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2025-10-28 - 18:25
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rack2slot7.osadl.org (updated Tue Oct 28, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
136287499487,24cyclictest1565630-21ntpq12:37:520
136287499352,3cyclictest1427988-21/usr/sbin/munin09:47:580
136287499325,18cyclictest0-21swapper/011:02:490
136287499300,29cyclictest1402427-1kworker/0:0H+kblockd10:48:160
136287699296,7cyclictest11050irq/107-eth%d10:29:352
136287499282,5cyclictest0-21swapper/010:17:520
136287499280,1cyclictest1532154-21sed11:57:580
136287599276,15cyclictest619-21mta-sts-daemon12:42:541
1362874992721,2cyclictest1007-21mta-sts-daemon10:31:440
136287499270,21cyclictest1529370-21sh11:55:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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