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2026-01-03 - 17:10
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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 Sat Jan 03, 2026 12:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12650991184,26cyclictest352-21runrttasks09:14:580
12650991162,21cyclictest6884-21apt-get08:30:080
126509911415,23cyclictest10588-21sh11:29:060
126509911415,23cyclictest10588-21sh11:29:060
12650991134,11cyclictest0-21swapper/010:35:010
12650991113,25cyclictest22291-21sendmail_mailqu10:55:270
12650991112,27cyclictest28518-21runrttasks09:23:320
12650991112,27cyclictest28518-21runrttasks09:23:320
12650991112,26cyclictest15740-21seq09:54:500
12650991092,37cyclictest26660-21apt11:54:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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