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Message-ID: <20200619085108.GC5535@shao2-debian>
Date: Fri, 19 Jun 2020 16:51:08 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Mel Gorman <mgorman@...hsingularity.net>
Cc: Jan Kara <jack@...e.cz>, Amir Goldstein <amir73il@...il.com>,
Alexander Viro <viro@...iv.linux.org.uk>,
linux-fsdevel <linux-fsdevel@...r.kernel.org>,
linux-kernel <linux-kernel@...r.kernel.org>, lkp@...ts.01.org
Subject: [fs] 0587211dff: will-it-scale.per_thread_ops 4.7% improvement
Greeting,
FYI, we noticed a 4.7% improvement of will-it-scale.per_thread_ops due to commit:
commit: 0587211dff7d736ba1836ee2382c0d14a18eee8b ("[PATCH v2] fs: Do not check if there is a fsnotify watcher on pseudo inodes")
url: https://github.com/0day-ci/linux/commits/Mel-Gorman/fs-Do-not-check-if-there-is-a-fsnotify-watcher-on-pseudo-inodes/20200615-201557
base: https://git.kernel.org/cgit/linux/kernel/git/jack/linux-fs.git for_next
in testcase: will-it-scale
on test machine: 104 threads Skylake with 192G memory
with following parameters:
nr_task: 100%
mode: thread
test: unix1
cpufreq_governor: performance
ucode: 0x2000065
test-description: Will It Scale takes a testcase and runs it from 1 through to n parallel copies to see if the testcase will scale. It builds both a process and threads based test in order to see any differences between the two.
test-url: https://github.com/antonblanchard/will-it-scale
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
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase/ucode:
gcc-9/performance/x86_64-rhel-7.6/thread/100%/debian-x86_64-20191114.cgz/lkp-skl-fpga01/unix1/will-it-scale/0x2000065
commit:
a68f93d90f ("Pull writeback fixes from me.")
0587211dff ("fs: Do not check if there is a fsnotify watcher on pseudo inodes")
a68f93d90fbb3eac 0587211dff7d736ba1836ee2382
---------------- ---------------------------
%stddev %change %stddev
\ | \
353336 +4.7% 370075 will-it-scale.per_thread_ops
36747013 +4.7% 38487901 will-it-scale.workload
18609905 ± 18% +391.6% 91493452 ± 49% cpuidle.C6.time
287.33 ± 19% +237.4% 969.50 ± 88% interrupts.39:PCI-MSI.67633154-edge.eth0-TxRx-1
287.33 ± 19% +237.4% 969.50 ± 88% interrupts.CPU31.39:PCI-MSI.67633154-edge.eth0-TxRx-1
317.00 +18.6% 376.00 ± 17% interrupts.CPU32.RES:Rescheduling_interrupts
315.33 +27.9% 403.25 ± 8% interrupts.CPU93.RES:Rescheduling_interrupts
44802 ± 4% +9.3% 48949 ± 6% interrupts.RES:Rescheduling_interrupts
19852 ± 3% +12.7% 22383 ± 9% softirqs.CPU26.RCU
19479 ± 2% +14.7% 22352 ± 11% softirqs.CPU28.RCU
19358 ± 4% +20.2% 23260 ± 17% softirqs.CPU29.RCU
21107 ± 3% +20.1% 25345 ± 12% softirqs.CPU30.RCU
19896 ± 2% +14.2% 22727 ± 10% softirqs.CPU45.RCU
20389 ± 2% +13.5% 23141 ± 9% softirqs.CPU46.RCU
20482 ± 3% +12.9% 23120 ± 8% softirqs.CPU48.RCU
20236 ± 2% +14.4% 23145 ± 8% softirqs.CPU49.RCU
20639 ± 4% +11.9% 23090 ± 9% softirqs.CPU50.RCU
23600 ± 5% +14.4% 27000 ± 17% softirqs.CPU53.RCU
21597 ± 9% +11.4% 24065 ± 9% softirqs.CPU58.RCU
20526 ± 4% +20.5% 24730 ± 21% softirqs.CPU84.RCU
1705 ± 36% +2544.4% 45086 ±158% softirqs.NET_RX
209573 ± 2% +11.0% 232702 ± 3% sched_debug.cfs_rq:/.min_vruntime.stddev
1.04 ± 69% -80.6% 0.20 ±118% sched_debug.cfs_rq:/.removed.util_avg.avg
54.78 ± 43% -74.1% 14.21 ±126% sched_debug.cfs_rq:/.removed.util_avg.max
7.02 ± 51% -76.1% 1.68 ±122% sched_debug.cfs_rq:/.removed.util_avg.stddev
-268439 +45.6% -390861 sched_debug.cfs_rq:/.spread0.min
209456 ± 2% +11.0% 232570 ± 3% sched_debug.cfs_rq:/.spread0.stddev
568.94 ± 15% -43.3% 322.54 ± 46% sched_debug.cfs_rq:/.util_est_enqueued.min
60.15 ± 23% +99.1% 119.73 ± 26% sched_debug.cfs_rq:/.util_est_enqueued.stddev
1248676 ± 9% -16.1% 1047508 ± 4% sched_debug.cpu.avg_idle.max
367.73 ± 12% +13.5% 417.33 ± 7% sched_debug.cpu.curr->pid.stddev
0.00 ± 8% +14.3% 0.00 sched_debug.cpu.next_balance.stddev
57.06 ± 30% +114.5% 122.38 ± 52% sched_debug.cpu.nr_uninterruptible.max
11.05 ± 10% +45.1% 16.03 ± 28% sched_debug.cpu.nr_uninterruptible.stddev
507.76 ± 5% -10.6% 453.86 ± 8% sched_debug.cpu.ttwu_local.stddev
0.04 ± 2% +31.1% 0.05 ± 15% perf-stat.i.MPKI
1.73 +0.1 1.83 perf-stat.i.branch-miss-rate%
5.616e+08 +4.9% 5.892e+08 perf-stat.i.branch-misses
1.70 +3.0% 1.75 perf-stat.i.cpi
0.15 +0.0 0.17 perf-stat.i.dTLB-load-miss-rate%
73298848 +4.7% 76755803 perf-stat.i.dTLB-load-misses
4.755e+10 -3.1% 4.607e+10 perf-stat.i.dTLB-loads
3.059e+10 -5.3% 2.897e+10 perf-stat.i.dTLB-stores
73905481 +6.6% 78759329 perf-stat.i.iTLB-load-misses
1.638e+11 -2.9% 1.591e+11 perf-stat.i.instructions
2363 -11.5% 2091 perf-stat.i.instructions-per-iTLB-miss
0.59 -2.9% 0.57 perf-stat.i.ipc
1065 -3.0% 1033 perf-stat.i.metric.M/sec
84983 +3.7% 88116 perf-stat.i.node-load-misses
16159 +6.2% 17155 ± 2% perf-stat.i.node-store-misses
1.72 +0.1 1.81 perf-stat.overall.branch-miss-rate%
1.70 +3.0% 1.76 perf-stat.overall.cpi
0.15 +0.0 0.17 perf-stat.overall.dTLB-load-miss-rate%
0.00 +0.0 0.00 ± 2% perf-stat.overall.dTLB-store-miss-rate%
2216 -8.9% 2019 perf-stat.overall.instructions-per-iTLB-miss
0.59 -2.9% 0.57 perf-stat.overall.ipc
80.27 +0.8 81.05 perf-stat.overall.node-store-miss-rate%
1342269 -7.3% 1243635 perf-stat.overall.path-length
5.597e+08 +4.9% 5.872e+08 perf-stat.ps.branch-misses
73052936 +4.7% 76497456 perf-stat.ps.dTLB-load-misses
4.739e+10 -3.1% 4.591e+10 perf-stat.ps.dTLB-loads
3.048e+10 -5.3% 2.887e+10 perf-stat.ps.dTLB-stores
73695142 +6.6% 78525673 perf-stat.ps.iTLB-load-misses
1.633e+11 -2.9% 1.586e+11 perf-stat.ps.instructions
84674 +3.7% 87833 perf-stat.ps.node-load-misses
16096 +6.2% 17091 ± 2% perf-stat.ps.node-store-misses
4.932e+13 -3.0% 4.786e+13 perf-stat.total.instructions
29.95 -1.4 28.54 perf-profile.calltrace.cycles-pp.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.__GI___libc_read
27.96 -1.3 26.65 perf-profile.calltrace.cycles-pp.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.__GI___libc_read
37.88 -1.2 36.68 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__GI___libc_read
38.30 -1.2 37.11 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__GI___libc_read
49.26 -1.0 48.26 perf-profile.calltrace.cycles-pp.__GI___libc_read
5.97 -0.4 5.55 perf-profile.calltrace.cycles-pp.unix_stream_read_actor.unix_stream_read_generic.unix_stream_recvmsg.sock_read_iter.new_sync_read
1.30 -0.4 0.89 perf-profile.calltrace.cycles-pp.sock_def_readable.unix_stream_sendmsg.sock_sendmsg.sock_write_iter.new_sync_write
5.56 -0.4 5.17 perf-profile.calltrace.cycles-pp.skb_copy_datagram_iter.unix_stream_read_actor.unix_stream_read_generic.unix_stream_recvmsg.sock_read_iter
2.26 -0.4 1.88 perf-profile.calltrace.cycles-pp._copy_to_iter.__skb_datagram_iter.skb_copy_datagram_iter.unix_stream_read_actor.unix_stream_read_generic
5.29 -0.4 4.94 perf-profile.calltrace.cycles-pp.__skb_datagram_iter.skb_copy_datagram_iter.unix_stream_read_actor.unix_stream_read_generic.unix_stream_recvmsg
16.71 -0.3 16.38 perf-profile.calltrace.cycles-pp.unix_stream_read_generic.unix_stream_recvmsg.sock_read_iter.new_sync_read.vfs_read
1.17 ± 2% -0.3 0.84 perf-profile.calltrace.cycles-pp.kfree.consume_skb.unix_stream_read_generic.unix_stream_recvmsg.sock_read_iter
17.62 -0.3 17.36 perf-profile.calltrace.cycles-pp.unix_stream_recvmsg.sock_read_iter.new_sync_read.vfs_read.ksys_read
1.59 ± 3% -0.2 1.37 perf-profile.calltrace.cycles-pp.mutex_lock.unix_stream_read_generic.unix_stream_recvmsg.sock_read_iter.new_sync_read
1.18 ± 3% -0.2 1.01 ± 7% perf-profile.calltrace.cycles-pp.__fget_light.__fdget_pos.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.22 ± 3% -0.2 1.05 ± 7% perf-profile.calltrace.cycles-pp.__fdget_pos.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.__GI___libc_write
0.66 ± 3% -0.1 0.52 ± 2% perf-profile.calltrace.cycles-pp.__x64_sys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.__GI___libc_read
0.84 -0.1 0.75 ± 3% perf-profile.calltrace.cycles-pp.__check_heap_object.__check_object_size.simple_copy_to_iter.__skb_datagram_iter.skb_copy_datagram_iter
0.66 -0.1 0.58 perf-profile.calltrace.cycles-pp.kmem_cache_free.unix_stream_read_generic.unix_stream_recvmsg.sock_read_iter.new_sync_read
2.38 -0.1 2.32 perf-profile.calltrace.cycles-pp.__kmalloc_reserve.__alloc_skb.alloc_skb_with_frags.sock_alloc_send_pskb.unix_stream_sendmsg
0.52 +0.0 0.56 perf-profile.calltrace.cycles-pp.skb_unlink.unix_stream_read_generic.unix_stream_recvmsg.sock_read_iter.new_sync_read
0.85 +0.0 0.89 perf-profile.calltrace.cycles-pp.copyin._copy_from_iter.skb_copy_datagram_from_iter.unix_stream_sendmsg.sock_sendmsg
0.59 +0.0 0.64 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_unlock_irqrestore.unix_stream_sendmsg.sock_sendmsg.sock_write_iter.new_sync_write
0.61 ± 2% +0.0 0.66 perf-profile.calltrace.cycles-pp.__check_heap_object.__check_object_size.skb_copy_datagram_from_iter.unix_stream_sendmsg.sock_sendmsg
1.23 +0.1 1.31 perf-profile.calltrace.cycles-pp.aa_sk_perm.security_socket_sendmsg.sock_sendmsg.sock_write_iter.new_sync_write
1.82 +0.1 1.91 perf-profile.calltrace.cycles-pp._copy_from_iter.skb_copy_datagram_from_iter.unix_stream_sendmsg.sock_sendmsg.sock_write_iter
1.77 +0.1 1.86 perf-profile.calltrace.cycles-pp.__check_object_size.skb_copy_datagram_from_iter.unix_stream_sendmsg.sock_sendmsg.sock_write_iter
0.61 ± 2% +0.1 0.71 ± 2% perf-profile.calltrace.cycles-pp.apparmor_socket_recvmsg.security_socket_recvmsg.sock_recvmsg.sock_read_iter.new_sync_read
0.54 ± 3% +0.1 0.65 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.skb_queue_tail.unix_stream_sendmsg.sock_sendmsg.sock_write_iter
0.64 +0.1 0.76 perf-profile.calltrace.cycles-pp.skb_queue_tail.unix_stream_sendmsg.sock_sendmsg.sock_write_iter.new_sync_write
0.67 ± 5% +0.1 0.81 ± 3% perf-profile.calltrace.cycles-pp.__virt_addr_valid.__check_object_size.simple_copy_to_iter.__skb_datagram_iter.skb_copy_datagram_iter
5.36 +0.1 5.50 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.__GI___libc_read
4.57 +0.2 4.73 perf-profile.calltrace.cycles-pp.consume_skb.unix_stream_read_generic.unix_stream_recvmsg.sock_read_iter.new_sync_read
2.04 +0.2 2.21 perf-profile.calltrace.cycles-pp.security_socket_sendmsg.sock_sendmsg.sock_write_iter.new_sync_write.vfs_write
0.79 +0.2 0.96 perf-profile.calltrace.cycles-pp.wait_for_unix_gc.unix_stream_sendmsg.sock_sendmsg.sock_write_iter.new_sync_write
1.32 ± 2% +0.2 1.50 perf-profile.calltrace.cycles-pp.aa_sk_perm.security_socket_recvmsg.sock_recvmsg.sock_read_iter.new_sync_read
0.85 +0.2 1.03 ± 2% perf-profile.calltrace.cycles-pp.unix_write_space.sock_wfree.unix_destruct_scm.skb_release_head_state.skb_release_all
2.35 +0.2 2.53 ± 3% perf-profile.calltrace.cycles-pp.security_file_permission.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
4.38 +0.2 4.56 perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.__GI___libc_read
0.37 ± 70% +0.2 0.58 ± 3% perf-profile.calltrace.cycles-pp.__virt_addr_valid.__check_object_size.skb_copy_datagram_from_iter.unix_stream_sendmsg.sock_sendmsg
3.95 +0.2 4.18 perf-profile.calltrace.cycles-pp.skb_copy_datagram_from_iter.unix_stream_sendmsg.sock_sendmsg.sock_write_iter.new_sync_write
0.78 ± 3% +0.2 1.03 ± 2% perf-profile.calltrace.cycles-pp.security_socket_getpeersec_dgram.unix_stream_sendmsg.sock_sendmsg.sock_write_iter.new_sync_write
0.35 ± 70% +0.2 0.60 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_lock.unix_stream_read_generic.unix_stream_recvmsg.sock_read_iter.new_sync_read
6.55 +0.3 6.82 perf-profile.calltrace.cycles-pp.__alloc_skb.alloc_skb_with_frags.sock_alloc_send_pskb.unix_stream_sendmsg.sock_sendmsg
21.84 +0.3 22.12 perf-profile.calltrace.cycles-pp.sock_read_iter.new_sync_read.vfs_read.ksys_read.do_syscall_64
5.36 +0.3 5.67 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.__GI___libc_write
1.80 +0.4 2.19 perf-profile.calltrace.cycles-pp.sock_wfree.unix_destruct_scm.skb_release_head_state.skb_release_all.consume_skb
2.28 ± 2% +0.4 2.68 perf-profile.calltrace.cycles-pp.security_socket_recvmsg.sock_recvmsg.sock_read_iter.new_sync_read.vfs_read
2.44 ± 2% +0.4 2.84 perf-profile.calltrace.cycles-pp.sock_recvmsg.sock_read_iter.new_sync_read.vfs_read.ksys_read
0.17 ±141% +0.4 0.57 ± 3% perf-profile.calltrace.cycles-pp.apparmor_socket_sendmsg.security_socket_sendmsg.sock_sendmsg.sock_write_iter.new_sync_write
30.83 +0.4 31.24 perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.__GI___libc_write
23.01 +0.4 23.42 perf-profile.calltrace.cycles-pp.new_sync_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.84 +0.4 2.26 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_node.__alloc_skb.alloc_skb_with_frags.sock_alloc_send_pskb.unix_stream_sendmsg
2.43 +0.5 2.90 perf-profile.calltrace.cycles-pp.unix_destruct_scm.skb_release_head_state.skb_release_all.consume_skb.unix_stream_read_generic
2.64 +0.5 3.12 perf-profile.calltrace.cycles-pp.skb_release_head_state.skb_release_all.consume_skb.unix_stream_read_generic.unix_stream_recvmsg
2.70 +0.5 3.19 perf-profile.calltrace.cycles-pp.skb_release_all.consume_skb.unix_stream_read_generic.unix_stream_recvmsg.sock_read_iter
19.25 +0.5 19.74 perf-profile.calltrace.cycles-pp.unix_stream_sendmsg.sock_sendmsg.sock_write_iter.new_sync_write.vfs_write
0.00 +0.5 0.53 perf-profile.calltrace.cycles-pp._raw_spin_unlock_irqrestore.unix_stream_read_generic.unix_stream_recvmsg.sock_read_iter.new_sync_read
0.00 +0.5 0.54 ± 2% perf-profile.calltrace.cycles-pp.apparmor_socket_getpeersec_dgram.security_socket_getpeersec_dgram.unix_stream_sendmsg.sock_sendmsg.sock_write_iter
0.00 +0.5 0.54 ± 3% perf-profile.calltrace.cycles-pp.__might_sleep.kmem_cache_alloc_node.__alloc_skb.alloc_skb_with_frags.sock_alloc_send_pskb
0.00 +0.6 0.55 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_lock.unix_stream_sendmsg.sock_sendmsg.sock_write_iter.new_sync_write
21.76 +0.6 22.37 perf-profile.calltrace.cycles-pp.sock_sendmsg.sock_write_iter.new_sync_write.vfs_write.ksys_write
23.70 +0.7 24.39 perf-profile.calltrace.cycles-pp.sock_write_iter.new_sync_write.vfs_write.ksys_write.do_syscall_64
38.73 +0.7 39.41 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__GI___libc_write
28.58 +0.7 29.29 perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.__GI___libc_write
39.16 +0.7 39.87 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__GI___libc_write
1.02 ± 3% +0.7 1.76 ± 4% perf-profile.calltrace.cycles-pp.common_file_perm.security_file_permission.vfs_write.ksys_write.do_syscall_64
0.99 +0.8 1.77 perf-profile.calltrace.cycles-pp.common_file_perm.security_file_permission.vfs_read.ksys_read.do_syscall_64
1.67 +0.8 2.52 ± 5% perf-profile.calltrace.cycles-pp.security_file_permission.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
24.85 +0.8 25.70 perf-profile.calltrace.cycles-pp.new_sync_write.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
50.16 +1.0 51.21 perf-profile.calltrace.cycles-pp.__GI___libc_write
29.99 -1.4 28.58 perf-profile.children.cycles-pp.ksys_read
28.08 -1.4 26.73 perf-profile.children.cycles-pp.vfs_read
49.29 -1.0 48.29 perf-profile.children.cycles-pp.__GI___libc_read
76.70 -0.5 76.19 perf-profile.children.cycles-pp.do_syscall_64
77.53 -0.5 77.06 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
6.00 -0.4 5.59 perf-profile.children.cycles-pp.unix_stream_read_actor
1.30 -0.4 0.89 perf-profile.children.cycles-pp.sock_def_readable
5.61 -0.4 5.22 perf-profile.children.cycles-pp.skb_copy_datagram_iter
2.30 -0.4 1.93 perf-profile.children.cycles-pp._copy_to_iter
5.32 -0.4 4.97 perf-profile.children.cycles-pp.__skb_datagram_iter
16.84 -0.3 16.51 perf-profile.children.cycles-pp.unix_stream_read_generic
1.17 ± 2% -0.3 0.84 perf-profile.children.cycles-pp.kfree
17.64 -0.3 17.38 perf-profile.children.cycles-pp.unix_stream_recvmsg
1.23 -0.2 1.00 perf-profile.children.cycles-pp.__might_fault
1.64 ± 4% -0.2 1.43 perf-profile.children.cycles-pp.mutex_lock
0.63 ± 2% -0.2 0.47 ± 2% perf-profile.children.cycles-pp.skb_set_owner_w
0.60 ± 3% -0.1 0.45 perf-profile.children.cycles-pp.__x64_sys_write
0.67 ± 3% -0.1 0.53 ± 2% perf-profile.children.cycles-pp.__x64_sys_read
0.68 ± 2% -0.1 0.60 perf-profile.children.cycles-pp.kmem_cache_free
2.43 -0.1 2.37 perf-profile.children.cycles-pp.__kmalloc_reserve
0.42 ± 2% -0.1 0.36 perf-profile.children.cycles-pp.mutex_unlock
1.49 -0.1 1.44 perf-profile.children.cycles-pp.__check_heap_object
0.36 ± 4% -0.1 0.31 ± 4% perf-profile.children.cycles-pp.iov_iter_init
0.25 ± 4% -0.0 0.21 ± 7% perf-profile.children.cycles-pp.__vfs_write
0.09 ± 5% -0.0 0.06 perf-profile.children.cycles-pp.ksize
0.10 ± 9% -0.0 0.07 perf-profile.children.cycles-pp.kfree_skbmem
0.21 ± 2% -0.0 0.19 ± 2% perf-profile.children.cycles-pp.unix_scm_to_skb
0.17 ± 2% +0.0 0.19 ± 4% perf-profile.children.cycles-pp.kmalloc_slab
0.09 +0.0 0.11 ± 3% perf-profile.children.cycles-pp.maybe_add_creds
0.53 +0.0 0.56 perf-profile.children.cycles-pp.skb_unlink
0.65 ± 2% +0.0 0.68 perf-profile.children.cycles-pp.fput_many
0.14 ± 3% +0.0 0.18 ± 2% perf-profile.children.cycles-pp.fput
0.35 ± 2% +0.0 0.39 ± 2% perf-profile.children.cycles-pp.check_stack_object
1.12 +0.0 1.16 perf-profile.children.cycles-pp._cond_resched
0.87 +0.0 0.91 perf-profile.children.cycles-pp.copyin
0.57 +0.1 0.62 perf-profile.children.cycles-pp.rcu_all_qs
1.16 +0.1 1.22 perf-profile.children.cycles-pp._raw_spin_unlock_irqrestore
0.49 ± 2% +0.1 0.58 ± 2% perf-profile.children.cycles-pp.apparmor_socket_sendmsg
1.85 +0.1 1.95 perf-profile.children.cycles-pp._copy_from_iter
0.61 ± 2% +0.1 0.71 ± 2% perf-profile.children.cycles-pp.apparmor_socket_recvmsg
0.64 +0.1 0.77 perf-profile.children.cycles-pp.skb_queue_tail
1.11 +0.1 1.26 perf-profile.children.cycles-pp._raw_spin_lock_irqsave
0.47 ± 3% +0.2 0.62 ± 3% perf-profile.children.cycles-pp.apparmor_socket_getpeersec_dgram
0.74 +0.2 0.90 ± 2% perf-profile.children.cycles-pp.apparmor_file_permission
4.58 +0.2 4.74 perf-profile.children.cycles-pp.consume_skb
2.07 +0.2 2.23 perf-profile.children.cycles-pp.security_socket_sendmsg
0.32 ± 5% +0.2 0.50 ± 5% perf-profile.children.cycles-pp.aa_file_perm
0.84 +0.2 1.01 perf-profile.children.cycles-pp.wait_for_unix_gc
0.85 +0.2 1.03 ± 2% perf-profile.children.cycles-pp.unix_write_space
1.21 ± 5% +0.2 1.39 ± 3% perf-profile.children.cycles-pp.__virt_addr_valid
0.99 ± 2% +0.2 1.20 perf-profile.children.cycles-pp._raw_spin_lock
10.17 +0.2 10.39 perf-profile.children.cycles-pp.syscall_return_via_sysret
3.99 +0.2 4.21 perf-profile.children.cycles-pp.skb_copy_datagram_from_iter
0.81 ± 2% +0.3 1.06 ± 2% perf-profile.children.cycles-pp.security_socket_getpeersec_dgram
2.61 +0.3 2.87 perf-profile.children.cycles-pp.aa_sk_perm
6.63 +0.3 6.90 perf-profile.children.cycles-pp.__alloc_skb
21.86 +0.3 22.14 perf-profile.children.cycles-pp.sock_read_iter
2.30 ± 2% +0.4 2.69 perf-profile.children.cycles-pp.security_socket_recvmsg
1.80 +0.4 2.21 perf-profile.children.cycles-pp.sock_wfree
2.48 ± 2% +0.4 2.89 perf-profile.children.cycles-pp.sock_recvmsg
9.63 +0.4 10.04 perf-profile.children.cycles-pp.entry_SYSCALL_64
23.06 +0.4 23.47 perf-profile.children.cycles-pp.new_sync_read
1.93 +0.4 2.35 perf-profile.children.cycles-pp.kmem_cache_alloc_node
30.91 +0.4 31.34 perf-profile.children.cycles-pp.ksys_write
2.51 +0.4 2.96 perf-profile.children.cycles-pp.unix_destruct_scm
2.67 +0.5 3.14 perf-profile.children.cycles-pp.skb_release_head_state
2.72 +0.5 3.21 perf-profile.children.cycles-pp.skb_release_all
19.41 +0.5 19.90 perf-profile.children.cycles-pp.unix_stream_sendmsg
21.82 +0.6 22.43 perf-profile.children.cycles-pp.sock_sendmsg
28.71 +0.7 29.38 perf-profile.children.cycles-pp.vfs_write
23.73 +0.7 24.42 perf-profile.children.cycles-pp.sock_write_iter
24.90 +0.8 25.75 perf-profile.children.cycles-pp.new_sync_write
4.10 +1.0 5.09 ± 4% perf-profile.children.cycles-pp.security_file_permission
50.23 +1.0 51.26 perf-profile.children.cycles-pp.__GI___libc_write
2.06 ± 2% +1.5 3.58 ± 2% perf-profile.children.cycles-pp.common_file_perm
1.27 -0.4 0.86 perf-profile.self.cycles-pp.sock_def_readable
1.15 ± 2% -0.3 0.83 perf-profile.self.cycles-pp.kfree
0.78 -0.3 0.48 ± 2% perf-profile.self.cycles-pp.vfs_read
0.83 ± 5% -0.2 0.60 ± 17% perf-profile.self.cycles-pp.security_file_permission
0.56 ± 2% -0.2 0.35 perf-profile.self.cycles-pp.alloc_skb_with_frags
1.07 -0.2 0.87 perf-profile.self.cycles-pp.vfs_write
0.56 ± 5% -0.2 0.37 ± 16% perf-profile.self.cycles-pp.__fget_light
1.04 -0.2 0.89 perf-profile.self.cycles-pp.__GI___libc_read
0.61 ± 2% -0.2 0.46 perf-profile.self.cycles-pp.skb_set_owner_w
0.56 ± 3% -0.1 0.42 perf-profile.self.cycles-pp.__x64_sys_write
0.63 ± 3% -0.1 0.49 ± 2% perf-profile.self.cycles-pp.__x64_sys_read
0.72 -0.1 0.60 ± 2% perf-profile.self.cycles-pp._copy_to_iter
0.35 -0.1 0.25 ± 4% perf-profile.self.cycles-pp.__might_fault
0.53 -0.1 0.45 perf-profile.self.cycles-pp.ksys_write
1.34 -0.1 1.27 perf-profile.self.cycles-pp.__alloc_skb
1.46 -0.1 1.40 perf-profile.self.cycles-pp.__check_heap_object
0.65 -0.1 0.59 perf-profile.self.cycles-pp.kmem_cache_free
0.40 ± 2% -0.1 0.34 perf-profile.self.cycles-pp.mutex_unlock
0.20 ± 6% -0.0 0.16 ± 7% perf-profile.self.cycles-pp.__vfs_write
0.33 -0.0 0.29 perf-profile.self.cycles-pp.__kmalloc_reserve
0.10 ± 9% -0.0 0.07 perf-profile.self.cycles-pp.kfree_skbmem
0.56 ± 2% -0.0 0.54 perf-profile.self.cycles-pp._cond_resched
0.39 -0.0 0.36 ± 3% perf-profile.self.cycles-pp.unix_stream_read_actor
0.28 -0.0 0.26 ± 3% perf-profile.self.cycles-pp.skb_copy_datagram_iter
0.23 ± 3% -0.0 0.21 ± 2% perf-profile.self.cycles-pp.sock_sendmsg
0.20 ± 2% -0.0 0.18 perf-profile.self.cycles-pp.unix_scm_to_skb
0.11 -0.0 0.10 perf-profile.self.cycles-pp.put_pid
0.09 +0.0 0.10 perf-profile.self.cycles-pp.skb_unlink
0.07 ± 7% +0.0 0.08 perf-profile.self.cycles-pp.should_failslab
0.08 +0.0 0.10 ± 4% perf-profile.self.cycles-pp.maybe_add_creds
0.68 +0.0 0.69 perf-profile.self.cycles-pp.unix_destruct_scm
0.07 ± 7% +0.0 0.09 ± 5% perf-profile.self.cycles-pp.fput
0.18 ± 2% +0.0 0.20 ± 2% perf-profile.self.cycles-pp.security_socket_sendmsg
0.10 ± 4% +0.0 0.12 ± 4% perf-profile.self.cycles-pp.skb_release_head_state
0.15 ± 3% +0.0 0.17 ± 2% perf-profile.self.cycles-pp.kmalloc_slab
0.31 +0.0 0.34 perf-profile.self.cycles-pp.check_stack_object
0.63 +0.0 0.66 perf-profile.self.cycles-pp.fput_many
0.15 ± 3% +0.0 0.18 ± 2% perf-profile.self.cycles-pp.wait_for_unix_gc
0.51 +0.0 0.54 ± 2% perf-profile.self.cycles-pp._copy_from_iter
0.83 +0.0 0.88 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
0.46 +0.1 0.52 ± 2% perf-profile.self.cycles-pp.rcu_all_qs
1.15 +0.1 1.21 perf-profile.self.cycles-pp._raw_spin_unlock_irqrestore
0.73 ± 2% +0.1 0.79 ± 2% perf-profile.self.cycles-pp.unix_stream_recvmsg
0.20 ± 2% +0.1 0.26 ± 2% perf-profile.self.cycles-pp.security_socket_recvmsg
0.53 ± 2% +0.1 0.62 ± 2% perf-profile.self.cycles-pp.apparmor_socket_recvmsg
0.41 +0.1 0.49 ± 3% perf-profile.self.cycles-pp.apparmor_socket_sendmsg
0.23 ± 3% +0.1 0.34 ± 3% perf-profile.self.cycles-pp.security_socket_getpeersec_dgram
0.56 ± 2% +0.1 0.68 perf-profile.self.cycles-pp.mutex_lock
1.88 +0.1 2.00 perf-profile.self.cycles-pp.unix_stream_read_generic
1.97 +0.1 2.09 perf-profile.self.cycles-pp.unix_stream_sendmsg
0.40 ± 3% +0.1 0.53 ± 2% perf-profile.self.cycles-pp.apparmor_socket_getpeersec_dgram
1.55 +0.1 1.68 ± 2% perf-profile.self.cycles-pp.sock_read_iter
1.04 +0.1 1.17 perf-profile.self.cycles-pp.kmem_cache_alloc_node
1.10 +0.1 1.25 perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.90 +0.1 1.05 perf-profile.self.cycles-pp.new_sync_read
1.47 +0.2 1.62 perf-profile.self.cycles-pp.aa_sk_perm
0.87 ± 2% +0.2 1.03 ± 3% perf-profile.self.cycles-pp.new_sync_write
0.65 +0.2 0.81 ± 2% perf-profile.self.cycles-pp.apparmor_file_permission
0.30 ± 5% +0.2 0.46 ± 5% perf-profile.self.cycles-pp.aa_file_perm
1.16 ± 5% +0.2 1.34 ± 3% perf-profile.self.cycles-pp.__virt_addr_valid
0.80 +0.2 0.98 perf-profile.self.cycles-pp.unix_write_space
0.96 ± 2% +0.2 1.16 perf-profile.self.cycles-pp._raw_spin_lock
10.16 +0.2 10.37 perf-profile.self.cycles-pp.syscall_return_via_sysret
0.85 +0.3 1.11 ± 2% perf-profile.self.cycles-pp.sock_wfree
8.51 +0.4 8.88 perf-profile.self.cycles-pp.entry_SYSCALL_64
14.13 +0.7 14.86 perf-profile.self.cycles-pp.do_syscall_64
1.72 ± 3% +1.3 3.04 ± 4% perf-profile.self.cycles-pp.common_file_perm
will-it-scale.per_thread_ops
400000 +------------------------------------------------------------------+
| O O O OO O O O O O O O O O O OO O O O O O O.+.+. |
350000 |.+.+.+.+.++.+.+.+.+.+.+.+.+.+.+.++.+.+.+.+.+.+ +.+.++.+.+.+.+.|
| |
300000 |-+ |
250000 |-+ |
| |
200000 |-+ |
| |
150000 |-+ |
100000 |-+ |
| |
50000 |-+ |
| |
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,
Rong Chen
View attachment "config-5.7.0-13362-g0587211dff7d7" of type "text/plain" (206202 bytes)
View attachment "job-script" of type "text/plain" (7410 bytes)
View attachment "job.yaml" of type "text/plain" (5047 bytes)
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