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2026-11-09 - 10:02
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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 Mon Nov 09, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1165021050,2sleep4533399cyclictest19:35:244
254012560,1sleep525378-21sshd21:29:305
250582540,1sleep725057-21bash22:43:257
152062520,0sleep70-21swapper/721:19:397
55482510,1sleep75544-21systemd23:30:107
43592490,0sleep30-21swapper/323:27:423
432124924,9sleep40-21swapper/419:01:384
80172480,2sleep4533399cyclictest21:52:524
238632480,0sleep323859-21systemd-cgroups23:05:153
221402480,1sleep125-21ksoftirqd/100:11:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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