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2025-09-17 - 04:20
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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 rack7slot0.osadl.org (updated Wed Sep 17, 2025 00:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
117950630,0irq/26-eth1-rx-351ktimersoftd/319:05:493
110050630,0irq/25-eth00-21swapper/219:09:292
110050620,0irq/25-eth00-21swapper/119:05:401
9950540,0irq/24-0000:00:0-21swapper/019:05:260
2392599213,0cyclictest0-21swapper/122:11:241
271180,0ktimersoftd/28260-21sshd21:12:312
23927991512,0cyclictest0-21swapper/322:46:433
2392799151,0cyclictest0-21swapper/322:20:013
2392799150,0cyclictest20299-21bash23:38:113
23926991514,0cyclictest1453-21nfsd22:27:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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