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2026-04-07 - 03:13
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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 Tue Apr 07, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34942710,0sleep40-21swapper/421:36:244
234092600,0sleep40-21swapper/422:03:314
2956025846,9sleep70-21swapper/719:03:497
145292550,0sleep7721ktimersoftd/721:27:467
286112530,0sleep60-21swapper/623:34:396
147212520,0sleep00-21swapper/000:09:090
307402500,0sleep70-21swapper/723:12:307
27842490,0sleep10-21swapper/121:16:021
256682490,1sleep2763-21NetworkManager22:16:342
181362490,1sleep318137-21grep23:04:253
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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