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2026-07-19 - 22:17
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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 20 highest latencies:
System rack3slot6.osadl.org (updated Sun Jul 19, 2026 12:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2534521110,6chrt25342-21aten2.4-expect09:25:171
8667991109,77cyclictest0-21swapper/007:25:140
8667991099,85cyclictest0-21swapper/009:05:140
86749910780,16cyclictest27682-21kworker/1:010:25:141
86679910654,31cyclictest0-21swapper/012:25:130
86749910578,17cyclictest26-21ksoftirqd/108:30:151
86749910473,19cyclictest26-21ksoftirqd/111:55:121
86749910471,18cyclictest26-21ksoftirqd/108:10:151
86749910271,21cyclictest26-21ksoftirqd/111:05:141
8674999868,18cyclictest26-21ksoftirqd/109:45:141
8674999564,20cyclictest26-21ksoftirqd/109:20:241
8674999559,21cyclictest26-21ksoftirqd/108:40:241
8674999463,21cyclictest26-21ksoftirqd/110:00:131
828029420,28sleep00-21swapper/007:07:490
8674999361,20cyclictest26-21ksoftirqd/109:55:151
8667999311,64cyclictest0-21swapper/008:45:120
8674999262,20cyclictest26-21ksoftirqd/111:15:111
867499909,73cyclictest18344-21kworker/1:012:10:121
8667999047,27cyclictest14-21ksoftirqd/009:35:140
87602880,6sleep00-21swapper/011:40:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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