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2026-06-09 - 18:13
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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 Tue Jun 09, 2026 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1695921230,3sleep0171rcuc/011:00:320
31169991137,86cyclictest0-21swapper/011:45:130
3160521100,7chrt31604-21sed11:40:340
31169991047,19cyclictest0-21swapper/008:30:120
31008210420,39sleep00-21swapper/007:09:480
31169991037,18cyclictest0-21swapper/010:40:140
31169999811,69cyclictest0-21swapper/008:40:130
3116999979,67cyclictest0-21swapper/007:25:100
3116999977,72cyclictest0-21swapper/010:20:160
3116999967,18cyclictest0-21swapper/007:10:120
3116999967,12cyclictest0-21swapper/007:35:120
3116999966,16cyclictest0-21swapper/007:55:130
31172999418,19cyclictest0-21swapper/112:30:101
31172999364,18cyclictest26-21ksoftirqd/107:20:221
3116999936,20cyclictest0-21swapper/012:25:130
3116999925,73cyclictest0-21swapper/011:50:150
31169999110,63cyclictest0-21swapper/012:10:170
3116999907,65cyclictest0-21swapper/009:55:120
31169999010,16cyclictest0-21swapper/010:15:100
31169999010,16cyclictest0-21swapper/008:45:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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