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2026-06-19 - 09:18
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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 10 highest latencies:
System rackbslot7.osadl.org (updated Fri Jun 19, 2026 00:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
48599910280,16cyclictest2358-21sh00:19:220
3392210117,60sleep23384-21apt-get18:54:042
1051621010,7sleep10-21swapper/121:49:231
1051621010,7sleep10-21swapper/121:49:231
3909210011,63sleep03933-21awk18:55:120
4873999778,11cyclictest0-21swapper/220:34:212
4873999778,11cyclictest0-21swapper/220:34:212
4873999772,15cyclictest0-21swapper/219:29:232
4873999678,9cyclictest0-21swapper/222:44:102
4867999674,17cyclictest4850-21cyclictest21:15:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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