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2026-03-30 - 04:34
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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 rackbslot7.osadl.org (updated Mon Mar 30, 2026 00:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13767991192,86cyclictest29109-21apt-get19:49:262
13767991192,86cyclictest29109-21apt-get19:49:262
13767991182,83cyclictest28958-21dpkg23:05:112
137629911550,33cyclictest28841-21ssh22:09:551
137629910351,42cyclictest803-21sendmail-mta00:11:201
1331121036,17sleep10-21swapper/119:00:261
1942221000,6sleep219398-21ssh21:54:462
13767999970,20cyclictest12001-21sh00:24:492
13762999726,36cyclictest21049-21sh22:50:391
13767999646,13cyclictest0-21swapper/222:04:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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