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2026-08-29 - 15:01
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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 rackeslot5.osadl.org (updated Sat Aug 29, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1512299310,30cyclictest24388-21cron19:30:013
15121993112,18cyclictest3171-21grep19:50:202
1512099310,30cyclictest14103-21cron22:35:011
1512299300,29cyclictest649-21gdbus22:00:003
1512299300,29cyclictest27926-21perf21:55:003
1511999300,29cyclictest13891-21cron21:25:000
1512299290,1cyclictest621-21dbus-daemon20:50:013
15121992927,1cyclictest12076-21apt-get22:30:122
15121992927,1cyclictest0-21swapper/222:05:122
1512199290,28cyclictest15610-21cron20:20:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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