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2025-12-26 - 23:45
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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 Fri Dec 26, 2025 12:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14879212410,85sleep114364-21apt-get07:05:041
164629911143,11cyclictest0-21swapper/008:05:040
164629911122,29cyclictest13064-21latency_hist11:34:460
164629911122,29cyclictest13064-21latency_hist11:34:460
16483991103,86cyclictest16204-21apt-get07:09:582
16483991103,86cyclictest16204-21apt-get07:09:582
164629910980,22cyclictest16458-21latency_hist07:09:470
164629910849,9cyclictest16442-21cyclictest09:55:360
164629910849,9cyclictest16442-21cyclictest09:55:360
16462991084,42cyclictest7944-21timerandwakeup11:25:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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