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2026-05-09 - 12:25
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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 Sat May 09, 2026 00:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
284592210171,25sleep00-21swapper/019:09:580
283722200160,26sleep20-21swapper/219:08:502
284352199160,26sleep30-21swapper/319:09:403
281582199160,25sleep10-21swapper/119:06:041
185402670,0sleep20-21swapper/219:55:112
15302190,1sleep21514-21perf19:20:002
24812150,0sleep22483-21cat23:35:122
305692140,0sleep30-21swapper/322:02:043
28535991413,1cyclictest8038-21ssh00:25:130
88342130,0sleep021434-21diskmemload23:43:320
88342130,0sleep021434-21diskmemload23:43:320
28535991211,1cyclictest9-21ksoftirqd/023:35:000
28538991110,1cyclictest35-21ksoftirqd/300:20:143
2853599119,1cyclictest9-21ksoftirqd/023:09:590
2853599119,1cyclictest9-21ksoftirqd/022:05:200
2853599119,1cyclictest9-21ksoftirqd/022:00:000
2853599119,1cyclictest9-21ksoftirqd/021:44:590
2853599119,1cyclictest9-21ksoftirqd/000:05:000
2853899109,1cyclictest35-21ksoftirqd/300:35:193
2853899109,1cyclictest35-21ksoftirqd/300:00:133
2853899108,1cyclictest35-21ksoftirqd/300:15:153
28538991010,0cyclictest35-21ksoftirqd/323:05:213
28538991010,0cyclictest35-21ksoftirqd/300:30:003
2853899101,3cyclictest12716-21apt-get21:40:103
2853799100,1cyclictest0-21swapper/221:51:472
2853599109,1cyclictest9-21ksoftirqd/023:24:590
2853599109,1cyclictest9-21ksoftirqd/020:55:000
2853599108,1cyclictest9-21ksoftirqd/022:10:130
2853599108,1cyclictest9-21ksoftirqd/021:50:010
2853599108,1cyclictest9-21ksoftirqd/021:20:080
2853599108,1cyclictest9-21ksoftirqd/021:15:010
285389999,0cyclictest35-21ksoftirqd/323:55:133
285389999,0cyclictest35-21ksoftirqd/300:30:163
285389999,0cyclictest35-21ksoftirqd/300:10:003
285389998,1cyclictest35-21ksoftirqd/323:35:123
285389998,1cyclictest35-21ksoftirqd/323:10:143
285389998,1cyclictest35-21ksoftirqd/300:10:113
285389992,5cyclictest6976-21apt-get22:15:113
285379990,0cyclictest0-21swapper/220:32:362
285369990,4cyclictest0-21swapper/120:10:111
285359999,0cyclictest9-21ksoftirqd/023:50:110
285359998,1cyclictest9-21ksoftirqd/020:05:110
285359998,0cyclictest9-21ksoftirqd/021:15:150
285359997,1cyclictest9-21ksoftirqd/022:15:110
285359997,1cyclictest9-21ksoftirqd/019:10:130
285359997,1cyclictest9-21ksoftirqd/000:35:150
285359994,4cyclictest0-21swapper/022:20:110
285389988,0cyclictest35-21ksoftirqd/323:00:143
285389987,1cyclictest35-21ksoftirqd/322:35:193
285389987,1cyclictest35-21ksoftirqd/322:25:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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