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Open Source and information security mailing list archives
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Date: Wed, 24 Oct 2018 20:13:58 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Yuchung Cheng <ycheng@...gle.com>
Cc: "David S. Miller" <davem@...emloft.net>,
Wei Wang <weiwan@...gle.com>,
Neal Cardwell <ncardwell@...gle.com>,
Eric Dumazet <edumazet@...gle.com>,
Soheil Hassas Yeganeh <soheil@...gle.com>,
LKML <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org,
lkp@...org
Subject: [LKP] [tcp] a337531b94: netperf.Throughput_Mbps -6.1% regression
Greeting,
FYI, we noticed a -6.1% regression of netperf.Throughput_Mbps due to commit:
commit: a337531b942bd8a03e7052444d7e36972aac2d92 ("tcp: up initial rmem to 128KB and SYN rwin to around 64KB")
https://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git master
in testcase: netperf
on test machine: 16 threads Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz with 8G memory
with following parameters:
ip: ipv4
runtime: 900s
nr_threads: 200%
cluster: cs-localhost
test: TCP_STREAM
ucode: 0x7000013
cpufreq_governor: performance
test-description: Netperf is a benchmark that can be use to measure various aspect of networking performance.
test-url: http://www.netperf.org/netperf/
In addition to that, the commit also has significant impact on the following tests:
+------------------+-------------------------------------------------------------------+
| testcase: change | netperf: netperf.Throughput_Mbps -1.0% regression |
| test machine | 16 threads Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz with 8G memory |
| test parameters | cluster=cs-localhost |
| | cpufreq_governor=performance |
| | ip=ipv4 |
| | nr_threads=200% |
| | runtime=300s |
| | send_size=5K |
| | test=TCP_SENDFILE |
| | ucode=0x7000013 |
+------------------+-------------------------------------------------------------------+
| testcase: change | netperf: netperf.Throughput_Mbps -5.9% regression |
| test machine | 16 threads Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz with 8G memory |
| test parameters | cluster=cs-localhost |
| | cpufreq_governor=performance |
| | ip=ipv4 |
| | nr_threads=200% |
| | runtime=900s |
| | test=TCP_MAERTS |
| | ucode=0x7000013 |
+------------------+-------------------------------------------------------------------+
| testcase: change | netperf: netperf.Throughput_Mbps -3.2% regression |
| test machine | 4 threads Intel(R) Core(TM) i5-3317U CPU @ 1.70GHz with 4G memory |
| test parameters | cluster=cs-localhost |
| | cpufreq_governor=performance |
| | ip=ipv4 |
| | nr_threads=200% |
| | runtime=900s |
| | test=TCP_MAERTS |
| | ucode=0x20 |
+------------------+-------------------------------------------------------------------+
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
=========================================================================================
cluster/compiler/cpufreq_governor/ip/kconfig/nr_threads/rootfs/runtime/tbox_group/test/testcase/ucode:
cs-localhost/gcc-7/performance/ipv4/x86_64-rhel-7.2/200%/debian-x86_64-2018-04-03.cgz/900s/lkp-bdw-de1/TCP_STREAM/netperf/0x7000013
commit:
3ff6cde846 ("hns3: Another build fix.")
a337531b94 ("tcp: up initial rmem to 128KB and SYN rwin to around 64KB")
3ff6cde846857d45 a337531b942bd8a03e7052444d
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
:4 50% 2:4 dmesg.WARNING:at#for_ip_interrupt_entry/0x
%stddev %change %stddev
\ | \
2497 -6.1% 2345 netperf.Throughput_Mbps
79924 -6.1% 75061 netperf.Throughput_total_Mbps
186513 +11.3% 207590 netperf.time.involuntary_context_switches
5.488e+08 -6.1% 5.154e+08 netperf.workload
1172 ± 34% -37.6% 731.75 ± 5% cpuidle.C1E.usage
1137 ± 34% -40.0% 682.25 ± 8% turbostat.C1E
2775 ± 11% +17.5% 3261 ± 9% sched_debug.cpu.nr_switches.stddev
0.01 ± 17% +28.2% 0.01 ± 10% sched_debug.rt_rq:/.rt_time.avg
0.14 ± 17% +28.2% 0.18 ± 10% sched_debug.rt_rq:/.rt_time.max
0.03 ± 17% +28.2% 0.04 ± 10% sched_debug.rt_rq:/.rt_time.stddev
66336 +0.9% 66948 proc-vmstat.nr_anon_pages
2.755e+08 -6.1% 2.588e+08 proc-vmstat.numa_hit
2.755e+08 -6.1% 2.588e+08 proc-vmstat.numa_local
2.197e+09 -6.1% 2.064e+09 proc-vmstat.pgalloc_normal
2.197e+09 -6.1% 2.064e+09 proc-vmstat.pgfree
5.903e+11 -7.9% 5.438e+11 perf-stat.branch-instructions
2.68 -0.0 2.64 perf-stat.branch-miss-rate%
1.582e+10 -9.2% 1.436e+10 perf-stat.branch-misses
6.26e+11 -4.7% 5.964e+11 perf-stat.cache-misses
6.26e+11 -4.7% 5.964e+11 perf-stat.cache-references
11.69 +8.6% 12.69 perf-stat.cpi
123723 +2.1% 126291 perf-stat.cpu-migrations
0.09 ± 2% +0.0 0.09 perf-stat.dTLB-load-miss-rate%
1.475e+12 -7.1% 1.37e+12 perf-stat.dTLB-loads
1.094e+12 -6.9% 1.018e+12 perf-stat.dTLB-stores
2.912e+08 ± 5% -13.0% 2.533e+08 perf-stat.iTLB-loads
3.019e+12 -7.9% 2.781e+12 perf-stat.instructions
0.09 -7.9% 0.08 perf-stat.ipc
5500 -1.9% 5394 perf-stat.path-length
0.53 ± 2% -0.2 0.38 ± 57% perf-profile.calltrace.cycles-pp.ip_output.__ip_queue_xmit.__tcp_transmit_skb.tcp_write_xmit.__tcp_push_pending_frames
0.63 ± 2% -0.1 0.58 ± 4% perf-profile.calltrace.cycles-pp.syscall_return_via_sysret
0.73 ± 3% +0.1 0.78 ± 2% perf-profile.calltrace.cycles-pp.tcp_clean_rtx_queue.tcp_ack.tcp_rcv_established.tcp_v4_do_rcv.tcp_v4_rcv
0.96 +0.1 1.03 perf-profile.calltrace.cycles-pp.tcp_ack.tcp_rcv_established.tcp_v4_do_rcv.tcp_v4_rcv.ip_local_deliver_finish
98.02 +0.1 98.13 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe
97.88 +0.1 98.00 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.70 ± 3% -0.1 0.64 ± 4% perf-profile.children.cycles-pp.syscall_return_via_sysret
0.26 ± 5% -0.0 0.21 ± 6% perf-profile.children.cycles-pp._raw_spin_lock_bh
0.28 ± 5% -0.0 0.24 ± 6% perf-profile.children.cycles-pp.lock_sock_nested
0.46 ± 4% -0.0 0.43 ± 2% perf-profile.children.cycles-pp.nf_hook_slow
0.21 ± 8% -0.0 0.18 ± 5% perf-profile.children.cycles-pp.tcp_rcv_space_adjust
0.08 ± 5% -0.0 0.06 perf-profile.children.cycles-pp.entry_SYSCALL_64_stage2
0.08 ± 6% -0.0 0.06 ± 6% perf-profile.children.cycles-pp.ip_finish_output
0.17 ± 6% +0.0 0.20 ± 5% perf-profile.children.cycles-pp.tcp_event_new_data_sent
0.24 ± 4% +0.0 0.27 ± 2% perf-profile.children.cycles-pp.mod_timer
0.15 ± 2% +0.0 0.18 ± 2% perf-profile.children.cycles-pp.__might_sleep
0.80 ± 3% +0.0 0.84 ± 2% perf-profile.children.cycles-pp.tcp_clean_rtx_queue
0.30 ± 3% +0.1 0.36 ± 4% perf-profile.children.cycles-pp.__might_fault
1.61 ± 4% +0.1 1.69 perf-profile.children.cycles-pp.__release_sock
1.06 ± 2% +0.1 1.14 perf-profile.children.cycles-pp.tcp_ack
98.24 +0.1 98.36 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
98.09 +0.1 98.23 perf-profile.children.cycles-pp.do_syscall_64
70.28 +0.6 70.86 perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
1.56 -0.1 1.48 ± 3% perf-profile.self.cycles-pp.copy_page_to_iter
0.70 ± 3% -0.1 0.64 ± 4% perf-profile.self.cycles-pp.syscall_return_via_sysret
1.37 ± 2% -0.1 1.32 ± 2% perf-profile.self.cycles-pp.__free_pages_ok
0.55 ± 3% -0.0 0.50 ± 3% perf-profile.self.cycles-pp.__alloc_skb
0.44 ± 3% -0.0 0.40 ± 5% perf-profile.self.cycles-pp.tcp_recvmsg
0.16 ± 9% -0.0 0.14 ± 5% perf-profile.self.cycles-pp.sock_has_perm
0.08 ± 6% -0.0 0.06 perf-profile.self.cycles-pp.entry_SYSCALL_64_stage2
0.10 ± 4% +0.0 0.12 ± 6% perf-profile.self.cycles-pp.tcp_clean_rtx_queue
0.14 ± 6% +0.0 0.17 ± 4% perf-profile.self.cycles-pp.__might_sleep
69.25 +0.5 69.77 perf-profile.self.cycles-pp.copy_user_enhanced_fast_string
netperf.Throughput_Mbps
3000 +-+------------------------------------------------------------------+
| |
2500 +-+..+.+..+.+..+.+..+.+..+.+..+.+..+.+.+..+.+..+.+..+.+..+.+..+.+..+.|
O O O O O O O O O O O O O O O O O O O O O O O O O |
| : |
2000 +-+ |
|: |
1500 +-+ |
|: |
1000 +-+ |
|: |
|: |
500 +-+ |
| |
0 +-+------------------------------------------------------------------+
netperf.Throughput_total_Mbps
90000 +-+-----------------------------------------------------------------+
| |
80000 O-O..O.O..O.O..O.O.O..O.O..O.O..O.O.O..O.O..O.O..O.O.O..O.O..+.+..+.|
70000 +-+ |
| : |
60000 +-+ |
50000 +-+ |
|: |
40000 +-+ |
30000 +-+ |
|: |
20000 +-+ |
10000 +-+ |
| |
0 +-+-----------------------------------------------------------------+
netperf.workload
6e+08 +-+-----------------------------------------------------------------+
| +..+.+..+.+..+.+.+..+.+..+.+..+.+.+..+.+..+.+..+.+.+..+.+..+.+..+.|
5e+08 O-O O O O O O O O O O O O O O O O O O O O O O O O |
| : |
| : |
4e+08 +-+ |
|: |
3e+08 +-+ |
|: |
2e+08 +-+ |
|: |
| |
1e+08 +-+ |
| |
0 +-+-----------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
***************************************************************************************************
lkp-bdw-de1: 16 threads Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz with 8G memory
=========================================================================================
cluster/compiler/cpufreq_governor/ip/kconfig/nr_threads/rootfs/runtime/send_size/tbox_group/test/testcase/ucode:
cs-localhost/gcc-7/performance/ipv4/x86_64-rhel-7.2/200%/debian-x86_64-2018-04-03.cgz/300s/5K/lkp-bdw-de1/TCP_SENDFILE/netperf/0x7000013
commit:
3ff6cde846 ("hns3: Another build fix.")
a337531b94 ("tcp: up initial rmem to 128KB and SYN rwin to around 64KB")
3ff6cde846857d45 a337531b942bd8a03e7052444d
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
1:4 -25% :4 dmesg.WARNING:at#for_ip_interrupt_entry/0x
%stddev %change %stddev
\ | \
5211 -1.0% 5160 netperf.Throughput_Mbps
166777 -1.0% 165138 netperf.Throughput_total_Mbps
1268 -1.6% 1247 netperf.time.percent_of_cpu_this_job_got
3539 -1.6% 3481 netperf.time.system_time
282.77 -1.5% 278.54 netperf.time.user_time
1435875 -1.0% 1421780 netperf.time.voluntary_context_switches
1.222e+09 -1.0% 1.21e+09 netperf.workload
22728 -1.3% 22437 vmstat.system.cs
1218263 ± 3% -5.6% 1150027 ± 4% proc-vmstat.pgalloc_normal
1197588 ± 4% -6.0% 1125684 ± 4% proc-vmstat.pgfree
3424 ± 17% -28.2% 2456 ± 21% sched_debug.cpu.nr_load_updates.stddev
9.00 ± 11% -19.9% 7.21 ± 11% sched_debug.cpu.nr_uninterruptible.max
35344728 ± 33% -94.5% 1954598 ±144% cpuidle.C3.time
79217 ± 32% -95.5% 3571 ±115% cpuidle.C3.usage
13342584 ± 19% +253.4% 47153200 ± 34% cpuidle.C6.time
17886 ± 21% +185.8% 51115 ± 34% cpuidle.C6.usage
4295 ± 24% +108.0% 8934 ± 53% cpuidle.POLL.time
79180 ± 32% -95.6% 3487 ±118% turbostat.C3
0.73 ± 32% -0.7 0.04 ±144% turbostat.C3%
17693 ± 21% +187.9% 50931 ± 34% turbostat.C6
0.27 ± 19% +0.7 0.97 ± 34% turbostat.C6%
0.35 ± 30% -89.9% 0.04 ±173% turbostat.CPU%c3
0.08 ± 6% +693.3% 0.59 ± 38% turbostat.CPU%c6
2.95 +3.1% 3.04 turbostat.RAMWatt
1.711e+12 -1.3% 1.689e+12 perf-stat.branch-instructions
5.345e+10 -1.2% 5.283e+10 perf-stat.branch-misses
9.417e+10 +16.7% 1.099e+11 perf-stat.cache-misses
9.417e+10 +16.7% 1.099e+11 perf-stat.cache-references
6927335 -1.1% 6849494 perf-stat.context-switches
2.936e+12 -1.3% 2.899e+12 perf-stat.dTLB-loads
1.796e+12 -1.3% 1.773e+12 perf-stat.dTLB-stores
80.43 +3.5 83.95 perf-stat.iTLB-load-miss-rate%
3.809e+09 ± 4% -4.7% 3.629e+09 ± 2% perf-stat.iTLB-load-misses
9.248e+08 ± 3% -25.0% 6.934e+08 perf-stat.iTLB-loads
8.835e+12 -1.3% 8.719e+12 perf-stat.instructions
69.17 -1.1 68.08 perf-profile.calltrace.cycles-pp.__x64_sys_sendfile64.do_syscall_64.entry_SYSCALL_64_after_hwframe
65.80 -1.0 64.79 perf-profile.calltrace.cycles-pp.do_sendfile.__x64_sys_sendfile64.do_syscall_64.entry_SYSCALL_64_after_hwframe
55.88 -0.8 55.04 perf-profile.calltrace.cycles-pp.do_splice_direct.do_sendfile.__x64_sys_sendfile64.do_syscall_64.entry_SYSCALL_64_after_hwframe
52.32 -0.8 51.56 perf-profile.calltrace.cycles-pp.splice_direct_to_actor.do_splice_direct.do_sendfile.__x64_sys_sendfile64.do_syscall_64
35.71 -0.6 35.11 perf-profile.calltrace.cycles-pp.direct_splice_actor.splice_direct_to_actor.do_splice_direct.do_sendfile.__x64_sys_sendfile64
34.84 -0.6 34.26 perf-profile.calltrace.cycles-pp.splice_from_pipe.direct_splice_actor.splice_direct_to_actor.do_splice_direct.do_sendfile
33.94 -0.5 33.41 perf-profile.calltrace.cycles-pp.__splice_from_pipe.splice_from_pipe.direct_splice_actor.splice_direct_to_actor.do_splice_direct
26.16 -0.5 25.70 perf-profile.calltrace.cycles-pp.tcp_sendpage.inet_sendpage.kernel_sendpage.sock_sendpage.pipe_to_sendpage
30.02 -0.5 29.55 perf-profile.calltrace.cycles-pp.pipe_to_sendpage.__splice_from_pipe.splice_from_pipe.direct_splice_actor.splice_direct_to_actor
28.77 -0.4 28.34 perf-profile.calltrace.cycles-pp.sock_sendpage.pipe_to_sendpage.__splice_from_pipe.splice_from_pipe.direct_splice_actor
27.68 -0.4 27.27 perf-profile.calltrace.cycles-pp.inet_sendpage.kernel_sendpage.sock_sendpage.pipe_to_sendpage.__splice_from_pipe
27.98 -0.4 27.58 perf-profile.calltrace.cycles-pp.kernel_sendpage.sock_sendpage.pipe_to_sendpage.__splice_from_pipe.splice_from_pipe
20.30 -0.3 19.95 perf-profile.calltrace.cycles-pp.tcp_sendpage_locked.tcp_sendpage.inet_sendpage.kernel_sendpage.sock_sendpage
19.49 -0.3 19.16 perf-profile.calltrace.cycles-pp.do_tcp_sendpages.tcp_sendpage_locked.tcp_sendpage.inet_sendpage.kernel_sendpage
9.78 -0.2 9.53 perf-profile.calltrace.cycles-pp.tcp_write_xmit.__tcp_push_pending_frames.do_tcp_sendpages.tcp_sendpage_locked.tcp_sendpage
9.94 -0.2 9.70 perf-profile.calltrace.cycles-pp.__tcp_push_pending_frames.do_tcp_sendpages.tcp_sendpage_locked.tcp_sendpage.inet_sendpage
6.32 -0.2 6.09 perf-profile.calltrace.cycles-pp.__tcp_transmit_skb.tcp_write_xmit.__tcp_push_pending_frames.do_tcp_sendpages.tcp_sendpage_locked
5.59 -0.2 5.42 perf-profile.calltrace.cycles-pp.__ip_queue_xmit.__tcp_transmit_skb.tcp_write_xmit.__tcp_push_pending_frames.do_tcp_sendpages
5.19 -0.2 5.02 perf-profile.calltrace.cycles-pp.ip_output.__ip_queue_xmit.__tcp_transmit_skb.tcp_write_xmit.__tcp_push_pending_frames
4.79 -0.2 4.62 perf-profile.calltrace.cycles-pp.ip_rcv.__netif_receive_skb_one_core.process_backlog.net_rx_action.__softirqentry_text_start
5.51 -0.2 5.35 perf-profile.calltrace.cycles-pp.__softirqentry_text_start.do_softirq_own_stack.do_softirq.__local_bh_enable_ip.ip_finish_output2
5.00 -0.2 4.84 perf-profile.calltrace.cycles-pp.__netif_receive_skb_one_core.process_backlog.net_rx_action.__softirqentry_text_start.do_softirq_own_stack
5.52 -0.2 5.36 perf-profile.calltrace.cycles-pp.do_softirq_own_stack.do_softirq.__local_bh_enable_ip.ip_finish_output2.ip_output
5.37 -0.2 5.21 perf-profile.calltrace.cycles-pp.net_rx_action.__softirqentry_text_start.do_softirq_own_stack.do_softirq.__local_bh_enable_ip
4.68 -0.2 4.53 perf-profile.calltrace.cycles-pp.security_file_permission.do_sendfile.__x64_sys_sendfile64.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.61 -0.2 5.46 perf-profile.calltrace.cycles-pp.do_softirq.__local_bh_enable_ip.ip_finish_output2.ip_output.__ip_queue_xmit
5.21 -0.2 5.06 perf-profile.calltrace.cycles-pp.process_backlog.net_rx_action.__softirqentry_text_start.do_softirq_own_stack.do_softirq
4.58 -0.2 4.42 perf-profile.calltrace.cycles-pp.ip_finish_output2.ip_output.__ip_queue_xmit.__tcp_transmit_skb.tcp_write_xmit
5.66 -0.2 5.50 perf-profile.calltrace.cycles-pp.__local_bh_enable_ip.ip_finish_output2.ip_output.__ip_queue_xmit.__tcp_transmit_skb
4.39 -0.2 4.24 perf-profile.calltrace.cycles-pp.__entry_SYSCALL_64_trampoline
2.87 ± 2% -0.1 2.76 perf-profile.calltrace.cycles-pp.selinux_file_permission.security_file_permission.do_sendfile.__x64_sys_sendfile64.do_syscall_64
1.25 ± 3% -0.1 1.15 perf-profile.calltrace.cycles-pp.__inode_security_revalidate.selinux_file_permission.security_file_permission.do_sendfile.__x64_sys_sendfile64
4.30 -0.1 4.20 perf-profile.calltrace.cycles-pp.ip_local_deliver_finish.ip_local_deliver.ip_rcv.__netif_receive_skb_one_core.process_backlog
1.86 -0.1 1.77 ± 3% perf-profile.calltrace.cycles-pp.release_sock.tcp_sendpage.inet_sendpage.kernel_sendpage.sock_sendpage
1.14 -0.1 1.08 ± 2% perf-profile.calltrace.cycles-pp.file_has_perm.security_file_permission.do_splice_direct.do_sendfile.__x64_sys_sendfile64
0.69 -0.1 0.63 perf-profile.calltrace.cycles-pp.tcp_release_cb.release_sock.tcp_sendpage.inet_sendpage.kernel_sendpage
0.61 ± 2% -0.1 0.56 ± 2% perf-profile.calltrace.cycles-pp.__might_fault.__x64_sys_sendfile64.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.61 ± 2% -0.0 0.57 ± 4% perf-profile.calltrace.cycles-pp.avc_has_perm.file_has_perm.security_file_permission.do_splice_direct.do_sendfile
0.57 ± 2% +0.0 0.61 ± 2% perf-profile.calltrace.cycles-pp.___might_sleep.__might_fault.copy_page_to_iter.skb_copy_datagram_iter.tcp_recvmsg
90.63 +0.2 90.83 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe
91.39 +0.2 91.62 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe
20.12 +1.3 21.46 perf-profile.calltrace.cycles-pp.__x64_sys_recvfrom.do_syscall_64.entry_SYSCALL_64_after_hwframe
20.10 +1.3 21.44 perf-profile.calltrace.cycles-pp.__sys_recvfrom.__x64_sys_recvfrom.do_syscall_64.entry_SYSCALL_64_after_hwframe
19.84 +1.4 21.24 perf-profile.calltrace.cycles-pp.tcp_recvmsg.inet_recvmsg.__sys_recvfrom.__x64_sys_recvfrom.do_syscall_64
19.89 +1.4 21.30 perf-profile.calltrace.cycles-pp.inet_recvmsg.__sys_recvfrom.__x64_sys_recvfrom.do_syscall_64.entry_SYSCALL_64_after_hwframe
15.07 +1.6 16.65 perf-profile.calltrace.cycles-pp.skb_copy_datagram_iter.tcp_recvmsg.inet_recvmsg.__sys_recvfrom.__x64_sys_recvfrom
14.25 +1.6 15.82 perf-profile.calltrace.cycles-pp.copy_page_to_iter.skb_copy_datagram_iter.tcp_recvmsg.inet_recvmsg.__sys_recvfrom
11.15 +1.6 12.74 perf-profile.calltrace.cycles-pp.copyout.copy_page_to_iter.skb_copy_datagram_iter.tcp_recvmsg.inet_recvmsg
10.84 +1.6 12.45 perf-profile.calltrace.cycles-pp.copy_user_enhanced_fast_string.copyout.copy_page_to_iter.skb_copy_datagram_iter.tcp_recvmsg
69.33 -1.1 68.23 perf-profile.children.cycles-pp.__x64_sys_sendfile64
65.94 -1.0 64.92 perf-profile.children.cycles-pp.do_sendfile
55.98 -0.8 55.14 perf-profile.children.cycles-pp.do_splice_direct
52.38 -0.8 51.60 perf-profile.children.cycles-pp.splice_direct_to_actor
35.77 -0.6 35.16 perf-profile.children.cycles-pp.direct_splice_actor
34.91 -0.6 34.33 perf-profile.children.cycles-pp.splice_from_pipe
34.07 -0.5 33.53 perf-profile.children.cycles-pp.__splice_from_pipe
30.09 -0.5 29.62 perf-profile.children.cycles-pp.pipe_to_sendpage
26.31 -0.5 25.86 perf-profile.children.cycles-pp.tcp_sendpage
28.85 -0.4 28.42 perf-profile.children.cycles-pp.sock_sendpage
27.75 -0.4 27.33 perf-profile.children.cycles-pp.inet_sendpage
28.05 -0.4 27.65 perf-profile.children.cycles-pp.kernel_sendpage
20.38 -0.3 20.03 perf-profile.children.cycles-pp.tcp_sendpage_locked
19.62 -0.3 19.29 perf-profile.children.cycles-pp.do_tcp_sendpages
9.69 -0.3 9.42 perf-profile.children.cycles-pp.security_file_permission
8.60 -0.2 8.38 perf-profile.children.cycles-pp.__tcp_transmit_skb
10.66 -0.2 10.43 perf-profile.children.cycles-pp.tcp_write_xmit
10.79 -0.2 10.56 perf-profile.children.cycles-pp.__tcp_push_pending_frames
7.82 -0.2 7.64 perf-profile.children.cycles-pp.__ip_queue_xmit
7.38 -0.2 7.20 perf-profile.children.cycles-pp.ip_output
6.36 -0.2 6.19 perf-profile.children.cycles-pp.__local_bh_enable_ip
5.95 -0.2 5.78 perf-profile.children.cycles-pp.__entry_SYSCALL_64_trampoline
4.86 -0.2 4.69 perf-profile.children.cycles-pp.ip_rcv
5.07 -0.2 4.91 perf-profile.children.cycles-pp.__netif_receive_skb_one_core
5.44 -0.2 5.29 perf-profile.children.cycles-pp.net_rx_action
5.58 -0.2 5.42 perf-profile.children.cycles-pp.do_softirq_own_stack
5.28 -0.2 5.13 perf-profile.children.cycles-pp.process_backlog
6.70 -0.2 6.55 perf-profile.children.cycles-pp.ip_finish_output2
5.67 -0.1 5.52 perf-profile.children.cycles-pp.do_softirq
2.76 ± 3% -0.1 2.62 perf-profile.children.cycles-pp.__inode_security_revalidate
1.39 ± 4% -0.1 1.27 ± 2% perf-profile.children.cycles-pp._cond_resched
4.45 -0.1 4.34 perf-profile.children.cycles-pp.ip_local_deliver
0.73 ± 5% -0.1 0.64 ± 3% perf-profile.children.cycles-pp.rcu_all_qs
0.72 -0.1 0.65 perf-profile.children.cycles-pp.tcp_release_cb
0.30 ± 5% -0.1 0.24 ± 3% perf-profile.children.cycles-pp.tcp_rcv_space_adjust
0.43 ± 4% -0.0 0.39 ± 5% perf-profile.children.cycles-pp.copy_user_generic_unrolled
0.17 ± 7% -0.0 0.12 ± 6% perf-profile.children.cycles-pp.ip_rcv_finish_core
0.19 ± 7% -0.0 0.15 ± 6% perf-profile.children.cycles-pp.ip_rcv_finish
0.14 ± 5% -0.0 0.11 ± 8% perf-profile.children.cycles-pp.tcp_rearm_rto
0.10 ± 11% -0.0 0.06 ± 6% perf-profile.children.cycles-pp.sockfd_lookup_light
0.07 ± 5% +0.0 0.09 ± 5% perf-profile.children.cycles-pp.skb_entail
0.11 ± 3% +0.0 0.13 ± 6% perf-profile.children.cycles-pp.scheduler_tick
0.51 ± 3% +0.0 0.55 ± 3% perf-profile.children.cycles-pp.tcp_established_options
90.70 +0.2 90.90 perf-profile.children.cycles-pp.do_syscall_64
91.47 +0.2 91.70 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
20.13 +1.3 21.47 perf-profile.children.cycles-pp.__x64_sys_recvfrom
20.10 +1.3 21.44 perf-profile.children.cycles-pp.__sys_recvfrom
19.89 +1.4 21.30 perf-profile.children.cycles-pp.inet_recvmsg
19.84 +1.4 21.26 perf-profile.children.cycles-pp.tcp_recvmsg
16.63 +1.6 18.19 perf-profile.children.cycles-pp.copy_page_to_iter
15.08 +1.6 16.66 perf-profile.children.cycles-pp.skb_copy_datagram_iter
11.24 +1.6 12.82 perf-profile.children.cycles-pp.copyout
11.24 +1.6 12.82 perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
5.68 -0.2 5.51 perf-profile.self.cycles-pp.__entry_SYSCALL_64_trampoline
0.67 -0.1 0.60 ± 2% perf-profile.self.cycles-pp.tcp_release_cb
0.93 ± 2% -0.1 0.86 ± 2% perf-profile.self.cycles-pp.__inode_security_revalidate
1.09 ± 2% -0.0 1.05 ± 2% perf-profile.self.cycles-pp.do_syscall_64
0.16 ± 9% -0.0 0.12 ± 7% perf-profile.self.cycles-pp.ip_rcv_finish_core
0.09 ± 11% -0.0 0.05 ± 62% perf-profile.self.cycles-pp.__tcp_ack_snd_check
0.40 ± 3% -0.0 0.36 ± 7% perf-profile.self.cycles-pp.copy_user_generic_unrolled
0.80 -0.0 0.77 ± 2% perf-profile.self.cycles-pp.current_time
0.28 ± 2% -0.0 0.25 ± 3% perf-profile.self.cycles-pp.tcp_recvmsg
0.27 ± 6% -0.0 0.24 ± 5% perf-profile.self.cycles-pp.__alloc_skb
0.18 ± 6% -0.0 0.15 ± 7% perf-profile.self.cycles-pp.tcp_mstamp_refresh
0.10 ± 5% -0.0 0.08 ± 5% perf-profile.self.cycles-pp.__tcp_select_window
0.22 ± 3% +0.0 0.24 ± 2% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.46 ± 5% +0.0 0.51 ± 4% perf-profile.self.cycles-pp.tcp_established_options
11.14 +1.5 12.68 perf-profile.self.cycles-pp.copy_user_enhanced_fast_string
***************************************************************************************************
lkp-bdw-de1: 16 threads Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz with 8G memory
=========================================================================================
cluster/compiler/cpufreq_governor/ip/kconfig/nr_threads/rootfs/runtime/tbox_group/test/testcase/ucode:
cs-localhost/gcc-7/performance/ipv4/x86_64-rhel-7.2/200%/debian-x86_64-2018-04-03.cgz/900s/lkp-bdw-de1/TCP_MAERTS/netperf/0x7000013
commit:
3ff6cde846 ("hns3: Another build fix.")
a337531b94 ("tcp: up initial rmem to 128KB and SYN rwin to around 64KB")
3ff6cde846857d45 a337531b942bd8a03e7052444d
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
1:4 2% 1:4 perf-profile.children.cycles-pp.schedule_timeout
%stddev %change %stddev
\ | \
2497 -5.9% 2349 netperf.Throughput_Mbps
79914 -5.9% 75172 netperf.Throughput_total_Mbps
2472 +4.7% 2588 netperf.time.maximum_resident_set_size
8998 +8.0% 9715 netperf.time.minor_page_faults
88.91 -13.7% 76.77 netperf.time.user_time
5.487e+08 -5.9% 5.162e+08 netperf.workload
50507215 ± 49% -63.0% 18671277 ± 27% cpuidle.C3.time
111760 ± 6% +12.4% 125584 ± 3% meminfo.DirectMap4k
0.35 ± 49% -0.2 0.13 ± 29% turbostat.C3%
42.19 -1.2% 41.70 turbostat.PkgWatt
1988 +9.6% 2180 ± 2% sched_debug.cfs_rq:/.util_est_enqueued.max
401.62 ± 3% +11.2% 446.64 ± 4% sched_debug.cfs_rq:/.util_est_enqueued.stddev
3.91 ± 12% -18.4% 3.19 ± 14% sched_debug.cpu.nr_uninterruptible.stddev
697.25 ± 4% +48.3% 1034 ± 19% slabinfo.dmaengine-unmap-16.active_objs
697.25 ± 4% +48.3% 1034 ± 19% slabinfo.dmaengine-unmap-16.num_objs
1464 ± 11% -20.9% 1157 ± 9% slabinfo.skbuff_head_cache.active_objs
1464 ± 11% -20.9% 1157 ± 9% slabinfo.skbuff_head_cache.num_objs
70462 +1.3% 71390 proc-vmstat.nr_active_anon
66190 +1.5% 67154 proc-vmstat.nr_anon_pages
70462 +1.3% 71390 proc-vmstat.nr_zone_active_anon
2.756e+08 -6.0% 2.592e+08 proc-vmstat.numa_hit
2.756e+08 -6.0% 2.592e+08 proc-vmstat.numa_local
2.197e+09 -6.0% 2.067e+09 proc-vmstat.pgalloc_normal
2.197e+09 -6.0% 2.066e+09 proc-vmstat.pgfree
5.831e+11 -7.8% 5.377e+11 perf-stat.branch-instructions
1.567e+10 -8.9% 1.428e+10 perf-stat.branch-misses
6.246e+11 -4.4% 5.974e+11 perf-stat.cache-misses
6.246e+11 -4.4% 5.974e+11 perf-stat.cache-references
11.79 +8.4% 12.78 perf-stat.cpi
122574 +2.4% 125502 perf-stat.cpu-migrations
1.473e+12 -7.0% 1.369e+12 perf-stat.dTLB-loads
0.07 ± 13% +0.0 0.09 ± 6% perf-stat.dTLB-store-miss-rate%
7.83e+08 ± 13% +15.6% 9.049e+08 ± 6% perf-stat.dTLB-store-misses
1.092e+12 -6.8% 1.017e+12 perf-stat.dTLB-stores
1.153e+09 -10.1% 1.037e+09 perf-stat.iTLB-load-misses
2.66e+08 ± 4% -7.0% 2.474e+08 perf-stat.iTLB-loads
2.994e+12 -7.8% 2.761e+12 perf-stat.instructions
0.08 -7.8% 0.08 perf-stat.ipc
5456 -2.0% 5348 perf-stat.path-length
2.62 -0.1 2.49 perf-profile.calltrace.cycles-pp.tcp_write_xmit.__tcp_push_pending_frames.tcp_rcv_established.tcp_v4_do_rcv.tcp_v4_rcv
2.64 -0.1 2.51 perf-profile.calltrace.cycles-pp.__tcp_push_pending_frames.tcp_rcv_established.tcp_v4_do_rcv.tcp_v4_rcv.ip_local_deliver_finish
2.83 -0.1 2.73 perf-profile.calltrace.cycles-pp.__free_pages_ok.skb_release_data.__kfree_skb.tcp_recvmsg.inet_recvmsg
3.64 -0.1 3.54 perf-profile.calltrace.cycles-pp.__kfree_skb.tcp_recvmsg.inet_recvmsg.__sys_recvfrom.__x64_sys_recvfrom
3.27 -0.1 3.18 perf-profile.calltrace.cycles-pp.skb_release_data.__kfree_skb.tcp_recvmsg.inet_recvmsg.__sys_recvfrom
98.03 +0.1 98.11 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe
97.89 +0.1 97.96 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.44 ± 58% +0.3 0.71 ± 5% perf-profile.calltrace.cycles-pp.smp_apic_timer_interrupt.apic_timer_interrupt.copy_user_enhanced_fast_string.copyout.copy_page_to_iter
2.92 ± 6% +0.4 3.29 ± 4% perf-profile.calltrace.cycles-pp.apic_timer_interrupt.copy_user_enhanced_fast_string.copyout.copy_page_to_iter.skb_copy_datagram_iter
0.00 +0.5 0.55 ± 6% perf-profile.calltrace.cycles-pp.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt.copy_user_enhanced_fast_string.copyout
3.64 -0.1 3.52 perf-profile.children.cycles-pp.tcp_write_xmit
3.60 -0.1 3.48 perf-profile.children.cycles-pp.__tcp_push_pending_frames
2.84 -0.1 2.74 perf-profile.children.cycles-pp.__free_pages_ok
4.08 -0.1 4.00 perf-profile.children.cycles-pp.__kfree_skb
0.80 ± 2% -0.1 0.74 ± 3% perf-profile.children.cycles-pp.__entry_SYSCALL_64_trampoline
0.23 ± 4% -0.0 0.20 ± 5% perf-profile.children.cycles-pp.__sk_mem_schedule
0.22 ± 4% -0.0 0.19 ± 5% perf-profile.children.cycles-pp.__sk_mem_raise_allocated
0.06 -0.0 0.04 ± 57% perf-profile.children.cycles-pp.tcp_release_cb
0.08 ± 6% -0.0 0.06 ± 15% perf-profile.children.cycles-pp.__tcp_select_window
0.23 +0.0 0.24 ± 2% perf-profile.children.cycles-pp.__tcp_send_ack
0.06 ± 11% +0.0 0.08 ± 5% perf-profile.children.cycles-pp.___perf_sw_event
0.06 ± 14% +0.0 0.09 ± 13% perf-profile.children.cycles-pp.tcp_write_timer_handler
0.12 ± 7% +0.0 0.15 ± 5% perf-profile.children.cycles-pp.update_curr
0.06 ± 11% +0.0 0.09 ± 17% perf-profile.children.cycles-pp.call_timer_fn
0.17 ± 4% +0.0 0.20 ± 3% perf-profile.children.cycles-pp.___slab_alloc
0.18 ± 4% +0.0 0.21 ± 3% perf-profile.children.cycles-pp.__slab_alloc
0.05 ± 58% +0.0 0.08 ± 15% perf-profile.children.cycles-pp.tcp_write_timer
0.04 ± 58% +0.0 0.08 ± 16% perf-profile.children.cycles-pp.tcp_send_loss_probe
0.32 ± 3% +0.0 0.35 perf-profile.children.cycles-pp.kmem_cache_alloc_node
0.14 ± 7% +0.0 0.19 ± 16% perf-profile.children.cycles-pp.preempt_schedule_common
0.21 ± 12% +0.1 0.27 ± 6% perf-profile.children.cycles-pp.task_tick_fair
0.00 +0.1 0.06 ± 11% perf-profile.children.cycles-pp.__tcp_retransmit_skb
0.51 ± 3% +0.1 0.57 ± 6% perf-profile.children.cycles-pp.__sched_text_start
1.61 +0.1 1.68 ± 2% perf-profile.children.cycles-pp.__release_sock
1.06 ± 3% +0.1 1.14 ± 2% perf-profile.children.cycles-pp.tcp_ack
0.28 ± 9% +0.1 0.36 ± 4% perf-profile.children.cycles-pp.scheduler_tick
98.09 +0.1 98.18 perf-profile.children.cycles-pp.do_syscall_64
98.23 +0.1 98.32 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
0.49 ± 8% +0.1 0.58 ± 5% perf-profile.children.cycles-pp.update_process_times
0.50 ± 8% +0.1 0.61 ± 6% perf-profile.children.cycles-pp.tick_sched_handle
0.54 ± 9% +0.1 0.67 ± 5% perf-profile.children.cycles-pp.tick_sched_timer
0.79 ± 8% +0.1 0.93 ± 3% perf-profile.children.cycles-pp.__hrtimer_run_queues
0.93 ± 9% +0.2 1.09 ± 2% perf-profile.children.cycles-pp.hrtimer_interrupt
1.13 ± 10% +0.2 1.37 ± 4% perf-profile.children.cycles-pp.smp_apic_timer_interrupt
2.51 ± 6% +0.4 2.87 ± 3% perf-profile.children.cycles-pp.apic_timer_interrupt
70.21 +0.4 70.63 perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
1.61 -0.1 1.49 ± 2% perf-profile.self.cycles-pp.copy_page_to_iter
0.78 ± 2% -0.1 0.72 ± 3% perf-profile.self.cycles-pp.__entry_SYSCALL_64_trampoline
1.37 -0.1 1.32 perf-profile.self.cycles-pp.__free_pages_ok
0.21 ± 5% -0.0 0.18 ± 4% perf-profile.self.cycles-pp.__sk_mem_raise_allocated
0.65 ± 2% -0.0 0.62 perf-profile.self.cycles-pp.free_one_page
0.41 ± 2% -0.0 0.39 ± 4% perf-profile.self.cycles-pp.skb_copy_datagram_iter
0.08 ± 6% -0.0 0.06 ± 15% perf-profile.self.cycles-pp.__tcp_select_window
0.10 ± 5% -0.0 0.08 ± 8% perf-profile.self.cycles-pp.import_single_range
0.14 ± 5% +0.0 0.16 ± 5% perf-profile.self.cycles-pp.___slab_alloc
0.19 ± 3% +0.0 0.21 ± 3% perf-profile.self.cycles-pp.kmem_cache_alloc_node
0.15 ± 4% +0.0 0.17 ± 4% perf-profile.self.cycles-pp.__might_sleep
0.03 ±100% +0.0 0.07 ± 13% perf-profile.self.cycles-pp.___perf_sw_event
***************************************************************************************************
lkp-u410: 4 threads Intel(R) Core(TM) i5-3317U CPU @ 1.70GHz with 4G memory
=========================================================================================
cluster/compiler/cpufreq_governor/ip/kconfig/nr_threads/rootfs/runtime/tbox_group/test/testcase/ucode:
cs-localhost/gcc-7/performance/ipv4/x86_64-rhel-7.2/200%/debian-x86_64-2018-04-03.cgz/900s/lkp-u410/TCP_MAERTS/netperf/0x20
commit:
3ff6cde846 ("hns3: Another build fix.")
a337531b94 ("tcp: up initial rmem to 128KB and SYN rwin to around 64KB")
3ff6cde846857d45 a337531b942bd8a03e7052444d
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
4:4 -100% :4 dmesg.RIP:intel_modeset_init[i915]
4:4 -100% :4 dmesg.WARNING:at_drivers/gpu/drm/i915/intel_display.c:#intel_modeset_init[i915]
2:4 -3% 2:4 perf-profile.children.cycles-pp.schedule_timeout
%stddev %change %stddev
\ | \
3879 -3.2% 3753 netperf.Throughput_Mbps
31036 -3.2% 30030 netperf.Throughput_total_Mbps
2463 +3.6% 2552 netperf.time.maximum_resident_set_size
2499 +7.5% 2685 netperf.time.minor_page_faults
24.96 -14.8% 21.28 ± 8% netperf.time.user_time
543040 ± 13% -15.9% 456816 ± 2% netperf.time.voluntary_context_switches
2.131e+08 -3.2% 2.062e+08 netperf.workload
21274 +3.3% 21986 interrupts.CAL:Function_call_interrupts
826.00 ± 6% -27.1% 602.00 ± 23% slabinfo.skbuff_head_cache.active_objs
3904 ± 2% -4.5% 3728 vmstat.system.cs
56.50 ± 2% +8.8% 61.50 ± 5% turbostat.CoreTmp
56.75 ± 2% +8.4% 61.50 ± 5% turbostat.PkgTmp
4224 ±173% +294.2% 16653 ± 52% sched_debug.cfs_rq:/.spread0.avg
110.92 ± 8% -22.2% 86.34 ± 10% sched_debug.cfs_rq:/.util_avg.stddev
896147 ± 3% -11.3% 795033 ± 4% sched_debug.cpu.avg_idle.max
162406 ± 9% -26.1% 119960 ± 21% sched_debug.cpu.avg_idle.stddev
59886 ± 3% -3.8% 57590 proc-vmstat.nr_dirty_background_threshold
119920 ± 3% -3.8% 115322 proc-vmstat.nr_dirty_threshold
628429 ± 3% -3.7% 605425 proc-vmstat.nr_free_pages
1.071e+08 -3.2% 1.036e+08 proc-vmstat.numa_hit
1.071e+08 -3.2% 1.036e+08 proc-vmstat.numa_local
8.503e+08 -3.2% 8.229e+08 proc-vmstat.pgfree
2.265e+11 -5.7% 2.135e+11 perf-stat.branch-instructions
3.01 -0.1 2.94 perf-stat.branch-miss-rate%
6.809e+09 -7.8% 6.279e+09 ± 3% perf-stat.branch-misses
30.13 +2.0 32.13 perf-stat.cache-miss-rate%
5.149e+10 +3.2% 5.314e+10 perf-stat.cache-misses
1.709e+11 -3.2% 1.654e+11 perf-stat.cache-references
3532029 ± 2% -4.5% 3373137 perf-stat.context-switches
7.31 +6.2% 7.76 perf-stat.cpi
5.633e+09 ± 2% -5.8% 5.308e+09 perf-stat.dTLB-load-misses
7.264e+11 -4.1% 6.964e+11 perf-stat.dTLB-loads
6.35e+11 -4.0% 6.097e+11 perf-stat.dTLB-stores
4.029e+08 -7.1% 3.743e+08 ± 2% perf-stat.iTLB-load-misses
1.157e+12 -5.7% 1.091e+12 perf-stat.instructions
0.14 -5.8% 0.13 perf-stat.ipc
5426 -2.5% 5289 perf-stat.path-length
1.16 ± 6% -0.2 0.99 ± 3% perf-profile.calltrace.cycles-pp.__entry_SYSCALL_64_trampoline
0.99 ± 6% -0.1 0.88 ± 10% perf-profile.calltrace.cycles-pp.tcp_v4_do_rcv.__release_sock.release_sock.tcp_recvmsg.inet_recvmsg
96.58 +0.3 96.87 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe
26.12 ± 2% +1.3 27.40 perf-profile.calltrace.cycles-pp.copy_user_enhanced_fast_string.copyin._copy_from_iter_full.tcp_sendmsg_locked.tcp_sendmsg
26.39 ± 2% +1.3 27.69 perf-profile.calltrace.cycles-pp.copyin._copy_from_iter_full.tcp_sendmsg_locked.tcp_sendmsg.sock_sendmsg
27.12 ± 3% +1.4 28.48 perf-profile.calltrace.cycles-pp._copy_from_iter_full.tcp_sendmsg_locked.tcp_sendmsg.sock_sendmsg.__sys_sendto
41.73 ± 2% +1.7 43.40 ± 2% perf-profile.calltrace.cycles-pp.tcp_sendmsg_locked.tcp_sendmsg.sock_sendmsg.__sys_sendto.__x64_sys_sendto
43.17 ± 2% +1.7 44.87 ± 2% perf-profile.calltrace.cycles-pp.tcp_sendmsg.sock_sendmsg.__sys_sendto.__x64_sys_sendto.do_syscall_64
43.75 ± 2% +1.8 45.51 perf-profile.calltrace.cycles-pp.sock_sendmsg.__sys_sendto.__x64_sys_sendto.do_syscall_64.entry_SYSCALL_64_after_hwframe
44.88 ± 2% +1.8 46.63 perf-profile.calltrace.cycles-pp.__x64_sys_sendto.do_syscall_64.entry_SYSCALL_64_after_hwframe
44.73 ± 2% +1.8 46.53 perf-profile.calltrace.cycles-pp.__sys_sendto.__x64_sys_sendto.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.38 ± 6% -0.2 1.20 ± 3% perf-profile.children.cycles-pp.__entry_SYSCALL_64_trampoline
0.42 ± 9% -0.1 0.31 ± 9% perf-profile.children.cycles-pp.tcp_queue_rcv
0.79 ± 6% -0.1 0.68 ± 5% perf-profile.children.cycles-pp.ktime_get_with_offset
0.32 ± 12% -0.1 0.21 ± 33% perf-profile.children.cycles-pp.scheduler_tick
0.35 ± 12% -0.1 0.26 ± 11% perf-profile.children.cycles-pp.tcp_try_coalesce
0.29 ± 10% -0.1 0.20 ± 17% perf-profile.children.cycles-pp.skb_try_coalesce
0.88 ± 2% -0.1 0.79 ± 4% perf-profile.children.cycles-pp.tcp_mstamp_refresh
0.32 ± 9% -0.1 0.26 ± 18% perf-profile.children.cycles-pp.ip_local_out
0.41 ± 3% +0.0 0.45 ± 4% perf-profile.children.cycles-pp.selinux_ip_postroute
0.03 ±102% +0.1 0.09 ± 24% perf-profile.children.cycles-pp.lock_timer_base
0.00 +0.1 0.08 ± 29% perf-profile.children.cycles-pp.raw_local_deliver
0.57 ± 4% +0.1 0.66 ± 7% perf-profile.children.cycles-pp.tcp_event_new_data_sent
0.20 ± 28% +0.1 0.29 ± 21% perf-profile.children.cycles-pp._cond_resched
64.27 +0.5 64.78 perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
26.41 ± 2% +1.3 27.70 perf-profile.children.cycles-pp.copyin
27.16 ± 3% +1.3 28.50 perf-profile.children.cycles-pp._copy_from_iter_full
41.76 ± 2% +1.7 43.44 ± 2% perf-profile.children.cycles-pp.tcp_sendmsg_locked
43.19 ± 2% +1.7 44.88 ± 2% perf-profile.children.cycles-pp.tcp_sendmsg
44.88 ± 2% +1.8 46.65 perf-profile.children.cycles-pp.__x64_sys_sendto
43.75 ± 2% +1.8 45.51 perf-profile.children.cycles-pp.sock_sendmsg
44.74 ± 2% +1.8 46.54 perf-profile.children.cycles-pp.__sys_sendto
1.21 ± 8% -0.2 0.99 ± 5% perf-profile.self.cycles-pp.copy_page_to_iter
1.32 ± 6% -0.2 1.15 ± 3% perf-profile.self.cycles-pp.__entry_SYSCALL_64_trampoline
0.29 ± 9% -0.1 0.20 ± 18% perf-profile.self.cycles-pp.skb_try_coalesce
0.50 ± 9% -0.1 0.42 ± 10% perf-profile.self.cycles-pp.ktime_get_with_offset
0.19 ± 14% -0.1 0.12 ± 10% perf-profile.self.cycles-pp.__local_bh_enable_ip
0.08 ± 10% -0.0 0.03 ±102% perf-profile.self.cycles-pp.selinux_sock_rcv_skb_compat
0.13 ± 3% -0.0 0.08 ± 57% perf-profile.self.cycles-pp.__x64_sys_sendto
0.07 ± 12% -0.0 0.03 ±100% perf-profile.self.cycles-pp._raw_spin_unlock_irqrestore
0.11 ± 11% -0.0 0.08 ± 22% perf-profile.self.cycles-pp.__sys_recvfrom
0.05 ± 61% +0.0 0.09 ± 11% perf-profile.self.cycles-pp.selinux_ip_postroute
0.09 ± 20% +0.1 0.15 ± 31% perf-profile.self.cycles-pp.rcu_all_qs
0.00 +0.1 0.07 ± 28% perf-profile.self.cycles-pp.raw_local_deliver
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-4.19.0-rc5-00886-ga337531" of type "text/plain" (167752 bytes)
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