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2026-06-12 - 07:28
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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: ondemand
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack5slot4.osadl.org (updated Fri Jun 12, 2026 00:44:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24369215687,9sleep30-21swapper/319:07:293
24505214684,7sleep10-21swapper/119:09:161
245232112103,6sleep20-21swapper/219:09:292
245212111101,7sleep00-21swapper/019:09:270
326182670,4sleep010-21rcuc/022:35:180
326182670,4sleep010-21rcuc/022:35:170
238882570,0sleep10-21swapper/121:30:151
2473899281,26cyclictest0-21swapper/221:42:492
2473899281,26cyclictest0-21swapper/219:17:122
2473899280,27cyclictest0-21swapper/220:24:512
2473399280,27cyclictest0-21swapper/120:02:541
2473899270,26cyclictest0-21swapper/200:37:122
2473399270,26cyclictest0-21swapper/119:22:271
24738992621,4cyclictest0-21swapper/219:21:242
2473899260,25cyclictest0-21swapper/221:01:402
2473399260,25cyclictest0-21swapper/122:43:551
2473399260,25cyclictest0-21swapper/122:02:581
2473399260,25cyclictest0-21swapper/120:30:361
2473399260,25cyclictest0-21swapper/100:18:361
24738992522,2cyclictest0-21swapper/223:51:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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