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2026-08-25 - 21:14
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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 rackfslot7.osadl.org (updated Tue Aug 25, 2026 12:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2607310999655,19cyclictest2651701-21aten2.4-expect08:30:144
2607310999333,39cyclictest2786985-21fschecks_time12:35:154
2607310998527,39cyclictest2677886-21grep09:15:194
260731199790,77cyclictest0-21swapper/512:25:145
2607310997637,18cyclictest0-21swapper/410:49:504
2607310997031,39cyclictest0-21swapper/411:22:444
2607310997012,39cyclictest2765194-21cut11:55:174
2607310996911,39cyclictest2642077-21ps08:10:214
2607310996831,18cyclictest2767916-21irqstats12:00:174
2607310996811,38cyclictest2687349-21munin-run09:35:014
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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