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2026-01-11 - 01:21
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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 rack0slot0.osadl.org (updated Sun Jan 11, 2026 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1420721290,0sleep414208-21grepconf.sh22:45:014
2102821260,1sleep31038-21sshd00:32:073
1402521240,5sleep7149099cyclictest22:36:387
1402521240,5sleep7149099cyclictest22:36:387
2655821200,0sleep50-21swapper/500:26:485
3048021080,0sleep3411ktimersoftd/323:32:533
2096321070,1sleep020965-21bash21:15:130
2096321070,1sleep020965-21bash21:15:120
98412860,1sleep2311rcuc/223:15:202
14672840,1sleep3679-21dbus-daemon00:09:073
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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