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2026-04-09 - 20:57
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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 Thu Apr 09, 2026 12:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
176621030,9sleep21756-21munin-run09:53:312
2911921027,17sleep10-21swapper/107:00:181
28808210010,61sleep228873-21cat06:59:172
2952699984,82cyclictest0-21swapper/107:48:441
29522999616,62cyclictest10034-21cat11:54:060
29522999534,26cyclictest5365-21sh11:47:130
2952699934,82cyclictest0-21swapper/110:58:451
29526999056,28cyclictest298-21in:imuxsock09:40:161
2952699904,79cyclictest0-21swapper/111:03:441
2952699895,76cyclictest0-21swapper/107:33:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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