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2026-05-06 - 04:47
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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 Wed May 06, 2026 00:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23855991153,99cyclictest27490-21apt-get23:37:102
23855991112,37cyclictest18478-21sh23:22:242
23855991103,32cyclictest32483-21taskset21:57:542
23855991103,32cyclictest32483-21taskset21:57:542
238559910168,26cyclictest15887-21sshd00:11:572
23855991012,31cyclictest27594-21taskset20:49:502
23855991003,29cyclictest15923-21diskmemload21:29:372
23855991003,29cyclictest15923-21diskmemload21:29:372
2385599992,31cyclictest31008-21diskmemload23:19:052
2385599982,31cyclictest11933-21ssh00:04:582
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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