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2026-05-05 - 12:11
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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 rackeslot8.osadl.org (updated Tue May 05, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1833411992926,1cyclictest0-21swapper/320:20:013
1833411992725,1cyclictest0-21swapper/322:45:003
1833411992724,1cyclictest0-21swapper/321:30:153
1833411992421,1cyclictest0-21swapper/323:20:013
1833411992320,1cyclictest0-21swapper/300:35:003
183341199221,14cyclictest2281849-21sleep00:19:563
1833411992118,1cyclictest0-21swapper/323:40:013
1833411992118,1cyclictest0-21swapper/321:15:003
1833411992118,1cyclictest0-21swapper/320:50:183
183341199211,15cyclictest1893481-21taskset19:54:543
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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