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2026-07-28 - 21:41
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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 rackaslot8.osadl.org (updated Tue Jul 28, 2026 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
185212310279,20sleep20-21swapper/207:09:492
183682283222,50sleep00-21swapper/007:08:070
182312271241,19sleep10-21swapper/107:06:241
182232266235,21sleep30-21swapper/307:06:163
284952680,0sleep10-21swapper/109:40:141
146122650,0sleep10-21swapper/108:10:131
213932590,0sleep00-21swapper/011:50:030
185512560,0sleep20-21swapper/209:53:492
30442550,0sleep03046-21latency09:25:160
169822540,0sleep00-21swapper/009:52:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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