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Date: Fri, 14 Apr 2023 10:01:51 +0800
From: kernel test robot <yujie.liu@...el.com>
To: Christoph Hellwig <hch@....de>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
<linux-kernel@...r.kernel.org>, David Sterba <dsterba@...e.com>,
Johannes Thumshirn <johannes.thumshirn@....com>,
Anand Jain <anand.jain@...cle.com>,
<linux-btrfs@...r.kernel.org>, <ying.huang@...el.com>,
<feng.tang@...el.com>, <fengwei.yin@...el.com>
Subject: [linus:master] [btrfs] 4ae2edf12d: fio.write_iops -11.9% regression
Hello,
kernel test robot noticed a -11.9% regression of fio.write_iops on:
commit: 4ae2edf12d49fdbaea2dfda0bb2ec06501bd3493 ("btrfs: simplify parameters of btrfs_lookup_bio_sums")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
testcase: fio-basic
test machine: 96 threads 2 sockets (Ice Lake) with 256G memory
parameters:
runtime: 300s
disk: 1HDD
fs: btrfs
nr_task: 100%
test_size: 128G
rw: write
bs: 4k
ioengine: io_uring
direct: direct
cpufreq_governor: performance
test-description: Fio is a tool that will spawn a number of threads or processes doing a particular type of I/O action as specified by the user.
test-url: https://github.com/axboe/fio
If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <yujie.liu@...el.com>
| Link: https://lore.kernel.org/oe-lkp/202304140917.9e9f5c1-yujie.liu@intel.com
Details are as below:
=========================================================================================
bs/compiler/cpufreq_governor/direct/disk/fs/ioengine/kconfig/nr_task/rootfs/runtime/rw/tbox_group/test_size/testcase:
4k/gcc-11/performance/direct/1HDD/btrfs/io_uring/x86_64-rhel-8.3/100%/debian-11.1-x86_64-20220510.cgz/300s/write/lkp-icl-2sp1/128G/fio-basic
commit:
5fa356531e ("btrfs: remove the direct I/O read checksum lookup optimization")
4ae2edf12d ("btrfs: simplify parameters of btrfs_lookup_bio_sums")
5fa356531e33e7c7 4ae2edf12d49fdbaea2dfda0bb2
---------------- ---------------------------
%stddev %change %stddev
\ | \
1.99 ± 2% +0.1 2.09 fio.latency_1000ms%
0.85 ± 4% -0.3 0.56 ± 13% fio.latency_100ms%
3.65 +0.4 4.02 ± 2% fio.latency_2000ms%
68.99 -16.8 52.15 fio.latency_250ms%
19.81 ± 2% +15.7 35.54 ± 2% fio.latency_500ms%
3.23 ± 2% +0.5 3.70 ± 2% fio.latency_750ms%
1.44 +0.5 1.91 fio.latency_>=2000ms%
22375141 -11.8% 19728171 fio.time.file_system_outputs
745392 ± 3% -10.5% 667220 fio.time.voluntary_context_switches
2796892 -11.8% 2466021 fio.workload
36.37 -11.9% 32.05 fio.write_bw_MBps
5.187e+08 +14.0% 5.914e+08 fio.write_clat_90%_us
1.012e+09 +13.3% 1.147e+09 fio.write_clat_95%_us
2.298e+09 +12.4% 2.584e+09 fio.write_clat_99%_us
3.259e+08 +13.4% 3.697e+08 fio.write_clat_mean_us
4.139e+08 +12.8% 4.669e+08 fio.write_clat_stddev
9311 -11.9% 8204 fio.write_iops
3522924 +13.1% 3983287 fio.write_slat_mean_us
75849924 +12.7% 85515624 fio.write_slat_stddev
31697 ± 2% -13.0% 27571 ± 3% meminfo.Active
23825 ± 3% -16.6% 19877 ± 4% meminfo.Active(file)
61.50 ± 4% -35.0% 40.00 ± 3% turbostat.CoreTmp
61.50 ± 4% -33.1% 41.12 ± 2% turbostat.PkgTmp
37215 -11.9% 32794 vmstat.io.bo
27622 ± 5% -13.6% 23864 ± 7% vmstat.system.cs
22698 ± 13% -25.3% 16954 ± 12% numa-meminfo.node0.Active
20334 ± 14% -27.0% 14846 ± 14% numa-meminfo.node0.Active(file)
307020 ± 8% -13.9% 264475 ± 5% numa-meminfo.node0.SUnreclaim
5083 ± 14% -27.0% 3712 ± 14% numa-vmstat.node0.nr_active_file
76759 ± 8% -13.8% 66128 ± 5% numa-vmstat.node0.nr_slab_unreclaimable
5083 ± 14% -27.0% 3712 ± 14% numa-vmstat.node0.nr_zone_active_file
27796 ± 5% -13.6% 24004 ± 7% perf-stat.i.context-switches
182627 ± 3% +9.1% 199237 ± 2% perf-stat.overall.path-length
27704 ± 5% -13.6% 23924 ± 7% perf-stat.ps.context-switches
5953 ± 3% -16.6% 4967 ± 4% proc-vmstat.nr_active_file
23114 -10.3% 20736 ± 3% proc-vmstat.nr_dirtied
8817 -1.2% 8709 proc-vmstat.nr_shmem
113287 -5.0% 107581 proc-vmstat.nr_slab_unreclaimable
5953 ± 3% -16.6% 4967 ± 4% proc-vmstat.nr_zone_active_file
915807 -1.7% 899903 proc-vmstat.numa_hit
828456 -1.9% 812632 proc-vmstat.numa_local
45186 -10.8% 40306 ± 3% proc-vmstat.pgactivate
11313643 -11.9% 9971313 proc-vmstat.pgpgout
17.75 ± 11% -3.1 14.64 ± 23% perf-profile.calltrace.cycles-pp.ret_from_fork
17.75 ± 11% -3.1 14.64 ± 23% perf-profile.calltrace.cycles-pp.kthread.ret_from_fork
17.55 ± 11% -3.1 14.45 ± 23% perf-profile.calltrace.cycles-pp.worker_thread.kthread.ret_from_fork
17.16 ± 11% -3.0 14.16 ± 23% perf-profile.calltrace.cycles-pp.process_one_work.worker_thread.kthread.ret_from_fork
16.21 ± 12% -2.9 13.30 ± 25% perf-profile.calltrace.cycles-pp.btrfs_work_helper.process_one_work.worker_thread.kthread.ret_from_fork
16.19 ± 12% -2.9 13.28 ± 25% perf-profile.calltrace.cycles-pp.btrfs_finish_ordered_io.btrfs_work_helper.process_one_work.worker_thread.kthread
10.25 ± 12% -2.3 7.98 ± 25% perf-profile.calltrace.cycles-pp.btrfs_mark_extent_written.btrfs_finish_ordered_io.btrfs_work_helper.process_one_work.worker_thread
8.24 ± 13% -1.9 6.35 ± 26% perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_mark_extent_written.btrfs_finish_ordered_io.btrfs_work_helper.process_one_work
6.47 ± 15% -1.6 4.91 ± 28% perf-profile.calltrace.cycles-pp.btrfs_lock_root_node.btrfs_search_slot.btrfs_mark_extent_written.btrfs_finish_ordered_io.btrfs_work_helper
6.45 ± 15% -1.6 4.90 ± 28% perf-profile.calltrace.cycles-pp.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot.btrfs_mark_extent_written.btrfs_finish_ordered_io
6.35 ± 15% -1.5 4.82 ± 28% perf-profile.calltrace.cycles-pp.rwsem_optimistic_spin.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot
6.41 ± 15% -1.5 4.88 ± 28% perf-profile.calltrace.cycles-pp.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot.btrfs_mark_extent_written
4.50 ± 14% -1.1 3.38 ± 29% perf-profile.calltrace.cycles-pp.osq_lock.rwsem_optimistic_spin.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_lock_root_node
3.55 ± 53% -0.7 2.86 ± 19% perf-profile.calltrace.cycles-pp.poll_idle.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
4.78 ± 18% -0.6 4.16 ± 17% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.fio_ioring_commit
4.90 ± 18% -0.6 4.29 ± 17% perf-profile.calltrace.cycles-pp.fio_ioring_commit
4.82 ± 18% -0.6 4.21 ± 17% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.fio_ioring_commit
4.70 ± 18% -0.6 4.10 ± 17% perf-profile.calltrace.cycles-pp.__do_sys_io_uring_enter.do_syscall_64.entry_SYSCALL_64_after_hwframe.fio_ioring_commit
4.63 ± 18% -0.6 4.04 ± 17% perf-profile.calltrace.cycles-pp.io_submit_sqes.__do_sys_io_uring_enter.do_syscall_64.entry_SYSCALL_64_after_hwframe.fio_ioring_commit
4.52 ± 19% -0.6 3.97 ± 17% perf-profile.calltrace.cycles-pp.io_write.io_issue_sqe.io_submit_sqes.__do_sys_io_uring_enter.do_syscall_64
4.55 ± 19% -0.6 4.00 ± 17% perf-profile.calltrace.cycles-pp.io_issue_sqe.io_submit_sqes.__do_sys_io_uring_enter.do_syscall_64.entry_SYSCALL_64_after_hwframe
4.37 ± 18% -0.5 3.82 ± 18% perf-profile.calltrace.cycles-pp.__iomap_dio_rw.btrfs_dio_write.btrfs_direct_write.btrfs_do_write_iter.io_write
4.38 ± 18% -0.5 3.83 ± 18% perf-profile.calltrace.cycles-pp.btrfs_dio_write.btrfs_direct_write.btrfs_do_write_iter.io_write.io_issue_sqe
4.45 ± 18% -0.5 3.92 ± 17% perf-profile.calltrace.cycles-pp.btrfs_do_write_iter.io_write.io_issue_sqe.io_submit_sqes.__do_sys_io_uring_enter
4.43 ± 18% -0.5 3.89 ± 17% perf-profile.calltrace.cycles-pp.btrfs_direct_write.btrfs_do_write_iter.io_write.io_issue_sqe.io_submit_sqes
4.12 ± 19% -0.4 3.70 ± 31% perf-profile.calltrace.cycles-pp.btrfs_csum_file_blocks.btrfs_finish_ordered_io.btrfs_work_helper.process_one_work.worker_thread
0.92 ± 36% -0.4 0.51 ± 95% perf-profile.calltrace.cycles-pp.rwsem_spin_on_owner.rwsem_optimistic_spin.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_search_slot
0.74 ± 14% -0.4 0.33 ±101% perf-profile.calltrace.cycles-pp.setup_items_for_insert.btrfs_duplicate_item.btrfs_mark_extent_written.btrfs_finish_ordered_io.btrfs_work_helper
0.67 ± 16% -0.3 0.32 ±101% perf-profile.calltrace.cycles-pp.__irq_exit_rcu.common_interrupt.asm_common_interrupt.cpuidle_enter_state.cpuidle_enter
0.67 ± 16% -0.3 0.32 ±101% perf-profile.calltrace.cycles-pp.__do_softirq.__irq_exit_rcu.common_interrupt.asm_common_interrupt.cpuidle_enter_state
3.02 ± 19% -0.3 2.67 ± 19% perf-profile.calltrace.cycles-pp.iomap_iter.__iomap_dio_rw.btrfs_dio_write.btrfs_direct_write.btrfs_do_write_iter
0.66 ± 16% -0.3 0.32 ±101% perf-profile.calltrace.cycles-pp.blk_complete_reqs.__do_softirq.__irq_exit_rcu.common_interrupt.asm_common_interrupt
0.66 ± 17% -0.3 0.32 ±101% perf-profile.calltrace.cycles-pp.scsi_io_completion.blk_complete_reqs.__do_softirq.__irq_exit_rcu.common_interrupt
0.66 ± 17% -0.3 0.32 ±101% perf-profile.calltrace.cycles-pp.scsi_end_request.scsi_io_completion.blk_complete_reqs.__do_softirq.__irq_exit_rcu
1.46 ± 20% -0.3 1.12 ± 28% perf-profile.calltrace.cycles-pp.rwsem_spin_on_owner.rwsem_optimistic_spin.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_lock_root_node
2.98 ± 19% -0.3 2.65 ± 19% perf-profile.calltrace.cycles-pp.btrfs_dio_iomap_begin.iomap_iter.__iomap_dio_rw.btrfs_dio_write.btrfs_direct_write
0.75 ± 15% -0.3 0.44 ± 78% perf-profile.calltrace.cycles-pp.asm_common_interrupt.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
0.75 ± 15% -0.3 0.44 ± 78% perf-profile.calltrace.cycles-pp.common_interrupt.asm_common_interrupt.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call
0.74 ± 13% -0.3 0.43 ± 80% perf-profile.calltrace.cycles-pp.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_search_slot.btrfs_mark_extent_written.btrfs_finish_ordered_io
0.74 ± 13% -0.3 0.43 ± 80% perf-profile.calltrace.cycles-pp.rwsem_optimistic_spin.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_search_slot.btrfs_mark_extent_written
2.06 ± 20% -0.3 1.78 ± 36% perf-profile.calltrace.cycles-pp.btrfs_lookup_csum.btrfs_csum_file_blocks.btrfs_finish_ordered_io.btrfs_work_helper.process_one_work
0.78 ± 14% -0.3 0.50 ± 64% perf-profile.calltrace.cycles-pp.btrfs_duplicate_item.btrfs_mark_extent_written.btrfs_finish_ordered_io.btrfs_work_helper.process_one_work
2.02 ± 20% -0.3 1.74 ± 36% perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_lookup_csum.btrfs_csum_file_blocks.btrfs_finish_ordered_io.btrfs_work_helper
2.62 ± 20% -0.3 2.35 ± 19% perf-profile.calltrace.cycles-pp.btrfs_get_blocks_direct_write.btrfs_dio_iomap_begin.iomap_iter.__iomap_dio_rw.btrfs_dio_write
0.76 ± 14% -0.3 0.51 ± 62% perf-profile.calltrace.cycles-pp.__btrfs_tree_lock.btrfs_search_slot.btrfs_mark_extent_written.btrfs_finish_ordered_io.btrfs_work_helper
1.23 ± 27% -0.2 0.98 ± 61% perf-profile.calltrace.cycles-pp.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_search_slot.btrfs_lookup_csum.btrfs_csum_file_blocks
1.21 ± 26% -0.2 0.97 ± 61% perf-profile.calltrace.cycles-pp.rwsem_optimistic_spin.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_search_slot.btrfs_lookup_csum
0.54 ± 48% -0.2 0.30 ±101% perf-profile.calltrace.cycles-pp.blk_update_request.scsi_end_request.scsi_io_completion.blk_complete_reqs.__do_softirq
0.60 ± 56% -0.2 0.36 ± 78% perf-profile.calltrace.cycles-pp.csum_exist_in_range.can_nocow_file_extent.can_nocow_extent.btrfs_get_blocks_direct_write.btrfs_dio_iomap_begin
0.37 ± 70% -0.2 0.14 ±173% perf-profile.calltrace.cycles-pp.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_mark_extent_written.btrfs_finish_ordered_io.btrfs_work_helper
1.29 ± 30% -0.2 1.07 ± 48% perf-profile.calltrace.cycles-pp.__btrfs_tree_lock.btrfs_search_slot.btrfs_lookup_csum.btrfs_csum_file_blocks.btrfs_finish_ordered_io
0.44 ± 73% -0.2 0.23 ±129% perf-profile.calltrace.cycles-pp.find_busiest_group.load_balance.rebalance_domains.__do_softirq.__irq_exit_rcu
0.49 ± 78% -0.2 0.30 ±100% perf-profile.calltrace.cycles-pp.btrfs_lookup_csums_list.csum_exist_in_range.can_nocow_file_extent.can_nocow_extent.btrfs_get_blocks_direct_write
1.25 ± 20% -0.2 1.06 ± 18% perf-profile.calltrace.cycles-pp.iomap_dio_bio_iter.__iomap_dio_rw.btrfs_dio_write.btrfs_direct_write.btrfs_do_write_iter
0.19 ±223% -0.2 0.00 perf-profile.calltrace.cycles-pp.intel_idle_irq.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
0.41 ± 73% -0.2 0.22 ±130% perf-profile.calltrace.cycles-pp.update_sd_lb_stats.find_busiest_group.load_balance.rebalance_domains.__do_softirq
0.60 ± 56% -0.2 0.42 ±112% perf-profile.calltrace.cycles-pp.osq_lock.rwsem_optimistic_spin.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_search_slot
0.17 ±141% -0.2 0.00 perf-profile.calltrace.cycles-pp.memcpy_extent_buffer.setup_items_for_insert.btrfs_duplicate_item.btrfs_mark_extent_written.btrfs_finish_ordered_io
1.84 ± 22% -0.2 1.67 ± 22% perf-profile.calltrace.cycles-pp.can_nocow_extent.btrfs_get_blocks_direct_write.btrfs_dio_iomap_begin.iomap_iter.__iomap_dio_rw
1.28 ± 24% -0.2 1.12 ± 19% perf-profile.calltrace.cycles-pp.can_nocow_file_extent.can_nocow_extent.btrfs_get_blocks_direct_write.btrfs_dio_iomap_begin.iomap_iter
0.38 ± 71% -0.2 0.22 ±130% perf-profile.calltrace.cycles-pp.__intel_pmu_enable_all.perf_rotate_context.perf_mux_hrtimer_handler.__hrtimer_run_queues.hrtimer_interrupt
1.03 ± 21% -0.2 0.87 ± 18% perf-profile.calltrace.cycles-pp.btrfs_submit_direct.iomap_dio_bio_iter.__iomap_dio_rw.btrfs_dio_write.btrfs_direct_write
0.80 ± 26% -0.2 0.64 ± 64% perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_insert_empty_items.btrfs_csum_file_blocks.btrfs_finish_ordered_io.btrfs_work_helper
0.14 ±223% -0.1 0.00 perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_lookup_csums_list.csum_exist_in_range.can_nocow_file_extent.can_nocow_extent
0.50 ± 46% -0.1 0.36 ±101% perf-profile.calltrace.cycles-pp.btrfs_extend_item.btrfs_csum_file_blocks.btrfs_finish_ordered_io.btrfs_work_helper.process_one_work
1.13 ± 23% -0.1 0.98 ± 47% perf-profile.calltrace.cycles-pp.btrfs_insert_empty_items.btrfs_csum_file_blocks.btrfs_finish_ordered_io.btrfs_work_helper.process_one_work
0.14 ±223% -0.1 0.00 perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.mwait_idle_with_hints.intel_idle_irq.cpuidle_enter_state.cpuidle_enter
0.19 ±142% -0.1 0.06 ±264% perf-profile.calltrace.cycles-pp.btrfs_csum_one_bio.btrfs_submit_direct.iomap_dio_bio_iter.__iomap_dio_rw.btrfs_dio_write
0.12 ±223% -0.1 0.00 perf-profile.calltrace.cycles-pp.__btrfs_tree_lock.btrfs_search_slot.btrfs_insert_empty_items.btrfs_csum_file_blocks.btrfs_finish_ordered_io
0.12 ±223% -0.1 0.00 perf-profile.calltrace.cycles-pp.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_search_slot.btrfs_insert_empty_items.btrfs_csum_file_blocks
0.11 ±223% -0.1 0.00 perf-profile.calltrace.cycles-pp.rwsem_optimistic_spin.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_search_slot.btrfs_insert_empty_items
0.18 ±141% -0.1 0.07 ±264% perf-profile.calltrace.cycles-pp.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_mark_extent_written.btrfs_finish_ordered_io
0.11 ±223% -0.1 0.00 perf-profile.calltrace.cycles-pp.btrfs_del_items.btrfs_mark_extent_written.btrfs_finish_ordered_io.btrfs_work_helper.process_one_work
0.10 ±223% -0.1 0.00 perf-profile.calltrace.cycles-pp.update_sg_lb_stats.update_sd_lb_stats.find_busiest_group.load_balance.rebalance_domains
0.09 ±223% -0.1 0.00 perf-profile.calltrace.cycles-pp.mwait_idle_with_hints.intel_idle_irq.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call
0.09 ±223% -0.1 0.00 perf-profile.calltrace.cycles-pp.btrfs_submit_bio.btrfs_submit_direct.iomap_dio_bio_iter.__iomap_dio_rw.btrfs_dio_write
0.08 ±223% -0.1 0.00 perf-profile.calltrace.cycles-pp.native_sched_clock.sched_clock_cpu.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call
0.32 ±103% -0.1 0.24 ±130% perf-profile.calltrace.cycles-pp.btrfs_create_dio_extent.btrfs_get_blocks_direct_write.btrfs_dio_iomap_begin.iomap_iter.__iomap_dio_rw
0.26 ±100% -0.1 0.21 ±129% perf-profile.calltrace.cycles-pp.update_rq_clock.scheduler_tick.update_process_times.tick_sched_handle.tick_sched_timer
0.17 ±141% -0.0 0.13 ±173% perf-profile.calltrace.cycles-pp.hrtimer_update_next_event.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
0.19 ±141% -0.0 0.16 ±175% perf-profile.calltrace.cycles-pp.btrfs_cross_ref_exist.can_nocow_file_extent.can_nocow_extent.btrfs_get_blocks_direct_write.btrfs_dio_iomap_begin
1.41 ± 11% -0.0 1.38 ± 9% perf-profile.calltrace.cycles-pp.perf_mux_hrtimer_handler.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt
0.89 ± 15% -0.0 0.87 ± 12% perf-profile.calltrace.cycles-pp.perf_rotate_context.perf_mux_hrtimer_handler.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt
0.78 ± 14% -0.0 0.75 ± 9% perf-profile.calltrace.cycles-pp.arch_scale_freq_tick.scheduler_tick.update_process_times.tick_sched_handle.tick_sched_timer
0.09 ±223% -0.0 0.07 ±264% perf-profile.calltrace.cycles-pp.timerqueue_add.enqueue_hrtimer.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt
1.34 ± 51% -0.0 1.32 ± 25% perf-profile.calltrace.cycles-pp.ktime_get.clockevents_program_event.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt
0.68 ± 53% -0.0 0.66 ± 42% perf-profile.calltrace.cycles-pp.load_balance.rebalance_domains.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt
0.64 ± 17% -0.0 0.63 ± 38% perf-profile.calltrace.cycles-pp.get_next_timer_interrupt.tick_nohz_next_event.tick_nohz_get_sleep_length.menu_select.cpuidle_idle_call
1.10 ± 19% -0.0 1.10 ± 11% perf-profile.calltrace.cycles-pp.lapic_next_deadline.clockevents_program_event.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt
2.56 ± 34% +0.0 2.57 ± 16% perf-profile.calltrace.cycles-pp.clockevents_program_event.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
0.30 ±100% +0.0 0.31 ±100% perf-profile.calltrace.cycles-pp.update_blocked_averages.run_rebalance_domains.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt
1.16 ± 22% +0.0 1.18 ± 13% perf-profile.calltrace.cycles-pp.rebalance_domains.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
0.31 ±100% +0.0 0.33 ±100% perf-profile.calltrace.cycles-pp.run_rebalance_domains.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
0.19 ±141% +0.0 0.22 ±129% perf-profile.calltrace.cycles-pp.hrtimer_next_event_without.tick_nohz_get_sleep_length.menu_select.cpuidle_idle_call.do_idle
1.98 ± 5% +0.0 2.01 ± 9% perf-profile.calltrace.cycles-pp.scheduler_tick.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues
0.41 ± 72% +0.0 0.45 ± 79% perf-profile.calltrace.cycles-pp.cpuidle_governor_latency_req.menu_select.cpuidle_idle_call.do_idle.cpu_startup_entry
0.73 ± 18% +0.1 0.79 ± 40% perf-profile.calltrace.cycles-pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.rest_init
0.00 +0.1 0.06 ±264% perf-profile.calltrace.cycles-pp.drm_atomic_helper_commit_tail_rpm.ast_mode_config_helper_atomic_commit_tail.commit_tail.drm_atomic_helper_commit.drm_atomic_commit
0.00 +0.1 0.06 ±264% perf-profile.calltrace.cycles-pp.btrfs_update_inode.btrfs_finish_ordered_io.btrfs_work_helper.process_one_work.worker_thread
0.00 +0.1 0.06 ±264% perf-profile.calltrace.cycles-pp._raw_spin_trylock.rebalance_domains.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt
0.00 +0.1 0.07 ±264% perf-profile.calltrace.cycles-pp.commit_tail.drm_atomic_helper_commit.drm_atomic_commit.drm_atomic_helper_dirtyfb.drm_fbdev_fb_dirty
0.00 +0.1 0.07 ±264% perf-profile.calltrace.cycles-pp.ast_mode_config_helper_atomic_commit_tail.commit_tail.drm_atomic_helper_commit.drm_atomic_commit.drm_atomic_helper_dirtyfb
0.63 ± 46% +0.1 0.70 ± 8% perf-profile.calltrace.cycles-pp.native_apic_msr_eoi_write.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state
0.00 +0.1 0.07 ±264% perf-profile.calltrace.cycles-pp.drm_atomic_commit.drm_atomic_helper_dirtyfb.drm_fbdev_fb_dirty.drm_fb_helper_damage_work.process_one_work
0.00 +0.1 0.07 ±264% perf-profile.calltrace.cycles-pp.drm_atomic_helper_commit.drm_atomic_commit.drm_atomic_helper_dirtyfb.drm_fbdev_fb_dirty.drm_fb_helper_damage_work
0.00 +0.1 0.07 ±264% perf-profile.calltrace.cycles-pp.drm_atomic_helper_dirtyfb.drm_fbdev_fb_dirty.drm_fb_helper_damage_work.process_one_work.worker_thread
0.81 ± 18% +0.1 0.88 ± 41% perf-profile.calltrace.cycles-pp.cpuidle_idle_call.do_idle.cpu_startup_entry.rest_init.arch_call_rest_init
0.00 +0.1 0.07 ±264% perf-profile.calltrace.cycles-pp.btrfs_replace_extent_map_range.create_io_em.btrfs_create_dio_extent.btrfs_get_blocks_direct_write.btrfs_dio_iomap_begin
0.00 +0.1 0.07 ±264% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.btrfs_inode_safe_disk_i_size_write.btrfs_finish_ordered_io.btrfs_work_helper
0.82 ± 18% +0.1 0.89 ± 41% perf-profile.calltrace.cycles-pp.cpu_startup_entry.rest_init.arch_call_rest_init.start_kernel.secondary_startup_64_no_verify
0.82 ± 18% +0.1 0.89 ± 41% perf-profile.calltrace.cycles-pp.start_kernel.secondary_startup_64_no_verify
0.82 ± 18% +0.1 0.89 ± 41% perf-profile.calltrace.cycles-pp.arch_call_rest_init.start_kernel.secondary_startup_64_no_verify
0.82 ± 18% +0.1 0.89 ± 41% perf-profile.calltrace.cycles-pp.rest_init.arch_call_rest_init.start_kernel.secondary_startup_64_no_verify
0.00 +0.1 0.07 ±264% perf-profile.calltrace.cycles-pp.asm_sysvec_irq_work.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
0.00 +0.1 0.07 ±264% perf-profile.calltrace.cycles-pp.sysvec_irq_work.asm_sysvec_irq_work.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt
0.00 +0.1 0.07 ±264% perf-profile.calltrace.cycles-pp.__sysvec_irq_work.sysvec_irq_work.asm_sysvec_irq_work.__do_softirq.__irq_exit_rcu
0.00 +0.1 0.07 ±264% perf-profile.calltrace.cycles-pp.irq_work_run.__sysvec_irq_work.sysvec_irq_work.asm_sysvec_irq_work.__do_softirq
0.82 ± 18% +0.1 0.89 ± 41% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.rest_init.arch_call_rest_init.start_kernel
0.00 +0.1 0.08 ±264% perf-profile.calltrace.cycles-pp.create_io_em.btrfs_create_dio_extent.btrfs_get_blocks_direct_write.btrfs_dio_iomap_begin.iomap_iter
0.00 +0.1 0.08 ±264% perf-profile.calltrace.cycles-pp._raw_spin_lock.btrfs_inode_safe_disk_i_size_write.btrfs_finish_ordered_io.btrfs_work_helper.process_one_work
0.32 ±102% +0.1 0.41 ± 78% perf-profile.calltrace.cycles-pp.rcu_pending.rcu_sched_clock_irq.update_process_times.tick_sched_handle.tick_sched_timer
0.00 +0.1 0.08 ±264% perf-profile.calltrace.cycles-pp.btrfs_inode_safe_disk_i_size_write.btrfs_finish_ordered_io.btrfs_work_helper.process_one_work.worker_thread
0.20 ±141% +0.1 0.29 ±100% perf-profile.calltrace.cycles-pp.enqueue_hrtimer.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt
0.11 ±223% +0.1 0.20 ±129% perf-profile.calltrace.cycles-pp.sched_clock_cpu.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
2.72 ± 12% +0.1 2.83 ± 12% perf-profile.calltrace.cycles-pp.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state
3.53 ± 12% +0.1 3.65 ± 17% perf-profile.calltrace.cycles-pp.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt
3.38 ± 9% +0.1 3.50 ± 12% perf-profile.calltrace.cycles-pp.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
0.56 ± 79% +0.1 0.69 ± 50% perf-profile.calltrace.cycles-pp.ktime_get.tick_nohz_irq_exit.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state
0.08 ±223% +0.1 0.22 ±130% perf-profile.calltrace.cycles-pp.asm_sysvec_irq_work.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
0.08 ±223% +0.1 0.22 ±130% perf-profile.calltrace.cycles-pp.sysvec_irq_work.asm_sysvec_irq_work.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call
0.08 ±223% +0.1 0.22 ±130% perf-profile.calltrace.cycles-pp.__sysvec_irq_work.sysvec_irq_work.asm_sysvec_irq_work.cpuidle_enter_state.cpuidle_enter
0.08 ±223% +0.1 0.22 ±130% perf-profile.calltrace.cycles-pp.irq_work_run.__sysvec_irq_work.sysvec_irq_work.asm_sysvec_irq_work.cpuidle_enter_state
3.81 ± 16% +0.2 3.96 ± 21% perf-profile.calltrace.cycles-pp.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt
0.10 ±223% +0.2 0.26 ±100% perf-profile.calltrace.cycles-pp.ct_idle_exit.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
0.68 ± 87% +0.2 0.86 ± 66% perf-profile.calltrace.cycles-pp.timekeeping_max_deferment.tick_nohz_next_event.tick_nohz_get_sleep_length.menu_select.cpuidle_idle_call
7.06 ± 14% +0.2 7.25 ± 19% perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
0.09 ±223% +0.2 0.28 ±100% perf-profile.calltrace.cycles-pp.drm_fb_helper_damage_work.process_one_work.worker_thread.kthread.ret_from_fork
0.09 ±223% +0.2 0.28 ±100% perf-profile.calltrace.cycles-pp.drm_fbdev_fb_dirty.drm_fb_helper_damage_work.process_one_work.worker_thread.kthread
2.59 ± 16% +0.2 2.79 ± 14% perf-profile.calltrace.cycles-pp.tick_nohz_get_sleep_length.menu_select.cpuidle_idle_call.do_idle.cpu_startup_entry
4.39 ± 12% +0.2 4.59 ± 18% perf-profile.calltrace.cycles-pp.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt
0.00 +0.2 0.21 ±129% perf-profile.calltrace.cycles-pp.note_gp_changes.rcu_core.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt
0.00 +0.2 0.21 ±129% perf-profile.calltrace.cycles-pp.wait_for_lsr.serial8250_console_write.console_emit_next_record.console_flush_all.console_unlock
0.58 ± 77% +0.2 0.79 ± 30% perf-profile.calltrace.cycles-pp.tick_nohz_irq_exit.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
0.08 ±223% +0.2 0.29 ±100% perf-profile.calltrace.cycles-pp.irq_work_run_list.irq_work_run.__sysvec_irq_work.sysvec_irq_work.asm_sysvec_irq_work
0.08 ±223% +0.2 0.29 ±100% perf-profile.calltrace.cycles-pp.irq_work_single.irq_work_run_list.irq_work_run.__sysvec_irq_work.sysvec_irq_work
0.08 ±223% +0.2 0.29 ±100% perf-profile.calltrace.cycles-pp._printk.irq_work_single.irq_work_run_list.irq_work_run.__sysvec_irq_work
0.08 ±223% +0.2 0.29 ±100% perf-profile.calltrace.cycles-pp.vprintk_emit._printk.irq_work_single.irq_work_run_list.irq_work_run
0.08 ±223% +0.2 0.29 ±100% perf-profile.calltrace.cycles-pp.console_unlock.vprintk_emit._printk.irq_work_single.irq_work_run_list
0.08 ±223% +0.2 0.29 ±100% perf-profile.calltrace.cycles-pp.console_flush_all.console_unlock.vprintk_emit._printk.irq_work_single
0.08 ±223% +0.2 0.29 ±100% perf-profile.calltrace.cycles-pp.console_emit_next_record.console_flush_all.console_unlock.vprintk_emit._printk
1.88 ± 20% +0.2 2.08 ± 23% perf-profile.calltrace.cycles-pp.tick_nohz_next_event.tick_nohz_get_sleep_length.menu_select.cpuidle_idle_call.do_idle
0.36 ± 70% +0.2 0.59 ± 9% perf-profile.calltrace.cycles-pp.rcu_core.__do_softirq.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
0.00 +0.3 0.29 ±100% perf-profile.calltrace.cycles-pp.serial8250_console_write.console_emit_next_record.console_flush_all.console_unlock.vprintk_emit
0.40 ±101% +0.3 0.71 ± 22% perf-profile.calltrace.cycles-pp.rcu_sched_clock_irq.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues
1.00 ± 41% +0.3 1.33 ± 55% perf-profile.calltrace.cycles-pp.tick_irq_enter.irq_enter_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state
12.19 ± 3% +0.3 12.53 ± 11% perf-profile.calltrace.cycles-pp.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
1.07 ± 36% +0.3 1.42 ± 51% perf-profile.calltrace.cycles-pp.irq_enter_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
11.16 ± 4% +0.3 11.50 ± 13% perf-profile.calltrace.cycles-pp.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state
0.22 ±143% +0.4 0.63 ± 43% perf-profile.calltrace.cycles-pp.ktime_get_update_offsets_now.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
0.39 ±110% +0.4 0.84 ± 87% perf-profile.calltrace.cycles-pp.ktime_get.tick_irq_enter.irq_enter_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
5.64 ± 15% +0.5 6.10 ± 7% perf-profile.calltrace.cycles-pp.menu_select.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary
18.26 ± 5% +0.9 19.15 ± 13% perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call
23.90 ± 4% +1.2 25.14 ± 9% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
33.70 ± 6% +3.2 36.86 ± 5% perf-profile.calltrace.cycles-pp.mwait_idle_with_hints.intel_idle.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call
34.03 ± 6% +3.2 37.21 ± 5% perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
64.80 ± 3% +3.2 67.99 ± 5% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry
65.46 ± 3% +3.3 68.82 ± 5% perf-profile.calltrace.cycles-pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary
74.07 ± 4% +3.7 77.82 ± 5% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
74.23 ± 4% +3.8 78.00 ± 5% perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64_no_verify
74.22 ± 4% +3.8 78.00 ± 5% perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
72.46 ± 4% +3.8 76.27 ± 5% perf-profile.calltrace.cycles-pp.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
75.05 ± 4% +3.9 78.95 ± 5% perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify
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
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