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2026-04-03 - 18:38
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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 Fri Apr 03, 2026 12:45:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
174952207157,24sleep00-21swapper/007:09:100
174502203162,27sleep20-21swapper/207:08:342
174412198160,25sleep30-21swapper/307:08:273
172452197157,27sleep10-21swapper/107:05:521
222372750,0sleep121-21ksoftirqd/110:05:141
229812650,0sleep121-21ksoftirqd/110:47:561
27342130,0sleep30-21swapper/311:45:173
17662991312,1cyclictest35-21ksoftirqd/310:50:003
1763799130,13cyclictest0-21swapper/012:30:170
1765499120,12cyclictest0-21swapper/208:40:152
1765499120,0cyclictest0-21swapper/211:20:122
1764899120,11cyclictest0-21swapper/111:20:111
1763799123,4cyclictest25897-21latency_hist11:35:000
1766299119,1cyclictest35-21ksoftirqd/309:55:013
1766299119,1cyclictest35-21ksoftirqd/309:55:003
1765499119,1cyclictest483-21sshd11:00:182
1765499110,1cyclictest25623-21/usr/sbin/munin07:25:192
1763799110,0cyclictest0-21swapper/011:20:110
66802100,0sleep10-21swapper/109:00:151
1766299107,1cyclictest35-21ksoftirqd/307:35:013
1766299100,7cyclictest28712-21kworker/u8:111:06:373
1765499103,3cyclictest61650irq/122-eno112:25:112
1763799103,6cyclictest25776-21ntp_states12:15:180
1763799102,4cyclictest29350-21perf10:14:590
5704290,3sleep20-21swapper/211:07:252
176629998,1cyclictest35-21ksoftirqd/312:10:013
176629990,8cyclictest0-21swapper/309:25:033
176629990,3cyclictest240-21systemd-journal11:00:003
176549998,0cyclictest24585-21apt-get12:15:122
176549991,6cyclictest20204-21munin-node10:43:342
176379992,4cyclictest25404-21latency_hist07:24:590
176629987,1cyclictest35-21ksoftirqd/312:05:003
176629986,1cyclictest35-21ksoftirqd/307:45:003
176629982,2cyclictest0-21swapper/312:15:163
176629981,3cyclictest10500-21diskmemload10:10:023
176549987,1cyclictest28-21ksoftirqd/207:35:002
176549986,1cyclictest61650irq/122-eno112:05:142
176549986,1cyclictest61650irq/122-eno109:51:532
176549986,1cyclictest61650irq/122-eno109:51:522
176549986,1cyclictest28-21ksoftirqd/208:07:422
176549983,3cyclictest548-21systemd-logind11:55:182
176549982,5cyclictest3703-21/usr/sbin/munin12:30:122
176549980,5cyclictest561-21nscd11:31:042
176379987,1cyclictest9-21ksoftirqd/009:40:000
176379983,4cyclictest20468-1kworker/u9:210:25:190
176379982,3cyclictest0-21swapper/007:50:100
176379981,6cyclictest16585-21ssh09:15:410
176379980,7cyclictest8570-21ssh09:46:560
176379980,7cyclictest7446-21cat11:10:130
176379980,7cyclictest30505-21ssh12:21:030
176379980,7cyclictest26829-21ssh10:52:590
176379980,7cyclictest24474-21ssh10:07:210
176379980,7cyclictest20746-21/usr/sbin/munin12:10:130
176379980,7cyclictest20303-21ssh11:25:240
176379980,7cyclictest18668-21ssh10:41:420
176379980,7cyclictest12955-21ssh09:53:280
176379980,7cyclictest12955-21ssh09:53:270
176379980,7cyclictest12495-21ssh10:35:050
176379980,7cyclictest12072-21ssh10:34:360
176379980,7cyclictest0-21swapper/009:11:000
176379980,6cyclictest14072-21ntpq12:00:180
21688270,0sleep20-21swapper/212:10:152
176629976,1cyclictest35-21ksoftirqd/311:20:013
176629976,1cyclictest35-21ksoftirqd/310:25:003
176629976,1cyclictest35-21ksoftirqd/308:30:003
176629976,1cyclictest35-21ksoftirqd/307:15:013
176629976,0cyclictest35-21ksoftirqd/310:40:123
176629975,1cyclictest981-21ssh12:25:173
176629975,1cyclictest7469-21ssh11:51:393
176629975,1cyclictest6977-21ssh11:10:123
176629975,1cyclictest4660-21ssh09:41:383
176629975,1cyclictest35-21ksoftirqd/308:00:013
176629975,1cyclictest31208-21ssh12:22:553
176629975,1cyclictest20219-21ssh10:01:123
176629975,1cyclictest16673-21ssh11:20:563
176629973,2cyclictest240-21systemd-journal08:40:013
176629973,1cyclictest10500-21diskmemload10:29:223
176629971,4cyclictest568-21nscd09:31:433
176629970,6cyclictest19924-21ntpq09:20:163
176629970,5cyclictest14628-21apt-get08:10:113
176629970,4cyclictest0-21swapper/310:15:103
176629970,3cyclictest0-21swapper/311:40:163
176629970,2cyclictest0-21swapper/312:10:113
176629970,1cyclictest0-21swapper/311:30:463
176549976,1cyclictest61650irq/122-eno112:00:172
176549976,1cyclictest61650irq/122-eno111:28:042
176549976,1cyclictest61650irq/122-eno109:42:142
176549976,1cyclictest61650irq/122-eno109:39:362
176549976,1cyclictest61650irq/122-eno109:15:142
176549976,1cyclictest61650irq/122-eno107:45:212
176549976,1cyclictest28-21ksoftirqd/207:24:592
176549976,0cyclictest61650irq/122-eno109:14:442
176549975,1cyclictest22030-21ssh10:45:232
176549974,2cyclictest19447-21fschecks_time09:20:132
176549974,1cyclictest61650irq/122-eno110:34:362
176549971,3cyclictest0-21swapper/209:47:212
176489977,0cyclictest149252sleep112:01:021
176489970,7cyclictest0-21swapper/109:42:391
176489970,5cyclictest0-21swapper/110:32:011
176379975,1cyclictest29852-21ssh10:55:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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