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Message-ID: <20210407063322.GB22260@xsang-OptiPlex-9020>
Date: Wed, 7 Apr 2021 14:33:22 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Jens Axboe <axboe@...nel.dk>
Cc: LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
lkp@...el.com, ying.huang@...el.com, feng.tang@...el.com,
zhengjun.xing@...el.com
Subject: [io_uring] 860d1bed91: stress-ng.msg.ops_per_sec 34.9% improvement
Greeting,
FYI, we noticed a 34.9% improvement of stress-ng.msg.ops_per_sec due to commit:
commit: 860d1bed91e88a3bbedb0a3a433a139e528514de ("io_uring: include cflags in completion trace event")
https://git.kernel.org/cgit/linux/kernel/git/axboe/linux-block.git for-5.13/io_uring
in testcase: stress-ng
on test machine: 96 threads Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 192G memory
with following parameters:
nr_threads: 10%
disk: 1HDD
testtime: 60s
fs: ext4
class: os
test: msg
cpufreq_governor: performance
ucode: 0x5003006
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 split-job --compatible job.yaml
bin/lkp run compatible-job.yaml
=========================================================================================
class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime/ucode:
os/gcc-9/performance/1HDD/ext4/x86_64-rhel-8.3/10%/debian-10.4-x86_64-20200603.cgz/lkp-csl-2sp5/msg/stress-ng/60s/0x5003006
commit:
502f5faf89 ("io_uring: allocate memory for overflowed CQEs")
860d1bed91 ("io_uring: include cflags in completion trace event")
502f5faf89755be0 860d1bed91e88a3bbedb0a3a433
---------------- ---------------------------
%stddev %change %stddev
\ | \
2.281e+08 ± 2% +34.9% 3.078e+08 ± 5% stress-ng.msg.ops
3801919 ± 2% +34.9% 5129248 ± 5% stress-ng.msg.ops_per_sec
1701 ± 22% +36.5% 2322 ± 4% stress-ng.time.involuntary_context_switches
1614 +3.7% 1674 stress-ng.time.percent_of_cpu_this_job_got
984.43 +3.4% 1017 stress-ng.time.system_time
17.69 +22.4% 21.66 ± 5% stress-ng.time.user_time
24858803 ± 19% -90.9% 2269922 ± 74% stress-ng.time.voluntary_context_switches
0.31 +0.1 0.38 ± 4% mpstat.cpu.all.usr%
30195221 ± 23% -89.6% 3129791 ± 64% cpuidle.POLL.time
20499969 ± 22% -90.0% 2058412 ± 76% cpuidle.POLL.usage
83.25 -1.0% 82.45 iostat.cpu.idle
16.40 +4.5% 17.14 iostat.cpu.system
143262 ± 27% +106.6% 295999 ± 27% numa-numastat.node1.local_node
173213 ± 18% +84.6% 319734 ± 21% numa-numastat.node1.numa_hit
7460 ± 22% +30.7% 9754 ± 7% softirqs.CPU87.SCHED
13304 ± 20% -38.9% 8130 ± 29% softirqs.CPU90.SCHED
83.00 -1.2% 82.00 vmstat.cpu.id
765295 ± 20% -90.6% 71667 ± 72% vmstat.system.cs
234196 ± 2% -16.0% 196798 vmstat.system.in
13611 ± 11% +19.5% 16266 ± 9% slabinfo.kmalloc-512.active_objs
13735 ± 11% +19.3% 16391 ± 9% slabinfo.kmalloc-512.num_objs
58739 ± 7% +28.2% 75322 ± 9% slabinfo.kmalloc-64.active_objs
919.83 ± 7% +28.1% 1178 ± 9% slabinfo.kmalloc-64.active_slabs
58894 ± 7% +28.1% 75426 ± 9% slabinfo.kmalloc-64.num_objs
919.83 ± 7% +28.1% 1178 ± 9% slabinfo.kmalloc-64.num_slabs
2625583 ± 16% -90.6% 246762 ± 36% interrupts.CAL:Function_call_interrupts
54.00 ±133% -89.2% 5.83 ± 78% interrupts.CPU11.RES:Rescheduling_interrupts
23209 ± 91% -94.9% 1185 ±130% interrupts.CPU17.CAL:Function_call_interrupts
37330 ±129% -97.5% 931.67 ± 68% interrupts.CPU24.CAL:Function_call_interrupts
30468 ±128% -95.9% 1238 ± 75% interrupts.CPU36.CAL:Function_call_interrupts
202.00 ±180% -95.3% 9.50 ±109% interrupts.CPU42.RES:Rescheduling_interrupts
94.00 ± 36% +3739.4% 3609 ± 79% interrupts.CPU54.NMI:Non-maskable_interrupts
94.00 ± 36% +3739.4% 3609 ± 79% interrupts.CPU54.PMI:Performance_monitoring_interrupts
131.33 ± 21% +3245.1% 4393 ± 58% interrupts.CPU6.NMI:Non-maskable_interrupts
131.33 ± 21% +3245.1% 4393 ± 58% interrupts.CPU6.PMI:Performance_monitoring_interrupts
54748 ± 94% -98.9% 591.83 ± 20% interrupts.CPU93.CAL:Function_call_interrupts
13380 ± 14% -89.5% 1411 ± 24% interrupts.RES:Rescheduling_interrupts
3.549e+09 ± 2% +12.7% 3.998e+09 ± 5% perf-stat.i.branch-instructions
0.78 ± 4% -0.1 0.67 ± 4% perf-stat.i.branch-miss-rate%
26570992 ± 5% -9.0% 24189475 ± 4% perf-stat.i.branch-misses
791368 ± 19% -90.7% 73771 ± 72% perf-stat.i.context-switches
2.91 ± 2% -11.6% 2.57 ± 5% perf-stat.i.cpi
2.428e+09 ± 2% +8.7% 2.641e+09 ± 5% perf-stat.i.dTLB-stores
85.64 -3.4 82.28 perf-stat.i.iTLB-load-miss-rate%
15810507 ± 8% -28.3% 11341997 ± 5% perf-stat.i.iTLB-load-misses
1.729e+10 ± 2% +13.6% 1.963e+10 ± 5% perf-stat.i.instructions
1150 ± 9% +52.8% 1757 ± 4% perf-stat.i.instructions-per-iTLB-miss
0.35 +12.7% 0.40 ± 5% perf-stat.i.ipc
0.43 ± 38% +60.5% 0.69 ± 18% perf-stat.i.metric.K/sec
110.59 ± 2% +10.7% 122.43 ± 5% perf-stat.i.metric.M/sec
0.75 ± 4% -0.1 0.61 perf-stat.overall.branch-miss-rate%
2.93 ± 2% -12.1% 2.58 ± 5% perf-stat.overall.cpi
87.11 -3.7 83.41 perf-stat.overall.iTLB-load-miss-rate%
1102 ± 9% +57.2% 1733 ± 4% perf-stat.overall.instructions-per-iTLB-miss
0.34 ± 2% +14.0% 0.39 ± 5% perf-stat.overall.ipc
3.491e+09 ± 2% +12.7% 3.934e+09 ± 5% perf-stat.ps.branch-instructions
26142110 ± 5% -9.0% 23798599 ± 4% perf-stat.ps.branch-misses
778595 ± 19% -90.7% 72559 ± 72% perf-stat.ps.context-switches
2.389e+09 ± 2% +8.8% 2.598e+09 ± 5% perf-stat.ps.dTLB-stores
15556518 ± 8% -28.3% 11159416 ± 5% perf-stat.ps.iTLB-load-misses
1.701e+10 ± 2% +13.6% 1.932e+10 ± 5% perf-stat.ps.instructions
1.074e+12 ± 2% +13.9% 1.224e+12 ± 5% perf-stat.total.instructions
34.47 ± 3% -3.6 30.89 ± 7% perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify
1.05 ± 10% -0.2 0.84 ± 7% perf-profile.calltrace.cycles-pp.menu_select.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
0.76 +0.4 1.13 ± 7% perf-profile.calltrace.cycles-pp.__radix_tree_lookup.sysvipc_find_ipc.seq_read_iter.seq_read.vfs_read
1.91 ± 12% +0.4 2.33 ± 2% perf-profile.calltrace.cycles-pp.kfree.free_msg.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.03 ± 2% +0.5 1.55 ± 5% perf-profile.calltrace.cycles-pp.sysvipc_find_ipc.seq_read_iter.seq_read.vfs_read.ksys_read
0.00 +0.5 0.55 ± 5% perf-profile.calltrace.cycles-pp._copy_from_user.load_msg.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.95 ± 14% +0.6 2.53 ± 14% perf-profile.calltrace.cycles-pp.do_msg_fill.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.24 ± 3% +0.6 1.84 ± 5% perf-profile.calltrace.cycles-pp.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.24 ± 3% +0.6 1.84 ± 5% perf-profile.calltrace.cycles-pp.seq_read_iter.seq_read.vfs_read.ksys_read.do_syscall_64
1.46 ± 17% +0.6 2.07 ± 19% perf-profile.calltrace.cycles-pp.store_msg.do_msg_fill.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.24 ± 3% +0.6 1.85 ± 5% perf-profile.calltrace.cycles-pp.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.24 ± 3% +0.6 1.84 ± 5% perf-profile.calltrace.cycles-pp.seq_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.18 ±141% +0.6 0.79 ± 18% perf-profile.calltrace.cycles-pp.__list_del_entry_valid.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.73 ± 9% +0.6 2.38 ± 12% perf-profile.calltrace.cycles-pp.ipc_obtain_object_check.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +0.7 0.69 ± 9% perf-profile.calltrace.cycles-pp.get_obj_cgroup_from_current.__kmalloc.load_msg.do_msgsnd.do_syscall_64
2.49 ± 14% +1.2 3.73 ± 17% perf-profile.calltrace.cycles-pp.__kmalloc.load_msg.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe
3.45 ± 10% +1.6 5.05 ± 11% perf-profile.calltrace.cycles-pp.load_msg.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.44 ± 3% +2.2 7.62 ± 5% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.52 ± 24% +2.9 8.44 ± 9% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe
29.00 ± 4% +2.9 31.94 ± 3% perf-profile.calltrace.cycles-pp.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
34.47 ± 3% -3.6 30.89 ± 7% perf-profile.children.cycles-pp.secondary_startup_64_no_verify
34.47 ± 3% -3.6 30.89 ± 7% perf-profile.children.cycles-pp.cpu_startup_entry
34.46 ± 3% -3.6 30.89 ± 7% perf-profile.children.cycles-pp.do_idle
2.02 ± 28% -1.8 0.21 ± 76% perf-profile.children.cycles-pp.poll_idle
1.84 ± 25% -1.6 0.20 ± 89% perf-profile.children.cycles-pp.__schedule
1.15 ± 18% -1.0 0.12 ±102% perf-profile.children.cycles-pp.try_to_wake_up
1.23 ± 17% -1.0 0.20 ± 55% perf-profile.children.cycles-pp.wake_up_q
1.16 ± 28% -1.0 0.15 ± 90% perf-profile.children.cycles-pp.schedule
0.72 ± 22% -0.7 0.05 ±101% perf-profile.children.cycles-pp.schedule_idle
0.52 ± 23% -0.5 0.05 ±100% perf-profile.children.cycles-pp.wake_q_add
0.52 ± 31% -0.5 0.06 ±100% perf-profile.children.cycles-pp.dequeue_task_fair
0.46 ± 17% -0.4 0.04 ±100% perf-profile.children.cycles-pp.ttwu_do_activate
0.47 ± 31% -0.4 0.05 ±100% perf-profile.children.cycles-pp.dequeue_entity
0.45 ± 17% -0.4 0.04 ±100% perf-profile.children.cycles-pp.enqueue_task_fair
0.33 ± 16% -0.3 0.03 ± 99% perf-profile.children.cycles-pp.enqueue_entity
0.28 ± 40% -0.2 0.04 ±102% perf-profile.children.cycles-pp.ttwu_queue_wakelist
0.26 ± 19% -0.2 0.03 ± 99% perf-profile.children.cycles-pp.update_load_avg
0.26 ± 37% -0.2 0.04 ±101% perf-profile.children.cycles-pp.update_curr
1.06 ± 9% -0.2 0.84 ± 7% perf-profile.children.cycles-pp.menu_select
0.23 ± 18% -0.2 0.03 ±100% perf-profile.children.cycles-pp.update_rq_clock
0.20 ± 35% -0.2 0.03 ±100% perf-profile.children.cycles-pp.tick_nohz_idle_exit
0.18 ± 20% -0.1 0.04 ±100% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
0.16 ± 37% -0.1 0.03 ±100% perf-profile.children.cycles-pp.nr_iowait_cpu
0.15 ± 37% -0.1 0.03 ±100% perf-profile.children.cycles-pp.update_ts_time_stats
0.16 ± 20% -0.1 0.04 ± 73% perf-profile.children.cycles-pp.sched_clock
0.18 ± 19% -0.1 0.07 ± 22% perf-profile.children.cycles-pp.sched_clock_cpu
0.15 ± 22% -0.1 0.04 ± 72% perf-profile.children.cycles-pp.native_sched_clock
0.11 ± 13% -0.0 0.06 ± 6% perf-profile.children.cycles-pp.read_tsc
0.05 ± 7% +0.0 0.07 ± 5% perf-profile.children.cycles-pp.number
0.07 ± 14% +0.0 0.09 ± 12% perf-profile.children.cycles-pp.page_counter_cancel
0.07 ± 7% +0.0 0.09 ± 8% perf-profile.children.cycles-pp.format_decode
0.07 ± 12% +0.0 0.10 ± 9% perf-profile.children.cycles-pp.page_counter_try_charge
0.08 ± 11% +0.0 0.10 ± 6% perf-profile.children.cycles-pp.__memcg_kmem_charge
0.07 ± 5% +0.0 0.09 ± 7% perf-profile.children.cycles-pp.radix_tree_lookup
0.07 ± 14% +0.0 0.09 ± 8% perf-profile.children.cycles-pp.msgctl_stat
0.26 ± 4% +0.0 0.29 ± 3% perf-profile.children.cycles-pp.ksys_msgctl
0.11 ± 9% +0.0 0.14 ± 8% perf-profile.children.cycles-pp.syscall_enter_from_user_mode
0.09 ± 7% +0.0 0.12 ± 10% perf-profile.children.cycles-pp.rcu_read_unlock_strict
0.09 ± 14% +0.0 0.12 ± 5% perf-profile.children.cycles-pp.security_msg_msg_free
0.16 ± 8% +0.0 0.20 ± 7% perf-profile.children.cycles-pp.__virt_addr_valid
0.01 ±223% +0.0 0.05 ± 9% perf-profile.children.cycles-pp.security_ipc_permission
0.19 ± 9% +0.1 0.24 ± 9% perf-profile.children.cycles-pp.__put_user_nocheck_8
0.17 ± 4% +0.1 0.22 ± 8% perf-profile.children.cycles-pp.__might_sleep
0.17 ± 8% +0.1 0.22 ± 6% perf-profile.children.cycles-pp.obj_cgroup_charge
0.15 ± 5% +0.1 0.20 ± 8% perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
0.12 ± 5% +0.1 0.18 ± 28% perf-profile.children.cycles-pp.__mod_memcg_state
0.20 ± 10% +0.1 0.27 ± 7% perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
0.26 ± 11% +0.1 0.32 ± 6% perf-profile.children.cycles-pp.___might_sleep
0.19 ± 6% +0.1 0.25 ± 4% perf-profile.children.cycles-pp.seq_printf
0.18 ± 7% +0.1 0.25 ± 5% perf-profile.children.cycles-pp.vsnprintf
0.18 ± 6% +0.1 0.25 ± 4% perf-profile.children.cycles-pp.seq_vprintf
0.19 ± 6% +0.1 0.27 ± 8% perf-profile.children.cycles-pp.__get_user_8
0.19 ± 5% +0.1 0.26 ± 4% perf-profile.children.cycles-pp.sysvipc_msg_proc_show
0.24 ± 6% +0.1 0.34 ± 11% perf-profile.children.cycles-pp.refill_obj_stock
0.44 ± 8% +0.1 0.53 ± 7% perf-profile.children.cycles-pp.__might_fault
0.24 ± 5% +0.1 0.33 ± 14% perf-profile.children.cycles-pp.__mod_memcg_lruvec_state
0.39 ± 5% +0.1 0.51 ± 6% perf-profile.children.cycles-pp._copy_to_user
0.36 ± 5% +0.1 0.49 ± 5% perf-profile.children.cycles-pp.copy_user_generic_unrolled
0.38 ± 5% +0.1 0.53 ± 7% perf-profile.children.cycles-pp.ksys_msgsnd
0.41 ± 6% +0.1 0.56 ± 9% perf-profile.children.cycles-pp.__check_heap_object
0.36 ± 6% +0.2 0.52 ± 7% perf-profile.children.cycles-pp.__entry_text_start
0.40 ± 5% +0.2 0.56 ± 5% perf-profile.children.cycles-pp._copy_from_user
0.56 ± 3% +0.2 0.76 ± 6% perf-profile.children.cycles-pp.syscall_return_via_sysret
0.44 ± 13% +0.2 0.65 ± 13% perf-profile.children.cycles-pp.idr_find
0.28 ± 9% +0.4 0.64 ± 29% perf-profile.children.cycles-pp.ipcperms
0.40 ± 26% +0.4 0.80 ± 18% perf-profile.children.cycles-pp.__list_del_entry_valid
0.26 ± 8% +0.4 0.70 ± 9% perf-profile.children.cycles-pp.get_obj_cgroup_from_current
1.98 ± 11% +0.4 2.43 ± 2% perf-profile.children.cycles-pp.kfree
1.12 ± 2% +0.5 1.64 ± 5% perf-profile.children.cycles-pp.__radix_tree_lookup
1.03 ± 2% +0.5 1.55 ± 5% perf-profile.children.cycles-pp.sysvipc_find_ipc
1.97 ± 14% +0.6 2.56 ± 14% perf-profile.children.cycles-pp.do_msg_fill
1.24 ± 3% +0.6 1.84 ± 5% perf-profile.children.cycles-pp.seq_read
1.37 ± 16% +0.6 1.98 ± 19% perf-profile.children.cycles-pp.__check_object_size
1.25 ± 3% +0.6 1.86 ± 5% perf-profile.children.cycles-pp.ksys_read
1.24 ± 3% +0.6 1.85 ± 5% perf-profile.children.cycles-pp.seq_read_iter
1.47 ± 17% +0.6 2.08 ± 19% perf-profile.children.cycles-pp.store_msg
1.25 ± 3% +0.6 1.86 ± 5% perf-profile.children.cycles-pp.vfs_read
2.55 ± 14% +1.3 3.81 ± 16% perf-profile.children.cycles-pp.__kmalloc
3.54 ± 11% +1.3 4.80 ± 13% perf-profile.children.cycles-pp.ipc_obtain_object_check
3.46 ± 10% +1.6 5.07 ± 12% perf-profile.children.cycles-pp.load_msg
29.06 ± 4% +2.9 31.99 ± 3% perf-profile.children.cycles-pp.do_msgrcv
11.01 ± 13% +5.1 16.12 ± 5% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
8.92 ± 14% -4.4 4.50 ± 13% perf-profile.self.cycles-pp._raw_spin_lock
13.59 ± 4% -2.0 11.61 ± 4% perf-profile.self.cycles-pp.do_msgsnd
1.93 ± 28% -1.7 0.20 ± 77% perf-profile.self.cycles-pp.poll_idle
0.52 ± 23% -0.5 0.05 ± 99% perf-profile.self.cycles-pp.wake_q_add
0.33 ± 25% -0.3 0.03 ±100% perf-profile.self.cycles-pp.__schedule
0.18 ± 22% -0.1 0.04 ±100% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.16 ± 37% -0.1 0.03 ±100% perf-profile.self.cycles-pp.nr_iowait_cpu
0.14 ± 20% -0.1 0.04 ± 72% perf-profile.self.cycles-pp.native_sched_clock
0.11 ± 11% -0.0 0.06 perf-profile.self.cycles-pp.read_tsc
0.16 ± 4% -0.0 0.13 ± 5% perf-profile.self.cycles-pp.msgctl_info
0.08 ± 8% +0.0 0.10 ± 8% perf-profile.self.cycles-pp.__might_fault
0.06 ± 9% +0.0 0.08 ± 10% perf-profile.self.cycles-pp.radix_tree_lookup
0.07 ± 7% +0.0 0.09 ± 7% perf-profile.self.cycles-pp.syscall_exit_to_user_mode
0.06 ± 8% +0.0 0.08 ± 8% perf-profile.self.cycles-pp._copy_from_user
0.05 ± 45% +0.0 0.07 ± 11% perf-profile.self.cycles-pp.drain_obj_stock
0.10 ± 9% +0.0 0.12 ± 10% perf-profile.self.cycles-pp.syscall_enter_from_user_mode
0.08 ± 7% +0.0 0.11 ± 7% perf-profile.self.cycles-pp.exit_to_user_mode_prepare
0.03 ± 70% +0.0 0.06 ± 7% perf-profile.self.cycles-pp.number
0.09 ± 12% +0.0 0.12 ± 7% perf-profile.self.cycles-pp.store_msg
0.05 ± 45% +0.0 0.08 ± 4% perf-profile.self.cycles-pp.ksys_msgsnd
0.11 ± 6% +0.0 0.14 ± 12% perf-profile.self.cycles-pp.__mod_memcg_lruvec_state
0.12 ± 13% +0.0 0.16 ± 8% perf-profile.self.cycles-pp.load_msg
0.02 ±141% +0.0 0.06 ± 11% perf-profile.self.cycles-pp.format_decode
0.13 ± 6% +0.0 0.18 ± 7% perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
0.01 ±223% +0.0 0.06 ± 13% perf-profile.self.cycles-pp.vsnprintf
0.11 ± 10% +0.1 0.17 ± 12% perf-profile.self.cycles-pp.refill_obj_stock
0.00 +0.1 0.05 ± 9% perf-profile.self.cycles-pp.security_ipc_permission
0.15 ± 5% +0.1 0.21 ± 7% perf-profile.self.cycles-pp.__might_sleep
0.12 ± 5% +0.1 0.18 ± 28% perf-profile.self.cycles-pp.__mod_memcg_state
0.19 ± 9% +0.1 0.25 ± 7% perf-profile.self.cycles-pp.copy_user_enhanced_fast_string
0.19 ± 5% +0.1 0.26 ± 8% perf-profile.self.cycles-pp.__get_user_8
0.25 ± 11% +0.1 0.32 ± 5% perf-profile.self.cycles-pp.___might_sleep
0.11 ± 10% +0.1 0.19 ± 9% perf-profile.self.cycles-pp.sysvipc_find_ipc
0.34 ± 6% +0.1 0.47 ± 5% perf-profile.self.cycles-pp.copy_user_generic_unrolled
0.40 ± 7% +0.1 0.54 ± 9% perf-profile.self.cycles-pp.__check_heap_object
0.36 ± 6% +0.2 0.52 ± 7% perf-profile.self.cycles-pp.__entry_text_start
0.56 ± 3% +0.2 0.76 ± 6% perf-profile.self.cycles-pp.syscall_return_via_sysret
0.43 ± 14% +0.2 0.64 ± 12% perf-profile.self.cycles-pp.idr_find
0.40 ± 25% +0.4 0.79 ± 18% perf-profile.self.cycles-pp.__list_del_entry_valid
0.24 ± 9% +0.4 0.65 ± 9% perf-profile.self.cycles-pp.get_obj_cgroup_from_current
1.06 ± 2% +0.5 1.55 ± 5% perf-profile.self.cycles-pp.__radix_tree_lookup
10.94 ± 13% +5.1 16.04 ± 5% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
stress-ng.time.voluntary_context_switches
4e+07 +-----------------------------------------------------------------+
| + + + + ++ + + +.+ + + +.+ |
3.5e+07 |-+ :+ :: : +. :: : : : :: : : :: : : : |
3e+07 |+.: + :: : + : + :: :: : : :: : : : : : : + |
|: + + :+ : : + + : .+ +.+ + + :+.+ : : + + :: |
2.5e+07 |-+ + +.: : + :: + :: :+: : +.+|
| + :: + : + :: :|
2e+07 |-+ + + + |
| |
1.5e+07 |-+ |
1e+07 |-+ |
| |
5e+06 |-+ O O O O O |
|O OO O O O O O O O O O OO O O O|
0 +-----------------------------------------------------------------+
stress-ng.msg.ops
3.4e+08 +-----------------------------------------------------------------+
| O O OO O O |
3.2e+08 |-+O O O O OO O OO O O |
|O O O |
3e+08 |-+ O O O OO O OO O|
| O O O O O O O O |
2.8e+08 |-+ O O O O O O O |
| O |
2.6e+08 |-+ |
| |
2.4e+08 |-+ .+ +. |
|+.+ .+ + +.++.++. + + .++.+++.+ + + .++.++ +.+++.+ + |
2.2e+08 |-+ + :+ + + + + + + :+ +. :+ +.+|
| + + + + + |
2e+08 +-----------------------------------------------------------------+
stress-ng.msg.ops_per_sec
5.5e+06 +-----------------------------------------------------------------+
| O O O O OO O OO O O |
|O O O O |
5e+06 |-+ O O O O O O OO O O O O|
| O O O O O O O O O O |
| OO |
4.5e+06 |-+ |
| |
4e+06 |-+ |
| .+ + +. +. + + +. +.+ + + .+ .++.+ .++ +. |
|+.++ :+ + ++.+ + + + + +.+ ++ :+ +. :+ + + +.+ ++. |
3.5e+06 |-+ + + + + + +|
| |
| |
3e+06 +-----------------------------------------------------------------+
[*] 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.
---
0DAY/LKP+ Test Infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/lkp@lists.01.org Intel Corporation
Thanks,
Oliver Sang
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