On 2021/1/12 下午11:24, kernel test robot wrote:
Greeting,
FYI, we noticed a -70.1% regression of stress-ng.utime.ops_per_sec due to
commit:
commit: e86bb85b1fec48bcb8dfb79ec9f104d1a38fda78 ("[PATCH] btrfs: make
btrfs_dirty_inode() to always reserve metadata space")
url:
https://github.com/0day-ci/linux/commits/Qu-Wenruo/btrfs-make-btrfs_dirty_inode-to-always-reserve-metadata-space/20210108-134133
base: https://git.kernel.org/cgit/linux/kernel/git/kdave/linux.git for-next
in testcase: stress-ng
on test machine: 96 threads Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 512G
memory
with following parameters:
nr_threads: 10%
disk: 1HDD
testtime: 30s
class: filesystem
cpufreq_governor: performance
ucode: 0x5003003
fs: btrfs
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.s...@intel.com>
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
=========================================================================================
class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/testcase/testtime/ucode:
filesystem/gcc-9/performance/1HDD/btrfs/x86_64-rhel-8.3/10%/debian-10.4-x86_64-20200603.cgz/lkp-csl-2sp7/stress-ng/30s/0x5003003
commit:
97847e0652 ("Merge branch 'for-next-next-v5.10-20201211' into
for-next-20201211")
e86bb85b1f ("btrfs: make btrfs_dirty_inode() to always reserve metadata
space")
97847e06525b51ea e86bb85b1fec48bcb8dfb79ec9f
---------------- ---------------------------
%stddev %change %stddev
\ | \
1098218 -40.4% 654054 stress-ng.access.ops
36607 -40.4% 21801 stress-ng.access.ops_per_sec
This is a little interesting.
Although accessing an inode will update its atime, but don't we have
lazy_atime mount option?
92962 ± 2% -44.1% 51992 ± 3% stress-ng.chmod.ops
3098 ± 2% -44.1% 1733 ± 3% stress-ng.chmod.ops_per_sec
936128 ± 6% -41.0% 552284 stress-ng.chown.ops
31204 ± 6% -41.0% 18409 stress-ng.chown.ops_per_sec
1939514 -18.5% 1580533 stress-ng.fcntl.ops
64650 -18.5% 52684 stress-ng.fcntl.ops_per_sec
3705607 ± 2% -70.1% 1109769 stress-ng.utime.ops
123519 ± 2% -70.1% 36992 stress-ng.utime.ops_per_sec
Another interesting part is, only stress-ng is reporting such
regressioin on the commit?
No other report on the commit with different test env? E.g. NVME SSD?
Above operations is affected by such commit, but I'm a little surprised
only one report here.
Just because flushing on HDD is more expensive? If no other test suite
is fine, I would prefer to accept the drop, as it really streamline the
operations.
Thanks,
Qu
381.20 ± 6% +12.3% 428.27 ± 9% sched_debug.cfs_rq:/.load_avg.avg
6316 ± 57% -79.8% 1278 ± 68% softirqs.CPU77.BLOCK
10488 ±101% -89.5% 1100 ±124% softirqs.CPU78.BLOCK
5605 ± 92% -82.3% 990.50 ± 32% softirqs.CPU80.BLOCK
6094 ±128% -89.9% 614.50 ± 44% softirqs.CPU92.BLOCK
4921 ± 9% +20.5% 5931 ± 5%
slabinfo.dmaengine-unmap-16.active_objs
4922 ± 9% +20.5% 5933 ± 5%
slabinfo.dmaengine-unmap-16.num_objs
9818 ± 5% -6.9% 9139 ± 3%
slabinfo.kmalloc-rcl-256.active_objs
49223 ± 3% -18.4% 40177 ± 3%
slabinfo.radix_tree_node.active_objs
903.25 ± 3% -18.0% 740.50 ± 3%
slabinfo.radix_tree_node.active_slabs
50620 ± 3% -18.0% 41505 ± 3% slabinfo.radix_tree_node.num_objs
903.25 ± 3% -18.0% 740.50 ± 3%
slabinfo.radix_tree_node.num_slabs
9927 ± 3% +5.8% 10504 proc-vmstat.nr_active_anon
6043459 ± 2% -2.2% 5911900 proc-vmstat.nr_dirtied
1125 -6.1% 1056 ± 4% proc-vmstat.nr_dirty
20361 ± 2% +4.7% 21309 proc-vmstat.nr_shmem
66221 -4.3% 63404 ± 2% proc-vmstat.nr_slab_reclaimable
9927 ± 3% +5.8% 10504 proc-vmstat.nr_zone_active_anon
1225 -5.8% 1154 ± 3% proc-vmstat.nr_zone_write_pending
11313111 -2.1% 11072335 proc-vmstat.pgfault
0.00 +125.0% 0.00 ± 19%
perf-sched.sch_delay.avg.ms.preempt_schedule_common._cond_resched.kmem_cache_alloc.start_transaction.btrfs_dirty_inode
0.01 ± 13% -24.5% 0.01 ± 15%
perf-sched.sch_delay.max.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
3.26 ± 41% -98.8% 0.04
perf-sched.sch_delay.max.ms.rwsem_down_write_slowpath.chmod_common.do_fchmodat.__x64_sys_chmod
0.00 ± 50% +123.5% 0.01 ± 24%
perf-sched.sch_delay.max.ms.wait_for_partner.fifo_open.do_dentry_open.path_openat
4.77 ± 6% -25.7% 3.54 perf-sched.total_sch_delay.max.ms
0.02 ± 7% +19.5% 0.02 ± 5%
perf-sched.wait_and_delay.avg.ms.rwsem_down_write_slowpath.chmod_common.do_fchmodat.__x64_sys_fchmodat
1711 ± 27% +60.7% 2750 ± 22%
perf-sched.wait_and_delay.count.rwsem_down_write_slowpath.chmod_common.__x64_sys_fchmod.do_syscall_64
0.03 ±132% +2497.6% 0.81 ± 66%
perf-sched.wait_time.avg.ms.preempt_schedule_common._cond_resched.dput.path_put.do_fchmodat
0.25 ± 67% +243.4% 0.86 ± 49%
perf-sched.wait_time.avg.ms.preempt_schedule_common._cond_resched.kmem_cache_alloc.start_transaction.btrfs_dirty_inode
0.02 ± 11% +28.6% 0.02 ± 13%
perf-sched.wait_time.avg.ms.rwsem_down_write_slowpath.chmod_common.do_fchmodat.__x64_sys_chmod
0.27 ±160% +1248.5% 3.67 ± 57%
perf-sched.wait_time.max.ms.preempt_schedule_common._cond_resched.dput.path_put.do_fchmodat
0.04 ±165% +4851.4% 2.17 ± 99%
perf-sched.wait_time.max.ms.preempt_schedule_common._cond_resched.mnt_want_write.chmod_common.do_fchmodat
36969238 -5.8% 34829162 ± 2% perf-stat.i.cache-misses
2.009e+09 -2.7% 1.954e+09 perf-stat.i.dTLB-stores
12297175 ± 2% -6.5% 11500340 perf-stat.i.iTLB-load-misses
1843 +7.0% 1972 ± 2%
perf-stat.i.instructions-per-iTLB-miss
8936 -2.2% 8740 perf-stat.i.minor-faults
952962 -3.6% 919068 perf-stat.i.node-loads
5348157 -7.4% 4950006 ± 2% perf-stat.i.node-store-misses
8942 -2.2% 8748 perf-stat.i.page-faults
0.00 ± 20% +0.0 0.00 ± 18%
perf-stat.overall.dTLB-store-miss-rate%
1263 +6.1% 1339
perf-stat.overall.instructions-per-iTLB-miss
36924576 -5.8% 34784593 ± 2% perf-stat.ps.cache-misses
2.003e+09 -2.7% 1.949e+09 perf-stat.ps.dTLB-stores
12274047 ± 2% -6.5% 11479296 perf-stat.ps.iTLB-load-misses
8880 -2.1% 8694 perf-stat.ps.minor-faults
950813 -3.6% 916929 perf-stat.ps.node-loads
5343222 -7.5% 4944422 ± 2% perf-stat.ps.node-store-misses
8887 -2.1% 8702 perf-stat.ps.page-faults
57.00 ±166% -100.0% 0.00
interrupts.92:PCI-MSI.31981625-edge.i40e-eth0-TxRx-56
19339 ± 7% +31.3% 25385 ± 16%
interrupts.CPU13.CAL:Function_call_interrupts
19917 ± 5% +9.7% 21856
interrupts.CPU23.TLB:TLB_shootdowns
20940 ± 5% +9.5% 22935 ± 4%
interrupts.CPU29.CAL:Function_call_interrupts
3470 ± 65% -96.1% 136.75 ± 5%
interrupts.CPU29.NMI:Non-maskable_interrupts
3470 ± 65% -96.1% 136.75 ± 5%
interrupts.CPU29.PMI:Performance_monitoring_interrupts
2061 ±160% -93.5% 134.00 ± 3%
interrupts.CPU33.NMI:Non-maskable_interrupts
2061 ±160% -93.5% 134.00 ± 3%
interrupts.CPU33.PMI:Performance_monitoring_interrupts
3041 ± 47% +75.6% 5342 ± 36%
interrupts.CPU35.RES:Rescheduling_interrupts
3748 ± 96% -96.5% 133.00 ± 5%
interrupts.CPU40.NMI:Non-maskable_interrupts
3748 ± 96% -96.5% 133.00 ± 5%
interrupts.CPU40.PMI:Performance_monitoring_interrupts
21172 ± 5% -12.7% 18476 ± 6%
interrupts.CPU45.CAL:Function_call_interrupts
56.25 ±169% -100.0% 0.00
interrupts.CPU56.92:PCI-MSI.31981625-edge.i40e-eth0-TxRx-56
122.50 ± 25% -34.5% 80.25 ± 32%
interrupts.CPU56.NMI:Non-maskable_interrupts
122.50 ± 25% -34.5% 80.25 ± 32%
interrupts.CPU56.PMI:Performance_monitoring_interrupts
21585 ± 5% +13.4% 24479 ± 5%
interrupts.CPU58.TLB:TLB_shootdowns
3340 ± 22% +76.3% 5888 ± 48%
interrupts.CPU62.RES:Rescheduling_interrupts
23969 ± 5% +12.5% 26976 ± 14%
interrupts.CPU66.CAL:Function_call_interrupts
22832 ± 5% +26.5% 28873 ± 14%
interrupts.CPU69.CAL:Function_call_interrupts
2329 ±106% -66.3% 784.50 ±150%
interrupts.CPU73.NMI:Non-maskable_interrupts
2329 ±106% -66.3% 784.50 ±150%
interrupts.CPU73.PMI:Performance_monitoring_interrupts
3520 ± 65% -96.7% 116.00 ± 27%
interrupts.CPU77.NMI:Non-maskable_interrupts
3520 ± 65% -96.7% 116.00 ± 27%
interrupts.CPU77.PMI:Performance_monitoring_interrupts
1570 ±156% -93.6% 101.00 ± 37%
interrupts.CPU81.NMI:Non-maskable_interrupts
1570 ±156% -93.6% 101.00 ± 37%
interrupts.CPU81.PMI:Performance_monitoring_interrupts
2501 ±109% -95.9% 102.75 ± 41%
interrupts.CPU88.NMI:Non-maskable_interrupts
2501 ±109% -95.9% 102.75 ± 41%
interrupts.CPU88.PMI:Performance_monitoring_interrupts
5208 ± 44% -48.6% 2674 ± 46%
interrupts.CPU9.RES:Rescheduling_interrupts
20273 ± 10% +22.3% 24803 ± 11%
interrupts.CPU91.CAL:Function_call_interrupts
1833 ±158% -93.6% 117.75 ± 24%
interrupts.CPU94.NMI:Non-maskable_interrupts
1833 ±158% -93.6% 117.75 ± 24%
interrupts.CPU94.PMI:Performance_monitoring_interrupts
47.69 ± 11% -27.3 20.39 ± 3%
perf-profile.calltrace.cycles-pp.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
20.56 ± 11% -12.1 8.50 ± 3%
perf-profile.calltrace.cycles-pp.prepare_creds.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
18.78 ± 11% -11.9 6.92 ± 3%
perf-profile.calltrace.cycles-pp.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.42 ± 12% -3.8 1.60 ± 3%
perf-profile.calltrace.cycles-pp.free_uid.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.38 ± 12% -3.8 1.57 ± 3%
perf-profile.calltrace.cycles-pp.refcount_dec_and_lock_irqsave.free_uid.put_cred_rcu.do_faccessat.do_syscall_64
5.36 ± 12% -3.8 1.56 ± 3%
perf-profile.calltrace.cycles-pp.refcount_dec_not_one.refcount_dec_and_lock_irqsave.free_uid.put_cred_rcu.do_faccessat
5.32 ± 11% -3.1 2.19 ± 3%
perf-profile.calltrace.cycles-pp.key_put.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.17 ± 11% -2.4 2.74 ± 4%
perf-profile.calltrace.cycles-pp.security_prepare_creds.prepare_creds.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
4.77 ± 8% -2.3 2.50 ± 4%
perf-profile.calltrace.cycles-pp.btrfs_update_inode.btrfs_dirty_inode.btrfs_setattr.notify_change.chmod_common
3.79 ± 7% -2.0 1.84 ± 4%
perf-profile.calltrace.cycles-pp.btrfs_delayed_update_inode.btrfs_update_inode.btrfs_dirty_inode.btrfs_setattr.notify_change
3.54 ± 12% -1.8 1.74 ± 4%
perf-profile.calltrace.cycles-pp.apparmor_cred_prepare.security_prepare_creds.prepare_creds.do_faccessat.do_syscall_64
3.49 ± 9% -1.8 1.72 ± 6%
perf-profile.calltrace.cycles-pp.security_cred_free.put_cred_rcu.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.49 ± 9% -1.4 1.08 ± 8%
perf-profile.calltrace.cycles-pp.apparmor_cred_free.security_cred_free.put_cred_rcu.do_faccessat.do_syscall_64
3.38 ± 11% -1.3 2.04 ± 6%
perf-profile.calltrace.cycles-pp.filename_lookup.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
3.25 ± 11% -1.3 1.96 ± 3%
perf-profile.calltrace.cycles-pp.__do_sys_newfstatat.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.99 ± 11% -1.2 1.82 ± 6%
perf-profile.calltrace.cycles-pp.path_lookupat.filename_lookup.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.55 ± 11% -1.2 0.39 ± 57%
perf-profile.calltrace.cycles-pp.join_transaction.start_transaction.btrfs_dirty_inode.btrfs_setattr.notify_change
2.89 ± 10% -1.1 1.75 ± 3%
perf-profile.calltrace.cycles-pp.vfs_statx.__do_sys_newfstatat.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.46 ± 7% -1.1 1.33 ± 2%
perf-profile.calltrace.cycles-pp.__btrfs_release_delayed_node.btrfs_delayed_update_inode.btrfs_update_inode.btrfs_dirty_inode.btrfs_setattr
1.79 ± 11% -0.7 1.11 ± 6%
perf-profile.calltrace.cycles-pp.link_path_walk.path_lookupat.filename_lookup.do_faccessat.do_syscall_64
1.57 ± 11% -0.7 0.91 ± 3%
perf-profile.calltrace.cycles-pp.kmem_cache_alloc.prepare_creds.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.64 ± 9% -0.6 1.00 ± 4%
perf-profile.calltrace.cycles-pp.user_path_at_empty.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.60 ± 9% -0.6 0.98 ± 4%
perf-profile.calltrace.cycles-pp.getname_flags.user_path_at_empty.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.54 ± 8% -0.6 0.94 ± 3%
perf-profile.calltrace.cycles-pp.__kmalloc.security_prepare_creds.prepare_creds.do_faccessat.do_syscall_64
1.21 ± 10% -0.4 0.77 ± 5%
perf-profile.calltrace.cycles-pp.strncpy_from_user.getname_flags.user_path_at_empty.do_faccessat.do_syscall_64
1.00 ± 10% -0.4 0.63 ± 3%
perf-profile.calltrace.cycles-pp.filename_lookup.vfs_statx.__do_sys_newfstatat.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.95 ± 14% -0.4 0.58 ± 4%
perf-profile.calltrace.cycles-pp.kmem_cache_free.do_faccessat.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.95 ± 7% -0.3 0.61 ± 4%
perf-profile.calltrace.cycles-pp.kfree.security_cred_free.put_cred_rcu.do_faccessat.do_syscall_64
0.91 ± 10% -0.3 0.57 ± 3%
perf-profile.calltrace.cycles-pp.path_lookupat.filename_lookup.vfs_statx.__do_sys_newfstatat.do_syscall_64
0.00 +1.0 0.98 ± 4%
perf-profile.calltrace.cycles-pp._find_next_bit.cpumask_next.__percpu_counter_sum.__reserve_bytes.btrfs_reserve_metadata_bytes
0.00 +1.6 1.56 ± 4%
perf-profile.calltrace.cycles-pp.cpumask_next.__percpu_counter_sum.__reserve_bytes.btrfs_reserve_metadata_bytes.btrfs_block_rsv_add
0.00 +4.2 4.23 ± 4%
perf-profile.calltrace.cycles-pp.__percpu_counter_sum.__reserve_bytes.btrfs_reserve_metadata_bytes.btrfs_block_rsv_add.start_transaction
0.00 +12.6 12.55 ± 4%
perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.__reserve_bytes.btrfs_reserve_metadata_bytes.btrfs_block_rsv_add
0.00 +13.0 13.01 ± 4%
perf-profile.calltrace.cycles-pp._raw_spin_lock.__reserve_bytes.btrfs_reserve_metadata_bytes.btrfs_block_rsv_add.start_transaction
0.00 +15.3 15.29 ± 3%
perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.btrfs_block_rsv_release.btrfs_trans_release_metadata.__btrfs_end_transaction
0.00 +15.8 15.81 ± 3%
perf-profile.calltrace.cycles-pp._raw_spin_lock.btrfs_block_rsv_release.btrfs_trans_release_metadata.__btrfs_end_transaction.btrfs_dirty_inode
0.00 +16.0 16.04 ± 3%
perf-profile.calltrace.cycles-pp.btrfs_block_rsv_release.btrfs_trans_release_metadata.__btrfs_end_transaction.btrfs_dirty_inode.btrfs_setattr
0.00 +16.0 16.05 ± 3%
perf-profile.calltrace.cycles-pp.btrfs_trans_release_metadata.__btrfs_end_transaction.btrfs_dirty_inode.btrfs_setattr.notify_change
0.63 ± 10% +16.7 17.34 ± 3%
perf-profile.calltrace.cycles-pp.__btrfs_end_transaction.btrfs_dirty_inode.btrfs_setattr.notify_change.chmod_common
0.00 +18.3 18.27 ± 4%
perf-profile.calltrace.cycles-pp.__reserve_bytes.btrfs_reserve_metadata_bytes.btrfs_block_rsv_add.start_transaction.btrfs_dirty_inode
0.00 +18.4 18.39 ± 4%
perf-profile.calltrace.cycles-pp.btrfs_reserve_metadata_bytes.btrfs_block_rsv_add.start_transaction.btrfs_dirty_inode.btrfs_setattr
2.18 ± 12% +18.4 20.61 ± 4%
perf-profile.calltrace.cycles-pp.start_transaction.btrfs_dirty_inode.btrfs_setattr.notify_change.chmod_common
0.00 +18.9 18.88 ± 4%
perf-profile.calltrace.cycles-pp.btrfs_block_rsv_add.start_transaction.btrfs_dirty_inode.btrfs_setattr.notify_change
9.24 ± 10% +32.2 41.40 ± 3%
perf-profile.calltrace.cycles-pp.__x64_sys_fchmod.do_syscall_64.entry_SYSCALL_64_after_hwframe
9.16 ± 10% +32.2 41.36 ± 3%
perf-profile.calltrace.cycles-pp.chmod_common.__x64_sys_fchmod.do_syscall_64.entry_SYSCALL_64_after_hwframe
8.30 ± 9% +32.6 40.94 ± 3%
perf-profile.calltrace.cycles-pp.notify_change.chmod_common.__x64_sys_fchmod.do_syscall_64.entry_SYSCALL_64_after_hwframe
8.09 ± 10% +32.7 40.80 ± 3%
perf-profile.calltrace.cycles-pp.btrfs_setattr.notify_change.chmod_common.__x64_sys_fchmod.do_syscall_64
7.74 ± 9% +32.8 40.56 ± 4%
perf-profile.calltrace.cycles-pp.btrfs_dirty_inode.btrfs_setattr.notify_change.chmod_common.__x64_sys_fchmod
47.72 ± 11% -27.3 20.41 ± 3%
perf-profile.children.cycles-pp.do_faccessat
20.57 ± 11% -12.1 8.51 ± 3%
perf-profile.children.cycles-pp.prepare_creds
18.81 ± 11% -11.9 6.93 ± 3%
perf-profile.children.cycles-pp.put_cred_rcu
5.42 ± 12% -3.8 1.60 ± 3%
perf-profile.children.cycles-pp.free_uid
5.39 ± 12% -3.8 1.58 ± 3%
perf-profile.children.cycles-pp.refcount_dec_and_lock_irqsave
5.36 ± 12% -3.8 1.56 ± 3%
perf-profile.children.cycles-pp.refcount_dec_not_one
5.34 ± 11% -3.1 2.21 ± 3%
perf-profile.children.cycles-pp.key_put
5.18 ± 11% -2.4 2.75 ± 4%
perf-profile.children.cycles-pp.security_prepare_creds
4.77 ± 8% -2.3 2.50 ± 4%
perf-profile.children.cycles-pp.btrfs_update_inode
3.80 ± 7% -2.0 1.84 ± 4%
perf-profile.children.cycles-pp.btrfs_delayed_update_inode
3.54 ± 12% -1.8 1.74 ± 4%
perf-profile.children.cycles-pp.apparmor_cred_prepare
3.49 ± 9% -1.8 1.72 ± 6%
perf-profile.children.cycles-pp.security_cred_free
4.39 ± 11% -1.7 2.68 ± 5%
perf-profile.children.cycles-pp.filename_lookup
3.93 ± 11% -1.5 2.40 ± 5%
perf-profile.children.cycles-pp.path_lookupat
2.50 ± 9% -1.4 1.09 ± 9%
perf-profile.children.cycles-pp.apparmor_cred_free
3.26 ± 11% -1.3 1.96 ± 3%
perf-profile.children.cycles-pp.__do_sys_newfstatat
2.90 ± 10% -1.1 1.75 ± 3%
perf-profile.children.cycles-pp.vfs_statx
2.47 ± 7% -1.1 1.34 ± 3%
perf-profile.children.cycles-pp.__btrfs_release_delayed_node
1.55 ± 11% -1.1 0.49 ± 7%
perf-profile.children.cycles-pp.join_transaction
2.37 ± 11% -0.9 1.49 ± 6%
perf-profile.children.cycles-pp.link_path_walk
2.11 ± 10% -0.9 1.23 ± 4%
perf-profile.children.cycles-pp.kmem_cache_alloc
2.13 ± 9% -0.8 1.30 ± 4%
perf-profile.children.cycles-pp.user_path_at_empty
2.08 ± 9% -0.8 1.29 ± 4%
perf-profile.children.cycles-pp.getname_flags
1.17 ± 12% -0.7 0.50 ± 6%
perf-profile.children.cycles-pp.common_perm_cond
1.58 ± 14% -0.7 0.92 ± 7%
perf-profile.children.cycles-pp.inode_permission
1.10 ± 12% -0.6 0.46 ± 6%
perf-profile.children.cycles-pp.common_perm
1.58 ± 9% -0.6 0.97 ± 3%
perf-profile.children.cycles-pp.__kmalloc
1.56 ± 11% -0.6 0.99 ± 4%
perf-profile.children.cycles-pp.strncpy_from_user
1.29 ± 14% -0.5 0.79 ± 5%
perf-profile.children.cycles-pp.kmem_cache_free
1.10 ± 13% -0.5 0.62 ± 13%
perf-profile.children.cycles-pp.mutex_lock
0.59 ± 10% -0.4 0.14 ± 16%
perf-profile.children.cycles-pp.btrfs_get_or_create_delayed_node
0.57 ± 10% -0.4 0.14 ± 18%
perf-profile.children.cycles-pp.btrfs_get_delayed_node
0.83 ± 13% -0.4 0.46 ± 4%
perf-profile.children.cycles-pp.generic_permission
0.91 ± 10% -0.4 0.56 ± 6%
perf-profile.children.cycles-pp.walk_component
0.96 ± 7% -0.4 0.61 ± 4%
perf-profile.children.cycles-pp.kfree
0.60 ± 14% -0.3 0.26 ± 3%
perf-profile.children.cycles-pp.security_path_chmod
0.65 ± 10% -0.3 0.31 ± 7%
perf-profile.children.cycles-pp.vfs_getattr
0.64 ± 10% -0.3 0.30 ± 7%
perf-profile.children.cycles-pp.security_inode_getattr
0.77 ± 12% -0.3 0.46 ± 6%
perf-profile.children.cycles-pp.btrfs_update_root_times
0.69 ± 5% -0.3 0.39 ± 5%
perf-profile.children.cycles-pp.mutex_unlock
0.65 ± 12% -0.3 0.39 ± 9%
perf-profile.children.cycles-pp.syscall_return_via_sysret
0.70 ± 9% -0.3 0.44 ± 4%
perf-profile.children.cycles-pp.__check_object_size
0.62 ± 12% -0.3 0.37 ± 3%
perf-profile.children.cycles-pp.complete_walk
0.51 ± 12% -0.3 0.26 ± 5%
perf-profile.children.cycles-pp.get_obj_cgroup_from_current
0.46 ± 31% -0.2 0.22 ± 16%
perf-profile.children.cycles-pp.revert_creds
0.59 ± 12% -0.2 0.36 ± 3%
perf-profile.children.cycles-pp.unlazy_walk
0.48 ± 11% -0.2 0.28 ± 5%
perf-profile.children.cycles-pp.obj_cgroup_charge
0.58 ± 10% -0.2 0.38 ± 3%
perf-profile.children.cycles-pp.btrfs_getattr
0.52 ± 10% -0.2 0.33 ± 9%
perf-profile.children.cycles-pp.lookup_fast
0.47 ± 20% -0.2 0.29 ± 15%
perf-profile.children.cycles-pp.btrfs_permission
0.33 ± 12% -0.2 0.15 ± 8%
perf-profile.children.cycles-pp.capable_wrt_inode_uidgid
0.46 ± 12% -0.2 0.29
perf-profile.children.cycles-pp.__legitimize_path
0.32 ± 12% -0.2 0.14 ± 10%
perf-profile.children.cycles-pp.security_capable
0.31 ± 12% -0.2 0.13 ± 11%
perf-profile.children.cycles-pp.apparmor_capable
0.32 ± 12% -0.2 0.15 ± 8%
perf-profile.children.cycles-pp.ns_capable_common
0.45 ± 9% -0.2 0.28 ± 10%
perf-profile.children.cycles-pp.refill_obj_stock
0.28 ± 63% -0.2 0.12 ± 27%
perf-profile.children.cycles-pp.map_id_up
0.35 ± 28% -0.1 0.20 ± 10%
perf-profile.children.cycles-pp.cp_new_stat
0.42 ± 10% -0.1 0.28 ± 6%
perf-profile.children.cycles-pp.__mod_memcg_lruvec_state
0.36 ± 10% -0.1 0.23 ± 8%
perf-profile.children.cycles-pp.path_put
0.35 ± 10% -0.1 0.22 ± 11%
perf-profile.children.cycles-pp.dput
0.35 ± 9% -0.1 0.22 ± 9%
perf-profile.children.cycles-pp.__d_lookup_rcu
0.32 ± 10% -0.1 0.19 ± 12%
perf-profile.children.cycles-pp.path_init
0.36 ± 14% -0.1 0.24 ± 5%
perf-profile.children.cycles-pp.__entry_text_start
0.35 ± 11% -0.1 0.23 ± 9%
perf-profile.children.cycles-pp.___might_sleep
0.32 ± 9% -0.1 0.20 ± 4%
perf-profile.children.cycles-pp.__check_heap_object
0.27 ± 10% -0.1 0.16 ± 7%
perf-profile.children.cycles-pp.__list_add_valid
0.26 ± 7% -0.1 0.16 ± 11%
perf-profile.children.cycles-pp.__might_sleep
0.23 ± 15% -0.1 0.13 ± 5%
perf-profile.children.cycles-pp._cond_resched
0.19 ± 39% -0.1 0.09 ± 7%
perf-profile.children.cycles-pp.fill_stack_inode_item
0.23 ± 14% -0.1 0.14 ± 12%
perf-profile.children.cycles-pp.syscall_enter_from_user_mode
0.23 ± 14% -0.1 0.15 ± 7%
perf-profile.children.cycles-pp.__legitimize_mnt
0.18 ± 14% -0.1 0.10 ± 11%
perf-profile.children.cycles-pp.override_creds
0.17 ± 15% -0.1 0.10 ± 11%
perf-profile.children.cycles-pp.__list_del_entry_valid
0.18 ± 13% -0.1 0.10 ± 12%
perf-profile.children.cycles-pp.step_into
0.19 ± 14% -0.1 0.12 ± 12%
perf-profile.children.cycles-pp.lockref_get_not_dead
0.20 ± 10% -0.1 0.13 ± 12%
perf-profile.children.cycles-pp.__mod_memcg_state
0.19 ± 16% -0.1 0.12 ± 11%
perf-profile.children.cycles-pp.rcu_read_unlock_strict
0.15 ± 14% -0.1 0.09 ± 13%
perf-profile.children.cycles-pp.lockref_put_or_lock
0.17 ± 11% -0.1 0.12 ± 3%
perf-profile.children.cycles-pp.memset_erms
0.17 ± 17% -0.1 0.12 ± 7%
perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.16 ± 7% -0.1 0.11 ± 4%
perf-profile.children.cycles-pp._copy_to_user
0.10 ± 21% -0.1 0.04 ± 58%
perf-profile.children.cycles-pp.mnt_want_write
0.11 ± 9% -0.0 0.07 ± 13%
perf-profile.children.cycles-pp.inode_get_bytes
0.11 ± 18% -0.0 0.07 ± 13%
perf-profile.children.cycles-pp.rcu_all_qs
0.11 ± 16% -0.0 0.06 ± 11%
perf-profile.children.cycles-pp.security_inode_permission
0.10 -0.0 0.05 ± 8%
perf-profile.children.cycles-pp.__fget_light
0.11 ± 13% -0.0 0.07 ± 7%
perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
0.12 ± 12% -0.0 0.08 ± 8%
perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
0.10 ± 19% -0.0 0.07 ± 7%
perf-profile.children.cycles-pp.__put_cred
0.11 ± 14% -0.0 0.07 ± 14%
perf-profile.children.cycles-pp.btrfs_balance_delayed_items
0.09 ± 14% -0.0 0.06 ± 14%
perf-profile.children.cycles-pp.exit_to_user_mode_prepare
0.10 ± 14% -0.0 0.08 ± 6%
perf-profile.children.cycles-pp.__x86_indirect_thunk_rax
0.08 ± 10% -0.0 0.06 ± 15%
perf-profile.children.cycles-pp.mntput_no_expire
0.21 ± 6% +0.1 0.28 ± 12%
perf-profile.children.cycles-pp.btrfs_put_transaction
0.05 ± 61% +0.1 0.15 ± 9%
perf-profile.children.cycles-pp._raw_spin_unlock_irqrestore
0.00 +0.2 0.21 ± 10%
perf-profile.children.cycles-pp.find_next_bit
0.06 ± 17% +0.3 0.38 ± 4%
perf-profile.children.cycles-pp._raw_spin_lock_irqsave
0.00 +0.4 0.43 ± 14%
perf-profile.children.cycles-pp.btrfs_get_alloc_profile
0.00 +0.5 0.46 ± 14%
perf-profile.children.cycles-pp.calc_available_free_space
0.00 +0.5 0.48 ± 2%
perf-profile.children.cycles-pp.btrfs_block_rsv_add_bytes
0.00 +0.5 0.48 ± 8%
perf-profile.children.cycles-pp.wait_current_trans
0.00 +1.0 1.00 ± 4%
perf-profile.children.cycles-pp._find_next_bit
0.00 +1.8 1.77 ± 4%
perf-profile.children.cycles-pp.cpumask_next
0.00 +4.2 4.24 ± 4%
perf-profile.children.cycles-pp.__percpu_counter_sum
0.00 +16.0 16.04 ± 3%
perf-profile.children.cycles-pp.btrfs_block_rsv_release
0.00 +16.0 16.05 ± 3%
perf-profile.children.cycles-pp.btrfs_trans_release_metadata
0.64 ± 9% +16.7 17.35 ± 3%
perf-profile.children.cycles-pp.__btrfs_end_transaction
0.00 +18.3 18.27 ± 4%
perf-profile.children.cycles-pp.__reserve_bytes
0.00 +18.4 18.39 ± 4%
perf-profile.children.cycles-pp.btrfs_reserve_metadata_bytes
2.19 ± 12% +18.4 20.61 ± 4%
perf-profile.children.cycles-pp.start_transaction
0.00 +18.9 18.88 ± 4%
perf-profile.children.cycles-pp.btrfs_block_rsv_add
0.75 ± 8% +27.1 27.88 ± 3%
perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
2.32 ± 10% +28.3 30.66 ± 3%
perf-profile.children.cycles-pp._raw_spin_lock
9.25 ± 10% +32.2 41.41 ± 3%
perf-profile.children.cycles-pp.__x64_sys_fchmod
9.16 ± 10% +32.2 41.36 ± 3%
perf-profile.children.cycles-pp.chmod_common
8.31 ± 9% +32.6 40.95 ± 3%
perf-profile.children.cycles-pp.notify_change
8.10 ± 10% +32.7 40.80 ± 3%
perf-profile.children.cycles-pp.btrfs_setattr
7.75 ± 9% +32.8 40.56 ± 4%
perf-profile.children.cycles-pp.btrfs_dirty_inode
13.73 ± 11% -8.9 4.81 ± 4%
perf-profile.self.cycles-pp.prepare_creds
5.33 ± 12% -3.8 1.55 ± 3%
perf-profile.self.cycles-pp.refcount_dec_not_one
4.57 ± 11% -3.1 1.42 ± 4%
perf-profile.self.cycles-pp.put_cred_rcu
5.30 ± 11% -3.1 2.19 ± 3%
perf-profile.self.cycles-pp.key_put
3.53 ± 12% -1.8 1.73 ± 4%
perf-profile.self.cycles-pp.apparmor_cred_prepare
2.48 ± 9% -1.4 1.08 ± 9%
perf-profile.self.cycles-pp.apparmor_cred_free
1.10 ± 12% -0.6 0.45 ± 5%
perf-profile.self.cycles-pp.common_perm
1.04 ± 14% -0.5 0.58 ± 13%
perf-profile.self.cycles-pp.mutex_lock
0.57 ± 11% -0.4 0.13 ± 20%
perf-profile.self.cycles-pp.btrfs_get_delayed_node
1.06 ± 9% -0.4 0.63 ± 5%
perf-profile.self.cycles-pp.kmem_cache_alloc
1.02 ± 10% -0.4 0.64 ± 4%
perf-profile.self.cycles-pp.link_path_walk
0.93 ± 14% -0.4 0.55 ± 5%
perf-profile.self.cycles-pp.kmem_cache_free
0.79 ± 8% -0.3 0.48 ± 4%
perf-profile.self.cycles-pp.__kmalloc
0.69 ± 5% -0.3 0.39 ± 6%
perf-profile.self.cycles-pp.mutex_unlock
0.72 ± 11% -0.3 0.46 ± 5%
perf-profile.self.cycles-pp.strncpy_from_user
0.65 ± 12% -0.3 0.39 ± 9%
perf-profile.self.cycles-pp.syscall_return_via_sysret
0.46 ± 31% -0.2 0.22 ± 16%
perf-profile.self.cycles-pp.revert_creds
0.64 ± 9% -0.2 0.40 ± 3% perf-profile.self.cycles-pp.kfree
0.60 ± 9% -0.2 0.38 ± 7%
perf-profile.self.cycles-pp.join_transaction
0.41 ± 11% -0.2 0.22 ± 5%
perf-profile.self.cycles-pp.get_obj_cgroup_from_current
0.45 ± 10% -0.2 0.27 ± 5%
perf-profile.self.cycles-pp.obj_cgroup_charge
0.30 ± 13% -0.2 0.13 ± 11%
perf-profile.self.cycles-pp.apparmor_capable
0.44 ± 20% -0.2 0.28 ± 16%
perf-profile.self.cycles-pp.btrfs_permission
0.42 ± 11% -0.2 0.27 ± 8%
perf-profile.self.cycles-pp.generic_permission
0.42 ± 8% -0.2 0.27 ± 10%
perf-profile.self.cycles-pp.refill_obj_stock
0.47 ± 10% -0.2 0.32 ± 2%
perf-profile.self.cycles-pp.btrfs_getattr
0.27 ± 65% -0.2 0.12 ± 25%
perf-profile.self.cycles-pp.map_id_up
0.36 ± 14% -0.1 0.23 ± 4%
perf-profile.self.cycles-pp.__entry_text_start
0.34 ± 10% -0.1 0.22 ± 9%
perf-profile.self.cycles-pp.__d_lookup_rcu
0.38 ± 11% -0.1 0.25 ± 5%
perf-profile.self.cycles-pp.do_faccessat
0.32 ± 19% -0.1 0.20 ± 13%
perf-profile.self.cycles-pp.inode_permission
0.34 ± 13% -0.1 0.22 ± 9%
perf-profile.self.cycles-pp.___might_sleep
0.31 ± 9% -0.1 0.20 ± 4%
perf-profile.self.cycles-pp.__check_heap_object
0.27 ± 10% -0.1 0.16 ± 7%
perf-profile.self.cycles-pp.__list_add_valid
0.28 ± 11% -0.1 0.17 ± 11%
perf-profile.self.cycles-pp.path_init
0.25 ± 8% -0.1 0.15 ± 10%
perf-profile.self.cycles-pp.__might_sleep
0.26 ± 8% -0.1 0.16 ± 7%
perf-profile.self.cycles-pp.__check_object_size
0.23 ± 16% -0.1 0.13 ± 13%
perf-profile.self.cycles-pp.syscall_enter_from_user_mode
0.17 ± 16% -0.1 0.09 ± 7%
perf-profile.self.cycles-pp.override_creds
0.22 ± 15% -0.1 0.14 ± 8%
perf-profile.self.cycles-pp.__legitimize_mnt
0.20 ± 13% -0.1 0.12 ± 12%
perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
0.14 ± 18% -0.1 0.06
perf-profile.self.cycles-pp.btrfs_update_inode
0.21 ± 13% -0.1 0.13 ± 5%
perf-profile.self.cycles-pp.walk_component
0.17 ± 11% -0.1 0.10 ± 11%
perf-profile.self.cycles-pp.step_into
0.17 ± 17% -0.1 0.10 ± 11%
perf-profile.self.cycles-pp.__list_del_entry_valid
0.19 ± 14% -0.1 0.12 ± 12%
perf-profile.self.cycles-pp.lockref_get_not_dead
0.20 ± 10% -0.1 0.13 ± 12%
perf-profile.self.cycles-pp.__mod_memcg_state
0.16 ± 10% -0.1 0.10 ± 11%
perf-profile.self.cycles-pp.lookup_fast
0.15 ± 14% -0.1 0.08 ± 13%
perf-profile.self.cycles-pp.lockref_put_or_lock
0.20 ± 10% -0.1 0.14 ± 5%
perf-profile.self.cycles-pp.__mod_memcg_lruvec_state
0.15 ± 14% -0.1 0.08 ± 10%
perf-profile.self.cycles-pp.filename_lookup
0.17 ± 9% -0.1 0.11 ± 3%
perf-profile.self.cycles-pp.memset_erms
0.14 ± 12% -0.1 0.08 ± 5%
perf-profile.self.cycles-pp.getname_flags
0.07 ± 11% -0.0 0.03 ±100% perf-profile.self.cycles-pp.dput
0.11 ± 16% -0.0 0.06 ± 11%
perf-profile.self.cycles-pp.security_inode_permission
0.15 ± 15% -0.0 0.10 ± 14%
perf-profile.self.cycles-pp.rcu_read_unlock_strict
0.12 ± 12% -0.0 0.08 ± 10%
perf-profile.self.cycles-pp.copy_user_enhanced_fast_string
0.11 ± 11% -0.0 0.06 ± 13%
perf-profile.self.cycles-pp._cond_resched
0.11 ± 13% -0.0 0.07 ± 7%
perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
0.10 ± 5% -0.0 0.05 ± 8%
perf-profile.self.cycles-pp.__fget_light
0.10 ± 19% -0.0 0.07 ± 13%
perf-profile.self.cycles-pp.path_lookupat
0.11 ± 14% -0.0 0.07 ± 20%
perf-profile.self.cycles-pp.btrfs_balance_delayed_items
0.10 ± 14% -0.0 0.07 ± 10%
perf-profile.self.cycles-pp.__virt_addr_valid
0.10 ± 21% -0.0 0.06 ± 6%
perf-profile.self.cycles-pp.__put_cred
0.07 ± 11% -0.0 0.04 ± 60%
perf-profile.self.cycles-pp.exit_to_user_mode_prepare
0.09 ± 20% -0.0 0.06 ± 17%
perf-profile.self.cycles-pp.notify_change
0.07 ± 12% -0.0 0.05 ± 8%
perf-profile.self.cycles-pp.mntput_no_expire
0.21 ± 6% +0.1 0.28 ± 12%
perf-profile.self.cycles-pp.btrfs_put_transaction
0.05 ± 62% +0.1 0.13 ± 11%
perf-profile.self.cycles-pp._raw_spin_unlock_irqrestore
0.00 +0.1 0.12 ± 5%
perf-profile.self.cycles-pp.btrfs_reserve_metadata_bytes
0.00 +0.1 0.14 ± 13%
perf-profile.self.cycles-pp.btrfs_block_rsv_release
0.00 +0.2 0.16 ± 18%
perf-profile.self.cycles-pp.btrfs_get_alloc_profile
0.00 +0.2 0.18 ± 7%
perf-profile.self.cycles-pp.wait_current_trans
0.46 ± 15% +0.2 0.64 ± 6%
perf-profile.self.cycles-pp.start_transaction
0.00 +0.2 0.21 ± 10%
perf-profile.self.cycles-pp.find_next_bit
0.06 ± 20% +0.3 0.38 ± 4%
perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.00 +0.6 0.57 ± 14%
perf-profile.self.cycles-pp.__reserve_bytes
0.00 +0.6 0.57 ± 7%
perf-profile.self.cycles-pp.cpumask_next
0.36 ± 12% +0.6 0.98 ± 11%
perf-profile.self.cycles-pp.__btrfs_end_transaction
0.00 +1.0 0.99 ± 4%
perf-profile.self.cycles-pp._find_next_bit
1.57 ± 11% +1.2 2.77 ± 6%
perf-profile.self.cycles-pp._raw_spin_lock
0.00 +2.1 2.08 ± 4%
perf-profile.self.cycles-pp.__percpu_counter_sum
0.73 ± 8% +27.1 27.79 ± 3%
perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
stress-ng.access.ops
1.2e+06 +-----------------------------------------------------------------+
| +..+..+..+.. .+..+..+. .+.. .+..+..+..+..+..+..+ |
1e+06 |-+ : +. +. +. |
| : |
| : |
800000 |-+ : |
| : O O O O O O O O O O O O |
600000 |-+O :O O O O O O O O |
| : |
400000 |-+ : |
| : |
| : |
200000 |-+: |
| : |
0 +-----------------------------------------------------------------+
stress-ng.access.ops_per_sec
40000 +-------------------------------------------------------------------+
| +..+..+..+... .+..+..+. .+.. .+..+...+..+..+..+..+ |
35000 |-+ : +. +. +. |
30000 |-+ : |
| : |
25000 |-+ : |
| : O O O O O O O O O O O O |
20000 |-+O :O O O O O O O O |
| : |
15000 |-+ : |
10000 |-+ : |
| : |
5000 |-+: |
| : |
0 +-------------------------------------------------------------------+
stress-ng.chmod.ops
140000 +------------------------------------------------------------------+
| +.. |
120000 |-+ : +..+.. .+.. |
| : +.. .. +. +.. +.. +.. +.. |
100000 |-+ : + ..+.. .. .. .. +.. |
| : +. + + + +..+..+ |
80000 |-+ : |
| : |
60000 |-+ : O O O |
| O: O O O O O O O O O O O O O O O O O |
40000 |-+ : |
| : |
20000 |-+: |
| : |
0 +------------------------------------------------------------------+
stress-ng.chmod.ops_per_sec
4500 +--------------------------------------------------------------------+
| +.. +.. .+.. |
4000 |-+ : + +..+. +.. +.. |
3500 |-+ : +... + .+.. .+.. + |
| : + +...+..+. +. + +... .+..+ |
3000 |-+ : + +. |
2500 |-+ : |
| : |
2000 |-+ : O O O O O O O |
1500 |-+O: O O O O O O O O O O O O O |
| : |
1000 |-+ : |
500 |-+: |
| : |
0 +--------------------------------------------------------------------+
stress-ng.chown.ops
1.2e+06 +-----------------------------------------------------------------+
| +..+..+.. .+.. +.. |
1e+06 |-+ : +. +.. .+.. .. .+..+.. .+.. |
| : +. + +..+..+..+. +. .+ |
| : +. |
800000 |-+ : |
| : |
600000 |-+O :O O O O O O O O |
| : O O O O O O O O O O O O |
400000 |-+ : |
| : |
| : |
200000 |-+: |
| : |
0 +-----------------------------------------------------------------+
stress-ng.chown.ops_per_sec
40000 +-------------------------------------------------------------------+
| +..+..+.. ..+.. +.. |
35000 |-+ : +. +.. .+.. .. .+...+.. .+.. |
30000 |-+ : +. + +..+..+..+. +. .+ |
| : +. |
25000 |-+ : |
| : |
20000 |-+O :O O O O O O O O |
| : O O O O O O O O O O O O |
15000 |-+ : |
10000 |-+ : |
| : |
5000 |-+: |
| : |
0 +-------------------------------------------------------------------+
stress-ng.utime.ops
4.5e+06 +-----------------------------------------------------------------+
| .+..+.. .+.. .+.. .+.. |
4e+06 |-+ +..+. +. +. +. .+..+..+..+.. .+ |
3.5e+06 |-+ : +..+..+..+. +. |
| : |
3e+06 |-+ : |
2.5e+06 |-+ : |
| : |
2e+06 |-+ : |
1.5e+06 |-+ : |
| : O O O O O |
1e+06 |-+O: O O O O O O O O O O O O O O O |
500000 |-+ : |
| : |
0 +-----------------------------------------------------------------+
stress-ng.utime.ops_per_sec
160000 +------------------------------------------------------------------+
| .+.. +.. |
140000 |-+ .+. +.. .. .+.. ..+.. |
120000 |-+ +. + +. +. .+.. .+..+..+..+..+.. .+ |
| : +. +. +. |
100000 |-+ : |
| : |
80000 |-+ : |
| : |
60000 |-+ : |
40000 |-+ : |
| O: O O O O O O O O O O O O O O O O O O O O |
20000 |-+ : |
| : |
0 +------------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
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.
Thanks,
Oliver Sang
