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2026-09-16 - 08:24
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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 Wed Sep 16, 2026 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2116221880,4sleep32394099cyclictest22:26:233
891821760,4sleep62395799cyclictest22:58:086
874921570,1sleep10-21swapper/123:20:151
277121540,0sleep40-21swapper/422:18:394
712721500,0sleep40-21swapper/423:33:494
287521460,0sleep00-21swapper/023:13:090
1829021440,4sleep42394699cyclictest21:23:314
1120721350,4sleep52395299cyclictest23:44:155
3233821230,4sleep72396799cyclictest23:57:167
2281721230,0sleep70-21swapper/723:31:127
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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