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2026-05-18 - 09:21
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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
Characteristics of the 10 highest latencies:
System rackdslot1.osadl.org (updated Mon May 18, 2026 00:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
303142860,5sleep330318-21irqrtprio23:50:203
29081997829,5cyclictest9-21ksoftirqd/021:00:260
2908499721,32cyclictest26557-21chrt22:32:213
29082997124,7cyclictest25-21ksoftirqd/120:00:281
2908499700,42cyclictest6761-21cut19:30:173
2908499700,25cyclictest22155-21egrep20:05:143
129732690,6sleep22908399cyclictest22:04:592
2908499681,23cyclictest5289-21cut00:05:183
2908499670,33cyclictest7817-21sed00:10:183
29082996731,9cyclictest25-21ksoftirqd/121:15:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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