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2026-05-14 - 15:31
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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 rack3slot6.osadl.org (updated Thu May 14, 2026 12:45:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2584829521,27sleep00-21swapper/007:08:110
2584829521,27sleep00-21swapper/007:08:100
2620099935,18cyclictest13029-21apt-get12:35:120
26200999143,35cyclictest14-21ksoftirqd/012:25:110
2620099855,43cyclictest0-21swapper/010:50:140
270212810,9chrt0-21swapper/007:10:300
244572807,61sleep124461-21apt-get07:05:121
244572807,61sleep124461-21apt-get07:05:121
191762760,6sleep019172-21df_inode11:20:190
191762760,6sleep019172-21df_inode11:20:190
26203997343,13cyclictest26-21ksoftirqd/108:10:101
26200997341,19cyclictest14-21ksoftirqd/009:30:120
26203997226,41cyclictest0-21swapper/112:15:111
26200997219,47cyclictest5065-31find07:40:230
26203997152,10cyclictest26-21ksoftirqd/110:25:121
26203997053,10cyclictest26-21ksoftirqd/112:20:121
26203996939,17cyclictest26-21ksoftirqd/108:25:131
26203996938,16cyclictest26-21ksoftirqd/108:00:111
184372690,4sleep10-21swapper/109:45:461
26200996840,17cyclictest14-21ksoftirqd/011:43:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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