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2026-05-14 - 21:12
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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 rack1slot2.osadl.org (updated Thu May 14, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1079925141,0sleep30-21swapper/307:20:063
191380,0ktimersoftd/13862-21perf07:22:291
1066323725,0sleep20-21swapper/207:18:322
1027823127,0sleep00-21swapper/007:18:020
1109999200,0cyclictest0-21swapper/209:23:072
11098991313,0cyclictest30797-21awk08:42:541
110989976,0cyclictest14035-21sh09:32:581
8305060,0irq/26-0000:00:19724-21munin-run11:12:402
8305060,0irq/26-0000:00:18759-21crond08:57:392
4160,0ktimersoftd/04730-21ssh12:36:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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