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2025-11-20 - 20:00
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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 rack0slot7.osadl.org (updated Thu Nov 20, 2025 00:45:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
483405998976,9cyclictest0-21swapper/1022:24:132
483410998771,9cyclictest0-21swapper/1422:19:586
483401998580,3cyclictest2664908-21TaskCon~ller12
483411998364,7cyclictest0-21swapper/1522:23:227
48273927635,38sleep140-21swapper/1419:08:006
483411997334,13cyclictest0-21swapper/1522:18:287
483395997254,11cyclictest1983828-21DOM09:53:580
483409997164,5cyclictest1047444-21firefox:gdrv022:23:435
483405997050,14cyclictest29450irq/128-xhci_hcd22:18:032
483399997063,4cyclictest0-21swapper/422:20:5010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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