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2026-07-31 - 23:58
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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 Fri Jul 31, 2026 12:45:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1361629634,49sleep10-21swapper/107:09:201
129772877,64sleep013076-21/usr/sbin/munin07:05:320
301892810,6chrt0-21swapper/109:25:001
301892810,6chrt0-21swapper/109:25:001
13809998050,16cyclictest17479-21sshd08:50:140
13809998034,8cyclictest503-21snmpd07:45:000
13809997743,22cyclictest6992-21apt-get09:50:150
13809997729,43cyclictest17573-21runrttasks10:16:140
13809997552,14cyclictest3459-21apt-get08:10:240
13809997433,35cyclictest867-21runrttasks08:01:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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