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2026-05-18 - 16:12
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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 Mon May 18, 2026 12:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
618821120,0sleep60-21swapper/609:25:176
262272890,1sleep669-21ksoftirqd/609:23:406
133922890,1sleep60-21swapper/612:22:286
124022830,0sleep60-21swapper/611:37:006
124022830,0sleep60-21swapper/611:37:006
55332820,1sleep65536-21sh10:10:126
18382810,0sleep10-21swapper/111:49:141
14502810,1sleep30-21swapper/310:18:433
187282800,0sleep10-21swapper/109:31:291
63252790,1sleep00-21swapper/009:20:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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