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2026-03-22 - 18:11
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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 Sun Mar 22, 2026 12:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1467629940,46sleep10-21swapper/107:08:201
15025998549,19cyclictest14-21ksoftirqd/010:30:130
1502599805,43cyclictest0-21swapper/010:35:320
187372780,5sleep126-21ksoftirqd/110:20:271
15025997815,14cyclictest13571-21cpu08:35:180
1466327617,50sleep00-21swapper/007:08:110
15034997347,12cyclictest26-21ksoftirqd/110:55:101
15034996941,15cyclictest26-21ksoftirqd/107:45:141
15034996835,20cyclictest26-21ksoftirqd/112:25:251
1502599665,20cyclictest6102-21apt-get08:15:140
15025996630,25cyclictest14-21ksoftirqd/010:25:190
15034996536,16cyclictest26-21ksoftirqd/109:45:121
15025996531,22cyclictest14-21ksoftirqd/009:46:450
15034996436,16cyclictest0-21swapper/111:45:121
15034996333,19cyclictest26-21ksoftirqd/107:55:131
15034996234,18cyclictest26-21ksoftirqd/111:35:141
15034996233,19cyclictest26-21ksoftirqd/111:15:131
15025996232,12cyclictest14-21ksoftirqd/012:35:190
15034996134,15cyclictest0-21swapper/109:25:101
15034996132,17cyclictest0-21swapper/111:40:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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