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2026-06-18 - 04:13
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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 rack4slot6.osadl.org (updated Thu Jun 18, 2026 00:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27397521320,113pltrace0-21swapper/319:09:143
27397521160,113pltrace0-21swapper/119:10:001
27397521090,100pltrace0-21swapper/219:09:002
27397521020,93pltrace0-21swapper/719:09:127
27397521010,93pltrace0-21swapper/519:08:215
2739752950,91pltrace0-21swapper/619:08:476
2714527742,10sleep00-21swapper/019:05:210
2609452680,9pltrace78-21ksoftirqd/723:59:207
2609452680,9pltrace78-21ksoftirqd/723:59:207
1709052670,12pltrace78-21ksoftirqd/722:07:137
788652640,2pltrace7890-21pltrace-run23:37:256
641752630,0pltrace0-21swapper/723:04:497
790352590,6pltrace78-21ksoftirqd/721:54:167
2504725843,10sleep40-21swapper/419:05:004
1098052570,6pltrace78-21ksoftirqd/723:10:197
2774799560,3cyclictest0-21swapper/221:50:032
1216752530,7pltrace78-21ksoftirqd/722:35:587
1217152450,7pltrace78-21ksoftirqd/700:22:227
1623852440,1pltrace0-21swapper/123:12:241
1217152440,7pltrace78-21ksoftirqd/700:19:407
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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