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2026-06-13 - 21:52
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack0slot5.osadl.org (updated Sat Jun 13, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3560275995488,42cyclictest0-21swapper/1521:21:197
35602759954024,515cyclictest0-21swapper/1522:01:197
35602759954024,515cyclictest0-21swapper/1522:01:197
3560267995210,520cyclictest0-21swapper/1300:29:195
35602379950319,483cyclictest0-21swapper/620:53:1912
356024899502501,1cyclictest0-21swapper/919:45:1915
356021899495463,32cyclictest0-21swapper/119:11:191
356021499485426,30cyclictest0-21swapper/021:26:420
35602759946922,30cyclictest160-21ksoftirqd/1520:45:197
35602149946820,28cyclictest0-21swapper/023:59:400
35602659946720,29cyclictest0-21swapper/1223:53:584
35602289946721,441cyclictest3615651-21kworker/4:2+i915-unordered20:30:1910
356022599466465,1cyclictest0-21swapper/321:35:199
356024899465464,1cyclictest3521789-21kworker/9:3+i915-unordered19:11:1915
356021899464464,0cyclictest0-21swapper/120:26:191
35602659946317,28cyclictest0-21swapper/1222:46:414
3560228994620,461cyclictest0-21swapper/423:19:1910
356024299457457,0cyclictest3662611-21kworker/7:2+i915-unordered21:21:1913
3560267994550,454cyclictest142-21ksoftirqd/1300:06:195
356023399454453,1cyclictest0-21swapper/523:19:1911
35602659945322,29cyclictest0-21swapper/1221:22:414
3560225994523,448cyclictest52-21ksoftirqd/319:33:199
3560248994500,53cyclictest0-21swapper/900:21:1915
3560265994490,28cyclictest0-21swapper/1200:18:044
3560275994488,27cyclictest0-21swapper/1520:05:197
3560233994481,30cyclictest0-21swapper/522:40:0111
3560225994480,60cyclictest52-21ksoftirqd/320:28:199
35602659944720,29cyclictest0-21swapper/1220:00:424
356024299447445,2cyclictest3704863-21kworker/7:1+i915-unordered22:01:1913
356024299447445,2cyclictest3704863-21kworker/7:1+i915-unordered22:01:1913
35602659944621,28cyclictest0-21swapper/1221:43:414
35602659944520,29cyclictest0-21swapper/1219:28:054
35602659944519,30cyclictest0-21swapper/1219:44:414
35602719944424,419cyclictest0-21swapper/1420:01:426
35602719944423,420cyclictest0-21swapper/1400:15:036
35602659944419,29cyclictest0-21swapper/1220:09:044
35602659944418,29cyclictest0-21swapper/1220:44:034
35602719944323,419cyclictest0-21swapper/1422:48:416
3560267994431,30cyclictest0-21swapper/1320:44:195
35602659944318,30cyclictest0-21swapper/1223:10:404
35602259944322,420cyclictest0-21swapper/300:07:429
35602719944220,421cyclictest0-21swapper/1400:35:426
35602659944115,29cyclictest0-21swapper/1222:41:054
35602149944122,418cyclictest0-21swapper/020:38:050
35602149944119,421cyclictest0-21swapper/019:54:050
35602429944016,30cyclictest0-21swapper/723:28:1913
35602379944021,417cyclictest0-21swapper/622:41:4012
35602149944021,417cyclictest0-21swapper/023:38:050
35602489943821,30cyclictest0-21swapper/919:24:1915
35602429943810,427cyclictest0-21swapper/700:16:1913
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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