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2026-05-28 - 00:24
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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: ondemand
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack5slot4.osadl.org (updated Wed May 27, 2026 12:44:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
92852117105,7sleep20-21swapper/207:05:492
9420211341,8sleep30-21swapper/307:07:353
93412111101,6sleep10-21swapper/107:06:321
43402111101,7sleep00-21swapper/007:05:040
34372620,0sleep20-21swapper/207:55:272
39052580,0sleep30-21swapper/311:50:003
76712570,0sleep30-21swapper/309:55:183
5702560,0sleep10-21swapper/108:25:131
167182550,0sleep10-21swapper/107:15:021
25882540,0sleep20-21swapper/208:25:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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