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2026-04-16 - 20:14
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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 Thu Apr 16, 2026 12:45:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3066125580,11sleep121-21ksoftirqd/107:05:231
3066125580,11sleep121-21ksoftirqd/107:05:231
308292222143,64sleep00-21swapper/007:05:510
308292222143,64sleep00-21swapper/007:05:510
290372208151,45sleep20-21swapper/207:05:052
290372208151,45sleep20-21swapper/207:05:052
310702201161,26sleep30-21swapper/307:09:013
310702201161,26sleep30-21swapper/307:09:003
7072630,0sleep30-21swapper/311:26:313
38992240,0sleep10-21swapper/108:25:141
178252180,0sleep00-21swapper/009:41:030
3124899130,0cyclictest0-21swapper/010:00:100
31262991211,1cyclictest0-21swapper/212:20:202
3124899123,4cyclictest30595-21date08:15:000
3126299119,1cyclictest0-21swapper/210:17:502
3126299115,4cyclictest28-21ksoftirqd/208:24:592
31262991110,1cyclictest0-21swapper/209:58:092
3127399108,1cyclictest35-21ksoftirqd/311:00:003
3126299109,1cyclictest0-21swapper/212:17:352
3126299109,1cyclictest0-21swapper/210:57:142
3126299109,1cyclictest0-21swapper/210:50:272
3126299108,1cyclictest28-21ksoftirqd/207:25:002
3126299105,4cyclictest0-21swapper/209:17:372
3126299104,0cyclictest61650irq/122-eno109:45:082
3126299101,8cyclictest557-21irqbalance11:07:162
3124899103,6cyclictest9627-21grep11:40:000
3124899103,4cyclictest13401-21perf10:20:010
312739998,1cyclictest35-21ksoftirqd/312:20:133
312739997,1cyclictest35-21ksoftirqd/307:40:003
312739990,1cyclictest0-21swapper/308:10:113
312629998,1cyclictest0-21swapper/212:33:082
312629998,1cyclictest0-21swapper/212:28:592
312629998,1cyclictest0-21swapper/211:16:162
312629998,1cyclictest0-21swapper/211:14:052
312629998,1cyclictest0-21swapper/210:32:202
312629998,1cyclictest0-21swapper/210:26:442
312629998,1cyclictest0-21swapper/210:11:542
312629997,1cyclictest28-21ksoftirqd/207:24:592
312629996,3cyclictest0-21swapper/208:45:142
312629996,2cyclictest0-21swapper/212:37:512
312629995,4cyclictest0-21swapper/209:37:252
312629990,8cyclictest0-21swapper/212:10:292
312629990,7cyclictest18990-21apt-get07:50:102
312489993,5cyclictest14668-21memory10:20:150
312489992,4cyclictest14630-21latency11:45:160
312489991,4cyclictest4250-21sed07:20:010
312489990,4cyclictest2047-21perf11:30:000
312489990,4cyclictest14654-21munin-run08:50:010
312739987,1cyclictest35-21ksoftirqd/308:55:003
312739986,2cyclictest1747-21ntpd12:05:433
312739982,3cyclictest240-21systemd-journal10:17:393
312629988,0cyclictest0-21swapper/209:27:342
312629987,1cyclictest0-21swapper/211:52:112
312629987,1cyclictest0-21swapper/211:39:532
312629987,1cyclictest0-21swapper/210:08:382
312629986,1cyclictest61650irq/122-eno110:20:112
312629986,1cyclictest61650irq/122-eno109:20:202
312629986,1cyclictest23892-21sh11:57:432
312629985,2cyclictest0-21swapper/211:28:092
312629982,4cyclictest24289-21diskmemload10:45:142
312629980,5cyclictest24289-21diskmemload09:10:112
312629980,5cyclictest0-21swapper/211:21:132
312629980,5cyclictest0-21swapper/209:54:132
312629980,3cyclictest0-21swapper/210:36:312
312489988,0cyclictest151772sleep009:39:150
312489987,1cyclictest16221-21ssh11:05:140
312489987,1cyclictest10937-21ssh09:33:100
312489986,1cyclictest9-21ksoftirqd/007:35:000
312489986,1cyclictest7014-21ssh12:18:390
312489981,6cyclictest915-1kworker/u9:210:05:410
312489980,7cyclictest27007-21ssh10:35:460
312489980,6cyclictest0-21swapper/012:00:450
19269287,0sleep10-21swapper/111:50:251
312739975,2cyclictest1747-21ntpd10:34:543
312739975,1cyclictest5143-21ssh10:08:053
312739975,1cyclictest4168-21/usr/sbin/munin09:25:113
312739975,1cyclictest35-21ksoftirqd/308:20:003
312739975,1cyclictest18103-21ssh09:41:503
312739975,1cyclictest16751-21ssh11:48:523
312739973,3cyclictest0-21swapper/311:05:153
312739973,2cyclictest240-21systemd-journal08:48:523
312739973,1cyclictest24289-21diskmemload09:17:563
312739971,3cyclictest13641-21apt-get10:20:113
312739970,3cyclictest0-21swapper/310:40:353
312629977,0cyclictest0-21swapper/207:55:402
312629976,1cyclictest61650irq/122-eno112:05:122
312629976,1cyclictest61650irq/122-eno111:03:562
312629976,1cyclictest61650irq/122-eno109:44:372
312629976,1cyclictest61650irq/122-eno108:50:212
312629976,1cyclictest0-21swapper/211:44:022
312629976,1cyclictest0-21swapper/210:40:462
312629975,1cyclictest61650irq/122-eno108:30:132
312629975,1cyclictest28-21ksoftirqd/207:35:002
312629974,2cyclictest30957-21apt-get10:00:102
312629974,2cyclictest16209-21perf07:45:002
312629974,1cyclictest61650irq/122-eno111:45:112
312629973,2cyclictest61650irq/122-eno109:05:162
312629970,6cyclictest0-21swapper/209:30:052
312629970,2cyclictest19565-21sh09:00:002
312559970,6cyclictest0-21swapper/108:15:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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