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2026-04-13 - 07:19
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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 Mon Apr 13, 2026 00:45:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
107972213161,25sleep30-21swapper/319:09:573
107972213161,25sleep30-21swapper/319:09:573
107712202162,26sleep20-21swapper/219:09:342
107712202162,26sleep20-21swapper/219:09:342
105322199161,25sleep10-21swapper/119:06:291
105322199161,25sleep10-21swapper/119:06:291
86902197160,24sleep00-21swapper/019:05:070
86902197160,24sleep00-21swapper/019:05:060
76402800,0sleep10-21swapper/120:10:011
117982740,0sleep00-21swapper/021:20:000
1091599140,13cyclictest0-21swapper/223:16:202
10902991210,1cyclictest9-21ksoftirqd/023:15:000
102812120,0sleep00-21swapper/023:23:390
10915991110,1cyclictest28-21ksoftirqd/223:45:002
10915991110,1cyclictest28-21ksoftirqd/222:05:002
10915991110,1cyclictest28-21ksoftirqd/200:00:012
10902991110,1cyclictest9-21ksoftirqd/021:10:000
1090299111,5cyclictest7664-21perf20:10:010
1090299110,5cyclictest27687-21ssh21:40:100
1092399108,1cyclictest35-21ksoftirqd/320:25:003
1091599109,1cyclictest28-21ksoftirqd/223:10:012
1091599109,1cyclictest28-21ksoftirqd/220:34:592
1090299109,1cyclictest9-21ksoftirqd/019:20:010
1090299100,6cyclictest3160-21apt-get20:00:120
109239998,1cyclictest35-21ksoftirqd/323:05:013
109239992,7cyclictest693-21runrttasks21:15:103
109159996,1cyclictest61650irq/122-eno121:55:012
109159990,8cyclictest0-21swapper/222:33:022
109029999,0cyclictest9-21ksoftirqd/023:50:010
109029998,1cyclictest9-21ksoftirqd/023:29:590
109029998,1cyclictest9-21ksoftirqd/000:30:000
109029998,1cyclictest9-21ksoftirqd/000:09:590
109029995,2cyclictest240-21systemd-journal21:05:010
109029995,2cyclictest240-21systemd-journal21:05:000
109029990,4cyclictest26708-21tune2fs19:40:120
109239987,1cyclictest5384-21aten_r1power_cu00:00:133
109239987,1cyclictest3519-21diskmemload00:19:503
109239985,1cyclictest35-21ksoftirqd/319:25:003
109239985,1cyclictest30952-21ssh23:07:473
109239980,6cyclictest0-21swapper/300:24:433
109239980,4cyclictest23771-21apt-get19:35:113
109159984,3cyclictest23977-21munin-run23:00:012
109159980,8cyclictest0-21swapper/223:21:132
109159980,8cyclictest0-21swapper/223:04:532
109159980,8cyclictest0-21swapper/222:28:392
109159980,8cyclictest0-21swapper/221:45:102
109159980,8cyclictest0-21swapper/200:01:552
109159980,7cyclictest0-21swapper/221:15:402
109159980,0cyclictest0-21swapper/222:39:382
109159980,0cyclictest0-21swapper/222:23:452
109159980,0cyclictest0-21swapper/221:30:202
109099980,1cyclictest0-21swapper/123:46:011
109029988,0cyclictest9-21ksoftirqd/000:05:010
109029986,1cyclictest9-21ksoftirqd/023:20:000
109029986,1cyclictest9-21ksoftirqd/021:29:590
109029986,1cyclictest2940-21perf20:00:000
109029984,2cyclictest240-21systemd-journal20:34:540
109029981,6cyclictest6722-21ssh21:55:120
109029981,4cyclictest0-21swapper/022:03:200
109029980,7cyclictest29687-21tr23:05:200
109029980,5cyclictest3519-21diskmemload00:20:120
109029980,4cyclictest25545-21cat22:20:000
109239976,1cyclictest30704-21cat22:25:153
109239976,1cyclictest16779-21cat21:25:153
109239976,0cyclictest0-21swapper/320:55:183
109239975,1cyclictest35-21ksoftirqd/323:45:143
109239975,1cyclictest35-21ksoftirqd/323:00:013
109239975,1cyclictest35-21ksoftirqd/320:55:003
109239975,1cyclictest35-21ksoftirqd/300:10:003
109239974,1cyclictest31465-21ssh00:34:253
109239974,1cyclictest13650irq/124-ahci[0021:14:553
109239972,4cyclictest19664-21/usr/sbin/munin20:35:193
109239972,2cyclictest27361-21kworker/3:222:53:513
109239971,3cyclictest0-21swapper/323:50:123
109239970,5cyclictest0-21swapper/322:38:403
109239970,4cyclictest240-21systemd-journal19:17:073
109239970,2cyclictest0-21swapper/321:50:123
109159976,1cyclictest61650irq/122-eno123:50:012
109159976,1cyclictest61650irq/122-eno122:45:152
109159976,1cyclictest61650irq/122-eno119:45:172
109159976,1cyclictest61650irq/122-eno119:25:112
109159976,1cyclictest61650irq/122-eno119:15:152
109159976,1cyclictest28-21ksoftirqd/221:55:132
109159976,1cyclictest28-21ksoftirqd/221:10:012
109159976,1cyclictest28-21ksoftirqd/200:35:012
109159976,1cyclictest0-21swapper/221:15:012
109159973,3cyclictest769-21lldpd20:57:252
109159973,2cyclictest240-21systemd-journal20:41:552
109159972,4cyclictest61650irq/122-eno123:50:212
109159971,5cyclictest17393-21gltestperf22:50:172
109159970,7cyclictest0-21swapper/200:19:232
109159970,3cyclictest3519-21diskmemload23:10:122
109159970,0cyclictest0-21swapper/223:35:502
109159970,0cyclictest0-21swapper/223:25:042
109159970,0cyclictest0-21swapper/222:40:012
109159970,0cyclictest0-21swapper/222:17:202
109159970,0cyclictest0-21swapper/222:11:362
109159970,0cyclictest0-21swapper/222:08:442
109159970,0cyclictest0-21swapper/221:41:332
109159970,0cyclictest0-21swapper/221:35:302
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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