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2026-08-23 - 21:41
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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 rack3slot6.osadl.org (updated Sun Aug 23, 2026 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1297921300,7sleep10-21swapper/110:20:011
1712621120,6chrt17129-21wc10:30:270
99769911080,19cyclictest14-21ksoftirqd/007:40:130
99769910674,18cyclictest14-21ksoftirqd/012:30:240
99769910674,18cyclictest0-21swapper/011:10:130
99769910578,17cyclictest14-21ksoftirqd/008:40:140
99769910575,17cyclictest14-21ksoftirqd/010:05:150
99769910372,19cyclictest14-21ksoftirqd/011:20:150
99769910272,19cyclictest14-21ksoftirqd/009:50:120
99769910072,18cyclictest14-21ksoftirqd/009:00:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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