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2025-12-30 - 12:01
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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 Tue Dec 30, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19061998985,869cyclictest0-21swapper/121:48:031
1906099477395,66cyclictest0-21swapper/019:12:130
1906199467384,47cyclictest0-21swapper/119:12:131
19060999869,22cyclictest0-21swapper/023:46:170
1861228437,36sleep10-21swapper/119:05:521
1906099774,67cyclictest0-21swapper/019:36:320
19060997531,38cyclictest88850irq/46-eth0-tx-22:25:290
19060997531,38cyclictest88850irq/46-eth0-tx-22:25:290
294732740,3chrt29475-21unixbench-2d21:05:280
1906099743,65cyclictest30936-21runrttasks23:56:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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