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2026-05-02 - 07:31
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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 Sat May 02, 2026 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1958021420,4sleep43181899cyclictest00:19:234
1958021420,4sleep43181899cyclictest00:19:234
664121230,1sleep06635-21sshd23:30:530
1144921230,4sleep43181899cyclictest00:30:524
291121220,0sleep00-21swapper/021:17:160
788721200,0sleep70-21swapper/722:41:237
882021110,1sleep38817-21sshd21:15:523
287752910,1sleep7771ktimersoftd/721:59:487
287752910,1sleep7771ktimersoftd/721:59:477
124252870,1sleep4778-21NetworkManager23:03:494
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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