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2026-01-02 - 18:36
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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 20 highest latencies:
System rackcslot2.osadl.org (updated Fri Jan 02, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37362720,1sleep10-21swapper/109:44:431
2563427158,8sleep10-21swapper/107:07:421
41262680,0sleep00-21swapper/007:35:100
96312660,0sleep10-21swapper/109:50:261
26992620,0sleep00-21swapper/009:42:460
2548026149,8sleep00-21swapper/007:06:060
26025993129,1cyclictest7-21ksoftirqd/010:59:530
26025993110,14cyclictest0-21swapper/009:31:130
26026992929,0cyclictest0-21swapper/108:46:491
26026992929,0cyclictest0-21swapper/108:11:071
26025992929,0cyclictest0-21swapper/008:37:370
26025992820,4cyclictest636-21nscd09:24:270
26025992810,11cyclictest0-21swapper/010:51:510
26026992626,0cyclictest0-21swapper/109:16:121
26025992610,3cyclictest0-21swapper/012:35:120
26025992610,10cyclictest0-21swapper/011:56:260
26026992524,1cyclictest24-21ksoftirqd/111:24:531
26026992523,1cyclictest30022-21ssh10:17:011
26025992510,6cyclictest0-21swapper/011:10:160
2602599250,15cyclictest0-21swapper/007:20:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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