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2026-07-07 - 22:05
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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 Jul 07, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9585999467,13cyclictest14-21ksoftirqd/011:25:120
907029219,27sleep00-21swapper/007:06:290
899929221,24sleep10-21swapper/107:05:441
9585999057,21cyclictest14-21ksoftirqd/009:25:150
9585998765,11cyclictest14-21ksoftirqd/007:30:160
301512870,6sleep10-21swapper/109:35:331
320982840,9chrt0-21swapper/108:10:231
9585998253,18cyclictest14-21ksoftirqd/009:55:120
9585998153,16cyclictest14-21ksoftirqd/011:15:150
9585998153,16cyclictest14-21ksoftirqd/007:15:250
9585998152,18cyclictest14-21ksoftirqd/010:00:160
9585998150,18cyclictest0-21swapper/008:55:130
9585998150,17cyclictest14-21ksoftirqd/011:30:140
9585998115,50cyclictest0-21swapper/010:30:240
958599787,29cyclictest23921-21tr09:20:000
9585997851,16cyclictest14-21ksoftirqd/009:45:120
9585997850,17cyclictest14-21ksoftirqd/010:05:130
9585997844,22cyclictest14-21ksoftirqd/011:10:130
9585997752,17cyclictest14-21ksoftirqd/008:05:150
9585997651,17cyclictest14-21ksoftirqd/009:40:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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