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2025-12-11 - 18:00
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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 rack1slot8.osadl.org (updated Thu Dec 11, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
284612873852,14sleep10-21swapper/107:09:281
28547998664,843cyclictest0-21swapper/109:58:011
2854699832766,56cyclictest0-21swapper/007:11:090
2854799775706,49cyclictest0-21swapper/107:11:091
2854699774710,58cyclictest0-21swapper/009:58:010
284832684660,17sleep00-21swapper/007:09:410
2168991300,4rtkit-daemon12382-21runrttasks11:06:050
2168991300,4rtkit-daemon12382-21runrttasks11:06:050
2854799979,66cyclictest0-21swapper/107:19:591
28547999010,62cyclictest0-21swapper/110:37:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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