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2026-05-14 - 01:48
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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 00:45:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1241521050,5chrt12418-21grep22:45:251
31434210332,23sleep10-21swapper/119:06:051
3144829522,27sleep00-21swapper/019:06:140
278742940,6chrt27877-21sed23:30:020
31988999376,10cyclictest26-21ksoftirqd/122:35:121
31988999376,10cyclictest26-21ksoftirqd/122:35:111
31988999267,12cyclictest26-21ksoftirqd/121:35:121
31988999167,11cyclictest26-21ksoftirqd/121:45:141
31988998857,20cyclictest26-21ksoftirqd/121:10:281
31988998557,16cyclictest26-21ksoftirqd/100:20:141
31988998354,19cyclictest26-21ksoftirqd/120:10:131
31988998255,18cyclictest26-21ksoftirqd/100:05:121
3198499817,57cyclictest0-21swapper/019:45:130
31988997955,17cyclictest26-21ksoftirqd/123:10:141
31988997649,18cyclictest26-21ksoftirqd/100:35:141
31984997535,23cyclictest14-21ksoftirqd/023:05:320
31984997532,27cyclictest14-21ksoftirqd/020:48:420
31984997532,27cyclictest14-21ksoftirqd/020:48:420
31988997326,41cyclictest26-21ksoftirqd/123:25:281
31988997325,11cyclictest26-21ksoftirqd/119:40:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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