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2026-06-29 - 06:22
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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 Mon Jun 29, 2026 00:45:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1449210417,40sleep00-21swapper/019:09:380
1610999871,14cyclictest14-21ksoftirqd/019:55:130
71632940,16sleep126-21ksoftirqd/123:55:011
1610999463,18cyclictest14-21ksoftirqd/000:10:140
1610999369,13cyclictest14-21ksoftirqd/000:25:120
1610999260,18cyclictest14-21ksoftirqd/021:45:160
1610999113,19cyclictest0-21swapper/021:20:130
1615999048,24cyclictest26-21ksoftirqd/120:50:121
1610998960,18cyclictest14-21ksoftirqd/022:00:160
1610998859,20cyclictest0-21swapper/022:45:130
1610998760,17cyclictest14-21ksoftirqd/022:05:160
1610998759,17cyclictest14-21ksoftirqd/022:50:120
1610998659,18cyclictest14-21ksoftirqd/022:20:120
1610998657,15cyclictest14-21ksoftirqd/020:00:120
1610998459,17cyclictest14-21ksoftirqd/020:50:140
1610998357,17cyclictest14-21ksoftirqd/022:10:120
1610998353,19cyclictest14-21ksoftirqd/020:10:240
142532820,6chrt14255-21latency_hist00:15:011
1610998154,17cyclictest14-21ksoftirqd/023:45:130
1610998154,17cyclictest14-21ksoftirqd/023:45:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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