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2025-09-18 - 02:28
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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 50 highest latencies:
System rack1slot1.osadl.org (updated Thu Sep 18, 2025 00:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
311652207150,44sleep30-21swapper/319:07:163
310762203149,41sleep10-21swapper/119:06:051
292092200159,27sleep20-21swapper/219:05:022
313702199161,25sleep00-21swapper/019:09:550
220002560,0sleep20-21swapper/222:37:542
3149699230,0cyclictest0-21swapper/223:30:102
21102150,0sleep32071-21perf00:25:013
93242140,0sleep10-21swapper/120:35:171
31475991313,0cyclictest9-21ksoftirqd/022:55:170
31475991312,1cyclictest9-21ksoftirqd/000:15:230
3147599128,1cyclictest9-21ksoftirqd/022:50:150
31475991211,1cyclictest9-21ksoftirqd/022:05:010
31475991210,1cyclictest9-21ksoftirqd/023:40:000
31475991210,1cyclictest9-21ksoftirqd/021:15:000
31475991210,1cyclictest11883-21aten2.4-expect19:35:130
3147599120,5cyclictest254-21systemd-journal23:50:170
3149699119,1cyclictest28-21ksoftirqd/221:00:002
3148499111,8cyclictest0-21swapper/100:10:141
3147599119,1cyclictest9-21ksoftirqd/022:45:140
3147599119,1cyclictest9-21ksoftirqd/020:05:000
31475991110,1cyclictest9-21ksoftirqd/000:40:000
3147599111,5cyclictest22907-21cat23:25:000
3149699109,1cyclictest28-21ksoftirqd/222:25:202
3149699109,1cyclictest28-21ksoftirqd/222:25:202
3149699108,1cyclictest24420-21tune2fs00:10:182
3147599109,1cyclictest9-21ksoftirqd/023:45:000
3147599109,1cyclictest9-21ksoftirqd/022:35:000
3147599109,1cyclictest9-21ksoftirqd/021:40:160
3147599109,1cyclictest9-21ksoftirqd/021:25:140
3147599108,1cyclictest9-21ksoftirqd/019:55:120
3147599108,1cyclictest9-21ksoftirqd/019:20:000
31475991010,0cyclictest9-21ksoftirqd/000:05:180
299402100,0sleep10-21swapper/100:17:461
224782100,0sleep10-21swapper/123:23:551
315059992,6cyclictest9955-21apt-get21:35:143
315059990,4cyclictest31641-21wc20:15:163
314969998,1cyclictest28-21ksoftirqd/222:55:012
314969998,1cyclictest28-21ksoftirqd/200:30:162
314969997,1cyclictest28-21ksoftirqd/220:38:422
314969997,1cyclictest28-21ksoftirqd/220:29:592
314969990,8cyclictest0-21swapper/221:20:462
314969990,8cyclictest0-21swapper/220:30:172
314759998,1cyclictest9-21ksoftirqd/021:30:160
314759998,1cyclictest9-21ksoftirqd/021:10:000
314759998,1cyclictest9-21ksoftirqd/020:55:010
314759997,1cyclictest9-21ksoftirqd/023:00:170
314759997,1cyclictest9-21ksoftirqd/022:35:210
314759997,1cyclictest9-21ksoftirqd/021:15:140
314759997,1cyclictest9-21ksoftirqd/020:10:000
314759997,1cyclictest9-21ksoftirqd/019:45:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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