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2026-04-21 - 07:58
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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 rack2slot0.osadl.org (updated Tue Apr 21, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
249382800,1sleep0101ktimersoftd/023:10:350
64082780,0sleep00-21swapper/023:25:410
294912720,0sleep00-21swapper/022:54:250
72312610,18sleep375750irq/24-eno1-rx-22:16:233
44232560,1sleep24419-21sshd21:51:142
98522540,1sleep19851-21bash00:10:281
54882540,0sleep20-21swapper/200:35:162
83312530,0sleep10-21swapper/123:39:521
69502520,0sleep06953-21bash00:29:540
57302520,0sleep10-21swapper/123:20:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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