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2026-03-08 - 00:48
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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 Sat Mar 07, 2026 12:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
266892920,1sleep126675-21bash10:22:171
103392860,1sleep7711rcuc/712:25:257
324262680,0sleep70-21swapper/709:56:447
306192610,0sleep10-21swapper/110:53:571
306192610,0sleep10-21swapper/110:53:571
66982590,12sleep687950irq/25-em1-rx-011:35:106
68322550,0sleep50-21swapper/511:16:435
230622530,2sleep21301099cyclictest12:24:162
256232510,0sleep30-21swapper/310:49:583
1253325025,8sleep40-21swapper/407:02:414
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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