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2026-08-09 - 15:42
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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 rack3slot6.osadl.org (updated Sun Aug 09, 2026 12:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2054829620,56sleep00-21swapper/007:05:190
2157329236,45sleep10-21swapper/107:07:571
2195199726,15cyclictest0-21swapper/010:10:130
21951997140,26cyclictest503-21snmpd09:10:260
21957997015,10cyclictest24248-21/usr/sbin/munin10:15:201
2195199705,24cyclictest7777-21apt-get08:00:150
111302700,6chrt11131-21aten2.4_r3power09:40:190
21951996954,9cyclictest14-21ksoftirqd/011:00:230
21951996953,9cyclictest14-21ksoftirqd/010:05:000
21951996930,14cyclictest14-21ksoftirqd/008:50:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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