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2025-11-03 - 02:42
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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 rack0slot2.osadl.org (updated Mon Nov 03, 2025 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
72076626353,7sleep60-21swapper/603:23:156
721239995954,4cyclictest1269808-21latency_hist07:54:487
72068625948,8sleep40-21swapper/403:22:084
71121825341,8sleep50-21swapper/503:19:535
721239995148,2cyclictest785861-21latency_hist03:54:497
721239994944,4cyclictest997336-21latency_hist05:39:487
71122024811,31sleep70-21swapper/703:19:557
721239994744,2cyclictest977295-21latency_hist05:29:497
721239994742,4cyclictest765574-21latency_hist03:44:497
721239994741,5cyclictest976-21in:imjournal05:19:497
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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