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2026-08-05 - 18:43
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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 rack3slot6.osadl.org (updated Wed Aug 05, 2026 12:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2770329723,25sleep00-21swapper/007:08:230
28043997741,21cyclictest14-21ksoftirqd/011:55:280
28050997632,39cyclictest26-21ksoftirqd/110:25:211
28043997337,21cyclictest14-21ksoftirqd/010:35:180
28043997337,21cyclictest14-21ksoftirqd/008:43:020
28043997337,21cyclictest14-21ksoftirqd/007:47:500
28043997315,51cyclictest0-21swapper/010:10:110
28043997236,21cyclictest14-21ksoftirqd/011:43:390
28043997216,16cyclictest0-21swapper/011:05:130
28043997116,50cyclictest0-21swapper/012:15:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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