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2025-12-25 - 16:48
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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 Thu Dec 25, 2025 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
106929910667,28cyclictest26-21ksoftirqd/112:30:151
106929910659,35cyclictest26-21ksoftirqd/109:10:161
106879910577,18cyclictest14-21ksoftirqd/010:20:160
106929910013,68cyclictest0-21swapper/108:25:101
10692999916,60cyclictest0-21swapper/111:15:131
10692999713,63cyclictest0-21swapper/109:00:141
10692999713,63cyclictest0-21swapper/109:00:131
10687999616,28cyclictest0-21swapper/012:05:110
10692999541,33cyclictest26-21ksoftirqd/111:50:141
10692999540,40cyclictest26-21ksoftirqd/112:00:151
10692999512,60cyclictest0-21swapper/112:25:151
10692999512,60cyclictest0-21swapper/112:25:141
10692999414,62cyclictest0-21swapper/109:20:121
10692999413,24cyclictest0-21swapper/110:05:151
10692999412,59cyclictest0-21swapper/108:50:231
10692999411,61cyclictest0-21swapper/108:30:131
10687999452,28cyclictest14-21ksoftirqd/008:20:160
1069299937,61cyclictest379-21chrt11:10:121
10692999213,63cyclictest0-21swapper/110:50:241
10692999213,58cyclictest0-21swapper/110:40:131
10692999213,56cyclictest0-21swapper/107:30:151
10692999211,60cyclictest0-21swapper/108:40:111
10692999117,53cyclictest0-21swapper/108:10:131
10687999150,28cyclictest14-21ksoftirqd/007:10:130
10692999013,57cyclictest0-21swapper/108:05:231
10692999012,57cyclictest0-21swapper/108:00:141
10687999017,63cyclictest36-21kcompactd007:45:240
1069299897,55cyclictest16742-21taskset10:25:111
10692998938,31cyclictest26-21ksoftirqd/112:35:131
10687998912,63cyclictest0-21swapper/008:30:100
10692998840,30cyclictest26-21ksoftirqd/110:35:131
10692998819,48cyclictest0-21swapper/109:05:131
10692998812,55cyclictest0-21swapper/109:55:241
10692998811,54cyclictest0-21swapper/110:00:131
10687998850,27cyclictest14-21ksoftirqd/010:55:160
10692998711,55cyclictest0-21swapper/108:15:131
10692998711,55cyclictest0-21swapper/108:15:121
10692998710,55cyclictest0-21swapper/110:45:121
1068799878,25cyclictest15254-21apt-get08:50:240
10687998713,63cyclictest0-21swapper/010:40:110
10687998713,61cyclictest0-21swapper/007:50:110
1068799868,62cyclictest22226-31find07:40:100
10687998645,29cyclictest14-21ksoftirqd/008:15:140
10687998645,29cyclictest14-21ksoftirqd/008:15:130
10687998512,61cyclictest0-21swapper/012:35:120
1069299847,52cyclictest500-21snmpd08:35:121
10692998412,54cyclictest0-21swapper/111:20:141
10687998414,61cyclictest0-21swapper/009:45:120
10687998412,62cyclictest0-21swapper/009:15:120
10687998412,60cyclictest0-21swapper/012:20:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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