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2026-03-27 - 08:18
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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 Mar 27, 2026 00:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
277362230157,24sleep20-21swapper/219:09:392
274892217161,44sleep30-21swapper/319:06:273
275122212152,46sleep10-21swapper/119:06:451
276722204148,42sleep00-21swapper/019:08:490
112302740,0sleep10-21swapper/120:45:211
39892650,0sleep10-21swapper/123:05:141
181542180,0sleep121-21ksoftirqd/100:05:191
27865991413,1cyclictest28-21ksoftirqd/223:19:362
27865991413,1cyclictest28-21ksoftirqd/221:27:332
27865991313,0cyclictest28-21ksoftirqd/222:35:192
27865991312,1cyclictest28-21ksoftirqd/223:36:362
27873991210,1cyclictest35-21ksoftirqd/319:55:013
27873991210,1cyclictest35-21ksoftirqd/300:15:133
27865991211,1cyclictest28-21ksoftirqd/222:24:112
27865991211,1cyclictest28-21ksoftirqd/222:12:412
27865991210,1cyclictest28-21ksoftirqd/221:55:002
100332120,0sleep20-21swapper/200:36:182
2787399119,1cyclictest35-21ksoftirqd/323:20:173
2786599119,1cyclictest28-21ksoftirqd/219:55:022
2786599119,1cyclictest28-21ksoftirqd/200:15:132
27865991111,0cyclictest28-21ksoftirqd/222:51:092
27865991110,1cyclictest28-21ksoftirqd/221:56:482
27865991110,1cyclictest28-21ksoftirqd/221:35:202
2784699119,1cyclictest9-21ksoftirqd/000:19:590
2784699111,5cyclictest4694-21perf22:25:000
2787399109,1cyclictest35-21ksoftirqd/323:05:153
2787399109,1cyclictest35-21ksoftirqd/322:30:163
2787399109,1cyclictest35-21ksoftirqd/322:00:153
2787399109,1cyclictest35-21ksoftirqd/320:00:003
2787399108,1cyclictest35-21ksoftirqd/300:15:003
2787399108,1cyclictest28515-21diskstats22:55:143
2786599109,1cyclictest28-21ksoftirqd/223:20:162
2786599109,1cyclictest28-21ksoftirqd/222:07:022
2786599109,1cyclictest28-21ksoftirqd/221:20:142
2786599109,1cyclictest28-21ksoftirqd/200:20:152
2786599109,1cyclictest28-21ksoftirqd/200:10:132
2786599108,1cyclictest28-21ksoftirqd/222:30:152
2786599108,1cyclictest28-21ksoftirqd/200:30:192
27865991010,0cyclictest28-21ksoftirqd/223:27:452
27865991010,0cyclictest28-21ksoftirqd/219:55:002
2784699109,1cyclictest9-21ksoftirqd/000:30:120
2784699102,4cyclictest9566-21latency_hist20:45:000
2784699102,4cyclictest21307-21diskmemload00:14:590
26292100,0sleep021307-21diskmemload00:27:050
278739999,0cyclictest35-21ksoftirqd/323:55:173
278739999,0cyclictest35-21ksoftirqd/300:20:143
278739998,1cyclictest35-21ksoftirqd/323:40:173
278739998,1cyclictest35-21ksoftirqd/322:50:013
278739998,1cyclictest35-21ksoftirqd/322:30:003
278739998,1cyclictest35-21ksoftirqd/300:00:113
278739998,0cyclictest35-21ksoftirqd/322:50:163
278739997,1cyclictest35-21ksoftirqd/323:45:113
278739997,1cyclictest35-21ksoftirqd/323:25:123
278739997,1cyclictest35-21ksoftirqd/322:35:163
278739996,2cyclictest707-21snmpd19:48:123
278659998,1cyclictest28-21ksoftirqd/223:55:192
278659998,1cyclictest28-21ksoftirqd/222:55:162
278659998,1cyclictest28-21ksoftirqd/222:00:122
278659998,1cyclictest28-21ksoftirqd/221:40:102
278659998,1cyclictest28-21ksoftirqd/220:55:132
278659998,1cyclictest28-21ksoftirqd/220:25:182
278659998,1cyclictest17417-21ssh22:40:162
278659997,1cyclictest28-21ksoftirqd/222:45:162
278659997,1cyclictest28-21ksoftirqd/222:25:122
278659997,1cyclictest28-21ksoftirqd/221:15:112
278659997,1cyclictest28-21ksoftirqd/220:10:132
278659997,1cyclictest28-21ksoftirqd/219:20:112
278659997,1cyclictest28-21ksoftirqd/200:05:172
278469992,1cyclictest26883-21wc23:35:110
278739988,0cyclictest35-21ksoftirqd/323:15:193
278739988,0cyclictest35-21ksoftirqd/321:40:203
278739988,0cyclictest35-21ksoftirqd/321:22:513
278739988,0cyclictest35-21ksoftirqd/320:50:183
278739988,0cyclictest35-21ksoftirqd/320:10:133
278739988,0cyclictest35-21ksoftirqd/319:14:563
278739987,1cyclictest35-21ksoftirqd/322:40:173
278739987,1cyclictest35-21ksoftirqd/321:35:193
278739987,1cyclictest35-21ksoftirqd/300:07:553
278739986,1cyclictest707-21snmpd23:13:243
278739986,1cyclictest707-21snmpd23:00:283
278739986,1cyclictest707-21snmpd20:24:373
278739986,1cyclictest35-21ksoftirqd/323:35:123
278739986,1cyclictest35-21ksoftirqd/322:19:593
278739980,6cyclictest0-21swapper/321:25:103
278739980,2cyclictest0-21swapper/319:15:103
278659987,1cyclictest28-21ksoftirqd/223:45:102
278659987,1cyclictest28-21ksoftirqd/223:08:062
278659987,1cyclictest28-21ksoftirqd/221:30:182
278659987,1cyclictest28-21ksoftirqd/220:50:192
278659987,1cyclictest28-21ksoftirqd/220:40:102
278659987,1cyclictest28-21ksoftirqd/200:00:142
278659986,1cyclictest61650irq/122-eno123:50:122
278659986,1cyclictest61650irq/122-eno121:10:122
278659986,1cyclictest28-21ksoftirqd/223:40:372
278659986,1cyclictest28-21ksoftirqd/223:30:132
278659986,1cyclictest28-21ksoftirqd/223:11:232
278659986,1cyclictest28-21ksoftirqd/221:49:032
278659985,1cyclictest28-21ksoftirqd/219:30:182
278659980,0cyclictest21307-21diskmemload00:25:212
278469986,1cyclictest9143-21ssh23:10:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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