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2026-08-26 - 18:19
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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 100 highest latencies:
System rack3slot6.osadl.org (updated Wed Aug 26, 2026 12:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
310299912811,103cyclictest0-21swapper/011:35:140
31029991149,83cyclictest0-21swapper/008:00:130
310299911410,80cyclictest0-21swapper/007:50:120
310299911366,28cyclictest14-21ksoftirqd/012:35:140
310299911210,80cyclictest0-21swapper/010:00:130
310329911011,43cyclictest25905-21latency_hist09:55:021
310299910958,31cyclictest14-21ksoftirqd/009:35:140
310299910551,34cyclictest0-21swapper/007:55:260
310329910314,29cyclictest0-21swapper/111:10:121
310299910341,41cyclictest14-21ksoftirqd/009:20:140
310299910232,49cyclictest14-21ksoftirqd/012:05:110
31029999933,47cyclictest14-21ksoftirqd/011:00:250
3102999986,20cyclictest0-21swapper/009:50:130
31029999813,64cyclictest0-21swapper/011:15:130
3102999966,21cyclictest0-21swapper/009:00:130
3102999939,23cyclictest0-21swapper/010:40:100
3051629021,24sleep00-21swapper/007:06:300
31032998912,32cyclictest0-21swapper/107:45:121
31032998911,34cyclictest4911-21apt-get08:55:151
3102999896,55cyclictest10030-21diskmemload09:10:120
3102999889,57cyclictest0-21swapper/007:25:110
31029998841,29cyclictest14-21ksoftirqd/008:55:250
31029998826,42cyclictest14-21ksoftirqd/010:20:150
3102999858,53cyclictest0-21swapper/012:15:130
31029998526,40cyclictest14-21ksoftirqd/008:15:120
31029998514,51cyclictest0-21swapper/011:05:120
3085028524,16sleep10-21swapper/107:09:331
31029998427,40cyclictest14-21ksoftirqd/009:30:120
31029998412,50cyclictest0-21swapper/008:50:120
3102999839,56cyclictest0-21swapper/007:20:110
3102999838,57cyclictest0-21swapper/007:35:130
3102999837,58cyclictest0-21swapper/007:10:140
31029998313,49cyclictest0-21swapper/010:45:140
3102999828,58cyclictest0-21swapper/010:15:250
31029998234,29cyclictest0-21swapper/008:05:120
31029998217,48cyclictest0-21swapper/009:55:130
3102999818,53cyclictest0-21swapper/008:40:230
3102999817,52cyclictest0-21swapper/011:10:130
31029998137,25cyclictest0-21swapper/012:25:130
31029998137,25cyclictest0-21swapper/012:25:130
31029998130,30cyclictest0-21swapper/011:30:100
3102999809,54cyclictest0-21swapper/012:00:230
3102999798,50cyclictest0-21swapper/008:30:110
3102999797,21cyclictest0-21swapper/008:20:140
3102999796,54cyclictest0-21swapper/011:45:270
3102999796,54cyclictest0-21swapper/011:25:130
31029997910,52cyclictest0-21swapper/010:55:140
3102999787,51cyclictest0-21swapper/010:05:120
31029997733,28cyclictest0-21swapper/010:50:120
31032997510,25cyclictest6477-21apt-get07:30:161
3102999759,20cyclictest0-21swapper/011:40:120
3102999755,48cyclictest0-21swapper/009:40:120
31029997529,28cyclictest0-21swapper/010:10:110
3102999748,45cyclictest0-21swapper/009:15:120
3102999739,50cyclictest0-21swapper/007:30:230
3102999737,47cyclictest0-21swapper/011:20:130
3102999736,47cyclictest0-21swapper/009:25:120
3102999736,46cyclictest0-21swapper/007:40:130
3102999734,49cyclictest0-21swapper/008:35:130
3102999734,27cyclictest0-21swapper/012:30:120
3102999727,47cyclictest0-21swapper/011:50:130
3102999727,47cyclictest0-21swapper/011:50:130
31029997232,23cyclictest0-21swapper/009:05:140
31029997229,25cyclictest0-21swapper/008:45:130
3102999716,47cyclictest0-21swapper/007:45:130
3102999706,47cyclictest0-21swapper/010:35:140
3102999706,46cyclictest0-21swapper/010:30:130
3102999697,44cyclictest0-21swapper/011:55:130
3102999697,44cyclictest0-21swapper/011:55:130
3102999686,47cyclictest0-21swapper/009:45:130
3102999685,46cyclictest0-21swapper/008:25:130
3102999685,46cyclictest0-21swapper/008:10:140
3102999677,21cyclictest0-21swapper/007:15:250
3102999676,46cyclictest0-21swapper/012:10:120
3102999676,46cyclictest0-21swapper/010:25:130
3102999676,44cyclictest0-21swapper/012:20:160
31032996612,40cyclictest5893-21apt-get12:00:161
31032996327,10cyclictest31020-21cyclictest07:45:011
3103299614,18cyclictest10030-21diskmemload09:10:161
31032996141,11cyclictest26-21ksoftirqd/112:40:011
31032996137,17cyclictest28276-21grep11:30:301
31032996124,10cyclictest31020-21cyclictest10:19:271
31032996112,43cyclictest0-21swapper/108:40:391
31032996042,11cyclictest26-21ksoftirqd/110:55:001
3103299596,46cyclictest0-21swapper/108:10:331
3103299595,27cyclictest31109-21apt-get07:10:131
31032995940,11cyclictest26-21ksoftirqd/111:40:011
3103299593,17cyclictest426-21cstates07:15:031
31032995925,28cyclictest0-21swapper/109:40:201
3103299589,43cyclictest0-21swapper/107:25:361
3103299586,46cyclictest0-21swapper/110:05:421
31032995841,11cyclictest0-21swapper/107:35:361
31032995840,11cyclictest26-21ksoftirqd/110:00:011
31032995839,11cyclictest26-21ksoftirqd/108:35:001
31032995814,32cyclictest0-21swapper/112:05:131
31032995811,41cyclictest0-21swapper/112:15:321
3103299576,45cyclictest0-21swapper/110:10:321
3103299575,42cyclictest17452-21apt-get08:00:141
3103299575,26cyclictest0-21swapper/110:27:021
3103299574,46cyclictest19278-21memory11:05:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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