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2026-05-18 - 03:25
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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 rack0slot0.osadl.org (updated Mon May 18, 2026 00:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
655221160,4sleep5677399cyclictest23:03:435
626521160,2sleep10-21swapper/119:06:441
2836321160,0sleep30-21swapper/300:02:313
309172860,0sleep10-21swapper/122:09:051
244222850,0sleep30-21swapper/300:26:043
261472840,0sleep30-21swapper/322:51:063
116112840,1sleep40-21swapper/422:19:584
116112840,1sleep40-21swapper/422:19:584
220942830,3sleep00-21swapper/023:24:540
158992830,0sleep60-21swapper/600:20:306
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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