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2026-05-05 - 07:26
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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 10 highest latencies:
System rackbslot7.osadl.org (updated Tue May 05, 2026 00:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1251721589,121sleep112567-21sort18:57:351
1251721589,121sleep112567-21sort18:57:351
132889911489,19cyclictest13290-21latency_hist19:01:530
132889911489,19cyclictest13290-21latency_hist19:01:530
2414021100,5sleep224133-21ssh21:07:192
2414021100,5sleep224133-21ssh21:07:192
13302999674,15cyclictest13279-21cyclictest20:07:222
1329399944,39cyclictest8827-21latency_hist20:26:531
1330299933,42cyclictest39-21ksoftirqd/222:42:452
13302999246,12cyclictest181rcu_preempt19:52:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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