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2026-03-18 - 14:07
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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 rack4slot6.osadl.org (updated Wed Mar 18, 2026 12:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26088521020,93pltrace0-21swapper/107:05:081
2608852770,68pltrace0-21swapper/207:05:132
2876227359,10sleep50-21swapper/507:07:595
2860027345,10sleep30-21swapper/307:05:403
2863927258,10sleep60-21swapper/607:06:166
2877326147,10sleep70-21swapper/707:08:097
2872625945,10sleep00-21swapper/007:07:310
2615225843,10sleep40-21swapper/407:05:014
310422330,1sleep10-21swapper/112:00:141
1736052290,0pltrace0-21swapper/710:40:217
57652280,2pltrace0-21swapper/710:10:237
2572352260,0pltrace0-21swapper/710:55:127
1628552260,0pltrace0-21swapper/709:40:147
1628552260,0pltrace0-21swapper/709:40:147
3173552240,0pltrace0-21swapper/707:14:597
2185852240,0pltrace0-21swapper/709:50:187
557452230,13pltrace5633-21latency_hist12:15:016
2909499211,14cyclictest0-21swapper/009:37:510
2909499211,14cyclictest0-21swapper/009:37:510
29096992014,5cyclictest0-21swapper/109:43:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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