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2022-12-04 - 02:05

x86 Intel Celeron G3900 @2800 MHz, Linux 4.16.15-rt7 (Profile)

Latency plot of system in rack #c, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h200 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 376 highest latencies:
System rackcslot2.osadl.org (updated Sat Dec 03, 2022 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3131526957,8sleep00-21swapper/007:06:010
3120526957,8sleep10-21swapper/107:04:511
216382200,0sleep00-21swapper/010:11:550
173132200,0sleep10-21swapper/109:13:371
3172399187,3cyclictest20735-21munin-run08:03:211
31723991713,1cyclictest24-21ksoftirqd/112:21:581
31723991614,1cyclictest2840-21ls11:23:461
31723991612,1cyclictest24-21ksoftirqd/111:41:491
31723991610,6cyclictest0-21swapper/107:33:421
31723991610,1cyclictest24-21ksoftirqd/111:01:461
31723991610,0cyclictest0-21swapper/110:41:501
31723991610,0cyclictest0-21swapper/110:17:091
31723991610,0cyclictest0-21swapper/107:41:141
31722991615,0cyclictest9089-21chrt08:53:530
31722991614,1cyclictest23155-21ssh11:57:260
31722991610,6cyclictest0-21swapper/012:21:300
31722991610,6cyclictest0-21swapper/008:48:500
3172399159,2cyclictest91rcu_preempt09:33:461
3172399159,1cyclictest24-21ksoftirqd/108:16:111
3172399157,3cyclictest24-21ksoftirqd/111:08:261
31723991515,0cyclictest28841-21ssh09:32:061
31723991515,0cyclictest27693-21sshd08:18:441
31723991515,0cyclictest10367-21kworker/1:211:20:391
31723991514,1cyclictest0-21swapper/108:34:551
31723991514,0cyclictest27568-21ssh10:20:561
31723991513,1cyclictest24-21ksoftirqd/109:18:441
31723991513,0cyclictest24-21ksoftirqd/111:14:051
31723991513,0cyclictest24-21ksoftirqd/107:21:441
31723991512,3cyclictest24-21ksoftirqd/111:03:441
31723991510,5cyclictest0-21swapper/111:32:301
31723991510,5cyclictest0-21swapper/109:56:471
31723991510,5cyclictest0-21swapper/109:49:361
31722991515,0cyclictest9254-21ssh12:26:170
31722991515,0cyclictest0-21swapper/010:58:480
31722991515,0cyclictest0-21swapper/008:26:170
31722991514,1cyclictest28822-21ssh12:05:430
31722991514,1cyclictest23692-21ssh11:58:350
31722991514,0cyclictest7-21ksoftirqd/010:53:210
31722991514,0cyclictest7-21ksoftirqd/009:03:210
31722991514,0cyclictest1764-21sh09:38:500
31722991514,0cyclictest13634-21ssh09:08:260
31722991513,1cyclictest93750irq/100-eth0-rx12:13:220
31722991513,1cyclictest243492sleep011:08:040
31722991510,5cyclictest0-21swapper/011:29:530
31722991510,5cyclictest0-21swapper/007:55:430
31722991510,4cyclictest0-21swapper/009:56:260
31722991510,0cyclictest0-21swapper/010:30:040
3172399149,3cyclictest24-21ksoftirqd/108:46:441
3172399146,3cyclictest24-21ksoftirqd/112:13:331
3172399146,3cyclictest24-21ksoftirqd/109:43:351
3172399145,3cyclictest18015-21interrupts11:48:381
3172399145,1cyclictest91rcu_preempt09:58:211
31723991414,0cyclictest24-21ksoftirqd/112:28:451
31723991414,0cyclictest24-21ksoftirqd/112:08:221
31723991414,0cyclictest24-21ksoftirqd/111:58:211
31723991414,0cyclictest24-21ksoftirqd/110:23:241
31723991414,0cyclictest10232-21awk10:43:431
31723991413,1cyclictest24-21ksoftirqd/111:37:171
31723991412,2cyclictest9201-21apache212:03:331
31723991412,1cyclictest22645-21latency_hist08:08:211
31723991412,1cyclictest19290-21apache_accesses10:08:341
31723991412,1cyclictest167462sleep107:52:221
31723991412,1cyclictest0-21swapper/110:29:371
31723991411,1cyclictest32268-1kworker/u5:209:38:321
31723991410,2cyclictest24-21ksoftirqd/107:28:351
31723991410,1cyclictest91rcu_preempt12:27:061
31723991410,1cyclictest91rcu_preempt10:34:341
31722991414,0cyclictest20475-21ssh11:53:210
31722991414,0cyclictest17096-21ssh11:48:030
31722991413,0cyclictest29406-21ssh11:14:390
31722991412,1cyclictest9201-21apache209:15:260
31722991412,1cyclictest9201-21apache208:34:390
31722991412,1cyclictest798-21apache211:10:300
31722991412,1cyclictest29871-21sort10:23:450
31722991412,1cyclictest16743-21rm10:54:180
31722991411,2cyclictest93750irq/100-eth0-rx09:59:310
31722991411,2cyclictest93750irq/100-eth0-rx09:31:500
31722991410,3cyclictest9223-21apache210:38:070
31722991410,3cyclictest0-21swapper/010:13:570
3172399137,2cyclictest5860-21apache_volume08:48:351
3172399135,3cyclictest24-21ksoftirqd/108:58:461
3172399134,1cyclictest32264-21cron08:33:211
31723991313,0cyclictest24-21ksoftirqd/108:42:451
31723991313,0cyclictest24-21ksoftirqd/107:08:381
31723991312,1cyclictest93650irq/99-eth0-rx-10:48:251
31723991312,1cyclictest9223-21apache212:33:291
31723991312,1cyclictest9223-21apache209:09:191
31723991312,1cyclictest597-21avahi-daemon10:53:251
31723991312,1cyclictest28584-21/usr/sbin/munin08:23:431
31723991312,1cyclictest24-21ksoftirqd/107:13:351
31723991311,1cyclictest9223-21apache209:23:311
31723991311,1cyclictest9223-21apache207:43:301
31723991311,1cyclictest24-21ksoftirqd/109:03:371
31723991311,1cyclictest14251-21/usr/sbin/munin11:43:371
31723991310,3cyclictest0-21swapper/108:53:441
31723991310,3cyclictest0-21swapper/108:13:131
31723991310,1cyclictest93650irq/99-eth0-rx-11:53:321
31722991313,0cyclictest0-21swapper/007:48:220
31722991312,1cyclictest93650irq/99-eth0-rx-11:18:370
31722991312,1cyclictest25520-21apache207:14:480
31722991312,1cyclictest0-21swapper/008:32:220
31722991312,1cyclictest0-21swapper/007:38:490
31722991311,2cyclictest93650irq/99-eth0-rx-07:08:320
31722991311,1cyclictest93750irq/100-eth0-rx12:28:310
31722991311,1cyclictest93750irq/100-eth0-rx11:34:490
31722991311,1cyclictest93750irq/100-eth0-rx10:44:310
31722991311,1cyclictest93750irq/100-eth0-rx10:19:360
31722991311,1cyclictest93650irq/99-eth0-rx-09:48:390
31722991311,1cyclictest9223-21apache210:38:340
31722991311,1cyclictest9201-21apache208:02:560
31722991311,1cyclictest7657-21/usr/sbin/munin07:28:420
31722991311,1cyclictest16501-21munin-node11:38:340
31722991311,1cyclictest0-21swapper/009:23:560
31722991310,3cyclictest0-21swapper/011:25:590
31722991310,3cyclictest0-21swapper/009:20:510
31722991310,3cyclictest0-21swapper/008:43:230
31722991310,3cyclictest0-21swapper/008:38:220
31722991310,3cyclictest0-21swapper/008:07:040
31722991310,3cyclictest0-21swapper/007:27:110
31722991310,2cyclictest93750irq/100-eth0-rx12:08:410
31722991310,2cyclictest0-21swapper/009:33:320
31722991310,2cyclictest0-21swapper/008:18:270
31722991310,1cyclictest93750irq/100-eth0-rx12:33:420
31722991310,1cyclictest93750irq/100-eth0-rx10:03:250
31722991310,0cyclictest0-21swapper/009:46:450
31722991310,0cyclictest0-21swapper/008:08:310
31722991310,0cyclictest0-21swapper/007:43:500
31722991310,0cyclictest0-21swapper/007:34:320
31723991211,1cyclictest9223-21apache210:03:331
31723991210,1cyclictest0-21swapper/107:53:311
31723991210,1cyclictest0-21swapper/107:23:341
31722991210,1cyclictest0-21swapper/009:03:400
31722991210,1cyclictest0-21swapper/008:13:350
31722991210,0cyclictest0-21swapper/007:18:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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