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2026-04-17 - 05:29
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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 Fri Apr 17, 2026 00:45:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6335991129,26cyclictest0-21swapper/021:50:140
63359911212,28cyclictest0-21swapper/021:00:090
63429911113,33cyclictest0-21swapper/121:05:141
6335991116,27cyclictest503-21snmpd20:40:150
63359911068,28cyclictest0-21swapper/021:40:110
63359910966,31cyclictest14-21ksoftirqd/021:25:090
63359910662,32cyclictest0-21swapper/023:00:120
63359910561,33cyclictest14-21ksoftirqd/023:15:230
63359910554,37cyclictest14-21ksoftirqd/022:40:120
63359910512,24cyclictest0-21swapper/020:20:120
63359910511,24cyclictest0-21swapper/021:05:150
63359910511,23cyclictest0-21swapper/021:10:130
63429910412,32cyclictest0-21swapper/119:30:121
63359910455,33cyclictest14-21ksoftirqd/000:00:230
63429910312,31cyclictest0-21swapper/123:40:161
63429910312,31cyclictest0-21swapper/122:30:121
63359910355,33cyclictest14-21ksoftirqd/020:55:120
63359910355,33cyclictest14-21ksoftirqd/020:55:120
63359910352,34cyclictest14-21ksoftirqd/022:45:110
6335991034,79cyclictest503-21snmpd19:45:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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