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2026-07-16 - 04:49
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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
Characteristics of the 10 highest latencies:
System rackdslot0.osadl.org (updated Thu Jul 16, 2026 00:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17144993029,0cyclictest0-21swapper/122:45:151
17144993029,0cyclictest0-21swapper/122:45:151
1714999260,1cyclictest0-21swapper/222:10:012
17149992514,6cyclictest26751-21nfsd423:15:172
1714999240,2cyclictest27866-21http_loadtime22:20:142
1714999240,2cyclictest27866-21http_loadtime22:20:142
17149992310,7cyclictest25074-21taskset23:14:532
1714999230,2cyclictest6959-21fschecks_time20:45:162
1714999230,22cyclictest0-21swapper/219:50:362
1714999230,17cyclictest25141-21cat21:19:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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