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2026-06-06 - 20:42
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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 20 highest latencies:
System rack1slot8.osadl.org (updated Sat Jun 06, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
156642849831,12sleep10-21swapper/107:09:571
153232598575,15sleep00-21swapper/007:06:340
15707995444,509cyclictest0-21swapper/007:48:530
15708995394,492cyclictest0-21swapper/107:48:531
1570799418358,49cyclictest0-21swapper/007:10:040
1570899414351,47cyclictest0-21swapper/107:10:041
1570799816,68cyclictest0-21swapper/009:23:190
1570799815,15cyclictest0-21swapper/010:40:010
1570799775,17cyclictest0-21swapper/009:52:110
15707997712,58cyclictest0-21swapper/010:24:240
15707997611,58cyclictest0-21swapper/009:39:070
1570799756,17cyclictest0-21swapper/010:43:340
1570799755,16cyclictest0-21swapper/010:10:010
1570799754,7cyclictest27482-21ssh12:04:390
1570799746,17cyclictest0-21swapper/011:53:000
1570799746,16cyclictest0-21swapper/010:00:140
1570799746,16cyclictest0-21swapper/008:35:170
1570799745,17cyclictest0-21swapper/011:25:500
1570799736,17cyclictest0-21swapper/009:25:150
1570799736,17cyclictest0-21swapper/007:56:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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