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2026-06-20 - 16:00
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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 rack3slot6.osadl.org (updated Sat Jun 20, 2026 12:45:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
126589911889,19cyclictest26-21ksoftirqd/108:05:121
126569911567,36cyclictest14-21ksoftirqd/010:40:110
126589911381,20cyclictest26-21ksoftirqd/109:40:151
126569911312,88cyclictest0-21swapper/011:00:120
126589911181,18cyclictest26-21ksoftirqd/110:50:141
126589911181,18cyclictest26-21ksoftirqd/110:50:141
126589911079,21cyclictest26-21ksoftirqd/111:40:151
126589910880,18cyclictest26-21ksoftirqd/108:55:151
126589910877,20cyclictest26-21ksoftirqd/110:55:151
126589910671,23cyclictest26-21ksoftirqd/112:00:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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