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2026-04-30 - 02:05
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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
Characteristics of the 10 highest latencies:
System rack3slot0.osadl.org (updated Thu Apr 30, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
127642910,2sleep32593999cyclictest21:18:403
122792740,1sleep612271-21systemd23:37:396
164742730,2sleep32593999cyclictest00:02:593
79292610,0sleep7464-21systemd-journal23:13:377
308292580,2sleep12593499cyclictest22:03:551
98012530,0sleep3758-21runrttasks23:56:503
164352530,0sleep60-21swapper/621:47:346
164352530,0sleep60-21swapper/621:47:346
293402520,0sleep70-21swapper/723:44:217
141632520,1sleep313969-21sshd22:29:523
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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