Greeting,
FYI, we noticed a 29.3% improvement of fio.write_iops due to commit:
commit: 7664aed02431897aff0c2c96c683176ba7ba72f6 ("[PATCH v2] btrfs: fix fallocate to use file_modified to update permissions consistently")
url: https://github.com/0day-ci/linux/commits/Darrick-J-Wong/btrfs-fix-fallocate-to-use-file_modified-to-update-permissions-consistently/20220315-015717
base: https://git.kernel.org/cgit/linux/kernel/git/kdave/linux.git for-next
patch link: https://lore.kernel.org/linux-btrfs/20220314175532.GB8165@magnolia
in testcase: fio-basic
on test machine: 96 threads 2 sockets Ice Lake with 256G memory
with following parameters:
runtime: 300s
disk: 1HDD
fs: btrfs
nr_task: 100%
test_size: 128G
rw: randwrite
bs: 4k
ioengine: ftruncate
cpufreq_governor: performance
ucode: 0xb000280
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
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.
=========================================================================================
bs/compiler/cpufreq_governor/disk/fs/ioengine/kconfig/nr_task/rootfs/runtime/rw/tbox_group/test_size/testcase/ucode:
4k/gcc-9/performance/1HDD/btrfs/ftruncate/x86_64-rhel-8.3/100%/debian-10.4-x86_64-20200603.cgz/300s/randwrite/lkp-icl-2sp1/128G/fio-basic/0xb000280
commit:
89a925d756 ("Merge branch 'for-next-current-v5.16-20220314' into for-next-20220314")
7664aed024 ("btrfs: fix fallocate to use file_modified to update permissions consistently")
89a925d7560844e1 7664aed02431897aff0c2c96c68
---------------- ---------------------------
%stddev %change %stddev
\ | \
25.54 -15.7 9.87 fio.latency_1000us%
9.23 ? 4% +9.9 19.17 fio.latency_10us%
9.58 +3.5 13.06 ? 2% fio.latency_20us%
0.31 ? 21% +0.3 0.62 ? 11% fio.latency_250us%
31.76 -4.3 27.44 fio.latency_2ms%
0.49 ? 29% +2.1 2.62 ? 10% fio.latency_4us%
4.48 -2.0 2.50 ? 3% fio.latency_500us%
1.29 ? 5% +0.4 1.64 ? 15% fio.latency_50us%
16.58 +5.5 22.06 fio.latency_750us%
274.60 -22.6% 212.58 fio.time.elapsed_time
274.60 -22.6% 212.58 fio.time.elapsed_time.max
4151 -25.2% 3103 ? 3% fio.time.involuntary_context_switches
39815 -19.3% 32135 ? 2% fio.time.minor_page_faults
949.33 -10.6% 848.83 fio.time.percent_of_cpu_this_job_got
2577 -31.1% 1774 fio.time.system_time
1.044e+08 -31.4% 71667735 fio.time.voluntary_context_switches
478.06 +29.3% 617.97 fio.write_bw_MBps
1318912 -6.4% 1234261 fio.write_clat_90%_us
1378986 -5.9% 1297066 fio.write_clat_95%_us
778778 -23.0% 599675 fio.write_clat_mean_us
122382 +29.3% 158201 fio.write_iops
485.84 -2.2% 475.03 pmeter.Average_Active_Power
2.374e+10 -21.6% 1.86e+10 cpuidle..time
1.498e+08 -28.4% 1.072e+08 cpuidle..usage
89.67 +1.3% 90.80 iostat.cpu.idle
10.18 -11.4% 9.02 iostat.cpu.system
81910 ? 15% -29.1% 58108 ? 21% meminfo.Active
2072 ? 2% -15.4% 1752 ? 2% meminfo.Active(file)
326.84 -19.2% 263.93 uptime.boot
28026 -18.5% 22848 uptime.idle
246.33 +22.1% 300.67 ? 5% vmstat.io.bo
748973 -11.5% 662479 vmstat.system.cs
0.01 ? 2% +0.0 0.01 ? 3% mpstat.cpu.all.iowait%
9.49 -1.1 8.35 mpstat.cpu.all.sys%
0.14 ? 5% +0.0 0.18 ? 5% mpstat.cpu.all.usr%
850.50 ? 22% +48.1% 1259 ? 6% numa-meminfo.node0.Active(file)
833.17 ? 89% +1557.5% 13809 ? 3% numa-meminfo.node0.Inactive(file)
75084 ? 11% -31.1% 51711 ? 18% numa-meminfo.node1.Active
73861 ? 11% -30.6% 51230 ? 19% numa-meminfo.node1.Active(anon)
1222 ? 15% -60.7% 480.00 ? 23% numa-meminfo.node1.Active(file)
96944 ? 20% +80.8% 175278 ? 30% numa-meminfo.node1.Inactive
83244 ? 24% +110.2% 174993 ? 30% numa-meminfo.node1.Inactive(anon)
13700 ? 5% -97.9% 284.67 ? 43% numa-meminfo.node1.Inactive(file)
25892 ? 33% +84.7% 47819 ? 26% numa-meminfo.node1.Mapped
517.00 ? 2% -15.9% 434.67 ? 3% proc-vmstat.nr_active_file
72537 +2.2% 74150 proc-vmstat.nr_anon_pages
17664 -13.5% 15278 proc-vmstat.nr_dirtied
3057 +3.8% 3174 proc-vmstat.nr_page_table_pages
16195 -9.3% 14686 ? 2% proc-vmstat.nr_written
517.00 ? 2% -15.9% 434.67 ? 3% proc-vmstat.nr_zone_active_file
1222395 ? 3% -14.6% 1043907 ? 5% proc-vmstat.pgfault
69030 -5.3% 65348 ? 4% proc-vmstat.pgpgout
59434 -20.0% 47550 proc-vmstat.pgreuse
375.33 -9.4% 340.17 turbostat.Avg_MHz
11.81 -1.1 10.72 turbostat.Busy%
803952 ? 4% -20.1% 642465 ? 11% turbostat.C1
1.474e+08 -28.6% 1.052e+08 turbostat.C1E
63.17 ? 3% +11.6% 70.50 ? 3% turbostat.CoreTmp
56497141 -22.1% 44010000 turbostat.IRQ
222267 -27.2% 161739 ? 2% turbostat.POLL
0.05 -0.0 0.04 turbostat.POLL%
63.33 ? 3% +11.6% 70.67 ? 3% turbostat.PkgTmp
206.89 +2.5% 212.16 turbostat.RAMWatt
211.00 ? 22% +49.3% 315.00 ? 6% numa-vmstat.node0.nr_active_file
1852 ? 53% +352.7% 8387 ? 5% numa-vmstat.node0.nr_dirtied
208.67 ? 89% +1552.1% 3447 ? 3% numa-vmstat.node0.nr_inactive_file
1806 ? 54% +360.4% 8317 ? 5% numa-vmstat.node0.nr_written
211.00 ? 22% +49.3% 315.00 ? 6% numa-vmstat.node0.nr_zone_active_file
208.67 ? 89% +1552.1% 3447 ? 3% numa-vmstat.node0.nr_zone_inactive_file
304.17 ? 15% -60.3% 120.83 ? 23% numa-vmstat.node1.nr_active_file
8877 ? 11% -92.1% 700.00 ? 80% numa-vmstat.node1.nr_dirtied
20207 ? 25% +115.1% 43458 ? 29% numa-vmstat.node1.nr_inactive_anon
3424 ? 5% -97.9% 70.83 ? 44% numa-vmstat.node1.nr_inactive_file
8813 ? 11% -92.5% 663.83 ? 83% numa-vmstat.node1.nr_written
304.17 ? 15% -60.3% 120.83 ? 23% numa-vmstat.node1.nr_zone_active_file
20208 ? 25% +115.1% 43458 ? 29% numa-vmstat.node1.nr_zone_inactive_anon
3424 ? 5% -97.9% 70.83 ? 44% numa-vmstat.node1.nr_zone_inactive_file
1.698e+09 +3.7% 1.761e+09 ? 2% perf-stat.i.branch-instructions
43843771 +4.5% 45825714 perf-stat.i.cache-misses
757981 -11.3% 672443 perf-stat.i.context-switches
4.42 -13.3% 3.83 perf-stat.i.cpi
3.73e+10 -9.6% 3.373e+10 perf-stat.i.cpu-cycles
2.303e+09 +4.8% 2.413e+09 perf-stat.i.dTLB-loads
1.214e+09 +6.4% 1.292e+09 perf-stat.i.dTLB-stores
8.441e+09 +4.5% 8.819e+09 perf-stat.i.instructions
0.23 +15.6% 0.27 perf-stat.i.ipc
18.63 +29.2% 24.08 perf-stat.i.major-faults
0.39 -9.6% 0.35 perf-stat.i.metric.GHz
55.76 +4.7% 58.39 perf-stat.i.metric.M/sec
309205 ? 3% +10.9% 342860 ? 3% perf-stat.i.node-loads
6312089 +4.1% 6571951 ? 2% perf-stat.i.node-store-misses
4.42 -13.4% 3.83 perf-stat.overall.cpi
850.93 -13.5% 736.28 perf-stat.overall.cycles-between-cache-misses
0.23 +15.5% 0.26 perf-stat.overall.ipc
69450 -19.1% 56170 perf-stat.overall.path-length
1.691e+09 +3.6% 1.752e+09 ? 2% perf-stat.ps.branch-instructions
43679256 +4.4% 45604378 perf-stat.ps.cache-misses
755089 -11.4% 669172 perf-stat.ps.context-switches
3.716e+10 -9.7% 3.357e+10 perf-stat.ps.cpu-cycles
2.295e+09 +4.7% 2.402e+09 perf-stat.ps.dTLB-loads
1.21e+09 +6.3% 1.286e+09 perf-stat.ps.dTLB-stores
8.41e+09 +4.4% 8.778e+09 perf-stat.ps.instructions
18.53 +29.1% 23.92 perf-stat.ps.major-faults
308133 ? 3% +10.8% 341314 ? 3% perf-stat.ps.node-loads
6288209 +4.0% 6540203 ? 2% perf-stat.ps.node-store-misses
2.33e+12 -19.1% 1.885e+12 perf-stat.total.instructions
21.14 -7.8 13.34 perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_truncate_inode_items.btrfs_setsize.btrfs_setattr.notify_change
17.67 -7.6 10.11 ? 2% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.rwsem_down_read_slowpath.__btrfs_tree_read_lock.btrfs_read_lock_root_node
24.00 -7.5 16.50 perf-profile.calltrace.cycles-pp.btrfs_truncate_inode_items.btrfs_setsize.btrfs_setattr.notify_change.do_truncate
18.11 -7.4 10.71 ? 2% perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.rwsem_down_read_slowpath.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot
5.86 -4.8 1.05 ? 2% perf-profile.calltrace.cycles-pp.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_lookup_file_extent.btrfs_get_extent
5.96 -4.8 1.18 ? 2% perf-profile.calltrace.cycles-pp.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_lookup_file_extent.btrfs_get_extent.btrfs_cont_expand
5.61 -4.6 0.97 ? 3% perf-profile.calltrace.cycles-pp.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_truncate_inode_items.btrfs_setsize
5.74 -4.6 1.11 ? 2% perf-profile.calltrace.cycles-pp.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_truncate_inode_items.btrfs_setsize.btrfs_setattr
5.41 -4.5 0.89 ? 2% perf-profile.calltrace.cycles-pp.rwsem_down_read_slowpath.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_truncate_inode_items
7.12 -4.1 3.00 perf-profile.calltrace.cycles-pp.btrfs_lookup_file_extent.btrfs_get_extent.btrfs_cont_expand.btrfs_setsize.btrfs_setattr
7.11 -4.1 2.99 perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_lookup_file_extent.btrfs_get_extent.btrfs_cont_expand.btrfs_setsize
7.89 ? 2% -3.9 3.97 perf-profile.calltrace.cycles-pp.btrfs_get_extent.btrfs_cont_expand.btrfs_setsize.btrfs_setattr.notify_change
14.14 ? 2% -3.5 10.61 ? 2% perf-profile.calltrace.cycles-pp.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot.btrfs_truncate_inode_items
14.35 ? 2% -3.5 10.86 ? 2% perf-profile.calltrace.cycles-pp.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot.btrfs_truncate_inode_items.btrfs_setsize
14.40 ? 2% -3.5 10.91 ? 2% perf-profile.calltrace.cycles-pp.btrfs_lock_root_node.btrfs_search_slot.btrfs_truncate_inode_items.btrfs_setsize.btrfs_setattr
10.27 -2.4 7.83 perf-profile.calltrace.cycles-pp.rwsem_down_read_slowpath.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_lookup_file_extent
77.81 -1.1 76.68 perf-profile.calltrace.cycles-pp.do_truncate.do_sys_ftruncate.do_syscall_64.entry_SYSCALL_64_after_hwframe.ftruncate64
77.91 -1.1 76.81 perf-profile.calltrace.cycles-pp.do_sys_ftruncate.do_syscall_64.entry_SYSCALL_64_after_hwframe.ftruncate64
77.98 -1.1 76.90 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.ftruncate64
78.01 -1.1 76.95 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.ftruncate64
78.31 -1.0 77.27 perf-profile.calltrace.cycles-pp.ftruncate64
0.67 -0.1 0.56 ? 3% perf-profile.calltrace.cycles-pp.rwsem_spin_on_owner.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot
0.55 ? 3% +0.0 0.60 ? 4% perf-profile.calltrace.cycles-pp.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
0.58 ? 5% +0.1 0.67 ? 3% perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
0.61 ? 3% +0.2 0.76 ? 4% perf-profile.calltrace.cycles-pp.try_to_wake_up.wake_up_q.rwsem_wake.btrfs_unlock_up_safe.btrfs_search_slot
0.64 ? 3% +0.2 0.80 ? 4% perf-profile.calltrace.cycles-pp.wake_up_q.rwsem_wake.btrfs_unlock_up_safe.btrfs_search_slot.btrfs_insert_empty_items
0.68 ? 5% +0.2 0.87 ? 3% perf-profile.calltrace.cycles-pp.btrfs_del_items.btrfs_truncate_inode_items.btrfs_setsize.btrfs_setattr.notify_change
0.87 ? 3% +0.3 1.20 ? 3% perf-profile.calltrace.cycles-pp.rwsem_wake.btrfs_unlock_up_safe.btrfs_search_slot.btrfs_insert_empty_items.btrfs_insert_file_extent
0.59 ? 3% +0.3 0.92 ? 30% perf-profile.calltrace.cycles-pp.start_transaction.btrfs_setsize.btrfs_setattr.notify_change.do_truncate
0.73 ? 5% +0.3 1.06 ? 4% perf-profile.calltrace.cycles-pp.memmove.memcpy_extent_buffer.setup_items_for_insert.btrfs_insert_empty_items.btrfs_insert_file_extent
0.91 ? 3% +0.3 1.26 ? 3% perf-profile.calltrace.cycles-pp.btrfs_unlock_up_safe.btrfs_search_slot.btrfs_insert_empty_items.btrfs_insert_file_extent.btrfs_cont_expand
0.78 ? 6% +0.4 1.14 ? 4% perf-profile.calltrace.cycles-pp.memcpy_extent_buffer.setup_items_for_insert.btrfs_insert_empty_items.btrfs_insert_file_extent.btrfs_cont_expand
11.54 ? 2% +0.4 11.96 perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry
0.56 ? 3% +0.5 1.08 ? 14% perf-profile.calltrace.cycles-pp.btrfs_dirty_inode.btrfs_setattr.notify_change.do_truncate.do_sys_ftruncate
0.08 ?223% +0.5 0.63 ? 3% perf-profile.calltrace.cycles-pp.btrfs_get_token_32.setup_items_for_insert.btrfs_insert_empty_items.btrfs_insert_file_extent.btrfs_cont_expand
0.00 +0.5 0.55 ? 3% perf-profile.calltrace.cycles-pp.schedule.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot
14.93 ? 2% +0.6 15.55 ? 2% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry.start_secondary
15.22 ? 2% +0.7 15.88 ? 2% perf-profile.calltrace.cycles-pp.cpuidle_enter.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
1.63 ? 5% +0.7 2.29 ? 3% perf-profile.calltrace.cycles-pp.setup_items_for_insert.btrfs_insert_empty_items.btrfs_insert_file_extent.btrfs_cont_expand.btrfs_setsize
20.42 ? 2% +0.8 21.22 perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify
20.12 ? 2% +0.8 20.93 perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
20.19 ? 2% +0.8 20.99 perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64_no_verify
20.18 ? 2% +0.8 20.98 perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
3.79 ? 3% +1.2 5.04 ? 2% perf-profile.calltrace.cycles-pp.rwsem_down_read_slowpath.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_insert_empty_items
4.00 ? 2% +1.3 5.32 ? 2% perf-profile.calltrace.cycles-pp.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_insert_empty_items.btrfs_insert_file_extent
4.11 ? 3% +1.4 5.47 ? 2% perf-profile.calltrace.cycles-pp.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_insert_empty_items.btrfs_insert_file_extent.btrfs_cont_expand
15.63 ? 2% +1.9 17.51 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_lock_root_node
16.14 +1.9 18.06 perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot
4.85 +2.3 7.14 perf-profile.calltrace.cycles-pp.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_lookup_file_extent.btrfs_drop_extents
4.97 ? 2% +2.3 7.29 perf-profile.calltrace.cycles-pp.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_lookup_file_extent.btrfs_drop_extents.btrfs_cont_expand
6.14 +2.9 9.02 perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_lookup_file_extent.btrfs_drop_extents.btrfs_cont_expand.btrfs_setsize
6.15 +2.9 9.04 perf-profile.calltrace.cycles-pp.btrfs_lookup_file_extent.btrfs_drop_extents.btrfs_cont_expand.btrfs_setsize.btrfs_setattr
72.34 +3.1 75.38 perf-profile.calltrace.cycles-pp.btrfs_setsize.btrfs_setattr.notify_change.do_truncate.do_sys_ftruncate
6.84 +3.1 9.96 perf-profile.calltrace.cycles-pp.btrfs_drop_extents.btrfs_cont_expand.btrfs_setsize.btrfs_setattr.notify_change
73.03 +3.6 76.62 perf-profile.calltrace.cycles-pp.notify_change.do_truncate.do_sys_ftruncate.do_syscall_64.entry_SYSCALL_64_after_hwframe
72.95 +3.6 76.55 perf-profile.calltrace.cycles-pp.btrfs_setattr.notify_change.do_truncate.do_sys_ftruncate.do_syscall_64
21.84 ? 2% +6.9 28.79 perf-profile.calltrace.cycles-pp.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot.btrfs_insert_empty_items
22.01 ? 2% +7.0 29.02 perf-profile.calltrace.cycles-pp.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot.btrfs_insert_empty_items.btrfs_insert_file_extent
22.05 ? 2% +7.0 29.08 perf-profile.calltrace.cycles-pp.btrfs_lock_root_node.btrfs_search_slot.btrfs_insert_empty_items.btrfs_insert_file_extent.btrfs_cont_expand
27.98 +9.1 37.05 perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_insert_empty_items.btrfs_insert_file_extent.btrfs_cont_expand.btrfs_setsize
46.10 +9.5 55.63 perf-profile.calltrace.cycles-pp.btrfs_cont_expand.btrfs_setsize.btrfs_setattr.notify_change.do_truncate
29.65 +9.8 39.40 perf-profile.calltrace.cycles-pp.btrfs_insert_empty_items.btrfs_insert_file_extent.btrfs_cont_expand.btrfs_setsize.btrfs_setattr
29.89 +9.8 39.70 perf-profile.calltrace.cycles-pp.btrfs_insert_file_extent.btrfs_cont_expand.btrfs_setsize.btrfs_setattr.notify_change
24.00 -7.5 16.51 perf-profile.children.cycles-pp.btrfs_truncate_inode_items
23.01 -7.4 15.61 perf-profile.children.cycles-pp.btrfs_read_lock_root_node
22.50 -7.4 15.13 perf-profile.children.cycles-pp.__btrfs_tree_read_lock
21.42 -7.1 14.32 perf-profile.children.cycles-pp.rwsem_down_read_slowpath
34.64 -4.8 29.83 perf-profile.children.cycles-pp._raw_spin_lock_irq
34.32 ? 2% -4.3 30.00 ? 2% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
67.15 -4.1 63.10 perf-profile.children.cycles-pp.btrfs_search_slot
7.90 ? 2% -3.9 3.98 perf-profile.children.cycles-pp.btrfs_get_extent
13.27 -1.2 12.04 perf-profile.children.cycles-pp.btrfs_lookup_file_extent
77.81 -1.1 76.69 perf-profile.children.cycles-pp.do_truncate
77.91 -1.1 76.82 perf-profile.children.cycles-pp.do_sys_ftruncate
78.22 -1.1 77.15 perf-profile.children.cycles-pp.do_syscall_64
78.25 -1.1 77.19 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
78.33 -1.0 77.30 perf-profile.children.cycles-pp.ftruncate64
1.43 -0.3 1.14 ? 3% perf-profile.children.cycles-pp.generic_bin_search
1.03 ? 2% -0.3 0.76 ? 3% perf-profile.children.cycles-pp.down_read
1.00 ? 2% -0.2 0.82 perf-profile.children.cycles-pp.up_read
2.49 ? 2% -0.2 2.31 ? 3% perf-profile.children.cycles-pp.btrfs_free_path
1.61 -0.2 1.45 perf-profile.children.cycles-pp.read_block_for_search
2.66 ? 2% -0.1 2.55 ? 2% perf-profile.children.cycles-pp.btrfs_release_path
0.59 ? 3% -0.1 0.51 ? 3% perf-profile.children.cycles-pp.btrfs_get_64
0.69 ? 2% -0.1 0.63 ? 3% perf-profile.children.cycles-pp.btrfs_root_node
0.74 ? 2% -0.0 0.70 perf-profile.children.cycles-pp.pick_next_task_fair
0.06 ? 7% +0.0 0.08 ? 6% perf-profile.children.cycles-pp.sysvec_call_function_single
0.08 +0.0 0.10 ? 5% perf-profile.children.cycles-pp.asm_sysvec_call_function_single
0.05 ? 7% +0.0 0.07 ? 8% perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.04 ? 44% +0.0 0.06 ? 7% perf-profile.children.cycles-pp.btrfs_inode_safe_disk_i_size_write
0.29 ? 2% +0.0 0.31 ? 3% perf-profile.children.cycles-pp.sched_clock_cpu
0.07 +0.0 0.09 ? 10% perf-profile.children.cycles-pp.__cond_resched
0.06 ? 6% +0.0 0.08 ? 8% perf-profile.children.cycles-pp.btrfs_leaf_free_space
0.08 ? 8% +0.0 0.10 ? 4% perf-profile.children.cycles-pp.leaf_space_used
0.07 ? 12% +0.0 0.10 ? 9% perf-profile.children.cycles-pp.fill_stack_inode_item
0.10 ? 6% +0.0 0.12 ? 8% perf-profile.children.cycles-pp.__lookup_extent_mapping
0.17 ? 5% +0.0 0.20 ? 2% perf-profile.children.cycles-pp.native_irq_return_iret
0.08 ? 12% +0.0 0.10 ? 10% perf-profile.children.cycles-pp.copy_pages
0.09 ? 7% +0.0 0.12 ? 9% perf-profile.children.cycles-pp.alloc_extent_state
0.07 ? 7% +0.0 0.09 ? 11% perf-profile.children.cycles-pp.free_extent_map
0.07 ? 5% +0.0 0.10 ? 10% perf-profile.children.cycles-pp.btrfs_block_rsv_migrate
0.09 ? 4% +0.0 0.12 ? 3% perf-profile.children.cycles-pp.memset_erms
0.11 ? 10% +0.0 0.14 ? 3% perf-profile.children.cycles-pp.btrfs_get_32
0.18 ? 2% +0.0 0.21 ? 6% perf-profile.children.cycles-pp.__might_resched
0.10 ? 5% +0.0 0.13 ? 4% perf-profile.children.cycles-pp.clear_extent_bit
0.07 ? 9% +0.0 0.11 ? 8% perf-profile.children.cycles-pp.get_io_u
0.10 ? 6% +0.0 0.14 ? 2% perf-profile.children.cycles-pp.up_write
0.14 ? 7% +0.0 0.17 ? 2% perf-profile.children.cycles-pp.btrfs_mark_buffer_dirty
0.09 ? 5% +0.0 0.12 ? 4% perf-profile.children.cycles-pp.clear_state_bit
0.15 ? 6% +0.0 0.19 ? 8% perf-profile.children.cycles-pp.kmem_cache_free
0.54 ? 3% +0.0 0.59 ? 5% perf-profile.children.cycles-pp.__softirqentry_text_start
0.11 ? 6% +0.0 0.15 ? 3% perf-profile.children.cycles-pp.btrfs_inode_clear_file_extent_range
0.08 ? 6% +0.0 0.12 ? 5% perf-profile.children.cycles-pp.fio_gettime
0.36 ? 3% +0.0 0.41 ? 2% perf-profile.children.cycles-pp.read_extent_buffer
0.61 ? 3% +0.0 0.66 ? 4% perf-profile.children.cycles-pp.irq_exit_rcu
0.02 ?142% +0.1 0.08 ? 6% perf-profile.children.cycles-pp.ktime_get_real_ts64
0.07 ? 12% +0.1 0.13 ? 4% perf-profile.children.cycles-pp.btrfs_put_transaction
0.16 ? 5% +0.1 0.22 ? 5% perf-profile.children.cycles-pp.alloc_extent_map
0.17 ? 6% +0.1 0.24 ? 7% perf-profile.children.cycles-pp.__reserve_bytes
0.44 ? 6% +0.1 0.51 ? 6% perf-profile.children.cycles-pp.tick_sched_timer
0.24 ? 4% +0.1 0.31 ? 5% perf-profile.children.cycles-pp.check_setget_bounds
0.32 ? 7% +0.1 0.40 ? 2% perf-profile.children.cycles-pp.memmove_extent_buffer
0.18 ? 3% +0.1 0.26 ? 4% perf-profile.children.cycles-pp.btrfs_block_rsv_add_bytes
0.25 ? 5% +0.1 0.34 ? 4% perf-profile.children.cycles-pp.wake_q_add
0.21 ? 5% +0.1 0.30 ? 4% perf-profile.children.cycles-pp.__clear_extent_bit
0.21 ? 4% +0.1 0.30 ? 4% perf-profile.children.cycles-pp.btrfs_reserve_metadata_bytes
0.69 ? 4% +0.1 0.78 ? 3% perf-profile.children.cycles-pp.__hrtimer_run_queues
0.70 ? 2% +0.1 0.80 ? 3% perf-profile.children.cycles-pp.rwsem_mark_wake
0.41 ? 2% +0.1 0.50 ? 3% perf-profile.children.cycles-pp.kmem_cache_alloc
0.18 ? 5% +0.1 0.28 ? 3% perf-profile.children.cycles-pp.mutex_lock
0.99 +0.1 1.09 ? 2% perf-profile.children.cycles-pp.rwsem_spin_on_owner
0.22 ? 6% +0.1 0.32 ? 3% perf-profile.children.cycles-pp.btrfs_set_token_32
0.46 ? 4% +0.1 0.56 perf-profile.children.cycles-pp.down_write
0.20 ? 6% +0.1 0.31 ? 6% perf-profile.children.cycles-pp.btrfs_update_root_times
0.41 ? 2% +0.1 0.54 ? 4% perf-profile.children.cycles-pp.btrfs_drop_extent_cache
0.37 ? 2% +0.2 0.52 ? 4% perf-profile.children.cycles-pp.btrfs_block_rsv_add
2.61 +0.2 2.79 ? 2% perf-profile.children.cycles-pp.wake_up_q
0.34 ? 8% +0.2 0.52 ? 7% perf-profile.children.cycles-pp.mutex_unlock
0.69 ? 5% +0.2 0.89 ? 2% perf-profile.children.cycles-pp.btrfs_del_items
0.18 ? 4% +0.2 0.38 ? 78% perf-profile.children.cycles-pp.wait_current_trans
0.67 ? 5% +0.2 0.88 ? 2% perf-profile.children.cycles-pp.btrfs_get_token_32
0.22 ? 5% +0.2 0.46 ? 4% perf-profile.children.cycles-pp.btrfs_trans_release_metadata
0.28 ? 3% +0.2 0.53 ? 26% perf-profile.children.cycles-pp.join_transaction
0.59 ? 2% +0.3 0.84 ? 3% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
0.24 ? 5% +0.3 0.49 ? 4% perf-profile.children.cycles-pp.btrfs_block_rsv_release
0.92 ? 2% +0.3 1.26 ? 2% perf-profile.children.cycles-pp.btrfs_unlock_up_safe
3.17 ? 2% +0.4 3.52 ? 2% perf-profile.children.cycles-pp.rwsem_wake
0.88 ? 6% +0.4 1.28 ? 4% perf-profile.children.cycles-pp.memcpy_extent_buffer
11.72 ? 2% +0.4 12.15 perf-profile.children.cycles-pp.intel_idle
1.10 ? 5% +0.4 1.54 ? 3% perf-profile.children.cycles-pp.memmove
0.48 ? 4% +0.4 0.93 ? 3% perf-profile.children.cycles-pp.__btrfs_end_transaction
0.56 ? 4% +0.5 1.09 ? 14% perf-profile.children.cycles-pp.btrfs_dirty_inode
15.41 ? 2% +0.7 16.06 ? 2% perf-profile.children.cycles-pp.cpuidle_enter
15.38 ? 2% +0.7 16.03 ? 2% perf-profile.children.cycles-pp.cpuidle_enter_state
1.66 ? 5% +0.7 2.33 ? 3% perf-profile.children.cycles-pp.setup_items_for_insert
1.12 +0.7 1.83 ? 24% perf-profile.children.cycles-pp.start_transaction
20.41 ? 2% +0.8 21.20 perf-profile.children.cycles-pp.do_idle
20.42 ? 2% +0.8 21.22 perf-profile.children.cycles-pp.secondary_startup_64_no_verify
20.42 ? 2% +0.8 21.22 perf-profile.children.cycles-pp.cpu_startup_entry
20.19 ? 2% +0.8 20.99 perf-profile.children.cycles-pp.start_secondary
72.34 +3.1 75.40 perf-profile.children.cycles-pp.btrfs_setsize
6.85 +3.1 9.96 perf-profile.children.cycles-pp.btrfs_drop_extents
36.09 ? 2% +3.5 39.62 perf-profile.children.cycles-pp.rwsem_down_write_slowpath
36.46 ? 2% +3.5 40.00 perf-profile.children.cycles-pp.btrfs_lock_root_node
72.96 +3.6 76.55 perf-profile.children.cycles-pp.btrfs_setattr
73.03 +3.6 76.63 perf-profile.children.cycles-pp.notify_change
36.52 ? 2% +3.6 40.16 perf-profile.children.cycles-pp.__btrfs_tree_lock
46.11 +9.5 55.64 perf-profile.children.cycles-pp.btrfs_cont_expand
29.65 +9.7 39.40 perf-profile.children.cycles-pp.btrfs_insert_empty_items
29.89 +9.8 39.70 perf-profile.children.cycles-pp.btrfs_insert_file_extent
34.31 ? 2% -4.3 29.99 ? 2% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
1.24 -0.3 0.96 ? 3% perf-profile.self.cycles-pp.generic_bin_search
0.98 ? 2% -0.3 0.72 ? 3% perf-profile.self.cycles-pp.down_read
1.27 ? 2% -0.2 1.03 ? 2% perf-profile.self.cycles-pp.rwsem_down_read_slowpath
0.99 ? 2% -0.2 0.81 perf-profile.self.cycles-pp.up_read
1.74 -0.1 1.61 perf-profile.self.cycles-pp.btrfs_search_slot
0.48 ? 2% -0.1 0.40 ? 3% perf-profile.self.cycles-pp.btrfs_get_64
1.01 ? 2% -0.1 0.95 ? 3% perf-profile.self.cycles-pp._raw_spin_lock_irq
0.68 ? 3% -0.1 0.63 ? 3% perf-profile.self.cycles-pp.btrfs_root_node
0.05 +0.0 0.07 ? 7% perf-profile.self.cycles-pp.btrfs_drop_extent_cache
0.08 ? 7% +0.0 0.10 ? 7% perf-profile.self.cycles-pp.schedule
0.21 ? 4% +0.0 0.23 ? 3% perf-profile.self.cycles-pp.read_tsc
0.07 ? 11% +0.0 0.09 ? 8% perf-profile.self.cycles-pp.btrfs_setsize
0.17 ? 5% +0.0 0.20 ? 2% perf-profile.self.cycles-pp.try_to_wake_up
0.17 ? 5% +0.0 0.20 ? 2% perf-profile.self.cycles-pp.native_irq_return_iret
0.07 ? 11% +0.0 0.10 ? 9% perf-profile.self.cycles-pp.setup_items_for_insert
0.08 ? 12% +0.0 0.10 ? 10% perf-profile.self.cycles-pp.copy_pages
0.06 ? 13% +0.0 0.09 ? 8% perf-profile.self.cycles-pp.btrfs_cont_expand
0.06 ? 7% +0.0 0.09 ? 11% perf-profile.self.cycles-pp.free_extent_map
0.09 +0.0 0.12 ? 3% perf-profile.self.cycles-pp.memset_erms
0.08 ? 13% +0.0 0.11 ? 5% perf-profile.self.cycles-pp.__btrfs_release_delayed_node
0.10 ? 10% +0.0 0.13 ? 6% perf-profile.self.cycles-pp.btrfs_get_32
0.16 ? 2% +0.0 0.20 ? 6% perf-profile.self.cycles-pp.__might_resched
0.10 ? 6% +0.0 0.14 ? 3% perf-profile.self.cycles-pp.up_write
0.07 ? 11% +0.0 0.10 ? 9% perf-profile.self.cycles-pp.get_io_u
0.07 ? 6% +0.0 0.11 ? 6% perf-profile.self.cycles-pp.fio_gettime
0.02 ?141% +0.0 0.06 ? 8% perf-profile.self.cycles-pp._raw_write_lock
0.19 ? 3% +0.0 0.23 ? 5% perf-profile.self.cycles-pp.kmem_cache_alloc
0.14 ? 8% +0.0 0.18 ? 7% perf-profile.self.cycles-pp.kmem_cache_free
0.19 ? 7% +0.0 0.24 ? 5% perf-profile.self.cycles-pp.check_setget_bounds
0.13 ? 6% +0.0 0.18 ? 2% perf-profile.self.cycles-pp.wake_up_q
0.36 ? 2% +0.0 0.40 ? 3% perf-profile.self.cycles-pp.read_extent_buffer
0.01 ?223% +0.0 0.06 ? 9% perf-profile.self.cycles-pp.btrfs_truncate_inode_items
0.06 ? 8% +0.0 0.10 ? 9% perf-profile.self.cycles-pp.btrfs_block_rsv_release
0.48 ? 4% +0.1 0.53 ? 2% perf-profile.self.cycles-pp.cpuidle_enter_state
0.01 ?223% +0.1 0.06 ? 7% perf-profile.self.cycles-pp.btrfs_reserve_metadata_bytes
0.08 ? 5% +0.1 0.15 ? 4% perf-profile.self.cycles-pp.btrfs_update_inode
0.07 ? 7% +0.1 0.13 ? 4% perf-profile.self.cycles-pp.btrfs_put_transaction
0.17 ? 6% +0.1 0.25 ? 4% perf-profile.self.cycles-pp.btrfs_set_token_32
0.17 ? 4% +0.1 0.25 ? 6% perf-profile.self.cycles-pp.start_transaction
0.14 ? 6% +0.1 0.22 ? 5% perf-profile.self.cycles-pp.mutex_lock
0.25 ? 5% +0.1 0.34 ? 4% perf-profile.self.cycles-pp.wake_q_add
0.38 ? 4% +0.1 0.48 ? 2% perf-profile.self.cycles-pp.down_write
0.32 ? 4% +0.1 0.41 ? 5% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.97 ? 2% +0.1 1.06 ? 2% perf-profile.self.cycles-pp.rwsem_spin_on_owner
0.18 ? 6% +0.1 0.28 ? 3% perf-profile.self.cycles-pp.join_transaction
0.85 ? 3% +0.1 0.96 ? 2% perf-profile.self.cycles-pp.rwsem_down_write_slowpath
0.16 ? 2% +0.1 0.29 ? 2% perf-profile.self.cycles-pp.__btrfs_end_transaction
0.61 ? 5% +0.2 0.79 ? 3% perf-profile.self.cycles-pp.btrfs_get_token_32
0.33 ? 8% +0.2 0.52 ? 7% perf-profile.self.cycles-pp.mutex_unlock
11.69 ? 2% +0.4 12.12 perf-profile.self.cycles-pp.intel_idle
1.10 ? 5% +0.4 1.53 ? 3% perf-profile.self.cycles-pp.memmove
1.63 ? 2% +0.5 2.11 ? 2% 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.
--
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https://01.org/lkp