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2025-12-10 - 17:11
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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 rack1slot8.osadl.org (updated Wed Dec 10, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
762299888818,48cyclictest0-21swapper/107:10:031
762199787719,51cyclictest0-21swapper/007:10:030
762299482408,43cyclictest0-21swapper/107:32:571
762199397329,42cyclictest0-21swapper/007:32:570
71582233210,16sleep00-21swapper/007:05:430
1892921500,3sleep118930-21sh10:03:121
7621991128,99cyclictest0-21swapper/010:22:590
7621991095,97cyclictest0-21swapper/009:27:000
76219910881,21cyclictest78950irq/46-eth0-tx-09:50:000
7621991018,87cyclictest585-21rm10:26:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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