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2026-04-27 - 13:53
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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 Mon Apr 27, 2026 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3052521230,7chrt30527-21tr09:55:231
3052521230,7chrt30527-21tr09:55:231
2300421140,10sleep0171rcuc/009:35:050
906321020,5chrt9062-21/usr/sbin/munin10:25:281
3317999621,63cyclictest0-21swapper/112:10:121
331099925,26cyclictest5640-21apt-get07:15:120
331099916,23cyclictest4950-21apt-get10:15:230
331099914,23cyclictest25374-21apt-get08:10:120
331099912,66cyclictest14625-31find07:39:530
3317999015,59cyclictest0-21swapper/108:00:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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