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2026-04-15 - 12:17
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rack1slot1.osadl.org (updated Wed Apr 15, 2026 00:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
189842216149,23sleep20-21swapper/219:08:582
190192210160,24sleep00-21swapper/019:09:240
189602209158,25sleep30-21swapper/319:08:393
190252204149,21sleep10-21swapper/119:09:291
296282640,0sleep10-21swapper/122:13:271
205992180,0sleep020603-21cron20:20:000
19164991713,4cyclictest21-21ksoftirqd/121:27:351
217612150,0sleep1201rcuc/121:20:201
19164991410,4cyclictest56-21kworker/1:119:58:021
19164991410,4cyclictest21-21ksoftirqd/100:04:221
247732130,0sleep20-21swapper/222:05:352
1916499128,4cyclictest56-21kworker/1:122:34:461
19161991210,1cyclictest12003-21dump-pmu-power21:10:000
1916499110,11cyclictest0-21swapper/121:05:141
1916199119,1cyclictest9-21ksoftirqd/020:00:000
1916199112,4cyclictest22648-21latency_hist22:05:000
1917799109,1cyclictest35-21ksoftirqd/322:10:003
1917799109,1cyclictest35-21ksoftirqd/320:50:003
1917799109,1cyclictest35-21ksoftirqd/319:55:003
1917799101,7cyclictest22017-1kworker/u9:121:38:323
1916999100,9cyclictest13930-21ssh23:16:262
1916999100,2cyclictest0-21swapper/223:41:042
1916999100,2cyclictest0-21swapper/220:15:212
1916499106,4cyclictest21-21ksoftirqd/123:53:101
1916499106,4cyclictest21-21ksoftirqd/120:54:021
1916499106,4cyclictest0-21swapper/120:42:501
1916199108,1cyclictest9-21ksoftirqd/019:40:000
1916199101,4cyclictest25416-21latency_hist20:30:000
1916199100,5cyclictest0-21swapper/021:10:130
191779998,1cyclictest35-21ksoftirqd/323:40:003
191779998,1cyclictest35-21ksoftirqd/321:15:003
191779998,0cyclictest35-21ksoftirqd/320:45:003
191699998,1cyclictest28-21ksoftirqd/223:50:002
191699997,1cyclictest28-21ksoftirqd/220:00:132
191699997,1cyclictest28-21ksoftirqd/219:20:002
191699990,6cyclictest3930-21/usr/sbin/munin23:05:132
191649998,1cyclictest21-21ksoftirqd/122:25:171
191649990,5cyclictest0-21swapper/120:45:131
191619998,1cyclictest321-21ssh21:35:140
191619997,1cyclictest9-21ksoftirqd/021:05:010
191619994,3cyclictest0-21swapper/023:38:460
191619991,4cyclictest32311-21cat23:00:000
191619990,4cyclictest6496-21sed19:50:000
9266280,0sleep30-21swapper/321:45:223
372280,1sleep10-21swapper/119:35:151
191779987,1cyclictest35-21ksoftirqd/322:00:003
191779986,1cyclictest35-21ksoftirqd/320:29:113
191779983,4cyclictest35-21ksoftirqd/322:54:103
191779983,3cyclictest9467-21nscd22:43:113
191779982,3cyclictest11999-21diskmemload23:30:133
191699987,1cyclictest28-21ksoftirqd/221:55:012
191699987,1cyclictest28-21ksoftirqd/219:45:002
191699986,1cyclictest61650irq/122-eno122:50:162
191699986,1cyclictest61650irq/122-eno122:12:352
191699986,1cyclictest61650irq/122-eno121:20:212
191699986,1cyclictest61650irq/122-eno100:35:162
191699986,1cyclictest28-21ksoftirqd/222:45:012
191699986,1cyclictest28-21ksoftirqd/221:15:422
191699986,1cyclictest28-21ksoftirqd/200:15:002
191699980,8cyclictest0-21swapper/221:12:452
191699980,6cyclictest29683-21/usr/sbin/munin19:30:152
191699980,3cyclictest0-21swapper/220:20:122
191649988,0cyclictest21-21ksoftirqd/123:46:001
191649988,0cyclictest21-21ksoftirqd/123:43:121
191649988,0cyclictest21-21ksoftirqd/123:28:541
191649988,0cyclictest21-21ksoftirqd/123:19:381
191649988,0cyclictest21-21ksoftirqd/123:00:301
191649988,0cyclictest21-21ksoftirqd/122:55:241
191649988,0cyclictest21-21ksoftirqd/122:46:361
191649988,0cyclictest21-21ksoftirqd/122:20:041
191649988,0cyclictest21-21ksoftirqd/122:15:141
191649988,0cyclictest21-21ksoftirqd/122:08:501
191649988,0cyclictest21-21ksoftirqd/121:17:371
191649988,0cyclictest21-21ksoftirqd/120:33:181
191649988,0cyclictest21-21ksoftirqd/100:13:241
191649987,1cyclictest21-21ksoftirqd/123:35:171
191649987,1cyclictest21-21ksoftirqd/123:05:111
191649986,1cyclictest111rcu_preempt00:32:391
191649984,4cyclictest0-21swapper/122:01:091
191649980,8cyclictest0-21swapper/120:10:131
191649980,8cyclictest0-21swapper/119:49:091
191649980,7cyclictest0-21swapper/100:35:131
191649980,6cyclictest21-21ksoftirqd/121:00:001
191619986,1cyclictest19486-21ssh00:05:310
191619986,1cyclictest16307-21sort21:55:170
191619986,1cyclictest10349-21ssh00:36:240
191619985,0cyclictest11999-21diskmemload21:33:120
191619983,2cyclictest240-21systemd-journal22:36:280
191619981,6cyclictest6148-21ssh23:50:060
191619981,1cyclictest6970-21ssh23:08:450
191619981,1cyclictest14384-21ssh23:17:400
191619980,7cyclictest19850-21df19:10:120
191619980,7cyclictest14570-21ssh21:54:290
191619980,7cyclictest12634-21ssh23:57:370
191619980,5cyclictest11999-21diskmemload23:10:120
191619980,2cyclictest0-21swapper/019:20:120
191779977,0cyclictest35-21ksoftirqd/323:15:153
191779977,0cyclictest35-21ksoftirqd/300:07:533
191779976,1cyclictest35-21ksoftirqd/323:20:143
191779976,1cyclictest35-21ksoftirqd/323:15:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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