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2026-05-02 - 20:09
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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 rack0slot0.osadl.org (updated Sat May 02, 2026 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2303321390,4sleep21749099cyclictest12:29:202
1189121160,0sleep30-21swapper/309:23:443
314552830,0sleep40-21swapper/410:30:214
42512810,0sleep50-21swapper/511:12:375
103662780,0sleep60-21swapper/610:18:216
187802760,1sleep60-21swapper/610:56:116
262882750,0sleep30-21swapper/310:57:213
44322740,0sleep30-21swapper/311:54:193
241122740,1sleep11014-21runrttasks12:24:531
263642720,1sleep40-21swapper/410:39:034
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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