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2026-07-29 - 20:00
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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 rackfslot7.osadl.org (updated Wed Jul 29, 2026 12:46:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2673022999694,0cyclictest2824982-21sed11:40:244
2673022997517,39cyclictest2698412-21sed07:55:024
2673022997333,39cyclictest2848869-21fschecks_time12:25:164
2673022997132,39cyclictest0-21swapper/409:00:084
2673022997132,21cyclictest0-21swapper/412:07:084
2673022997031,22cyclictest0-21swapper/411:33:364
2673022996930,20cyclictest2845818-21diskstats12:20:144
2673022996930,20cyclictest0-21swapper/412:03:564
2673022996911,39cyclictest2721554-21ntpq08:35:204
267302299679,39cyclictest2770319-21grep10:05:144
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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