace.cycles-pp.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.acpi_safe_halt 7.62 ± 4% -2.0 5.65 ± 8% perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt 6.44 ± 5% -1.6 4.79 ± 9% perf-profile.calltrace.cycles-pp.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt 5.98 ± 3% -1.6 4.37 ± 6% perf-profile.calltrace.cycles-pp.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt 5.93 ± 3% -1.6 4.32 ± 6% perf-profile.calltrace.cycles-pp.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt 5.26 ± 3% -1.5 3.78 ± 6% perf-profile.calltrace.cycles-pp.scheduler_tick.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues 3.91 ± 3% -1.1 2.76 ± 8% perf-profile.calltrace.cycles-pp.perf_event_task_tick.scheduler_tick.update_process_times.tick_sched_handle.tick_sched_timer 3.78 ± 3% -1.1 2.68 ± 8% perf-profile.calltrace.cycles-pp.perf_adjust_freq_unthr_context.perf_event_task_tick.scheduler_tick.update_process_times.tick_sched_handle 2.44 ± 5% -0.8 1.68 ± 13% perf-profile.calltrace.cycles-pp.__intel_pmu_enable_all.perf_adjust_freq_unthr_context.perf_event_task_tick.scheduler_tick.update_process_times 2.06 ± 28% -0.7 1.35 ± 8% perf-profile.calltrace.cycles-pp.stress_mwc8 2.12 ± 13% -0.5 1.61 ± 18% perf-profile.calltrace.cycles-pp.stress_rndbuf 0.78 ± 4% -0.5 0.27 ±100% perf-profile.calltrace.cycles-pp.iterate_supers.ksys_sync.__x64_sys_sync.do_syscall_64.entry_SYSCALL_64_after_hwframe 2.10 ± 7% -0.5 1.63 ± 8% perf-profile.calltrace.cycles-pp.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.acpi_safe_halt.acpi_idle_enter 0.81 ± 5% -0.4 0.36 ± 70% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.sync 0.81 ± 5% -0.4 0.36 ± 70% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.sync 0.81 ± 5% -0.4 0.36 ± 70% perf-profile.calltrace.cycles-pp.sync 0.80 ± 5% -0.4 0.36 ± 70% perf-profile.calltrace.cycles-pp.__x64_sys_sync.do_syscall_64.entry_SYSCALL_64_after_hwframe.sync 0.80 ± 5% -0.4 0.36 ± 70% perf-profile.calltrace.cycles-pp.ksys_sync.__x64_sys_sync.do_syscall_64.entry_SYSCALL_64_after_hwframe.sync 1.91 ± 8% -0.4 1.47 ± 8% perf-profile.calltrace.cycles-pp.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.acpi_safe_halt 0.70 ± 8% -0.4 0.28 ±100% perf-profile.calltrace.cycles-pp.perf_mux_hrtimer_handler.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt 1.89 ± 13% -0.4 1.48 ± 8% perf-profile.calltrace.cycles-pp.__mmap 1.86 ± 13% -0.4 1.46 ± 8% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__mmap 1.84 ± 13% -0.4 1.45 ± 8% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__mmap 0.65 ± 9% -0.4 0.26 ±100% perf-profile.calltrace.cycles-pp.rcu_core.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt 1.78 ± 14% -0.4 1.40 ± 9% perf-profile.calltrace.cycles-pp.vm_mmap_pgoff.do_syscall_64.entry_SYSCALL_64_after_hwframe.__mmap 1.50 ± 11% -0.3 1.18 ± 8% perf-profile.calltrace.cycles-pp.__munmap 1.49 ± 11% -0.3 1.17 ± 9% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__munmap 1.46 ± 12% -0.3 1.15 ± 9% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap 0.95 ± 11% -0.2 0.74 ± 9% perf-profile.calltrace.cycles-pp.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap 0.95 ± 12% -0.2 0.74 ± 9% perf-profile.calltrace.cycles-pp.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap 0.94 ± 11% -0.2 0.72 ± 8% perf-profile.calltrace.cycles-pp.do_vmi_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe 0.90 ± 12% -0.2 0.70 ± 8% perf-profile.calltrace.cycles-pp.do_vmi_align_munmap.do_vmi_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64 0.65 ± 12% +0.2 0.80 ± 8% perf-profile.calltrace.cycles-pp._raw_spin_lock.btrfs_block_rsv_release.btrfs_trans_release_metadata.__btrfs_end_transaction.btrfs_fileattr_set 0.72 ± 11% +0.2 0.92 ± 9% perf-profile.calltrace.cycles-pp.find_extent_buffer.read_block_for_search.btrfs_search_slot.btrfs_lookup_xattr.btrfs_setxattr 0.89 ± 10% +0.2 1.10 ± 9% perf-profile.calltrace.cycles-pp._raw_spin_lock.btrfs_update_root_times.btrfs_update_inode.btrfs_fileattr_set.vfs_fileattr_set 0.48 ± 45% +0.2 0.70 ± 7% perf-profile.calltrace.cycles-pp.wake_up_q.rwsem_wake.up_write.btrfs_release_path.btrfs_free_path 1.10 ± 11% +0.2 1.34 ± 7% perf-profile.calltrace.cycles-pp.join_transaction.start_transaction.btrfs_fileattr_set.vfs_fileattr_set.do_vfs_ioctl 1.01 ± 10% +0.2 1.24 ± 7% perf-profile.calltrace.cycles-pp.btrfs_block_rsv_release.btrfs_trans_release_metadata.__btrfs_end_transaction.btrfs_fileattr_set.vfs_fileattr_set 0.83 ± 14% +0.3 1.11 ± 8% perf-profile.calltrace.cycles-pp._raw_spin_lock.wait_current_trans.start_transaction.btrfs_fileattr_set.vfs_fileattr_set 0.39 ± 70% +0.3 0.67 ± 8% perf-profile.calltrace.cycles-pp.try_to_wake_up.wake_up_q.rwsem_wake.up_write.btrfs_release_path 1.54 ± 7% +0.3 1.83 ± 8% perf-profile.calltrace.cycles-pp.up_write.btrfs_release_path.btrfs_free_path.btrfs_setxattr.btrfs_set_prop 0.86 ± 11% +0.3 1.15 ± 7% perf-profile.calltrace.cycles-pp.__reserve_bytes.btrfs_reserve_metadata_bytes.btrfs_block_rsv_add.start_transaction.btrfs_fileattr_set 1.22 ± 8% +0.3 1.51 ± 8% perf-profile.calltrace.cycles-pp.btrfs_update_root_times.btrfs_update_inode.btrfs_fileattr_set.vfs_fileattr_set.do_vfs_ioctl 0.92 ± 11% +0.3 1.22 ± 4% perf-profile.calltrace.cycles-pp.btrfs_get_delayed_node.btrfs_get_or_create_delayed_node.btrfs_delayed_update_inode.btrfs_update_inode.btrfs_fileattr_set 0.96 ± 9% +0.3 1.27 ± 5% perf-profile.calltrace.cycles-pp.btrfs_get_or_create_delayed_node.btrfs_delayed_update_inode.btrfs_update_inode.btrfs_fileattr_set.vfs_fileattr_set 1.34 ± 11% +0.3 1.64 ± 8% perf-profile.calltrace.cycles-pp.rwsem_down_read_slowpath.down_read.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot 0.93 ± 13% +0.3 1.24 ± 8% perf-profile.calltrace.cycles-pp._raw_spin_lock.__btrfs_release_delayed_node.btrfs_delayed_update_inode.btrfs_update_inode.btrfs_fileattr_set 1.07 ± 13% +0.3 1.40 ± 7% perf-profile.calltrace.cycles-pp.wait_current_trans.start_transaction.btrfs_fileattr_set.vfs_fileattr_set.do_vfs_ioctl 1.18 ± 11% +0.3 1.52 ± 4% perf-profile.calltrace.cycles-pp.btrfs_reserve_metadata_bytes.btrfs_block_rsv_add.start_transaction.btrfs_fileattr_set.vfs_fileattr_set 1.65 ± 8% +0.3 2.00 ± 6% perf-profile.calltrace.cycles-pp.read_block_for_search.btrfs_search_slot.btrfs_lookup_xattr.btrfs_setxattr.btrfs_set_prop 1.66 ± 9% +0.4 2.04 ± 6% perf-profile.calltrace.cycles-pp.down_read.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_lookup_xattr 1.70 ± 8% +0.4 2.09 ± 6% perf-profile.calltrace.cycles-pp.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_lookup_xattr.btrfs_setxattr 0.18 ±142% +0.5 0.64 ± 12% perf-profile.calltrace.cycles-pp._raw_spin_lock.__reserve_bytes.btrfs_reserve_metadata_bytes.btrfs_block_rsv_add.start_transaction 1.57 ± 10% +0.5 2.02 ± 5% perf-profile.calltrace.cycles-pp.btrfs_block_rsv_add.start_transaction.btrfs_fileattr_set.vfs_fileattr_set.do_vfs_ioctl 2.45 ± 6% +0.5 2.91 ± 6% perf-profile.calltrace.cycles-pp.btrfs_free_path.btrfs_setxattr.btrfs_set_prop.btrfs_fileattr_set.vfs_fileattr_set 2.42 ± 6% +0.5 2.88 ± 5% perf-profile.calltrace.cycles-pp.btrfs_release_path.btrfs_free_path.btrfs_setxattr.btrfs_set_prop.btrfs_fileattr_set 2.28 ± 9% +0.5 2.81 ± 8% perf-profile.calltrace.cycles-pp.__btrfs_release_delayed_node.btrfs_delayed_update_inode.btrfs_update_inode.btrfs_fileattr_set.vfs_fileattr_set 2.82 ± 7% +0.6 3.44 ± 6% perf-profile.calltrace.cycles-pp.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_lookup_xattr.btrfs_setxattr.btrfs_set_prop 2.31 ± 7% +0.7 2.98 ± 7% perf-profile.calltrace.cycles-pp.__btrfs_end_transaction.btrfs_fileattr_set.vfs_fileattr_set.do_vfs_ioctl.__x64_sys_ioctl 4.00 ± 10% +1.0 5.04 ± 6% perf-profile.calltrace.cycles-pp.btrfs_delayed_update_inode.btrfs_update_inode.btrfs_fileattr_set.vfs_fileattr_set.do_vfs_ioctl 5.18 ± 10% +1.4 6.55 ± 4% perf-profile.calltrace.cycles-pp.start_transaction.btrfs_fileattr_set.vfs_fileattr_set.do_vfs_ioctl.__x64_sys_ioctl 5.67 ± 8% +1.4 7.07 ± 6% perf-profile.calltrace.cycles-pp.btrfs_update_inode.btrfs_fileattr_set.vfs_fileattr_set.do_vfs_ioctl.__x64_sys_ioctl 15.31 ± 7% +2.6 17.87 ± 6% perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_lookup_xattr.btrfs_setxattr.btrfs_set_prop.btrfs_fileattr_set 15.72 ± 6% +2.6 18.32 ± 6% perf-profile.calltrace.cycles-pp.btrfs_lookup_xattr.btrfs_setxattr.btrfs_set_prop.btrfs_fileattr_set.vfs_fileattr_set 24.78 ± 5% +4.4 29.22 ± 4% perf-profile.calltrace.cycles-pp.btrfs_setxattr.btrfs_set_prop.btrfs_fileattr_set.vfs_fileattr_set.do_vfs_ioctl 25.42 ± 5% +4.6 30.02 ± 4% perf-profile.calltrace.cycles-pp.btrfs_set_prop.btrfs_fileattr_set.vfs_fileattr_set.do_vfs_ioctl.__x64_sys_ioctl 39.35 ± 4% +8.3 47.63 ± 4% perf-profile.calltrace.cycles-pp.btrfs_fileattr_set.vfs_fileattr_set.do_vfs_ioctl.__x64_sys_ioctl.do_syscall_64 40.81 ± 4% +8.5 49.35 ± 4% perf-profile.calltrace.cycles-pp.vfs_fileattr_set.do_vfs_ioctl.__x64_sys_ioctl.do_syscall_64.entry_SYSCALL_64_after_hwframe 41.93 ± 4% +8.9 50.85 ± 4% perf-profile.calltrace.cycles-pp.do_vfs_ioctl.__x64_sys_ioctl.do_syscall_64.entry_SYSCALL_64_after_hwframe.ioctl 42.42 ± 4% +9.1 51.55 ± 4% perf-profile.calltrace.cycles-pp.__x64_sys_ioctl.do_syscall_64.entry_SYSCALL_64_after_hwframe.ioctl 43.04 ± 4% +9.3 52.32 ± 4% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.ioctl 43.27 ± 4% +9.3 52.62 ± 4% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.ioctl 44.39 ± 4% +9.6 54.00 ± 4% perf-profile.calltrace.cycles-pp.ioctl 35.78 ± 4% -7.6 28.18 ± 6% perf-profile.children.cycles-pp.cpuidle_idle_call 36.16 ± 4% -7.5 28.62 ± 5% perf-profile.children.cycles-pp.start_secondary 36.87 ± 4% -7.5 29.33 ± 6% perf-profile.children.cycles-pp.secondary_startup_64_no_verify 36.87 ± 4% -7.5 29.33 ± 6% perf-profile.children.cycles-pp.cpu_startup_entry 36.86 ± 4% -7.5 29.32 ± 6% perf-profile.children.cycles-pp.do_idle 34.09 ± 4% -7.3 26.77 ± 6% perf-profile.children.cycles-pp.cpuidle_enter 33.93 ± 4% -7.3 26.64 ± 6% perf-profile.children.cycles-pp.cpuidle_enter_state 32.32 ± 4% -7.0 25.28 ± 6% perf-profile.children.cycles-pp.acpi_idle_enter 32.26 ± 4% -7.0 25.24 ± 6% perf-profile.children.cycles-pp.acpi_safe_halt 26.04 ± 5% -6.5 19.51 ± 8% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt 12.94 ± 6% -3.3 9.60 ± 9% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt 9.50 ± 4% -2.5 7.05 ± 9% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt 9.23 ± 4% -2.4 6.82 ± 9% perf-profile.children.cycles-pp.hrtimer_interrupt 7.93 ± 4% -2.0 5.90 ± 8% perf-profile.children.cycles-pp.__hrtimer_run_queues 6.68 ± 5% -1.7 5.00 ± 8% perf-profile.children.cycles-pp.tick_sched_timer 6.20 ± 3% -1.6 4.56 ± 6% perf-profile.children.cycles-pp.tick_sched_handle 6.16 ± 3% -1.6 4.52 ± 5% perf-profile.children.cycles-pp.update_process_times 5.46 ± 3% -1.5 3.94 ± 6% perf-profile.children.cycles-pp.scheduler_tick 4.03 ± 3% -1.2 2.86 ± 7% perf-profile.children.cycles-pp.perf_event_task_tick 4.00 ± 3% -1.2 2.84 ± 8% perf-profile.children.cycles-pp.perf_adjust_freq_unthr_context 2.87 ± 4% -0.9 2.00 ± 12% perf-profile.children.cycles-pp.__intel_pmu_enable_all 2.44 ± 15% -0.5 1.91 ± 8% perf-profile.children.cycles-pp.stress_mwc8 2.40 ± 7% -0.5 1.87 ± 8% perf-profile.children.cycles-pp.__irq_exit_rcu 2.18 ± 8% -0.5 1.69 ± 7% perf-profile.children.cycles-pp.__do_softirq 1.96 ± 13% -0.4 1.53 ± 8% perf-profile.children.cycles-pp.stress_rndbuf 1.90 ± 13% -0.4 1.49 ± 8% perf-profile.children.cycles-pp.__mmap 1.07 ± 34% -0.4 0.66 ± 30% perf-profile.children.cycles-pp.ktime_get 1.88 ± 13% -0.4 1.49 ± 8% perf-profile.children.cycles-pp.vm_mmap_pgoff 1.52 ± 12% -0.3 1.19 ± 9% perf-profile.children.cycles-pp.__munmap 0.80 ± 5% -0.3 0.52 ± 7% perf-profile.children.cycles-pp.__x64_sys_sync 0.80 ± 5% -0.3 0.52 ± 7% perf-profile.children.cycles-pp.ksys_sync 0.81 ± 5% -0.3 0.52 ± 6% perf-profile.children.cycles-pp.sync 0.96 ± 11% -0.2 0.74 ± 9% perf-profile.children.cycles-pp.__x64_sys_munmap 0.75 ± 7% -0.2 0.53 ± 12% perf-profile.children.cycles-pp.perf_mux_hrtimer_handler 0.68 ± 4% -0.2 0.46 ± 9% perf-profile.children.cycles-pp.btrfs_commit_transaction 0.96 ± 11% -0.2 0.75 ± 9% perf-profile.children.cycles-pp.__vm_munmap 0.99 ± 11% -0.2 0.78 ± 9% perf-profile.children.cycles-pp.do_vmi_munmap 1.00 ± 7% -0.2 0.80 ± 8% perf-profile.children.cycles-pp.do_writepages 0.94 ± 11% -0.2 0.74 ± 9% perf-profile.children.cycles-pp.do_vmi_align_munmap 0.70 ± 11% -0.2 0.51 ± 7% perf-profile.children.cycles-pp.rcu_core 0.63 ± 11% -0.2 0.48 ± 5% perf-profile.children.cycles-pp.native_irq_return_iret 0.68 ± 8% -0.2 0.52 ± 8% perf-profile.children.cycles-pp.btrfs_submit_bio 0.67 ± 8% -0.2 0.52 ± 8% perf-profile.children.cycles-pp.btrfs_submit_chunk 0.66 ± 7% -0.2 0.51 ± 9% perf-profile.children.cycles-pp.btree_write_cache_pages 0.64 ± 7% -0.1 0.50 ± 10% perf-profile.children.cycles-pp.submit_eb_page 0.50 ± 9% -0.1 0.35 ± 7% perf-profile.children.cycles-pp.handle_mm_fault 0.53 ± 5% -0.1 0.40 ± 10% perf-profile.children.cycles-pp.btree_csum_one_bio 0.59 ± 9% -0.1 0.46 ± 8% perf-profile.children.cycles-pp.wb_workfn 0.58 ± 10% -0.1 0.45 ± 8% perf-profile.children.cycles-pp.wb_do_writeback 0.47 ± 10% -0.1 0.34 ± 9% perf-profile.children.cycles-pp.__handle_mm_fault 0.48 ± 5% -0.1 0.36 ± 11% perf-profile.children.cycles-pp.btrfs_check_leaf 0.48 ± 5% -0.1 0.36 ± 11% perf-profile.children.cycles-pp.__btrfs_check_leaf 0.51 ± 11% -0.1 0.38 ± 10% perf-profile.children.cycles-pp.__mm_populate 0.54 ± 8% -0.1 0.41 ± 7% perf-profile.children.cycles-pp.__writeback_single_inode 0.62 ± 14% -0.1 0.50 ± 5% perf-profile.children.cycles-pp.load_balance 0.48 ± 11% -0.1 0.36 ± 11% perf-profile.children.cycles-pp.populate_vma_page_range 0.54 ± 9% -0.1 0.42 ± 8% perf-profile.children.cycles-pp.wb_writeback 0.50 ± 13% -0.1 0.38 ± 15% perf-profile.children.cycles-pp.clockevents_program_event 0.54 ± 8% -0.1 0.41 ± 7% perf-profile.children.cycles-pp.writeback_sb_inodes 0.48 ± 7% -0.1 0.36 ± 16% perf-profile.children.cycles-pp.perf_rotate_context 0.39 ± 11% -0.1 0.28 ± 10% perf-profile.children.cycles-pp.do_fault 0.36 ± 16% -0.1 0.26 ± 14% perf-profile.children.cycles-pp.unmap_vmas 0.48 ± 10% -0.1 0.37 ± 11% perf-profile.children.cycles-pp.sched_clock_cpu 0.43 ± 10% -0.1 0.32 ± 9% perf-profile.children.cycles-pp.__get_user_pages 0.38 ± 12% -0.1 0.28 ± 10% perf-profile.children.cycles-pp.do_read_fault 0.35 ± 18% -0.1 0.25 ± 14% perf-profile.children.cycles-pp.unmap_page_range 0.49 ± 16% -0.1 0.39 ± 7% perf-profile.children.cycles-pp.update_sd_lb_stats 0.50 ± 15% -0.1 0.40 ± 6% perf-profile.children.cycles-pp.find_busiest_group 0.54 ± 13% -0.1 0.44 ± 9% perf-profile.children.cycles-pp.exit_to_user_mode_loop 0.34 ± 17% -0.1 0.24 ± 14% perf-profile.children.cycles-pp.zap_pmd_range 0.34 ± 16% -0.1 0.24 ± 15% perf-profile.children.cycles-pp.zap_pte_range 0.25 ± 13% -0.1 0.16 ± 16% perf-profile.children.cycles-pp.btrfs_run_delayed_refs 0.25 ± 12% -0.1 0.15 ± 16% perf-profile.children.cycles-pp.__btrfs_run_delayed_refs 0.42 ± 13% -0.1 0.32 ± 12% perf-profile.children.cycles-pp.unmap_region 0.54 ± 9% -0.1 0.45 ± 10% perf-profile.children.cycles-pp.native_sched_clock 0.34 ± 12% -0.1 0.25 ± 14% perf-profile.children.cycles-pp.rcu_do_batch 0.39 ± 12% -0.1 0.31 ± 6% perf-profile.children.cycles-pp.update_sg_lb_stats 0.35 ± 12% -0.1 0.27 ± 14% perf-profile.children.cycles-pp.run_rebalance_domains 0.36 ± 11% -0.1 0.28 ± 11% perf-profile.children.cycles-pp.irqtime_account_irq 0.34 ± 13% -0.1 0.27 ± 12% perf-profile.children.cycles-pp.update_blocked_averages 0.20 ± 11% -0.1 0.13 ± 18% perf-profile.children.cycles-pp.btrfs_run_delayed_refs_for_head 0.47 ± 9% -0.1 0.40 ± 9% perf-profile.children.cycles-pp.sched_clock 0.17 ± 19% -0.1 0.11 ± 11% perf-profile.children.cycles-pp.exc_page_fault 0.17 ± 19% -0.1 0.11 ± 11% perf-profile.children.cycles-pp.do_user_addr_fault 0.20 ± 15% -0.1 0.14 ± 9% perf-profile.children.cycles-pp.asm_exc_page_fault 0.11 ± 33% -0.1 0.05 ± 49% perf-profile.children.cycles-pp.__mod_lruvec_page_state 0.17 ± 14% -0.1 0.11 ± 8% perf-profile.children.cycles-pp.__btrfs_write_out_cache 0.17 ± 14% -0.1 0.11 ± 8% perf-profile.children.cycles-pp.btrfs_write_out_cache 0.10 ± 5% -0.1 0.05 ± 73% perf-profile.children.cycles-pp.timerqueue_del 0.09 ± 30% -0.1 0.04 ± 73% perf-profile.children.cycles-pp.crc_pcl 0.11 ± 12% -0.1 0.06 ± 9% perf-profile.children.cycles-pp.commit_cowonly_roots 0.10 ± 15% -0.0 0.05 ± 45% perf-profile.children.cycles-pp.btrfs_write_dirty_block_groups 0.12 ± 22% -0.0 0.08 ± 27% perf-profile.children.cycles-pp.pagecache_get_page 0.07 ± 7% -0.0 0.03 ±100% perf-profile.children.cycles-pp.get_page_from_freelist 0.14 ± 20% -0.0 0.10 ± 7% perf-profile.children.cycles-pp.perf_pmu_nop_void 0.11 ± 14% -0.0 0.07 ± 17% perf-profile.children.cycles-pp.__btrfs_free_extent 0.08 ± 14% -0.0 0.04 ± 71% perf-profile.children.cycles-pp.__x64_sys_exit_group 0.08 ± 14% -0.0 0.04 ± 71% perf-profile.children.cycles-pp.do_group_exit 0.08 ± 14% -0.0 0.04 ± 71% perf-profile.children.cycles-pp.do_exit 0.08 ± 16% -0.0 0.04 ± 45% perf-profile.children.cycles-pp.exit_mmap 0.08 ± 17% -0.0 0.04 ± 45% perf-profile.children.cycles-pp.__mmput 0.13 ± 10% -0.0 0.10 ± 5% perf-profile.children.cycles-pp.x86_pmu_disable 0.08 ± 16% -0.0 0.05 ± 46% perf-profile.children.cycles-pp.filemap_map_pages 0.24 ± 7% +0.0 0.28 ± 10% perf-profile.children.cycles-pp.btrfs_inode_flags_to_fsflags 0.22 ± 6% +0.1 0.27 ± 9% perf-profile.children.cycles-pp.unlock_up 0.14 ± 13% +0.1 0.19 ± 12% perf-profile.children.cycles-pp.inode_get_bytes 0.13 ± 20% +0.1 0.19 ± 10% perf-profile.children.cycles-pp.strcmp 0.22 ± 9% +0.1 0.29 ± 11% perf-profile.children.cycles-pp.__smp_call_single_queue 0.16 ± 21% +0.1 0.22 ± 16% perf-profile.children.cycles-pp.inode_maybe_inc_iversion 0.34 ± 16% +0.1 0.43 ± 10% perf-profile.children.cycles-pp.fill_stack_inode_item 0.39 ± 9% +0.1 0.49 ± 9% perf-profile.children.cycles-pp.ttwu_queue_wakelist 0.30 ± 13% +0.1 0.40 ± 12% perf-profile.children.cycles-pp.__fget_light 0.35 ± 9% +0.1 0.46 ± 12% perf-profile.children.cycles-pp.btrfs_put_transaction 0.32 ± 12% +0.1 0.43 ± 9% perf-profile.children.cycles-pp.__radix_tree_lookup 0.43 ± 13% +0.1 0.55 ± 10% perf-profile.children.cycles-pp.fileattr_set_prepare 0.26 ± 9% +0.1 0.39 ± 7% perf-profile.children.cycles-pp.__get_user_4 0.54 ± 7% +0.1 0.69 ± 14% perf-profile.children.cycles-pp.find_prop_handler 0.47 ± 11% +0.1 0.61 ± 6% perf-profile.children.cycles-pp.find_extent_buffer_nolock 0.70 ± 11% +0.2 0.86 ± 9% perf-profile.children.cycles-pp.wake_up_q 0.88 ± 7% +0.2 1.08 ± 6% perf-profile.children.cycles-pp.kmem_cache_alloc 0.86 ± 10% +0.2 1.06 ± 7% perf-profile.children.cycles-pp.find_extent_buffer 1.12 ± 11% +0.2 1.36 ± 7% perf-profile.children.cycles-pp.join_transaction 1.05 ± 10% +0.3 1.30 ± 6% perf-profile.children.cycles-pp.btrfs_block_rsv_release 1.24 ± 8% +0.3 1.53 ± 8% perf-profile.children.cycles-pp.btrfs_update_root_times 0.93 ± 11% +0.3 1.23 ± 4% perf-profile.children.cycles-pp.btrfs_get_delayed_node 1.96 ± 6% +0.3 2.27 ± 8% perf-profile.children.cycles-pp.up_write 0.98 ± 9% +0.3 1.28 ± 5% perf-profile.children.cycles-pp.btrfs_get_or_create_delayed_node 0.90 ± 12% +0.3 1.21 ± 7% perf-profile.children.cycles-pp.__reserve_bytes 1.46 ± 11% +0.3 1.79 ± 3% perf-profile.children.cycles-pp.btrfs_root_node 1.11 ± 13% +0.3 1.44 ± 7% perf-profile.children.cycles-pp.wait_current_trans 1.44 ± 12% +0.4 1.79 ± 8% perf-profile.children.cycles-pp.rwsem_down_read_slowpath 1.87 ± 8% +0.4 2.22 ± 5% perf-profile.children.cycles-pp.read_block_for_search 1.19 ± 11% +0.4 1.54 ± 4% perf-profile.children.cycles-pp.btrfs_reserve_metadata_bytes 1.82 ± 9% +0.4 2.26 ± 6% perf-profile.children.cycles-pp.down_read 1.83 ± 9% +0.5 2.28 ± 6% perf-profile.children.cycles-pp.__btrfs_tree_read_lock 2.46 ± 6% +0.5 2.92 ± 5% perf-profile.children.cycles-pp.btrfs_free_path 1.58 ± 11% +0.5 2.04 ± 5% perf-profile.children.cycles-pp.btrfs_block_rsv_add 2.46 ± 6% +0.5 2.93 ± 5% perf-profile.children.cycles-pp.btrfs_release_path 2.33 ± 10% +0.5 2.87 ± 8% perf-profile.children.cycles-pp.__btrfs_release_delayed_node 2.35 ± 7% +0.7 3.02 ± 7% perf-profile.children.cycles-pp.__btrfs_end_transaction 3.08 ± 8% +0.7 3.76 ± 5% perf-profile.children.cycles-pp.btrfs_read_lock_root_node 4.06 ± 10% +1.1 5.12 ± 6% perf-profile.children.cycles-pp.btrfs_delayed_update_inode 5.27 ± 10% +1.4 6.64 ± 4% perf-profile.children.cycles-pp.start_transaction 5.72 ± 8% +1.4 7.11 ± 6% perf-profile.children.cycles-pp.btrfs_update_inode 15.73 ± 6% +2.6 18.33 ± 6% perf-profile.children.cycles-pp.btrfs_lookup_xattr 17.09 ± 6% +2.8 19.89 ± 6% perf-profile.children.cycles-pp.btrfs_search_slot 24.80 ± 5% +4.4 29.24 ± 4% perf-profile.children.cycles-pp.btrfs_setxattr 25.44 ± 5% +4.6 30.03 ± 4% perf-profile.children.cycles-pp.btrfs_set_prop 39.40 ± 4% +8.3 47.68 ± 4% perf-profile.children.cycles-pp.btrfs_fileattr_set 54.40 ± 3% +8.4 62.75 ± 3% perf-profile.children.cycles-pp.do_syscall_64 54.62 ± 3% +8.4 63.01 ± 3% perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe 40.88 ± 4% +8.6 49.44 ± 4% perf-profile.children.cycles-pp.vfs_fileattr_set 41.99 ± 4% +9.0 50.94 ± 4% perf-profile.children.cycles-pp.do_vfs_ioctl 42.48 ± 4% +9.2 51.65 ± 4% perf-profile.children.cycles-pp.__x64_sys_ioctl 44.82 ± 4% +9.6 54.45 ± 4% perf-profile.children.cycles-pp.ioctl 16.97 ± 5% -3.4 13.59 ± 6% perf-profile.self.cycles-pp.acpi_safe_halt 2.87 ± 4% -0.9 2.00 ± 12% perf-profile.self.cycles-pp.__intel_pmu_enable_all 1.91 ± 16% -0.4 1.50 ± 8% perf-profile.self.cycles-pp.stress_mwc8 1.29 ± 13% -0.3 0.97 ± 7% perf-profile.self.cycles-pp.stress_rndbuf 1.23 ± 6% -0.3 0.92 ± 4% perf-profile.self.cycles-pp.perf_adjust_freq_unthr_context 0.63 ± 12% -0.2 0.48 ± 5% perf-profile.self.cycles-pp.native_irq_return_iret 0.26 ± 9% -0.1 0.17 ± 11% perf-profile.self.cycles-pp.cpuidle_idle_call 0.22 ± 8% -0.1 0.17 ± 12% perf-profile.self.cycles-pp.asm_sysvec_apic_timer_interrupt 0.13 ± 12% -0.1 0.08 ± 23% perf-profile.self.cycles-pp.__hrtimer_run_queues 0.09 ± 30% -0.1 0.04 ± 73% perf-profile.self.cycles-pp.crc_pcl 0.12 ± 23% -0.0 0.08 ± 10% perf-profile.self.cycles-pp.scheduler_tick 0.16 ± 13% -0.0 0.12 ± 12% perf-profile.self.cycles-pp.cpuidle_enter 0.11 ± 16% -0.0 0.08 ± 4% perf-profile.self.cycles-pp.x86_pmu_disable 0.12 ± 11% -0.0 0.10 ± 16% perf-profile.self.cycles-pp.note_gp_changes 0.08 ± 17% +0.0 0.12 ± 8% perf-profile.self.cycles-pp.btrfs_delayed_update_inode 0.07 ± 49% +0.0 0.11 ± 15% perf-profile.self.cycles-pp.fill_stack_inode_item 0.07 ± 18% +0.0 0.11 ± 9% perf-profile.self.cycles-pp.crc32c_pcl_intel_update 0.05 ± 49% +0.0 0.09 ± 14% perf-profile.self.cycles-pp.current_time 0.10 ± 17% +0.1 0.16 ± 15% perf-profile.self.cycles-pp.fileattr_set_prepare 0.13 ± 22% +0.1 0.19 ± 10% perf-profile.self.cycles-pp.strcmp 0.19 ± 9% +0.1 0.26 ± 9% perf-profile.self.cycles-pp.unlock_up 0.23 ± 14% +0.1 0.30 ± 6% perf-profile.self.cycles-pp.btrfs_fileattr_set 0.23 ± 15% +0.1 0.30 ± 8% perf-profile.self.cycles-pp.vfs_fileattr_set 0.31 ± 16% +0.1 0.38 ± 13% perf-profile.self.cycles-pp.rwsem_mark_wake 0.15 ± 22% +0.1 0.22 ± 17% perf-profile.self.cycles-pp.inode_maybe_inc_iversion 0.16 ± 11% +0.1 0.23 ± 10% perf-profile.self.cycles-pp.__schedule 0.24 ± 18% +0.1 0.31 ± 11% perf-profile.self.cycles-pp.wait_current_trans 0.48 ± 8% +0.1 0.56 ± 8% perf-profile.self.cycles-pp.kmem_cache_alloc 0.14 ± 14% +0.1 0.23 ± 11% perf-profile.self.cycles-pp.__x64_sys_ioctl 0.29 ± 11% +0.1 0.39 ± 12% perf-profile.self.cycles-pp.__fget_light 0.71 ± 6% +0.1 0.81 ± 10% perf-profile.self.cycles-pp.down_write 0.26 ± 15% +0.1 0.37 ± 11% perf-profile.self.cycles-pp.btrfs_setxattr 0.34 ± 8% +0.1 0.45 ± 13% perf-profile.self.cycles-pp.btrfs_put_transaction 0.31 ± 11% +0.1 0.42 ± 9% perf-profile.self.cycles-pp.__radix_tree_lookup 0.21 ± 16% +0.1 0.32 ± 15% perf-profile.self.cycles-pp.do_vfs_ioctl 0.25 ± 11% +0.1 0.38 ± 7% perf-profile.self.cycles-pp.__get_user_4 0.42 ± 15% +0.2 0.58 ± 11% perf-profile.self.cycles-pp.rwsem_down_read_slowpath 0.89 ± 11% +0.2 1.11 ± 10% perf-profile.self.cycles-pp.start_transaction 0.81 ± 12% +0.2 1.04 ± 9% perf-profile.self.cycles-pp.__btrfs_end_transaction 1.28 ± 4% +0.3 1.56 ± 7% perf-profile.self.cycles-pp.btrfs_search_slot 0.93 ± 11% +0.3 1.22 ± 4% perf-profile.self.cycles-pp.btrfs_get_delayed_node 1.45 ± 11% +0.3 1.77 ± 3% perf-profile.self.cycles-pp.btrfs_root_node 1.80 ± 3% +0.3 2.12 ± 4% perf-profile.self.cycles-pp.rwsem_optimistic_spin 5.38 ± 7% +1.2 6.58 ± 3% perf-profile.self.cycles-pp._raw_spin_lock Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki