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Message-ID: <CANn89iLG-WD9m4y--uJhgNGBoFb=Ved+X3JFTeH7e9_jUt6Jbw@mail.gmail.com>
Date: Thu, 11 Dec 2025 17:15:51 +0100
From: Eric Dumazet <edumazet@...gle.com>
To: kernel test robot <oliver.sang@...el.com>
Cc: oe-lkp@...ts.linux.dev, lkp@...el.com, linux-kernel@...r.kernel.org, 
	Paolo Abeni <pabeni@...hat.com>, Jason Xing <kerneljasonxing@...il.com>, 
	Kuniyuki Iwashima <kuniyu@...gle.com>, netdev@...r.kernel.org
Subject: Re: [linus:master] [net] 5628f3fe3b: sockperf.throughput.UDP.msg_per_sec
 20.1% regression

On Thu, Dec 11, 2025 at 3:31 PM kernel test robot <oliver.sang@...el.com> wrote:
>
>
>
> Hello,
>
> kernel test robot noticed a 20.1% regression of sockperf.throughput.UDP.msg_per_sec on:
>
>
> commit: 5628f3fe3b16114e8424bbfcf0594caef8958a06 ("net: add NUMA awareness to skb_attempt_defer_free()")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
>
> [still regression on linus/master      cb015814f8b6eebcbb8e46e111d108892c5e6821]
> [still regression on linux-next/master c75caf76ed86bbc15a72808f48f8df1608a0886c]
>
> testcase: sockperf
> config: x86_64-rhel-9.4
> compiler: gcc-14
> test machine: 256 threads 2 sockets GENUINE INTEL(R) XEON(R) (Sierra Forest) with 128G memory

How many NUMA nodes are present ?

> parameters:
>
>         runtime: 600s
>         cluster: cs-localhost
>         msg_size: 1472b
>         cpufreq_governor: performance
>
>

Is it a test with a single sender and receiver ?

> In addition to that, the commit also has significant impact on the following tests:
>
> +------------------+---------------------------------------------------------------------------------+
> | testcase: change | netperf: netperf.Throughput_Mbps  6.0% regression                               |
> | test machine     | 256 threads 2 sockets GENUINE INTEL(R) XEON(R) (Sierra Forest) with 128G memory |
> | test parameters  | cluster=cs-localhost                                                            |
> |                  | cpufreq_governor=performance                                                    |
> |                  | ip=ipv4                                                                         |
> |                  | nr_threads=1                                                                    |
> |                  | runtime=300s                                                                    |
> |                  | test=UDP_STREAM                                                                 |
> +------------------+---------------------------------------------------------------------------------+
>
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <oliver.sang@...el.com>
> | Closes: https://lore.kernel.org/oe-lkp/202512112119.5b9829a-lkp@intel.com
>
>
> Details are as below:
> -------------------------------------------------------------------------------------------------->
>
>
> The kernel config and materials to reproduce are available at:
> https://download.01.org/0day-ci/archive/20251211/202512112119.5b9829a-lkp@intel.com
>
> =========================================================================================
> cluster/compiler/cpufreq_governor/kconfig/msg_size/rootfs/runtime/tbox_group/testcase:
>   cs-localhost/gcc-14/performance/x86_64-rhel-9.4/1472b/debian-13-x86_64-20250902.cgz/600s/lkp-srf-2sp1/sockperf
>
> commit:
>   844c9db7f7 ("net: use llist for sd->defer_list")
>   5628f3fe3b ("net: add NUMA awareness to skb_attempt_defer_free()")
>
> 844c9db7f7f5fe1b 5628f3fe3b16114e8424bbfcf05
> ---------------- ---------------------------
>          %stddev     %change         %stddev
>              \          |                \
>       0.10            +0.0        0.12        mpstat.cpu.all.soft%
>   16915992 ą  6%     -16.0%   14216230 ą  6%  turbostat.IRQ
>     207555            +4.0%     215887        vmstat.system.cs
>      28663 ą  6%     -15.2%      24304 ą  6%  vmstat.system.in
>   11048577            -1.6%   10873254        proc-vmstat.numa_hit
>   10782437            -1.6%   10607299        proc-vmstat.numa_local
>   75337098            -1.9%   73920567        proc-vmstat.pgalloc_normal
>   75257799            -1.9%   73843141        proc-vmstat.pgfree
>       2564            -2.0%       2514        sockperf.throughput.TCP.BandWidth_MBps
>    1826630            -2.0%    1790940        sockperf.throughput.TCP.msg_per_sec
>     941.44           -20.1%     751.96        sockperf.throughput.UDP.BandWidth_MBps
>     670636           -20.1%     535658        sockperf.throughput.UDP.msg_per_sec
>       6259 ą  3%     +44.0%       9013 ą 12%  sockperf.time.involuntary_context_switches
>      66.00            -3.0%      64.00        sockperf.time.percent_of_cpu_this_job_got
>  7.698e+08            +3.3%  7.955e+08        perf-stat.i.branch-instructions
>     208310            +4.0%     216675        perf-stat.i.context-switches
>     298.79            +6.0%     316.62        perf-stat.i.cpu-migrations
>   3.92e+09            +4.1%  4.081e+09        perf-stat.i.instructions
>       0.79            +3.9%       0.83        perf-stat.i.ipc
>       0.68 ą  3%      +7.5%       0.73        perf-stat.i.metric.K/sec
>       0.11            -4.4%       0.10 ą  2%  perf-stat.overall.MPKI
>       1.19            -3.7%       1.14        perf-stat.overall.cpi
>       0.84            +3.8%       0.87        perf-stat.overall.ipc
>  7.681e+08            +3.3%  7.937e+08        perf-stat.ps.branch-instructions
>     207867            +4.0%     216199        perf-stat.ps.context-switches
>     298.39            +6.0%     316.29        perf-stat.ps.cpu-migrations
>  3.911e+09            +4.1%  4.072e+09        perf-stat.ps.instructions
>  2.419e+12            +4.1%  2.519e+12        perf-stat.total.instructions
>       1.51 ą  5%      -0.5        1.06 ą 26%  perf-profile.calltrace.cycles-pp.dev_hard_start_xmit.__dev_queue_xmit.ip_finish_output2.ip_output.ip_send_skb
>       1.46 ą  5%      -0.4        1.03 ą 26%  perf-profile.calltrace.cycles-pp.xmit_one.dev_hard_start_xmit.__dev_queue_xmit.ip_finish_output2.ip_output
>       1.26 ą  7%      -0.4        0.88 ą 28%  perf-profile.calltrace.cycles-pp.loopback_xmit.xmit_one.dev_hard_start_xmit.__dev_queue_xmit.ip_finish_output2
>       6.40 ą  4%      -0.3        6.06 ą  2%  perf-profile.calltrace.cycles-pp.udpv6_recvmsg.inet6_recvmsg.sock_recvmsg.__sys_recvfrom.__x64_sys_recvfrom
>       6.42 ą  4%      -0.3        6.09 ą  2%  perf-profile.calltrace.cycles-pp.inet6_recvmsg.sock_recvmsg.__sys_recvfrom.__x64_sys_recvfrom.do_syscall_64
>       1.06 ą 17%      -0.3        0.75 ą 31%  perf-profile.calltrace.cycles-pp.alloc_skb_with_frags.sock_alloc_send_pskb.__ip_append_data.ip_make_skb.udp_sendmsg
>       2.37 ą  6%      -0.3        2.06 ą  3%  perf-profile.calltrace.cycles-pp.ip_make_skb.udp_sendmsg.udpv6_sendmsg.__sys_sendto.__x64_sys_sendto
>       2.54 ą  9%      -0.3        2.25 ą  4%  perf-profile.calltrace.cycles-pp.schedule_timeout.__skb_wait_for_more_packets.__skb_recv_udp.udpv6_recvmsg.inet6_recvmsg
>       0.69 ą  2%      -0.1        0.63 ą  5%  perf-profile.calltrace.cycles-pp.__wrgsbase_inactive
>       6.90 ą  4%      +0.8        7.66 ą  3%  perf-profile.calltrace.cycles-pp.udp_send_skb.udp_sendmsg.__sys_sendto.__x64_sys_sendto.do_syscall_64
>       9.88 ą  2%      +0.8       10.64 ą  4%  perf-profile.calltrace.cycles-pp.udp_sendmsg.udpv6_sendmsg.__sys_sendto.__x64_sys_sendto.do_syscall_64
>       9.94 ą  2%      +0.8       10.72 ą  4%  perf-profile.calltrace.cycles-pp.udpv6_sendmsg.__sys_sendto.__x64_sys_sendto.do_syscall_64.entry_SYSCALL_64_after_hwframe
>       6.77 ą  4%      +0.8        7.58 ą  3%  perf-profile.calltrace.cycles-pp.ip_send_skb.udp_send_skb.udp_sendmsg.__sys_sendto.__x64_sys_sendto
>       6.65 ą  4%      +0.8        7.49 ą  3%  perf-profile.calltrace.cycles-pp.ip_output.ip_send_skb.udp_send_skb.udp_sendmsg.__sys_sendto
>       6.77 ą  2%      +1.0        7.77 ą  5%  perf-profile.calltrace.cycles-pp.udp_send_skb.udp_sendmsg.udpv6_sendmsg.__sys_sendto.__x64_sys_sendto
>       6.68 ą  2%      +1.0        7.69 ą  5%  perf-profile.calltrace.cycles-pp.ip_send_skb.udp_send_skb.udp_sendmsg.udpv6_sendmsg.__sys_sendto
>       6.58 ą  2%      +1.0        7.59 ą  5%  perf-profile.calltrace.cycles-pp.ip_output.ip_send_skb.udp_send_skb.udp_sendmsg.udpv6_sendmsg
>      20.94            +1.3       22.20 ą  3%  perf-profile.calltrace.cycles-pp.__x64_sys_sendto.do_syscall_64.entry_SYSCALL_64_after_hwframe
>      20.92            +1.3       22.19 ą  3%  perf-profile.calltrace.cycles-pp.__sys_sendto.__x64_sys_sendto.do_syscall_64.entry_SYSCALL_64_after_hwframe
>      13.07 ą  2%      +1.9       14.99 ą  4%  perf-profile.calltrace.cycles-pp.ip_finish_output2.ip_output.ip_send_skb.udp_send_skb.udp_sendmsg
>      12.72 ą  2%      +2.0       14.69 ą  4%  perf-profile.calltrace.cycles-pp.__dev_queue_xmit.ip_finish_output2.ip_output.ip_send_skb.udp_send_skb
>      10.50 ą  2%      +2.3       12.85 ą  4%  perf-profile.calltrace.cycles-pp.__local_bh_enable_ip.__dev_queue_xmit.ip_finish_output2.ip_output.ip_send_skb
>      10.39 ą  2%      +2.4       12.76 ą  4%  perf-profile.calltrace.cycles-pp.do_softirq.__local_bh_enable_ip.__dev_queue_xmit.ip_finish_output2.ip_output
>      10.29 ą  2%      +2.4       12.70 ą  4%  perf-profile.calltrace.cycles-pp.handle_softirqs.do_softirq.__local_bh_enable_ip.__dev_queue_xmit.ip_finish_output2
>       9.77 ą  2%      +2.5       12.22 ą  4%  perf-profile.calltrace.cycles-pp.net_rx_action.handle_softirqs.do_softirq.__local_bh_enable_ip.__dev_queue_xmit
>       0.00            +4.1        4.08 ą  5%  perf-profile.calltrace.cycles-pp.skb_defer_free_flush.net_rx_action.handle_softirqs.do_softirq.__local_bh_enable_ip
>       4.79 ą  3%      -0.5        4.24 ą  5%  perf-profile.children.cycles-pp.ip_make_skb
>       6.40 ą  4%      -0.3        6.06 ą  2%  perf-profile.children.cycles-pp.udpv6_recvmsg
>       6.43 ą  4%      -0.3        6.09 ą  2%  perf-profile.children.cycles-pp.inet6_recvmsg
>       1.51 ą  5%      -0.3        1.22 ą  7%  perf-profile.children.cycles-pp.dev_hard_start_xmit
>       1.46 ą  5%      -0.3        1.18 ą  7%  perf-profile.children.cycles-pp.xmit_one
>       0.95 ą  6%      -0.2        0.77 ą 11%  perf-profile.children.cycles-pp.sock_wfree
>       3.02 ą  2%      -0.2        2.85 ą  2%  perf-profile.children.cycles-pp.__ip_append_data
>       1.26 ą  7%      -0.2        1.11 ą  7%  perf-profile.children.cycles-pp.loopback_xmit
>       0.20 ą 11%      -0.1        0.10 ą 11%  perf-profile.children.cycles-pp.__enqueue_entity
>       0.52 ą  3%      -0.1        0.43 ą 11%  perf-profile.children.cycles-pp.arch_exit_to_user_mode_prepare
>       0.22 ą  7%      -0.1        0.12 ą 21%  perf-profile.children.cycles-pp.switch_fpu_return
>       0.22 ą 12%      -0.1        0.13 ą 12%  perf-profile.children.cycles-pp.ip_setup_cork
>       0.09 ą 11%      -0.1        0.02 ą 99%  perf-profile.children.cycles-pp.tick_nohz_tick_stopped
>       0.75 ą  2%      -0.1        0.69 ą  4%  perf-profile.children.cycles-pp.__wrgsbase_inactive
>       0.26 ą 13%      -0.1        0.20 ą 17%  perf-profile.children.cycles-pp.udp4_lib_lookup2
>       0.08 ą 20%      -0.1        0.04 ą 71%  perf-profile.children.cycles-pp.__ip_finish_output
>       0.25 ą 11%      -0.0        0.20 ą 15%  perf-profile.children.cycles-pp.__netif_receive_skb_core
>       0.17 ą 13%      -0.0        0.13 ą  9%  perf-profile.children.cycles-pp.ipv4_mtu
>       0.21 ą 11%      -0.0        0.16 ą 10%  perf-profile.children.cycles-pp.__mkroute_output
>       0.09 ą 15%      -0.0        0.05 ą 52%  perf-profile.children.cycles-pp.vruntime_eligible
>       0.10 ą  9%      -0.0        0.07 ą 12%  perf-profile.children.cycles-pp.update_min_vruntime
>       0.16 ą 12%      +0.0        0.20 ą  8%  perf-profile.children.cycles-pp.wakeup_preempt
>       0.01 ą223%      +0.1        0.10 ą 15%  perf-profile.children.cycles-pp.tick_nohz_get_next_hrtimer
>       9.94 ą  2%      +0.8       10.72 ą  4%  perf-profile.children.cycles-pp.udpv6_sendmsg
>       0.10 ą 11%      +0.9        1.01 ą  6%  perf-profile.children.cycles-pp._find_next_bit
>      20.93            +1.3       22.20 ą  3%  perf-profile.children.cycles-pp.__sys_sendto
>      20.94            +1.3       22.21 ą  3%  perf-profile.children.cycles-pp.__x64_sys_sendto
>      19.98            +1.3       21.26 ą  4%  perf-profile.children.cycles-pp.udp_sendmsg
>      13.68            +1.7       15.42 ą  4%  perf-profile.children.cycles-pp.udp_send_skb
>      13.46 ą  2%      +1.8       15.28 ą  4%  perf-profile.children.cycles-pp.ip_send_skb
>      13.28 ą  2%      +1.8       15.13 ą  4%  perf-profile.children.cycles-pp.ip_output
>      13.13 ą  2%      +1.9       15.04 ą  4%  perf-profile.children.cycles-pp.ip_finish_output2
>      12.78 ą  2%      +2.0       14.74 ą  4%  perf-profile.children.cycles-pp.__dev_queue_xmit
>      10.71 ą  3%      +2.3       13.04 ą  4%  perf-profile.children.cycles-pp.__local_bh_enable_ip
>       9.84 ą  3%      +2.4       12.28 ą  4%  perf-profile.children.cycles-pp.net_rx_action
>      13.63            +2.5       16.11 ą  3%  perf-profile.children.cycles-pp.do_softirq
>      14.05            +2.5       16.57 ą  3%  perf-profile.children.cycles-pp.handle_softirqs
>       0.00            +4.1        4.09 ą  5%  perf-profile.children.cycles-pp.skb_defer_free_flush
>       0.98 ą 13%      -0.9        0.08 ą 14%  perf-profile.self.cycles-pp.net_rx_action
>       0.94 ą  7%      -0.2        0.76 ą 12%  perf-profile.self.cycles-pp.sock_wfree
>       0.20 ą 16%      -0.1        0.06 ą 46%  perf-profile.self.cycles-pp.xmit_one
>       0.70 ą 10%      -0.1        0.58 ą  5%  perf-profile.self.cycles-pp.menu_select
>       0.20 ą  6%      -0.1        0.11 ą 20%  perf-profile.self.cycles-pp.switch_fpu_return
>       0.18 ą  9%      -0.1        0.10 ą 12%  perf-profile.self.cycles-pp.__enqueue_entity
>       0.70 ą  9%      -0.1        0.62 ą  5%  perf-profile.self.cycles-pp._raw_spin_lock_irqsave
>       0.43 ą 10%      -0.1        0.36 ą  7%  perf-profile.self.cycles-pp.__ip_append_data
>       0.30 ą 11%      -0.1        0.22 ą  8%  perf-profile.self.cycles-pp.dequeue_entity
>       0.35 ą 10%      -0.1        0.28 ą 11%  perf-profile.self.cycles-pp.sched_balance_newidle
>       0.13 ą  5%      -0.1        0.06 ą 48%  perf-profile.self.cycles-pp.__udp4_lib_rcv
>       0.41 ą  8%      -0.1        0.35 ą  9%  perf-profile.self.cycles-pp.cpuidle_idle_call
>       0.29 ą 15%      -0.1        0.22 ą  4%  perf-profile.self.cycles-pp.syscall_return_via_sysret
>       0.71            -0.1        0.65 ą  4%  perf-profile.self.cycles-pp.__wrgsbase_inactive
>       0.21 ą 13%      -0.1        0.15 ą 15%  perf-profile.self.cycles-pp.handle_softirqs
>       0.84 ą  2%      -0.0        0.79 ą  2%  perf-profile.self.cycles-pp.__switch_to
>       0.25 ą 11%      -0.0        0.20 ą 15%  perf-profile.self.cycles-pp.__netif_receive_skb_core
>       0.18 ą 21%      -0.0        0.13 ą 10%  perf-profile.self.cycles-pp.udp_send_skb
>       0.09 ą 12%      -0.0        0.04 ą 75%  perf-profile.self.cycles-pp.vruntime_eligible
>       0.16 ą 14%      -0.0        0.12 ą 10%  perf-profile.self.cycles-pp.ipv4_mtu
>       0.07 ą 24%      -0.0        0.04 ą 45%  perf-profile.self.cycles-pp.sock_recvmsg
>       0.24 ą 11%      +0.1        0.29 ą  3%  perf-profile.self.cycles-pp.udp_sendmsg
>       0.08 ą 16%      +0.1        0.15 ą  9%  perf-profile.self.cycles-pp.ttwu_do_activate
>       0.01 ą223%      +0.1        0.10 ą 15%  perf-profile.self.cycles-pp.tick_nohz_get_next_hrtimer
>       0.10 ą 15%      +0.9        0.98 ą  6%  perf-profile.self.cycles-pp._find_next_bit
>       0.00            +2.9        2.88 ą  7%  perf-profile.self.cycles-pp.skb_defer_free_flush
>
>
> ***************************************************************************************************
> lkp-srf-2sp1: 256 threads 2 sockets GENUINE INTEL(R) XEON(R) (Sierra Forest) with 128G memory
> =========================================================================================
> cluster/compiler/cpufreq_governor/ip/kconfig/nr_threads/rootfs/runtime/tbox_group/test/testcase:
>   cs-localhost/gcc-14/performance/ipv4/x86_64-rhel-9.4/1/debian-13-x86_64-20250902.cgz/300s/lkp-srf-2sp1/UDP_STREAM/netperf
>
> commit:
>   844c9db7f7 ("net: use llist for sd->defer_list")
>   5628f3fe3b ("net: add NUMA awareness to skb_attempt_defer_free()")
>
> 844c9db7f7f5fe1b 5628f3fe3b16114e8424bbfcf05
> ---------------- ---------------------------
>          %stddev     %change         %stddev
>              \          |                \
>   20600541 ą  3%     +14.1%   23500650 ą  2%  cpuidle..usage
>     214491 ą  5%     +11.5%     239155 ą  2%  meminfo.Shmem
>       0.11            +0.0        0.13 ą  2%  mpstat.cpu.all.soft%
>     107642 ą  4%     +17.1%     126046 ą  3%  vmstat.system.cs
>       0.04 ą  8%      +0.0        0.07        turbostat.C1%
>       0.46            +9.8%       0.50        turbostat.IPC
>       4284 ą 13%     +28.8%       5519 ą 10%  numa-meminfo.node0.PageTables
>       5684 ą 10%     -21.7%       4451 ą 11%  numa-meminfo.node1.PageTables
>     208697 ą  5%     +11.0%     231719 ą  2%  numa-meminfo.node1.Shmem
>       1073 ą 13%     +28.9%       1383 ą  9%  numa-vmstat.node0.nr_page_table_pages
>       1423 ą 10%     -21.7%       1114 ą 11%  numa-vmstat.node1.nr_page_table_pages
>      52145 ą  5%     +11.0%      57900 ą  2%  numa-vmstat.node1.nr_shmem
>      12387 ą  4%     -12.9%      10792 ą  4%  sched_debug.cfs_rq:/.avg_vruntime.avg
>      12387 ą  4%     -12.9%      10792 ą  4%  sched_debug.cfs_rq:/.min_vruntime.avg
>      64470 ą  3%     +16.0%      74816 ą  3%  sched_debug.cpu.nr_switches.avg
>       8.08 ą  5%     -12.6%       7.07 ą  3%  perf-sched.total_wait_and_delay.average.ms
>     197564 ą  5%     +13.5%     224145 ą  2%  perf-sched.total_wait_and_delay.count.ms
>       8.08 ą  5%     -12.6%       7.06 ą  3%  perf-sched.total_wait_time.average.ms
>       8.08 ą  5%     -12.6%       7.07 ą  3%  perf-sched.wait_and_delay.avg.ms.[unknown].[unknown].[unknown].[unknown].[unknown]
>     197564 ą  5%     +13.5%     224145 ą  2%  perf-sched.wait_and_delay.count.[unknown].[unknown].[unknown].[unknown].[unknown]
>       8.08 ą  5%     -12.6%       7.06 ą  3%  perf-sched.wait_time.avg.ms.[unknown].[unknown].[unknown].[unknown].[unknown]
>     224037            +3.1%     230892        proc-vmstat.nr_active_anon
>      53676 ą  4%     +11.5%      59861 ą  2%  proc-vmstat.nr_shmem
>     224037            +3.1%     230892        proc-vmstat.nr_zone_active_anon
>  1.129e+08            -5.9%  1.063e+08        proc-vmstat.numa_hit
>  1.127e+08            -5.9%   1.06e+08        proc-vmstat.numa_local
>  8.928e+08            -6.0%  8.394e+08        proc-vmstat.pgalloc_normal
>  8.927e+08            -6.0%  8.393e+08        proc-vmstat.pgfree
>     194605            -6.0%     182934        netperf.ThroughputBoth_Mbps
>     194605            -6.0%     182934        netperf.ThroughputBoth_total_Mbps
>      97220            -6.0%      91387        netperf.ThroughputRecv_Mbps
>      97220            -6.0%      91387        netperf.ThroughputRecv_total_Mbps
>      97384            -6.0%      91547        netperf.Throughput_Mbps
>      97384            -6.0%      91547        netperf.Throughput_total_Mbps
>      78.67            -6.8%      73.33        netperf.time.percent_of_cpu_this_job_got
>     232.75            -6.6%     217.32        netperf.time.system_time
>  1.114e+08            -6.0%  1.047e+08        netperf.workload
>  5.854e+08            +7.9%  6.313e+08        perf-stat.i.branch-instructions
>       0.60            -0.0        0.57        perf-stat.i.branch-miss-rate%
>    3570607            +2.7%    3668021        perf-stat.i.branch-misses
>     108376 ą  4%     +17.1%     126925 ą  3%  perf-stat.i.context-switches
>       2.29            -9.3%       2.08        perf-stat.i.cpi
>  3.086e+09            +8.7%  3.353e+09        perf-stat.i.instructions
>       0.44           +10.2%       0.49        perf-stat.i.ipc
>       0.61            -0.0        0.58        perf-stat.overall.branch-miss-rate%
>       2.24            -9.1%       2.04        perf-stat.overall.cpi
>       0.45           +10.0%       0.49        perf-stat.overall.ipc
>       8344           +15.6%       9643        perf-stat.overall.path-length
>  5.833e+08            +7.9%  6.292e+08        perf-stat.ps.branch-instructions
>    3558414            +2.8%    3656824        perf-stat.ps.branch-misses
>     108014 ą  4%     +17.1%     126500 ą  3%  perf-stat.ps.context-switches
>  3.075e+09            +8.7%  3.341e+09        perf-stat.ps.instructions
>  9.295e+11            +8.6%   1.01e+12        perf-stat.total.instructions
>      29.40            -1.8       27.59        perf-profile.calltrace.cycles-pp.ip_make_skb.udp_sendmsg.__sys_sendto.__x64_sys_sendto.do_syscall_64
>      28.64            -1.8       26.86        perf-profile.calltrace.cycles-pp.__ip_append_data.ip_make_skb.udp_sendmsg.__sys_sendto.__x64_sys_sendto
>      25.28            -1.7       23.60        perf-profile.calltrace.cycles-pp.ip_generic_getfrag.__ip_append_data.ip_make_skb.udp_sendmsg.__sys_sendto
>      25.91            -1.6       24.27        perf-profile.calltrace.cycles-pp._copy_to_iter.__skb_datagram_iter.skb_copy_datagram_iter.udp_recvmsg.inet_recvmsg
>      33.24            -1.6       31.66        perf-profile.calltrace.cycles-pp.__x64_sys_recvfrom.do_syscall_64.entry_SYSCALL_64_after_hwframe.recv_omni.process_requests
>      33.22            -1.6       31.64        perf-profile.calltrace.cycles-pp.__sys_recvfrom.__x64_sys_recvfrom.do_syscall_64.entry_SYSCALL_64_after_hwframe.recv_omni
>      31.95            -1.5       30.42        perf-profile.calltrace.cycles-pp.sock_recvmsg.__sys_recvfrom.__x64_sys_recvfrom.do_syscall_64.entry_SYSCALL_64_after_hwframe
>      33.73            -1.5       32.21        perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.recv_omni.process_requests.spawn_child.accept_connection
>      31.86            -1.5       30.35        perf-profile.calltrace.cycles-pp.inet_recvmsg.sock_recvmsg.__sys_recvfrom.__x64_sys_recvfrom.do_syscall_64
>      33.68            -1.5       32.17        perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.recv_omni.process_requests.spawn_child
>      31.84            -1.5       30.33        perf-profile.calltrace.cycles-pp.udp_recvmsg.inet_recvmsg.sock_recvmsg.__sys_recvfrom.__x64_sys_recvfrom
>      24.73            -1.5       23.26        perf-profile.calltrace.cycles-pp._copy_from_iter.ip_generic_getfrag.__ip_append_data.ip_make_skb.udp_sendmsg
>      26.98            -1.5       25.52        perf-profile.calltrace.cycles-pp.skb_copy_datagram_iter.udp_recvmsg.inet_recvmsg.sock_recvmsg.__sys_recvfrom
>      26.96            -1.5       25.50        perf-profile.calltrace.cycles-pp.__skb_datagram_iter.skb_copy_datagram_iter.udp_recvmsg.inet_recvmsg.sock_recvmsg
>      35.15            -1.4       33.74        perf-profile.calltrace.cycles-pp.recv_omni.process_requests.spawn_child.accept_connection.accept_connections
>       0.66 ą  5%      -0.3        0.35 ą 71%  perf-profile.calltrace.cycles-pp.skb_attempt_defer_free.udp_recvmsg.inet_recvmsg.sock_recvmsg.__sys_recvfrom
>       0.71 ą  5%      +0.2        0.91 ą  4%  perf-profile.calltrace.cycles-pp.sched_ttwu_pending.__flush_smp_call_function_queue.flush_smp_call_function_queue.do_idle.cpu_startup_entry
>       1.06 ą  9%      +0.2        1.26 ą  6%  perf-profile.calltrace.cycles-pp.__schedule.schedule.schedule_timeout.__skb_wait_for_more_packets.__skb_recv_udp
>       1.09 ą  9%      +0.2        1.29 ą  6%  perf-profile.calltrace.cycles-pp.schedule.schedule_timeout.__skb_wait_for_more_packets.__skb_recv_udp.udp_recvmsg
>       1.14 ą  8%      +0.2        1.35 ą  6%  perf-profile.calltrace.cycles-pp.schedule_timeout.__skb_wait_for_more_packets.__skb_recv_udp.udp_recvmsg.inet_recvmsg
>       1.28 ą  7%      +0.3        1.56 ą  7%  perf-profile.calltrace.cycles-pp.__skb_wait_for_more_packets.__skb_recv_udp.udp_recvmsg.inet_recvmsg.sock_recvmsg
>       0.98 ą 13%      +0.4        1.36 ą  8%  perf-profile.calltrace.cycles-pp.__flush_smp_call_function_queue.flush_smp_call_function_queue.do_idle.cpu_startup_entry.start_secondary
>       1.36 ą  5%      +0.4        1.80 ą  4%  perf-profile.calltrace.cycles-pp.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_sync_key.sock_def_readable
>       1.36 ą  5%      +0.4        1.80 ą  4%  perf-profile.calltrace.cycles-pp.autoremove_wake_function.__wake_up_common.__wake_up_sync_key.sock_def_readable.__udp_enqueue_schedule_skb
>       0.17 ą141%      +0.5        0.64 ą  7%  perf-profile.calltrace.cycles-pp.ttwu_queue_wakelist.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_sync_key
>       4.74 ą  3%      +0.5        5.22        perf-profile.calltrace.cycles-pp.__napi_poll.net_rx_action.handle_softirqs.do_softirq.__local_bh_enable_ip
>       4.72 ą  3%      +0.5        5.21        perf-profile.calltrace.cycles-pp.process_backlog.__napi_poll.net_rx_action.handle_softirqs.do_softirq
>       1.38 ą  8%      +0.5        1.88 ą  6%  perf-profile.calltrace.cycles-pp.flush_smp_call_function_queue.do_idle.cpu_startup_entry.start_secondary.common_startup_64
>       0.00            +0.5        0.52 ą  2%  perf-profile.calltrace.cycles-pp.dequeue_task_fair.try_to_block_task.__schedule.schedule.schedule_timeout
>       4.49 ą  3%      +0.5        5.02        perf-profile.calltrace.cycles-pp.__netif_receive_skb_one_core.process_backlog.__napi_poll.net_rx_action.handle_softirqs
>       3.89 ą  3%      +0.5        4.42        perf-profile.calltrace.cycles-pp.ip_local_deliver_finish.ip_local_deliver.__netif_receive_skb_one_core.process_backlog.__napi_poll
>       1.73 ą  6%      +0.5        2.27 ą  4%  perf-profile.calltrace.cycles-pp.__wake_up_common.__wake_up_sync_key.sock_def_readable.__udp_enqueue_schedule_skb.udp_queue_rcv_one_skb
>       3.88 ą  3%      +0.5        4.41        perf-profile.calltrace.cycles-pp.ip_protocol_deliver_rcu.ip_local_deliver_finish.ip_local_deliver.__netif_receive_skb_one_core.process_backlog
>       3.90 ą  3%      +0.5        4.44        perf-profile.calltrace.cycles-pp.ip_local_deliver.__netif_receive_skb_one_core.process_backlog.__napi_poll.net_rx_action
>       0.00            +0.5        0.54        perf-profile.calltrace.cycles-pp.try_to_block_task.__schedule.schedule.schedule_timeout.__skb_wait_for_more_packets
>       3.82 ą  3%      +0.5        4.36        perf-profile.calltrace.cycles-pp.__udp4_lib_rcv.ip_protocol_deliver_rcu.ip_local_deliver_finish.ip_local_deliver.__netif_receive_skb_one_core
>       3.39 ą  4%      +0.5        3.94 ą  2%  perf-profile.calltrace.cycles-pp.udp_queue_rcv_one_skb.udp_unicast_rcv_skb.__udp4_lib_rcv.ip_protocol_deliver_rcu.ip_local_deliver_finish
>       3.40 ą  4%      +0.6        3.95 ą  2%  perf-profile.calltrace.cycles-pp.udp_unicast_rcv_skb.__udp4_lib_rcv.ip_protocol_deliver_rcu.ip_local_deliver_finish.ip_local_deliver
>       1.77 ą  6%      +0.6        2.33 ą  4%  perf-profile.calltrace.cycles-pp.__wake_up_sync_key.sock_def_readable.__udp_enqueue_schedule_skb.udp_queue_rcv_one_skb.udp_unicast_rcv_skb
>       0.00            +0.6        0.56        perf-profile.calltrace.cycles-pp.select_task_rq.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_sync_key
>       3.15 ą  4%      +0.6        3.74        perf-profile.calltrace.cycles-pp.__udp_enqueue_schedule_skb.udp_queue_rcv_one_skb.udp_unicast_rcv_skb.__udp4_lib_rcv.ip_protocol_deliver_rcu
>       0.00            +0.6        0.62 ą  3%  perf-profile.calltrace.cycles-pp._find_next_bit.skb_defer_free_flush.net_rx_action.handle_softirqs.do_softirq
>       2.16 ą  5%      +0.6        2.80 ą  3%  perf-profile.calltrace.cycles-pp.sock_def_readable.__udp_enqueue_schedule_skb.udp_queue_rcv_one_skb.udp_unicast_rcv_skb.__udp4_lib_rcv
>       0.00            +0.8        0.76 ą  3%  perf-profile.calltrace.cycles-pp.__free_frozen_pages.skb_release_data.napi_consume_skb.skb_defer_free_flush.net_rx_action
>       6.82 ą  3%      +0.8        7.65 ą  2%  perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
>       0.00            +1.2        1.24 ą  4%  perf-profile.calltrace.cycles-pp.skb_release_data.napi_consume_skb.skb_defer_free_flush.net_rx_action.handle_softirqs
>       0.00            +1.3        1.27 ą  4%  perf-profile.calltrace.cycles-pp.napi_consume_skb.skb_defer_free_flush.net_rx_action.handle_softirqs.do_softirq
>      15.03 ą  2%      +1.4       16.40 ą  2%  perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.common_startup_64
>      15.04 ą  2%      +1.4       16.42 ą  2%  perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.common_startup_64
>      15.05 ą  2%      +1.4       16.42 ą  2%  perf-profile.calltrace.cycles-pp.start_secondary.common_startup_64
>      10.13            +2.3       12.44        perf-profile.calltrace.cycles-pp.udp_send_skb.udp_sendmsg.__sys_sendto.__x64_sys_sendto.do_syscall_64
>      10.02            +2.3       12.34        perf-profile.calltrace.cycles-pp.ip_send_skb.udp_send_skb.udp_sendmsg.__sys_sendto.__x64_sys_sendto
>       9.73            +2.3       12.07        perf-profile.calltrace.cycles-pp.ip_finish_output2.ip_output.ip_send_skb.udp_send_skb.udp_sendmsg
>       9.79            +2.3       12.13        perf-profile.calltrace.cycles-pp.ip_output.ip_send_skb.udp_send_skb.udp_sendmsg.__sys_sendto
>       9.39 ą  2%      +2.4       11.76        perf-profile.calltrace.cycles-pp.__dev_queue_xmit.ip_finish_output2.ip_output.ip_send_skb.udp_send_skb
>       8.41 ą  2%      +2.5       10.88        perf-profile.calltrace.cycles-pp.do_softirq.__local_bh_enable_ip.__dev_queue_xmit.ip_finish_output2.ip_output
>       8.36 ą  2%      +2.5       10.82        perf-profile.calltrace.cycles-pp.handle_softirqs.do_softirq.__local_bh_enable_ip.__dev_queue_xmit.ip_finish_output2
>       8.51 ą  2%      +2.5       10.98        perf-profile.calltrace.cycles-pp.__local_bh_enable_ip.__dev_queue_xmit.ip_finish_output2.ip_output.ip_send_skb
>       7.91 ą  2%      +2.5       10.45        perf-profile.calltrace.cycles-pp.net_rx_action.handle_softirqs.do_softirq.__local_bh_enable_ip.__dev_queue_xmit
>       0.00            +5.1        5.13 ą  2%  perf-profile.calltrace.cycles-pp.skb_defer_free_flush.net_rx_action.handle_softirqs.do_softirq.__local_bh_enable_ip
>      29.41            -1.8       27.59        perf-profile.children.cycles-pp.ip_make_skb
>      28.64            -1.8       26.87        perf-profile.children.cycles-pp.__ip_append_data
>      25.28            -1.7       23.61        perf-profile.children.cycles-pp.ip_generic_getfrag
>      25.95            -1.6       24.31        perf-profile.children.cycles-pp._copy_to_iter
>      33.23            -1.6       31.65        perf-profile.children.cycles-pp.__sys_recvfrom
>      33.24            -1.6       31.66        perf-profile.children.cycles-pp.__x64_sys_recvfrom
>      31.95            -1.5       30.42        perf-profile.children.cycles-pp.sock_recvmsg
>      31.86            -1.5       30.35        perf-profile.children.cycles-pp.inet_recvmsg
>      31.84            -1.5       30.34        perf-profile.children.cycles-pp.udp_recvmsg
>      24.78            -1.5       23.29        perf-profile.children.cycles-pp._copy_from_iter
>      26.98            -1.5       25.52        perf-profile.children.cycles-pp.skb_copy_datagram_iter
>      26.96            -1.5       25.51        perf-profile.children.cycles-pp.__skb_datagram_iter
>      35.15            -1.4       33.74        perf-profile.children.cycles-pp.accept_connection
>      35.15            -1.4       33.74        perf-profile.children.cycles-pp.accept_connections
>      35.15            -1.4       33.74        perf-profile.children.cycles-pp.process_requests
>      35.15            -1.4       33.74        perf-profile.children.cycles-pp.spawn_child
>      35.15            -1.4       33.74        perf-profile.children.cycles-pp.recv_omni
>      76.98            -1.1       75.86        perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
>      76.90            -1.1       75.78        perf-profile.children.cycles-pp.do_syscall_64
>       0.65 ą  7%      -0.2        0.47 ą  6%  perf-profile.children.cycles-pp.__virt_addr_valid
>       0.66 ą  5%      -0.1        0.51 ą  8%  perf-profile.children.cycles-pp.skb_attempt_defer_free
>       0.94 ą  6%      -0.1        0.81 ą  3%  perf-profile.children.cycles-pp.__check_object_size
>       0.78 ą  6%      -0.1        0.66 ą  4%  perf-profile.children.cycles-pp.check_heap_object
>       0.44 ą  3%      -0.1        0.38 ą  6%  perf-profile.children.cycles-pp.sched_clock
>       0.47 ą  3%      -0.1        0.41 ą  6%  perf-profile.children.cycles-pp.sched_clock_cpu
>       0.32 ą  8%      -0.0        0.27 ą  3%  perf-profile.children.cycles-pp.tick_nohz_next_event
>       0.20 ą 13%      -0.0        0.16 ą  7%  perf-profile.children.cycles-pp.__get_next_timer_interrupt
>       0.06 ą  7%      +0.0        0.09 ą 10%  perf-profile.children.cycles-pp.udp4_csum_init
>       0.07 ą 14%      +0.0        0.10 ą 11%  perf-profile.children.cycles-pp.prepare_to_wait_exclusive
>       0.08 ą 17%      +0.0        0.11 ą  7%  perf-profile.children.cycles-pp.update_cfs_group
>       0.23 ą  7%      +0.0        0.27 ą  8%  perf-profile.children.cycles-pp.__rseq_handle_notify_resume
>       0.09 ą 19%      +0.0        0.13 ą 14%  perf-profile.children.cycles-pp.available_idle_cpu
>       0.37 ą  6%      +0.0        0.41 ą  6%  perf-profile.children.cycles-pp.enqueue_task_fair
>       0.30 ą  8%      +0.0        0.34 ą  7%  perf-profile.children.cycles-pp.enqueue_entity
>       0.39 ą  7%      +0.0        0.44 ą  5%  perf-profile.children.cycles-pp.enqueue_task
>       0.26 ą  8%      +0.1        0.31 ą  5%  perf-profile.children.cycles-pp.update_curr
>       0.32 ą  6%      +0.1        0.38 ą  8%  perf-profile.children.cycles-pp.exit_to_user_mode_loop
>       0.37 ą  4%      +0.1        0.42 ą  6%  perf-profile.children.cycles-pp.ttwu_do_activate
>       0.34 ą  6%      +0.1        0.41 ą  4%  perf-profile.children.cycles-pp._raw_spin_lock_irqsave
>       0.27 ą  9%      +0.1        0.35 ą  4%  perf-profile.children.cycles-pp.cpus_share_cache
>       0.47 ą  6%      +0.1        0.56 ą  3%  perf-profile.children.cycles-pp.dequeue_entities
>       0.42 ą  5%      +0.1        0.51 ą  2%  perf-profile.children.cycles-pp.dequeue_entity
>       0.48 ą  6%      +0.1        0.57 ą  3%  perf-profile.children.cycles-pp.dequeue_task_fair
>       0.48 ą  5%      +0.1        0.57 ą  2%  perf-profile.children.cycles-pp.try_to_block_task
>       0.43 ą  4%      +0.1        0.53 ą  6%  perf-profile.children.cycles-pp.call_function_single_prep_ipi
>       0.39 ą  3%      +0.1        0.49 ą  3%  perf-profile.children.cycles-pp.os_xsave
>       0.46 ą  4%      +0.1        0.58 ą  6%  perf-profile.children.cycles-pp.__smp_call_single_queue
>       0.48 ą  8%      +0.1        0.60 ą  7%  perf-profile.children.cycles-pp.select_task_rq_fair
>       0.37 ą  9%      +0.1        0.48 ą  5%  perf-profile.children.cycles-pp.select_idle_sibling
>       0.43 ą  8%      +0.1        0.58 ą  2%  perf-profile.children.cycles-pp.select_task_rq
>       0.50 ą  3%      +0.2        0.66 ą  6%  perf-profile.children.cycles-pp.ttwu_queue_wakelist
>       1.58 ą  6%      +0.2        1.77 ą  4%  perf-profile.children.cycles-pp.schedule
>       0.73 ą  5%      +0.2        0.92 ą  4%  perf-profile.children.cycles-pp.sched_ttwu_pending
>       1.18 ą  8%      +0.2        1.39 ą  6%  perf-profile.children.cycles-pp.schedule_timeout
>       1.28 ą  7%      +0.3        1.56 ą  7%  perf-profile.children.cycles-pp.__skb_wait_for_more_packets
>       2.25 ą  7%      +0.4        2.60 ą  4%  perf-profile.children.cycles-pp.__schedule
>       1.04 ą 12%      +0.4        1.43 ą  8%  perf-profile.children.cycles-pp.__flush_smp_call_function_queue
>       1.38 ą  5%      +0.4        1.81 ą  4%  perf-profile.children.cycles-pp.autoremove_wake_function
>       1.42 ą  5%      +0.4        1.86 ą  4%  perf-profile.children.cycles-pp.try_to_wake_up
>       4.72 ą  3%      +0.5        5.21        perf-profile.children.cycles-pp.process_backlog
>       4.74 ą  3%      +0.5        5.22        perf-profile.children.cycles-pp.__napi_poll
>       1.76 ą  6%      +0.5        2.28 ą  4%  perf-profile.children.cycles-pp.__wake_up_common
>       4.49 ą  3%      +0.5        5.02        perf-profile.children.cycles-pp.__netif_receive_skb_one_core
>       3.89 ą  3%      +0.5        4.42        perf-profile.children.cycles-pp.ip_local_deliver_finish
>       3.90 ą  3%      +0.5        4.44        perf-profile.children.cycles-pp.ip_local_deliver
>       3.88 ą  3%      +0.5        4.41        perf-profile.children.cycles-pp.ip_protocol_deliver_rcu
>       3.82 ą  3%      +0.5        4.37        perf-profile.children.cycles-pp.__udp4_lib_rcv
>       3.40 ą  4%      +0.5        3.95 ą  2%  perf-profile.children.cycles-pp.udp_unicast_rcv_skb
>       1.79 ą  6%      +0.6        2.34 ą  4%  perf-profile.children.cycles-pp.__wake_up_sync_key
>       3.39 ą  4%      +0.6        3.94 ą  2%  perf-profile.children.cycles-pp.udp_queue_rcv_one_skb
>       3.16 ą  4%      +0.6        3.75        perf-profile.children.cycles-pp.__udp_enqueue_schedule_skb
>       0.14 ą 17%      +0.6        0.77 ą  6%  perf-profile.children.cycles-pp._find_next_bit
>       2.17 ą  5%      +0.6        2.82 ą  3%  perf-profile.children.cycles-pp.sock_def_readable
>       7.10 ą  3%      +0.8        7.90 ą  2%  perf-profile.children.cycles-pp.intel_idle
>      15.05 ą  2%      +1.4       16.42 ą  2%  perf-profile.children.cycles-pp.start_secondary
>      12.18            +2.2       14.38        perf-profile.children.cycles-pp.handle_softirqs
>      11.50            +2.3       13.75        perf-profile.children.cycles-pp.do_softirq
>      10.13            +2.3       12.44        perf-profile.children.cycles-pp.udp_send_skb
>      10.02            +2.3       12.34        perf-profile.children.cycles-pp.ip_send_skb
>       9.73            +2.3       12.07        perf-profile.children.cycles-pp.ip_finish_output2
>       9.79            +2.3       12.13        perf-profile.children.cycles-pp.ip_output
>       9.40 ą  2%      +2.4       11.76        perf-profile.children.cycles-pp.__dev_queue_xmit
>       8.60 ą  2%      +2.5       11.07        perf-profile.children.cycles-pp.__local_bh_enable_ip
>       7.91 ą  2%      +2.6       10.47        perf-profile.children.cycles-pp.net_rx_action
>       0.00            +5.1        5.14 ą  2%  perf-profile.children.cycles-pp.skb_defer_free_flush
>      25.81            -1.7       24.15        perf-profile.self.cycles-pp._copy_to_iter
>       1.73 ą  4%      -1.6        0.10 ą 12%  perf-profile.self.cycles-pp.net_rx_action
>      24.62            -1.5       23.14        perf-profile.self.cycles-pp._copy_from_iter
>       0.64 ą  7%      -0.2        0.47 ą  7%  perf-profile.self.cycles-pp.__virt_addr_valid
>       0.66 ą  5%      -0.1        0.51 ą  7%  perf-profile.self.cycles-pp.skb_attempt_defer_free
>       0.23 ą  8%      -0.0        0.19 ą 11%  perf-profile.self.cycles-pp.skb_release_data
>       0.16 ą 11%      -0.0        0.13 ą 11%  perf-profile.self.cycles-pp.handle_softirqs
>       0.15 ą  7%      -0.0        0.13 ą  8%  perf-profile.self.cycles-pp.__sys_sendto
>       0.05 ą  8%      +0.0        0.07 ą  6%  perf-profile.self.cycles-pp.__flush_smp_call_function_queue
>       0.06 ą  7%      +0.0        0.08 ą 14%  perf-profile.self.cycles-pp.udp4_csum_init
>       0.08 ą 17%      +0.0        0.11 ą 10%  perf-profile.self.cycles-pp.update_cfs_group
>       0.09 ą 17%      +0.0        0.13 ą 14%  perf-profile.self.cycles-pp.available_idle_cpu
>       0.31 ą  6%      +0.0        0.36 ą  4%  perf-profile.self.cycles-pp._raw_spin_lock_irqsave
>       0.12 ą 14%      +0.1        0.17 ą 11%  perf-profile.self.cycles-pp.irqtime_account_irq
>       0.00            +0.1        0.06 ą 19%  perf-profile.self.cycles-pp.__skb_wait_for_more_packets
>       0.02 ą 99%      +0.1        0.09 ą 26%  perf-profile.self.cycles-pp.ttwu_queue_wakelist
>       0.27 ą  9%      +0.1        0.35 ą  4%  perf-profile.self.cycles-pp.cpus_share_cache
>       0.38 ą  6%      +0.1        0.47 ą 10%  perf-profile.self.cycles-pp.sock_def_readable
>       0.37 ą 11%      +0.1        0.46 ą  5%  perf-profile.self.cycles-pp.flush_smp_call_function_queue
>       0.37 ą  9%      +0.1        0.47 ą  3%  perf-profile.self.cycles-pp.__wake_up_common
>       0.43 ą  4%      +0.1        0.53 ą  6%  perf-profile.self.cycles-pp.call_function_single_prep_ipi
>       0.39 ą  3%      +0.1        0.49 ą  3%  perf-profile.self.cycles-pp.os_xsave
>       0.36 ą  5%      +0.1        0.46 ą  9%  perf-profile.self.cycles-pp.try_to_wake_up
>       0.58 ą  6%      +0.1        0.71 ą  3%  perf-profile.self.cycles-pp.__skb_datagram_iter
>       0.12 ą 11%      +0.6        0.74 ą  5%  perf-profile.self.cycles-pp._find_next_bit
>       7.10 ą  3%      +0.8        7.90 ą  2%  perf-profile.self.cycles-pp.intel_idle
>       0.00            +3.1        3.08 ą  4%  perf-profile.self.cycles-pp.skb_defer_free_flush
>
>
>
>
>
> 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.
>
>
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki
>

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