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2026-07-11 - 20:26
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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
Characteristics of the 10 highest latencies:
System rackdslot1.osadl.org (updated Sat Jul 11, 2026 12:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1502221750,2sleep12823999cyclictest07:44:181
1504521570,6sleep22824099cyclictest07:44:362
1503621470,5sleep32824199cyclictest07:44:293
155312970,1sleep115541-21sh08:05:581
134691940,11getstats12171-21spawn07:57:093
160862820,3sleep20-21swapper/207:34:482
106812820,6sleep10-21swapper/108:02:041
106812820,6sleep10-21swapper/108:02:031
134491760,11ptp4l9-21ksoftirqd/008:02:160
134491760,11ptp4l9-21ksoftirqd/008:02:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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