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2026-08-04 - 01:59
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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 Tue Aug 04, 2026 00:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
56392213157,44sleep30-21swapper/319:08:153
56162206125,67sleep20-21swapper/219:07:582
54972205159,32sleep00-21swapper/019:06:230
55552198159,26sleep10-21swapper/119:07:081
57802750,1sleep121-21ksoftirqd/122:50:161
167312460,0sleep00-21swapper/022:20:110
167312460,0sleep00-21swapper/022:20:110
78612180,0sleep10-21swapper/122:05:421
5851991412,1cyclictest9-21ksoftirqd/020:30:000
286262140,0sleep10-21swapper/119:55:141
5866991211,1cyclictest35-21ksoftirqd/319:40:003
5866991211,1cyclictest35-21ksoftirqd/319:40:003
5858991211,1cyclictest28-21ksoftirqd/219:15:012
5851991212,0cyclictest0-21swapper/022:18:050
5866991110,1cyclictest35-21ksoftirqd/319:30:003
585899119,1cyclictest28-21ksoftirqd/221:30:002
585899119,1cyclictest28-21ksoftirqd/220:10:002
585899110,10cyclictest0-21swapper/200:20:182
585199119,1cyclictest9-21ksoftirqd/021:05:000
299012110,0sleep20-21swapper/222:38:412
586699109,1cyclictest35-21ksoftirqd/323:35:153
586699109,1cyclictest35-21ksoftirqd/323:15:003
586699109,1cyclictest35-21ksoftirqd/322:10:153
586699109,1cyclictest35-21ksoftirqd/300:10:013
586699108,1cyclictest35-21ksoftirqd/322:40:153
586699108,1cyclictest35-21ksoftirqd/322:40:003
586699108,1cyclictest35-21ksoftirqd/320:50:163
586699108,1cyclictest35-21ksoftirqd/320:35:003
586699108,1cyclictest35-21ksoftirqd/319:20:003
586699100,6cyclictest14392-21/usr/sbin/munin00:35:133
586699100,0cyclictest0-21swapper/322:57:473
585899109,1cyclictest28-21ksoftirqd/200:30:142
585899108,1cyclictest28-21ksoftirqd/223:05:132
585899108,1cyclictest28-21ksoftirqd/223:05:132
585899108,1cyclictest28-21ksoftirqd/200:25:152
5858991010,0cyclictest28-21ksoftirqd/221:50:002
5858991010,0cyclictest0-21swapper/200:35:122
585799100,0cyclictest0-21swapper/122:25:031
58669999,0cyclictest35-21ksoftirqd/322:20:123
58669999,0cyclictest35-21ksoftirqd/322:20:123
58669998,1cyclictest35-21ksoftirqd/323:15:143
58669998,1cyclictest35-21ksoftirqd/322:30:153
58669998,1cyclictest35-21ksoftirqd/321:10:003
58669998,0cyclictest35-21ksoftirqd/323:55:193
58669997,1cyclictest35-21ksoftirqd/322:50:163
58669997,1cyclictest35-21ksoftirqd/319:13:003
58669992,6cyclictest32712-21apt-get20:05:113
58669990,5cyclictest0-21swapper/321:18:593
58669990,4cyclictest9945-21apt-get20:25:113
58589998,1cyclictest28-21ksoftirqd/222:50:162
58589998,1cyclictest28-21ksoftirqd/220:50:002
58589990,8cyclictest26136-21cstates00:05:142
58579990,9cyclictest0-21swapper/123:09:511
58579990,9cyclictest0-21swapper/123:09:501
58579990,9cyclictest0-21swapper/122:58:381
58579990,9cyclictest0-21swapper/120:33:071
58579990,9cyclictest0-21swapper/119:37:071
58579990,9cyclictest0-21swapper/119:37:071
58579990,9cyclictest0-21swapper/119:25:551
58579990,9cyclictest0-21swapper/100:05:501
58579990,0cyclictest0-21swapper/121:17:521
58579990,0cyclictest0-21swapper/120:55:301
58519997,1cyclictest9-21ksoftirqd/019:15:000
58519995,0cyclictest31136-21diskmemload22:13:010
58519994,3cyclictest9-21ksoftirqd/000:22:310
58519992,3cyclictest26845-21perf22:35:000
58519990,7cyclictest0-21swapper/020:45:120
58669986,1cyclictest35-21ksoftirqd/300:15:153
58669986,1cyclictest31136-21diskmemload21:44:103
58669986,1cyclictest11301-21snmpd23:04:553
58669985,1cyclictest13650irq/124-ahci[0019:44:553
58669982,1cyclictest31136-21diskmemload23:30:263
58669981,1cyclictest15764-21runrttasks22:18:353
58669980,2cyclictest0-21swapper/321:35:133
58589988,0cyclictest28-21ksoftirqd/221:35:152
58589987,1cyclictest28-21ksoftirqd/223:20:012
58589987,1cyclictest28-21ksoftirqd/222:25:152
58589987,1cyclictest28-21ksoftirqd/221:00:002
58589987,1cyclictest28-21ksoftirqd/219:45:262
58589987,1cyclictest28-21ksoftirqd/219:15:012
58589986,1cyclictest61650irq/122-eno123:30:132
58589986,1cyclictest61650irq/122-eno121:55:152
58589986,1cyclictest61650irq/122-eno121:05:142
58589986,1cyclictest28-21ksoftirqd/200:15:152
58589986,1cyclictest11301-21snmpd23:25:402
58589986,1cyclictest11301-21snmpd19:20:332
58589986,1cyclictest11301-21snmpd00:10:122
58589985,2cyclictest569-21nscd22:15:542
58589984,2cyclictest240-21systemd-journal21:19:552
58589982,5cyclictest20632-21kworker/u8:221:50:382
58589980,3cyclictest31136-21diskmemload22:30:122
58589980,3cyclictest11301-21snmpd21:42:182
58579980,8cyclictest0-21swapper/123:45:421
58579980,8cyclictest0-21swapper/120:44:171
58579980,8cyclictest0-21swapper/100:39:261
58579980,0cyclictest0-21swapper/120:21:541
58579980,0cyclictest0-21swapper/120:10:421
58579980,0cyclictest0-21swapper/119:48:191
58579980,0cyclictest0-21swapper/100:28:141
58579980,0cyclictest0-21swapper/100:17:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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