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2026-04-01 - 04:47
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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 50 highest latencies:
System rack3slot6.osadl.org (updated Wed Apr 01, 2026 00:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
268659912693,20cyclictest14-21ksoftirqd/019:30:120
268659911779,25cyclictest14-21ksoftirqd/023:20:130
268659911174,23cyclictest14-21ksoftirqd/021:10:140
268659911112,85cyclictest0-21swapper/020:10:140
268659911012,30cyclictest0-21swapper/019:40:110
268659911010,85cyclictest0-21swapper/023:55:240
268659910913,82cyclictest0-21swapper/019:25:220
268659910911,84cyclictest0-21swapper/022:30:110
268659910767,27cyclictest14-21ksoftirqd/020:00:130
268659910712,34cyclictest0-21swapper/020:05:120
268659910667,26cyclictest14-21ksoftirqd/019:45:220
268709910511,29cyclictest0-21swapper/100:35:231
268659910565,26cyclictest0-21swapper/022:15:100
268659910513,25cyclictest0-21swapper/021:40:130
268659910512,28cyclictest0-21swapper/020:15:130
268659910511,82cyclictest0-21swapper/021:05:100
268709910412,30cyclictest0-21swapper/100:15:131
268659910322,68cyclictest20588-21kworker/0:123:40:150
268659910258,33cyclictest14-21ksoftirqd/023:15:140
268659910156,34cyclictest14-21ksoftirqd/022:40:110
2671029915,39sleep00-21swapper/019:09:550
26865999851,37cyclictest14-21ksoftirqd/022:05:140
26865999849,37cyclictest14-21ksoftirqd/022:35:120
26865999641,45cyclictest14-21ksoftirqd/022:00:130
26865999513,29cyclictest0-21swapper/020:35:110
26865999441,43cyclictest14-21ksoftirqd/020:20:120
26865999412,63cyclictest0-21swapper/023:00:140
26865999347,34cyclictest14-21ksoftirqd/019:15:110
26865999312,60cyclictest0-21swapper/020:25:170
26865999310,66cyclictest0-21swapper/021:00:170
26865999310,66cyclictest0-21swapper/021:00:160
26865999226,53cyclictest14-21ksoftirqd/021:20:130
26865999211,58cyclictest0-21swapper/021:25:140
26865999112,55cyclictest0-21swapper/023:05:130
26865999111,62cyclictest0-21swapper/023:35:130
26865999111,61cyclictest0-21swapper/023:25:130
26865999111,59cyclictest0-21swapper/023:30:120
26865999019,49cyclictest0-21swapper/023:45:100
26865999011,22cyclictest0-21swapper/022:10:130
26865999010,59cyclictest0-21swapper/022:20:140
26865999010,58cyclictest0-21swapper/023:50:140
26865999010,55cyclictest0-21swapper/020:40:110
26870998914,31cyclictest0-21swapper/123:10:121
26865998933,37cyclictest0-21swapper/022:25:130
26865998917,49cyclictest0-21swapper/020:50:110
26865998911,59cyclictest0-21swapper/020:55:130
26865998812,57cyclictest0-21swapper/000:30:140
26865998721,45cyclictest14-21ksoftirqd/020:30:110
2686599869,60cyclictest0-21swapper/000:00:140
2686599866,33cyclictest151rcu_preempt22:50:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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