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2026-04-29 - 14:59
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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 Apr 29, 2026 12:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27536216613,106sleep027569-21proc_pri06:57:540
28371215112,105sleep128375-21latency_hist07:02:151
28454991273,78cyclictest0-21swapper/009:32:270
28454991272,78cyclictest27734-21apt-get08:37:220
28454991253,83cyclictest1319-21rm09:52:290
28454991253,83cyclictest1319-21rm09:52:290
284549911625,52cyclictest0-21swapper/011:07:140
284549911534,60cyclictest0-21swapper/011:12:440
284549911534,60cyclictest0-21swapper/011:12:440
28454991143,68cyclictest0-21swapper/008:37:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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