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Message-ID: <202111090920.4958E610D1@keescook>
Date: Tue, 9 Nov 2021 09:21:42 -0800
From: Kees Cook <keescook@...omium.org>
To: kernel test robot <oliver.sang@...el.com>
Cc: Mickaël Salaün <mic@...ikod.net>,
lkp@...ts.01.org, lkp@...el.com, ying.huang@...el.com,
feng.tang@...el.com, zhengjun.xing@...ux.intel.com,
fengwei.yin@...el.com, Al Viro <viro@...iv.linux.org.uk>,
Andrew Morton <akpm@...ux-foundation.org>,
Aleksa Sarai <cyphar@...har.com>,
Andy Lutomirski <luto@...nel.org>,
Arnd Bergmann <arnd@...db.de>,
Casey Schaufler <casey@...aufler-ca.com>,
Christian Brauner <christian.brauner@...ntu.com>,
Christian Heimes <christian@...hon.org>,
Deven Bowers <deven.desai@...ux.microsoft.com>,
Dmitry Vyukov <dvyukov@...gle.com>,
Eric Biggers <ebiggers@...nel.org>,
Eric Chiang <ericchiang@...gle.com>,
Florian Weimer <fweimer@...hat.com>,
Geert Uytterhoeven <geert@...ux-m68k.org>,
James Morris <jmorris@...ei.org>, Jan Kara <jack@...e.cz>,
Jann Horn <jannh@...gle.com>, Jonathan Corbet <corbet@....net>,
Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>,
"Madhavan T . Venkataraman" <madvenka@...ux.microsoft.com>,
Matthew Garrett <mjg59@...gle.com>,
Matthew Wilcox <willy@...radead.org>,
Miklos Szeredi <mszeredi@...hat.com>,
Mimi Zohar <zohar@...ux.ibm.com>,
Paul Moore <paul@...l-moore.com>,
Philippe Trébuchet
<philippe.trebuchet@....gouv.fr>,
Scott Shell <scottsh@...rosoft.com>,
Shuah Khan <shuah@...nel.org>,
Steve Dower <steve.dower@...hon.org>,
Steve Grubb <sgrubb@...hat.com>,
Thibaut Sautereau <thibaut.sautereau@....gouv.fr>,
Vincent Strubel <vincent.strubel@....gouv.fr>,
kernel-hardening@...ts.openwall.com, linux-api@...r.kernel.org,
linux-fsdevel@...r.kernel.org, linux-integrity@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-security-module@...r.kernel.org,
Mickaël Salaün <mic@...ux.microsoft.com>
Subject: Re: [fs] a0918006f9: netperf.Throughput_tps -11.6% regression
On Fri, Nov 05, 2021 at 02:41:59PM +0800, kernel test robot wrote:
>
>
> Greeting,
>
> FYI, we noticed a -11.6% regression of netperf.Throughput_tps due to commit:
>
>
> commit: a0918006f9284b77397ae4f163f055c3e0f987b2 ("[PATCH v15 1/3] fs: Add trusted_for(2) syscall implementation and related sysctl")
> url: https://github.com/0day-ci/linux/commits/Micka-l-Sala-n/Add-trusted_for-2-was-O_MAYEXEC/20211013-032533
> patch link: https://lore.kernel.org/kernel-hardening/20211012192410.2356090-2-mic@digikod.net
>
> in testcase: netperf
> on test machine: 192 threads 4 sockets Intel(R) Xeon(R) Platinum 9242 CPU @ 2.30GHz with 192G memory
> with following parameters:
>
> ip: ipv4
> runtime: 300s
> nr_threads: 16
> cluster: cs-localhost
> test: TCP_CRR
> cpufreq_governor: performance
> ucode: 0x5003006
>
> test-description: Netperf is a benchmark that can be use to measure various aspect of networking performance.
> test-url: http://www.netperf.org/netperf/
>
>
> please be noted we made out some further analysis/tests, as Fengwei mentioned:
> ==============================================================================
> Here is my investigation result of this regression:
>
> If I add patch to make sure the kernel function address and data address is
> almost same even with this patch, there is almost no performance delta(0.1%)
> w/o the patch.
>
> And if I only make sure function address same w/o the patch, the performance
> delta is about 5.1%.
>
> So suppose this regression is triggered by different function and data address.
> We don't know why the different address could bring such kind of regression yet
> ===============================================================================
>
>
> we also tested on other platforms.
> on a Cooper Lake (Intel(R) Xeon(R) Gold 5318H CPU @ 2.50GHz with 128G memory),
> we also observed regression but the gap is smaller:
> =========================================================================================
> cluster/compiler/cpufreq_governor/ip/kconfig/nr_threads/rootfs/runtime/tbox_group/test/testcase/ucode:
> cs-localhost/gcc-9/performance/ipv4/x86_64-rhel-8.3/16/debian-10.4-x86_64-20200603.cgz/300s/lkp-cpl-4sp1/TCP_CRR/netperf/0x700001e
>
> commit:
> v5.15-rc4
> a0918006f9284b77397ae4f163f055c3e0f987b2
>
> v5.15-rc4 a0918006f9284b77397ae4f163f
> ---------------- ---------------------------
> %stddev %change %stddev
> \ | \
> 333492 -5.7% 314346 ± 2% netperf.Throughput_total_tps
> 20843 -4.5% 19896 netperf.Throughput_tps
>
>
> but no regression on a 96 threads 2 sockets Ice Lake with 256G memory:
> =========================================================================================
> cluster/compiler/cpufreq_governor/ip/kconfig/nr_threads/rootfs/runtime/tbox_group/test/testcase/ucode:
> cs-localhost/gcc-9/performance/ipv4/x86_64-rhel-8.3/16/debian-10.4-x86_64-20200603.cgz/300s/lkp-icl-2sp1/TCP_CRR/netperf/0xb000280
>
> commit:
> v5.15-rc4
> a0918006f9284b77397ae4f163f055c3e0f987b2
>
> v5.15-rc4 a0918006f9284b77397ae4f163f
> ---------------- ---------------------------
> %stddev %change %stddev
> \ | \
> 555600 -0.1% 555305 netperf.Throughput_total_tps
> 34725 -0.1% 34706 netperf.Throughput_tps
>
>
> Fengwei also helped review these results and commented:
> I suppose these three CPUs have different cache policy. It also could be
> related with netperf throughput testing.
Does moving the syscall implementation somewhere else change things?
That's a _huge_ performance change for something that isn't even called.
What's going on here?
-Kees
>
>
> If you fix the issue, kindly add following tag
> Reported-by: kernel test robot <oliver.sang@...el.com>
>
>
> Details are as below:
> -------------------------------------------------------------------------------------------------->
>
>
> To reproduce:
>
> git clone https://github.com/intel/lkp-tests.git
> cd lkp-tests
> sudo bin/lkp install job.yaml # job file is attached in this email
> bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
> sudo bin/lkp run generated-yaml-file
>
> # if come across any failure that blocks the test,
> # please remove ~/.lkp and /lkp dir to run from a clean state.
>
> =========================================================================================
> cluster/compiler/cpufreq_governor/ip/kconfig/nr_threads/rootfs/runtime/tbox_group/test/testcase/ucode:
> cs-localhost/gcc-9/performance/ipv4/x86_64-rhel-8.3/16/debian-10.4-x86_64-20200603.cgz/300s/lkp-csl-2ap3/TCP_CRR/netperf/0x5003006
>
> commit:
> v5.15-rc4
> a0918006f9 ("fs: Add trusted_for(2) syscall implementation and related sysctl")
>
> v5.15-rc4 a0918006f9284b77397ae4f163f
> ---------------- ---------------------------
> %stddev %change %stddev
> \ | \
> 354692 -11.6% 313620 netperf.Throughput_total_tps
> 22168 -11.6% 19601 netperf.Throughput_tps
> 2.075e+08 -11.6% 1.834e+08 netperf.time.voluntary_context_switches
> 1.064e+08 -11.6% 94086163 netperf.workload
> 0.27 ± 35% -0.1 0.22 ± 2% mpstat.cpu.all.usr%
> 2207583 -6.3% 2068413 vmstat.system.cs
> 3029480 ± 6% -23.3% 2324079 ± 7% interrupts.CAL:Function_call_interrupts
> 13768 ± 25% -35.6% 8872 ± 23% interrupts.CPU30.CAL:Function_call_interrupts
> 2014617 ± 16% -26.3% 1485200 ± 24% softirqs.CPU180.NET_RX
> 3.268e+08 -12.1% 2.874e+08 softirqs.NET_RX
> 287881 ± 2% +24.6% 358692 softirqs.TIMER
> 3207001 -9.6% 2899010 perf-sched.wait_and_delay.count.schedule_timeout.inet_csk_accept.inet_accept.do_accept
> 0.01 ± 15% +67.1% 0.01 ± 9% perf-sched.wait_time.avg.ms.preempt_schedule_common.__cond_resched.__release_sock.release_sock.sk_wait_data
> 0.02 ± 2% +23.3% 0.03 ± 21% perf-sched.wait_time.avg.ms.preempt_schedule_common.__cond_resched.aa_sk_perm.security_socket_accept.do_accept
> 0.01 +20.0% 0.01 perf-sched.wait_time.avg.ms.schedule_timeout.wait_woken.sk_wait_data.tcp_recvmsg_locked
> 63320 ± 2% -10.6% 56615 ± 2% slabinfo.sock_inode_cache.active_objs
> 1626 ± 2% -10.6% 1454 ± 2% slabinfo.sock_inode_cache.active_slabs
> 63445 ± 2% -10.6% 56722 ± 2% slabinfo.sock_inode_cache.num_objs
> 1626 ± 2% -10.6% 1454 ± 2% slabinfo.sock_inode_cache.num_slabs
> 49195 -3.2% 47624 proc-vmstat.nr_slab_reclaimable
> 4278441 -6.6% 3996109 proc-vmstat.numa_hit
> 4052317 ± 2% -7.4% 3751341 proc-vmstat.numa_local
> 4285136 -6.5% 4006356 proc-vmstat.pgalloc_normal
> 1704913 -11.4% 1511123 proc-vmstat.pgfree
> 9.382e+09 -10.1% 8.438e+09 perf-stat.i.branch-instructions
> 1.391e+08 -10.0% 1.252e+08 perf-stat.i.branch-misses
> 13.98 +2.2 16.20 perf-stat.i.cache-miss-rate%
> 87082775 +14.0% 99273064 perf-stat.i.cache-misses
> 2231661 -6.4% 2088571 perf-stat.i.context-switches
> 1.65 +8.6% 1.79 perf-stat.i.cpi
> 7.603e+10 -2.1% 7.441e+10 perf-stat.i.cpu-cycles
> 907.53 ± 2% -13.0% 789.92 ± 2% perf-stat.i.cycles-between-cache-misses
> 920324 ± 19% -20.3% 733572 ± 5% perf-stat.i.dTLB-load-misses
> 1.417e+10 -10.3% 1.271e+10 perf-stat.i.dTLB-loads
> 182445 ± 16% -57.6% 77419 ± 9% perf-stat.i.dTLB-store-misses
> 8.254e+09 -10.3% 7.403e+09 perf-stat.i.dTLB-stores
> 88.23 -1.7 86.52 perf-stat.i.iTLB-load-miss-rate%
> 96633753 -11.0% 85983323 perf-stat.i.iTLB-load-misses
> 12277057 +4.0% 12766535 perf-stat.i.iTLB-loads
> 4.741e+10 -10.2% 4.259e+10 perf-stat.i.instructions
> 0.62 -8.2% 0.57 perf-stat.i.ipc
> 0.40 -2.1% 0.39 perf-stat.i.metric.GHz
> 168.88 -10.1% 151.87 perf-stat.i.metric.M/sec
> 16134360 ± 2% +15.0% 18550862 perf-stat.i.node-load-misses
> 1576525 ± 2% +10.0% 1734370 ± 2% perf-stat.i.node-loads
> 10027868 -11.5% 8871598 perf-stat.i.node-store-misses
> 386034 ± 3% -16.0% 324290 ± 7% perf-stat.i.node-stores
> 13.15 +9.2% 14.36 perf-stat.overall.MPKI
> 13.97 +2.3 16.23 perf-stat.overall.cache-miss-rate%
> 1.60 +8.9% 1.75 perf-stat.overall.cpi
> 873.29 -14.2% 749.60 perf-stat.overall.cycles-between-cache-misses
> 0.00 ± 15% -0.0 0.00 ± 9% perf-stat.overall.dTLB-store-miss-rate%
> 88.73 -1.7 87.07 perf-stat.overall.iTLB-load-miss-rate%
> 0.62 -8.2% 0.57 perf-stat.overall.ipc
> 135778 +1.7% 138069 perf-stat.overall.path-length
> 9.351e+09 -10.1% 8.41e+09 perf-stat.ps.branch-instructions
> 1.387e+08 -10.0% 1.248e+08 perf-stat.ps.branch-misses
> 86797490 +14.0% 98949207 perf-stat.ps.cache-misses
> 2224197 -6.4% 2081616 perf-stat.ps.context-switches
> 7.578e+10 -2.1% 7.416e+10 perf-stat.ps.cpu-cycles
> 917495 ± 19% -20.3% 731365 ± 5% perf-stat.ps.dTLB-load-misses
> 1.412e+10 -10.3% 1.267e+10 perf-stat.ps.dTLB-loads
> 181859 ± 16% -57.6% 77179 ± 9% perf-stat.ps.dTLB-store-misses
> 8.227e+09 -10.3% 7.379e+09 perf-stat.ps.dTLB-stores
> 96313891 -11.0% 85700283 perf-stat.ps.iTLB-load-misses
> 12236194 +4.0% 12724086 perf-stat.ps.iTLB-loads
> 4.726e+10 -10.2% 4.245e+10 perf-stat.ps.instructions
> 16081690 ± 2% +15.0% 18490522 perf-stat.ps.node-load-misses
> 1571411 ± 2% +10.0% 1728755 ± 2% perf-stat.ps.node-loads
> 9995103 -11.5% 8842824 perf-stat.ps.node-store-misses
> 385193 ± 3% -16.0% 323588 ± 7% perf-stat.ps.node-stores
> 1.445e+13 -10.1% 1.299e+13 perf-stat.total.instructions
> 1.51 ± 7% -0.2 1.29 ± 7% perf-profile.calltrace.cycles-pp.smpboot_thread_fn.kthread.ret_from_fork
> 1.53 ± 7% -0.2 1.31 ± 7% perf-profile.calltrace.cycles-pp.ret_from_fork
> 1.53 ± 7% -0.2 1.31 ± 7% perf-profile.calltrace.cycles-pp.kthread.ret_from_fork
> 1.48 ± 7% -0.2 1.26 ± 7% perf-profile.calltrace.cycles-pp.rcu_core.__softirqentry_text_start.run_ksoftirqd.smpboot_thread_fn.kthread
> 1.49 ± 7% -0.2 1.27 ± 7% perf-profile.calltrace.cycles-pp.__softirqentry_text_start.run_ksoftirqd.smpboot_thread_fn.kthread.ret_from_fork
> 1.50 ± 7% -0.2 1.27 ± 7% perf-profile.calltrace.cycles-pp.run_ksoftirqd.smpboot_thread_fn.kthread.ret_from_fork
> 1.47 ± 7% -0.2 1.25 ± 7% perf-profile.calltrace.cycles-pp.rcu_do_batch.rcu_core.__softirqentry_text_start.run_ksoftirqd.smpboot_thread_fn
> 1.41 ± 7% -0.2 1.19 ± 7% perf-profile.calltrace.cycles-pp.kmem_cache_free.rcu_do_batch.rcu_core.__softirqentry_text_start.run_ksoftirqd
> 1.25 ± 7% -0.2 1.06 ± 7% perf-profile.calltrace.cycles-pp.obj_cgroup_uncharge_pages.kmem_cache_free.rcu_do_batch.rcu_core.__softirqentry_text_start
> 1.21 ± 7% -0.2 1.03 ± 7% perf-profile.calltrace.cycles-pp.page_counter_uncharge.obj_cgroup_uncharge_pages.kmem_cache_free.rcu_do_batch.rcu_core
> 0.94 ± 7% -0.1 0.80 ± 7% perf-profile.calltrace.cycles-pp.page_counter_cancel.page_counter_uncharge.obj_cgroup_uncharge_pages.kmem_cache_free.rcu_do_batch
> 0.62 ± 7% +0.2 0.80 ± 9% perf-profile.calltrace.cycles-pp.tcp_rcv_state_process.tcp_child_process.tcp_v4_rcv.ip_protocol_deliver_rcu.ip_local_deliver_finish
> 1.51 ± 7% -0.2 1.29 ± 7% perf-profile.children.cycles-pp.smpboot_thread_fn
> 1.53 ± 7% -0.2 1.31 ± 7% perf-profile.children.cycles-pp.ret_from_fork
> 1.53 ± 7% -0.2 1.31 ± 7% perf-profile.children.cycles-pp.kthread
> 1.50 ± 7% -0.2 1.27 ± 7% perf-profile.children.cycles-pp.run_ksoftirqd
> 1.73 ± 6% -0.2 1.51 ± 5% perf-profile.children.cycles-pp._raw_spin_lock_bh
> 1.25 ± 5% -0.2 1.07 ± 6% perf-profile.children.cycles-pp.lock_sock_nested
> 1.03 ± 7% -0.1 0.88 ± 6% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
> 0.83 ± 6% -0.1 0.72 ± 6% perf-profile.children.cycles-pp.sk_clone_lock
> 0.84 ± 6% -0.1 0.73 ± 6% perf-profile.children.cycles-pp.inet_csk_clone_lock
> 0.45 ± 8% -0.1 0.34 ± 6% perf-profile.children.cycles-pp.__tcp_get_metrics
> 0.70 ± 6% -0.1 0.60 ± 6% perf-profile.children.cycles-pp.percpu_counter_add_batch
> 0.52 ± 8% -0.1 0.42 ± 6% perf-profile.children.cycles-pp.tcp_get_metrics
> 0.72 ± 5% -0.1 0.62 ± 6% perf-profile.children.cycles-pp.sk_forced_mem_schedule
> 0.32 ± 7% -0.1 0.24 ± 7% perf-profile.children.cycles-pp.sk_filter_trim_cap
> 0.49 ± 7% -0.1 0.41 ± 8% perf-profile.children.cycles-pp.tcp_v4_destroy_sock
> 0.26 ± 7% -0.0 0.22 ± 8% perf-profile.children.cycles-pp.ip_finish_output
> 0.29 ± 6% -0.0 0.25 ± 9% perf-profile.children.cycles-pp.tcp_write_queue_purge
> 0.16 ± 10% -0.0 0.12 ± 8% perf-profile.children.cycles-pp.get_obj_cgroup_from_current
> 0.10 ± 8% -0.0 0.08 ± 6% perf-profile.children.cycles-pp.__destroy_inode
> 0.10 ± 8% -0.0 0.08 ± 6% perf-profile.children.cycles-pp.destroy_inode
> 0.10 ± 9% -0.0 0.08 ± 10% perf-profile.children.cycles-pp.sock_put
> 0.10 ± 10% -0.0 0.07 ± 8% perf-profile.children.cycles-pp.d_instantiate
> 0.08 ± 11% -0.0 0.06 ± 9% perf-profile.children.cycles-pp.kmem_cache_alloc_trace
> 0.11 ± 8% +0.0 0.15 ± 6% perf-profile.children.cycles-pp.__inet_lookup_listener
> 0.08 ± 9% +0.0 0.12 ± 8% perf-profile.children.cycles-pp.inet_lhash2_lookup
> 0.10 ± 7% +0.0 0.14 ± 7% perf-profile.children.cycles-pp.tcp_ca_openreq_child
> 0.08 ± 9% +0.0 0.13 ± 9% perf-profile.children.cycles-pp.tcp_newly_delivered
> 0.08 ± 6% +0.0 0.12 ± 9% perf-profile.children.cycles-pp.tcp_mtup_init
> 0.09 ± 8% +0.1 0.15 ± 6% perf-profile.children.cycles-pp.tcp_stream_memory_free
> 0.24 ± 6% +0.1 0.30 ± 8% perf-profile.children.cycles-pp.ip_rcv_core
> 0.06 ± 9% +0.1 0.12 ± 7% perf-profile.children.cycles-pp.tcp_push
> 0.11 ± 9% +0.1 0.17 ± 7% perf-profile.children.cycles-pp.tcp_synack_rtt_meas
> 0.00 ±412% +0.1 0.07 ± 14% perf-profile.children.cycles-pp.tcp_rack_update_reo_wnd
> 0.20 ± 8% +0.1 0.28 ± 6% perf-profile.children.cycles-pp.tcp_assign_congestion_control
> 0.34 ± 8% +0.1 0.42 ± 6% perf-profile.children.cycles-pp.tcp_init_metrics
> 0.14 ± 6% +0.1 0.22 ± 8% perf-profile.children.cycles-pp.tcp_sync_mss
> 0.33 ± 5% +0.1 0.41 ± 8% perf-profile.children.cycles-pp.inet_csk_route_req
> 0.31 ± 6% +0.1 0.40 ± 6% perf-profile.children.cycles-pp.inet_csk_route_child_sock
> 0.13 ± 8% +0.1 0.22 ± 6% perf-profile.children.cycles-pp.skb_entail
> 0.21 ± 6% +0.1 0.32 ± 7% perf-profile.children.cycles-pp.ip_rcv_finish_core
> 0.24 ± 5% +0.1 0.35 ± 7% perf-profile.children.cycles-pp.ip_rcv_finish
> 0.20 ± 7% +0.1 0.32 ± 5% perf-profile.children.cycles-pp.tcp_select_initial_window
> 0.14 ± 5% +0.1 0.26 ± 8% perf-profile.children.cycles-pp.secure_tcp_ts_off
> 0.45 ± 6% +0.1 0.58 ± 6% perf-profile.children.cycles-pp.tcp_finish_connect
> 0.23 ± 5% +0.1 0.35 ± 5% perf-profile.children.cycles-pp.tcp_parse_options
> 0.17 ± 7% +0.1 0.31 ± 6% perf-profile.children.cycles-pp.tcp_update_pacing_rate
> 0.20 ± 7% +0.1 0.35 ± 6% perf-profile.children.cycles-pp.tcp_openreq_init_rwin
> 0.27 ± 9% +0.1 0.42 ± 7% perf-profile.children.cycles-pp.tcp_connect_init
> 0.45 ± 7% +0.2 0.60 ± 5% perf-profile.children.cycles-pp.tcp_v4_init_sock
> 0.44 ± 7% +0.2 0.60 ± 6% perf-profile.children.cycles-pp.tcp_init_sock
> 0.23 ± 7% +0.2 0.39 ± 6% perf-profile.children.cycles-pp.tcp_schedule_loss_probe
> 0.35 ± 6% +0.2 0.57 ± 7% perf-profile.children.cycles-pp.inet_sk_rebuild_header
> 0.25 ± 9% +0.2 0.49 ± 7% perf-profile.children.cycles-pp.__tcp_select_window
> 0.35 ± 6% +0.3 0.61 ± 6% perf-profile.children.cycles-pp.tcp_ack_update_rtt
> 0.76 ± 5% +0.3 1.04 ± 6% perf-profile.children.cycles-pp.ip_route_output_flow
> 0.78 ± 6% +0.3 1.08 ± 6% perf-profile.children.cycles-pp.tcp_init_transfer
> 1.78 ± 6% +0.3 2.11 ± 6% perf-profile.children.cycles-pp.tcp_conn_request
> 1.07 ± 4% +0.4 1.44 ± 5% perf-profile.children.cycles-pp.ip_route_output_key_hash
> 1.02 ± 5% +0.4 1.40 ± 5% perf-profile.children.cycles-pp.ip_route_output_key_hash_rcu
> 2.02 ± 5% +0.5 2.50 ± 6% perf-profile.children.cycles-pp.tcp_ack
> 1.04 ± 7% +0.6 1.63 ± 7% perf-profile.children.cycles-pp.__sk_dst_check
> 1.18 ± 7% +0.7 1.86 ± 7% perf-profile.children.cycles-pp.ipv4_dst_check
> 5.95 ± 5% +0.9 6.87 ± 6% perf-profile.children.cycles-pp.tcp_v4_connect
> 1.02 ± 7% -0.2 0.87 ± 5% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
> 0.44 ± 8% -0.1 0.34 ± 6% perf-profile.self.cycles-pp.__tcp_get_metrics
> 0.69 ± 6% -0.1 0.59 ± 6% perf-profile.self.cycles-pp.percpu_counter_add_batch
> 0.71 ± 5% -0.1 0.61 ± 6% perf-profile.self.cycles-pp.sk_forced_mem_schedule
> 0.32 ± 6% -0.1 0.26 ± 8% perf-profile.self.cycles-pp.ip_finish_output2
> 0.35 ± 7% -0.1 0.29 ± 5% perf-profile.self.cycles-pp.tcp_recvmsg_locked
> 0.15 ± 7% -0.0 0.12 ± 8% perf-profile.self.cycles-pp.exit_to_user_mode_prepare
> 0.17 ± 6% -0.0 0.14 ± 10% perf-profile.self.cycles-pp.__skb_clone
> 0.07 ± 5% -0.0 0.04 ± 43% perf-profile.self.cycles-pp.sk_filter_trim_cap
> 0.09 ± 9% -0.0 0.07 ± 6% perf-profile.self.cycles-pp.dequeue_task_fair
> 0.08 ± 7% -0.0 0.06 ± 8% perf-profile.self.cycles-pp.release_sock
> 0.07 ± 10% +0.0 0.09 ± 9% perf-profile.self.cycles-pp.tcp_create_openreq_child
> 0.11 ± 7% +0.0 0.15 ± 5% perf-profile.self.cycles-pp.tcp_connect
> 0.08 ± 9% +0.0 0.12 ± 8% perf-profile.self.cycles-pp.inet_lhash2_lookup
> 0.09 ± 9% +0.0 0.13 ± 6% perf-profile.self.cycles-pp.inet_csk_get_port
> 0.08 ± 10% +0.0 0.12 ± 8% perf-profile.self.cycles-pp.tcp_init_transfer
> 0.08 ± 9% +0.0 0.13 ± 8% perf-profile.self.cycles-pp.tcp_newly_delivered
> 0.07 ± 7% +0.0 0.12 ± 9% perf-profile.self.cycles-pp.tcp_mtup_init
> 0.35 ± 5% +0.1 0.40 ± 5% perf-profile.self.cycles-pp.__ip_queue_xmit
> 0.16 ± 7% +0.1 0.22 ± 6% perf-profile.self.cycles-pp.__inet_bind
> 0.09 ± 8% +0.1 0.15 ± 6% perf-profile.self.cycles-pp.tcp_stream_memory_free
> 0.24 ± 6% +0.1 0.30 ± 8% perf-profile.self.cycles-pp.ip_rcv_core
> 0.06 ± 9% +0.1 0.12 ± 6% perf-profile.self.cycles-pp.tcp_push
> 0.00 +0.1 0.07 ± 11% perf-profile.self.cycles-pp.tcp_rack_update_reo_wnd
> 0.23 ± 8% +0.1 0.30 ± 6% perf-profile.self.cycles-pp.ip_output
> 0.20 ± 8% +0.1 0.28 ± 5% perf-profile.self.cycles-pp.tcp_assign_congestion_control
> 0.10 ± 8% +0.1 0.18 ± 7% perf-profile.self.cycles-pp.tcp_v4_syn_recv_sock
> 0.09 ± 7% +0.1 0.17 ± 7% perf-profile.self.cycles-pp.tcp_openreq_init_rwin
> 0.07 ± 10% +0.1 0.16 ± 6% perf-profile.self.cycles-pp.tcp_v4_send_synack
> 0.13 ± 7% +0.1 0.22 ± 7% perf-profile.self.cycles-pp.tcp_sync_mss
> 0.12 ± 8% +0.1 0.20 ± 7% perf-profile.self.cycles-pp.skb_entail
> 0.18 ± 8% +0.1 0.27 ± 6% perf-profile.self.cycles-pp.ip_protocol_deliver_rcu
> 0.21 ± 5% +0.1 0.31 ± 6% perf-profile.self.cycles-pp.ip_rcv_finish_core
> 0.15 ± 9% +0.1 0.26 ± 6% perf-profile.self.cycles-pp.tcp_update_metrics
> 0.20 ± 8% +0.1 0.31 ± 5% perf-profile.self.cycles-pp.tcp_select_initial_window
> 0.12 ± 9% +0.1 0.25 ± 8% perf-profile.self.cycles-pp.tcp_connect_init
> 0.11 ± 8% +0.1 0.24 ± 8% perf-profile.self.cycles-pp.secure_tcp_ts_off
> 0.22 ± 5% +0.1 0.35 ± 5% perf-profile.self.cycles-pp.tcp_parse_options
> 0.13 ± 12% +0.1 0.27 ± 7% perf-profile.self.cycles-pp.tcp_init_metrics
> 0.17 ± 7% +0.1 0.30 ± 7% perf-profile.self.cycles-pp.tcp_update_pacing_rate
> 0.17 ± 10% +0.2 0.32 ± 6% perf-profile.self.cycles-pp.tcp_init_sock
> 0.18 ± 8% +0.2 0.35 ± 6% perf-profile.self.cycles-pp.tcp_schedule_loss_probe
> 0.42 ± 8% +0.2 0.62 ± 7% perf-profile.self.cycles-pp.tcp_write_xmit
> 0.25 ± 8% +0.2 0.48 ± 7% perf-profile.self.cycles-pp.__tcp_select_window
> 0.28 ± 8% +0.3 0.56 ± 5% perf-profile.self.cycles-pp.tcp_ack_update_rtt
> 0.71 ± 5% +0.4 1.09 ± 6% perf-profile.self.cycles-pp.ip_route_output_key_hash_rcu
> 1.17 ± 7% +0.7 1.84 ± 7% perf-profile.self.cycles-pp.ipv4_dst_check
>
>
>
> netperf.Throughput_tps
>
> 22500 +-------------------------------------------------------------------+
> | ...+...... ...+......+.....+.....|
> 22000 |.....+.. +.....+.....+.....+.....+.. |
> | |
> | |
> 21500 |-+ |
> | |
> 21000 |-+ |
> | |
> 20500 |-+ |
> | |
> | |
> 20000 |-+ |
> | O O O O O |
> 19500 +-------------------------------------------------------------------+
>
>
> netperf.Throughput_total_tps
>
> 360000 +------------------------------------------------------------------+
> 355000 |-+ ...+..... ...+..... ...+.. +.....|
> |.....+.. +.....+.....+... +.. |
> 350000 |-+ |
> 345000 |-+ |
> | |
> 340000 |-+ |
> 335000 |-+ |
> 330000 |-+ |
> | |
> 325000 |-+ |
> 320000 |-+ |
> | |
> 315000 |-+ O O O O O O O O O O |
> 310000 +------------------------------------------------------------------+
>
>
> netperf.workload
>
> 1.08e+08 +----------------------------------------------------------------+
> | ...+.....+..... ..+..... ...+.. +.....|
> 1.06e+08 |.....+.. +.....+.. +.. |
> 1.04e+08 |-+ |
> | |
> 1.02e+08 |-+ |
> | |
> 1e+08 |-+ |
> | |
> 9.8e+07 |-+ |
> 9.6e+07 |-+ |
> | |
> 9.4e+07 |-+ O O O O O O O O O O |
> | |
> 9.2e+07 +----------------------------------------------------------------+
>
>
> netperf.time.voluntary_context_switches
>
> 2.1e+08 +----------------------------------------------------------------+
> |.....+.....+.....+.....+.....+....+..... ...+.. +.....|
> 2.05e+08 |-+ +.. |
> | |
> | |
> 2e+08 |-+ |
> | |
> 1.95e+08 |-+ |
> | |
> 1.9e+08 |-+ |
> | |
> | |
> 1.85e+08 |-+ O O O O O O O |
> | O O O |
> 1.8e+08 +----------------------------------------------------------------+
>
>
>
>
> 0.006 +------------------------------------------------------------------+
> | |
> | |
> 0.0058 |-+ |
> | |
> | |
> 0.0056 |-+ |
> | |
> 0.0054 |-+ |
> | |
> | |
> 0.0052 |-+ |
> | |
> | |
> 0.005 +------------------------------------------------------------------+
>
>
>
>
> 3.25e+06 +----------------------------------------------------------------+
> |..... ...+.... ...+....+.....+.....+..... ...+.....|
> 3.2e+06 |-+ +.. . ...+.. +.. |
> | +.. |
> 3.15e+06 |-+ |
> 3.1e+06 |-+ |
> | |
> 3.05e+06 |-+ |
> | |
> 3e+06 |-+ |
> 2.95e+06 |-+ |
> | |
> 2.9e+06 |-+ O O O O O O O O O |
> | O |
> 2.85e+06 +----------------------------------------------------------------+
>
>
> [*] bisect-good sample
> [O] bisect-bad sample
>
> ***************************************************************************************************
> lkp-icl-2sp1: 96 threads 2 sockets Ice Lake with 256G memory
>
>
>
>
>
> 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
>
> #!/bin/sh
>
> export_top_env()
> {
> export suite='netperf'
> export testcase='netperf'
> export category='benchmark'
> export disable_latency_stats=1
> export set_nic_irq_affinity=1
> export ip='ipv4'
> export runtime=300
> export nr_threads=16
> export cluster='cs-localhost'
> export job_origin='netperf-small-threads.yaml'
> export queue_cmdline_keys=
> export queue='vip'
> export testbox='lkp-csl-2ap3'
> export tbox_group='lkp-csl-2ap3'
> export kconfig='x86_64-rhel-8.3'
> export submit_id='617960e80b9a930a5af4f104'
> export job_file='/lkp/jobs/scheduled/lkp-csl-2ap3/netperf-cs-localhost-performance-ipv4-16-300s-TCP_CRR-ucode=0x5003006-debian-10.4-x86_64-20200603.cgz-a0918006f9284b77397ae4f163-20211027-68186-ja0nr3-6.yaml'
> export id='fbecc857f957790eb9cfac7363705ffadfda23f9'
> export queuer_version='/lkp/xsang/.src-20211027-151141'
> export model='Cascade Lake'
> export nr_node=4
> export nr_cpu=192
> export memory='192G'
> export ssd_partitions=
> export rootfs_partition='LABEL=LKP-ROOTFS'
> export kernel_cmdline_hw='acpi_rsdp=0x67f44014'
> export brand='Intel(R) Xeon(R) Platinum 9242 CPU @ 2.30GHz'
> export commit='a0918006f9284b77397ae4f163f055c3e0f987b2'
> export need_kconfig_hw='{"IGB"=>"y"}
> BLK_DEV_NVME'
> export ucode='0x5003006'
> export enqueue_time='2021-10-27 22:23:36 +0800'
> export _id='617960f00b9a930a5af4f10a'
> export _rt='/result/netperf/cs-localhost-performance-ipv4-16-300s-TCP_CRR-ucode=0x5003006/lkp-csl-2ap3/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3/gcc-9/a0918006f9284b77397ae4f163f055c3e0f987b2'
> export user='lkp'
> export compiler='gcc-9'
> export LKP_SERVER='internal-lkp-server'
> export head_commit='955f175760f41ad2a80b07a390bac9a0444a47a6'
> export base_commit='519d81956ee277b4419c723adfb154603c2565ba'
> export branch='linux-devel/devel-hourly-20211025-030231'
> export rootfs='debian-10.4-x86_64-20200603.cgz'
> export result_root='/result/netperf/cs-localhost-performance-ipv4-16-300s-TCP_CRR-ucode=0x5003006/lkp-csl-2ap3/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3/gcc-9/a0918006f9284b77397ae4f163f055c3e0f987b2/8'
> export scheduler_version='/lkp/lkp/.src-20211027-140142'
> export arch='x86_64'
> export max_uptime=2100
> export initrd='/osimage/debian/debian-10.4-x86_64-20200603.cgz'
> export bootloader_append='root=/dev/ram0
> user=lkp
> job=/lkp/jobs/scheduled/lkp-csl-2ap3/netperf-cs-localhost-performance-ipv4-16-300s-TCP_CRR-ucode=0x5003006-debian-10.4-x86_64-20200603.cgz-a0918006f9284b77397ae4f163-20211027-68186-ja0nr3-6.yaml
> ARCH=x86_64
> kconfig=x86_64-rhel-8.3
> branch=linux-devel/devel-hourly-20211025-030231
> commit=a0918006f9284b77397ae4f163f055c3e0f987b2
> BOOT_IMAGE=/pkg/linux/x86_64-rhel-8.3/gcc-9/a0918006f9284b77397ae4f163f055c3e0f987b2/vmlinuz-5.15.0-rc4-00001-ga0918006f928
> acpi_rsdp=0x67f44014
> max_uptime=2100
> RESULT_ROOT=/result/netperf/cs-localhost-performance-ipv4-16-300s-TCP_CRR-ucode=0x5003006/lkp-csl-2ap3/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3/gcc-9/a0918006f9284b77397ae4f163f055c3e0f987b2/8
> LKP_SERVER=internal-lkp-server
> nokaslr
> selinux=0
> debug
> apic=debug
> sysrq_always_enabled
> rcupdate.rcu_cpu_stall_timeout=100
> net.ifnames=0
> printk.devkmsg=on
> panic=-1
> softlockup_panic=1
> nmi_watchdog=panic
> oops=panic
> load_ramdisk=2
> prompt_ramdisk=0
> drbd.minor_count=8
> systemd.log_level=err
> ignore_loglevel
> console=tty0
> earlyprintk=ttyS0,115200
> console=ttyS0,115200
> vga=normal
> rw'
> export modules_initrd='/pkg/linux/x86_64-rhel-8.3/gcc-9/a0918006f9284b77397ae4f163f055c3e0f987b2/modules.cgz'
> export bm_initrd='/osimage/deps/debian-10.4-x86_64-20200603.cgz/run-ipconfig_20200608.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/lkp_20210707.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/rsync-rootfs_20200608.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/netperf_20210930.cgz,/osimage/pkg/debian-10.4-x86_64-20200603.cgz/netperf-x86_64-2.7-0_20211027.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/mpstat_20200714.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/turbostat_20200721.cgz,/osimage/pkg/debian-10.4-x86_64-20200603.cgz/turbostat-x86_64-3.7-4_20200721.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/perf_20211027.cgz,/osimage/pkg/debian-10.4-x86_64-20200603.cgz/perf-x86_64-d25f27432f80-1_20211027.cgz,/osimage/pkg/debian-10.4-x86_64-20200603.cgz/sar-x86_64-34c92ae-1_20200702.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/hw_20200715.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/cluster_20211026.cgz'
> export ucode_initrd='/osimage/ucode/intel-ucode-20210222.cgz'
> export lkp_initrd='/osimage/user/lkp/lkp-x86_64.cgz'
> export site='inn'
> export LKP_CGI_PORT=80
> export LKP_CIFS_PORT=139
> export last_kernel='5.15.0-rc6-wt-12022-g955f175760f4'
> export queue_at_least_once=0
> export schedule_notify_address=
> export kernel='/pkg/linux/x86_64-rhel-8.3/gcc-9/a0918006f9284b77397ae4f163f055c3e0f987b2/vmlinuz-5.15.0-rc4-00001-ga0918006f928'
> export dequeue_time='2021-10-28 03:03:20 +0800'
> export node_roles='server client'
> export job_initrd='/lkp/jobs/scheduled/lkp-csl-2ap3/netperf-cs-localhost-performance-ipv4-16-300s-TCP_CRR-ucode=0x5003006-debian-10.4-x86_64-20200603.cgz-a0918006f9284b77397ae4f163-20211027-68186-ja0nr3-6.cgz'
>
> [ -n "$LKP_SRC" ] ||
> export LKP_SRC=/lkp/${user:-lkp}/src
> }
>
> run_job()
> {
> echo $$ > $TMP/run-job.pid
>
> . $LKP_SRC/lib/http.sh
> . $LKP_SRC/lib/job.sh
> . $LKP_SRC/lib/env.sh
>
> export_top_env
>
> run_setup $LKP_SRC/setup/cpufreq_governor 'performance'
>
> run_monitor $LKP_SRC/monitors/wrapper kmsg
> run_monitor $LKP_SRC/monitors/no-stdout/wrapper boot-time
> run_monitor $LKP_SRC/monitors/wrapper uptime
> run_monitor $LKP_SRC/monitors/wrapper iostat
> run_monitor $LKP_SRC/monitors/wrapper heartbeat
> run_monitor $LKP_SRC/monitors/wrapper vmstat
> run_monitor $LKP_SRC/monitors/wrapper numa-numastat
> run_monitor $LKP_SRC/monitors/wrapper numa-vmstat
> run_monitor $LKP_SRC/monitors/wrapper numa-meminfo
> run_monitor $LKP_SRC/monitors/wrapper proc-vmstat
> run_monitor $LKP_SRC/monitors/wrapper proc-stat
> run_monitor $LKP_SRC/monitors/wrapper meminfo
> run_monitor $LKP_SRC/monitors/wrapper slabinfo
> run_monitor $LKP_SRC/monitors/wrapper interrupts
> run_monitor $LKP_SRC/monitors/wrapper lock_stat
> run_monitor lite_mode=1 $LKP_SRC/monitors/wrapper perf-sched
> run_monitor $LKP_SRC/monitors/wrapper softirqs
> run_monitor $LKP_SRC/monitors/one-shot/wrapper bdi_dev_mapping
> run_monitor $LKP_SRC/monitors/wrapper diskstats
> run_monitor $LKP_SRC/monitors/wrapper nfsstat
> run_monitor $LKP_SRC/monitors/wrapper cpuidle
> run_monitor $LKP_SRC/monitors/wrapper cpufreq-stats
> run_monitor $LKP_SRC/monitors/wrapper turbostat
> run_monitor $LKP_SRC/monitors/wrapper sched_debug
> run_monitor $LKP_SRC/monitors/wrapper perf-stat
> run_monitor $LKP_SRC/monitors/wrapper mpstat
> run_monitor lite_mode=1 $LKP_SRC/monitors/no-stdout/wrapper perf-profile
> run_monitor $LKP_SRC/monitors/wrapper oom-killer
> run_monitor $LKP_SRC/monitors/plain/watchdog
>
> if role server
> then
> start_daemon $LKP_SRC/daemon/netserver
> fi
>
> if role client
> then
> run_test test='TCP_CRR' $LKP_SRC/tests/wrapper netperf
> fi
> }
>
> extract_stats()
> {
> export stats_part_begin=
> export stats_part_end=
>
> env test='TCP_CRR' $LKP_SRC/stats/wrapper netperf
> $LKP_SRC/stats/wrapper kmsg
> $LKP_SRC/stats/wrapper boot-time
> $LKP_SRC/stats/wrapper uptime
> $LKP_SRC/stats/wrapper iostat
> $LKP_SRC/stats/wrapper vmstat
> $LKP_SRC/stats/wrapper numa-numastat
> $LKP_SRC/stats/wrapper numa-vmstat
> $LKP_SRC/stats/wrapper numa-meminfo
> $LKP_SRC/stats/wrapper proc-vmstat
> $LKP_SRC/stats/wrapper meminfo
> $LKP_SRC/stats/wrapper slabinfo
> $LKP_SRC/stats/wrapper interrupts
> $LKP_SRC/stats/wrapper lock_stat
> env lite_mode=1 $LKP_SRC/stats/wrapper perf-sched
> $LKP_SRC/stats/wrapper softirqs
> $LKP_SRC/stats/wrapper diskstats
> $LKP_SRC/stats/wrapper nfsstat
> $LKP_SRC/stats/wrapper cpuidle
> $LKP_SRC/stats/wrapper turbostat
> $LKP_SRC/stats/wrapper sched_debug
> $LKP_SRC/stats/wrapper perf-stat
> $LKP_SRC/stats/wrapper mpstat
> env lite_mode=1 $LKP_SRC/stats/wrapper perf-profile
>
> $LKP_SRC/stats/wrapper time netperf.time
> $LKP_SRC/stats/wrapper dmesg
> $LKP_SRC/stats/wrapper kmsg
> $LKP_SRC/stats/wrapper last_state
> $LKP_SRC/stats/wrapper stderr
> $LKP_SRC/stats/wrapper time
> }
>
> "$@"
> ---
> :#! jobs/netperf-small-threads.yaml:
> suite: netperf
> testcase: netperf
> category: benchmark
> :# upto 90% CPU cycles may be used by latency stats:
> disable_latency_stats: 1
> set_nic_irq_affinity: 1
> ip: ipv4
> runtime: 300s
> nr_threads: 16
> cluster: cs-localhost
> if role server:
> netserver:
> if role client:
> netperf:
> test: TCP_CRR
> job_origin: netperf-small-threads.yaml
> :#! queue options:
> queue_cmdline_keys: []
> queue: vip
> testbox: lkp-csl-2ap3
> tbox_group: lkp-csl-2ap3
> kconfig: x86_64-rhel-8.3
> submit_id: 617960e80b9a930a5af4f104
> job_file: "/lkp/jobs/scheduled/lkp-csl-2ap3/netperf-cs-localhost-performance-ipv4-16-300s-TCP_CRR-ucode=0x5003006-debian-10.4-x86_64-20200603.cgz-a0918006f9284b77397ae4f163-20211027-68186-ja0nr3-4.yaml"
> id: d804900eed74d058b23143a825d247e0f8d03392
> queuer_version: "/lkp/xsang/.src-20211027-151141"
> :#! hosts/lkp-csl-2ap3:
> model: Cascade Lake
> nr_node: 4
> nr_cpu: 192
> memory: 192G
> ssd_partitions:
> rootfs_partition: LABEL=LKP-ROOTFS
> kernel_cmdline_hw: acpi_rsdp=0x67f44014
> brand: Intel(R) Xeon(R) Platinum 9242 CPU @ 2.30GHz
> :#! include/category/benchmark:
> kmsg:
> boot-time:
> uptime:
> iostat:
> heartbeat:
> vmstat:
> numa-numastat:
> numa-vmstat:
> numa-meminfo:
> proc-vmstat:
> proc-stat:
> meminfo:
> slabinfo:
> interrupts:
> lock_stat:
> perf-sched:
> lite_mode: 1
> softirqs:
> bdi_dev_mapping:
> diskstats:
> nfsstat:
> cpuidle:
> cpufreq-stats:
> turbostat:
> sched_debug:
> perf-stat:
> mpstat:
> perf-profile:
> lite_mode: 1
> :#! include/category/ALL:
> cpufreq_governor: performance
> :#! include/queue/cyclic:
> commit: a0918006f9284b77397ae4f163f055c3e0f987b2
> :#! include/testbox/lkp-csl-2ap3:
> need_kconfig_hw:
> - IGB: y
> - BLK_DEV_NVME
> ucode: '0x5003006'
> enqueue_time: 2021-10-27 22:23:36.647383432 +08:00
> _id: 617960f00b9a930a5af4f108
> _rt: "/result/netperf/cs-localhost-performance-ipv4-16-300s-TCP_CRR-ucode=0x5003006/lkp-csl-2ap3/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3/gcc-9/a0918006f9284b77397ae4f163f055c3e0f987b2"
> :#! schedule options:
> user: lkp
> compiler: gcc-9
> LKP_SERVER: internal-lkp-server
> head_commit: 955f175760f41ad2a80b07a390bac9a0444a47a6
> base_commit: 519d81956ee277b4419c723adfb154603c2565ba
> branch: linux-devel/devel-hourly-20211025-030231
> rootfs: debian-10.4-x86_64-20200603.cgz
> result_root: "/result/netperf/cs-localhost-performance-ipv4-16-300s-TCP_CRR-ucode=0x5003006/lkp-csl-2ap3/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3/gcc-9/a0918006f9284b77397ae4f163f055c3e0f987b2/0"
> scheduler_version: "/lkp/lkp/.src-20211027-140142"
> arch: x86_64
> max_uptime: 2100
> initrd: "/osimage/debian/debian-10.4-x86_64-20200603.cgz"
> bootloader_append:
> - root=/dev/ram0
> - user=lkp
> - job=/lkp/jobs/scheduled/lkp-csl-2ap3/netperf-cs-localhost-performance-ipv4-16-300s-TCP_CRR-ucode=0x5003006-debian-10.4-x86_64-20200603.cgz-a0918006f9284b77397ae4f163-20211027-68186-ja0nr3-4.yaml
> - ARCH=x86_64
> - kconfig=x86_64-rhel-8.3
> - branch=linux-devel/devel-hourly-20211025-030231
> - commit=a0918006f9284b77397ae4f163f055c3e0f987b2
> - BOOT_IMAGE=/pkg/linux/x86_64-rhel-8.3/gcc-9/a0918006f9284b77397ae4f163f055c3e0f987b2/vmlinuz-5.15.0-rc4-00001-ga0918006f928
> - acpi_rsdp=0x67f44014
> - max_uptime=2100
> - RESULT_ROOT=/result/netperf/cs-localhost-performance-ipv4-16-300s-TCP_CRR-ucode=0x5003006/lkp-csl-2ap3/debian-10.4-x86_64-20200603.cgz/x86_64-rhel-8.3/gcc-9/a0918006f9284b77397ae4f163f055c3e0f987b2/0
> - LKP_SERVER=internal-lkp-server
> - nokaslr
> - selinux=0
> - debug
> - apic=debug
> - sysrq_always_enabled
> - rcupdate.rcu_cpu_stall_timeout=100
> - net.ifnames=0
> - printk.devkmsg=on
> - panic=-1
> - softlockup_panic=1
> - nmi_watchdog=panic
> - oops=panic
> - load_ramdisk=2
> - prompt_ramdisk=0
> - drbd.minor_count=8
> - systemd.log_level=err
> - ignore_loglevel
> - console=tty0
> - earlyprintk=ttyS0,115200
> - console=ttyS0,115200
> - vga=normal
> - rw
> modules_initrd: "/pkg/linux/x86_64-rhel-8.3/gcc-9/a0918006f9284b77397ae4f163f055c3e0f987b2/modules.cgz"
> bm_initrd: "/osimage/deps/debian-10.4-x86_64-20200603.cgz/run-ipconfig_20200608.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/lkp_20210707.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/rsync-rootfs_20200608.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/netperf_20210930.cgz,/osimage/pkg/debian-10.4-x86_64-20200603.cgz/netperf-x86_64-2.7-0_20211025.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/mpstat_20200714.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/turbostat_20200721.cgz,/osimage/pkg/debian-10.4-x86_64-20200603.cgz/turbostat-x86_64-3.7-4_20200721.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/perf_20211027.cgz,/osimage/pkg/debian-10.4-x86_64-20200603.cgz/perf-x86_64-d25f27432f80-1_20211027.cgz,/osimage/pkg/debian-10.4-x86_64-20200603.cgz/sar-x86_64-34c92ae-1_20200702.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/hw_20200715.cgz,/osimage/deps/debian-10.4-x86_64-20200603.cgz/cluster_20211026.cgz"
> ucode_initrd: "/osimage/ucode/intel-ucode-20210222.cgz"
> lkp_initrd: "/osimage/user/lkp/lkp-x86_64.cgz"
> site: inn
> :#! /lkp/lkp/.src-20211026-143536/include/site/inn:
> LKP_CGI_PORT: 80
> LKP_CIFS_PORT: 139
> oom-killer:
> watchdog:
> :#! runtime status:
> last_kernel: 5.15.0-rc6-wt-12022-g955f175760f4
> queue_at_least_once: 0
> :#! /lkp/lkp/.src-20211026-205023/include/site/inn:
> :#! user overrides:
> schedule_notify_address:
> kernel: "/pkg/linux/x86_64-rhel-8.3/gcc-9/a0918006f9284b77397ae4f163f055c3e0f987b2/vmlinuz-5.15.0-rc4-00001-ga0918006f928"
> dequeue_time: 2021-10-28 02:02:15.174367353 +08:00
> :#! /lkp/lkp/.src-20211027-140142/include/site/inn:
> job_state: finished
> loadavg: 6.09 10.58 5.53 1/1355 19660
> start_time: '1635357811'
> end_time: '1635358116'
> version: "/lkp/lkp/.src-20211027-140222:5f87ddf4:8610dc698"
>
> for cpu_dir in /sys/devices/system/cpu/cpu[0-9]*
> do
> online_file="$cpu_dir"/online
> [ -f "$online_file" ] && [ "$(cat "$online_file")" -eq 0 ] && continue
>
> file="$cpu_dir"/cpufreq/scaling_governor
> [ -f "$file" ] && echo "performance" > "$file"
> done
>
> netserver -4 -D
> netperf -4 -H 127.0.0.1 -t TCP_CRR -c -C -l 300 &
> netperf -4 -H 127.0.0.1 -t TCP_CRR -c -C -l 300 &
> netperf -4 -H 127.0.0.1 -t TCP_CRR -c -C -l 300 &
> netperf -4 -H 127.0.0.1 -t TCP_CRR -c -C -l 300 &
> netperf -4 -H 127.0.0.1 -t TCP_CRR -c -C -l 300 &
> netperf -4 -H 127.0.0.1 -t TCP_CRR -c -C -l 300 &
> netperf -4 -H 127.0.0.1 -t TCP_CRR -c -C -l 300 &
> netperf -4 -H 127.0.0.1 -t TCP_CRR -c -C -l 300 &
> netperf -4 -H 127.0.0.1 -t TCP_CRR -c -C -l 300 &
> netperf -4 -H 127.0.0.1 -t TCP_CRR -c -C -l 300 &
> netperf -4 -H 127.0.0.1 -t TCP_CRR -c -C -l 300 &
> netperf -4 -H 127.0.0.1 -t TCP_CRR -c -C -l 300 &
> netperf -4 -H 127.0.0.1 -t TCP_CRR -c -C -l 300 &
> netperf -4 -H 127.0.0.1 -t TCP_CRR -c -C -l 300 &
> netperf -4 -H 127.0.0.1 -t TCP_CRR -c -C -l 300 &
> netperf -4 -H 127.0.0.1 -t TCP_CRR -c -C -l 300 &
> wait
--
Kees Cook
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