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2026-07-14 - 04:00
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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 Tue Jul 14, 2026 00:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2305821200,4sleep0577899cyclictest00:12:080
2382921190,1sleep223833-21bash22:08:032
1974021180,1sleep719743-21bash21:30:017
1974021180,1sleep719743-21bash21:30:017
95772930,1sleep30-21swapper/322:45:153
95772930,1sleep30-21swapper/322:45:153
63842880,0sleep10-21swapper/123:47:091
148342880,1sleep40-21swapper/422:57:344
148322840,0sleep20-21swapper/200:30:382
200732830,1sleep40-21swapper/423:04:494
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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