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2026-06-07 - 11:16
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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 Sun Jun 07, 2026 00:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2685221658,119sleep00-21swapper/019:05:110
805321300,4sleep10-21swapper/122:15:351
897521060,7chrt8978-21grep23:50:260
1676821020,6chrt0-21swapper/021:10:270
4443999855,24cyclictest26-21ksoftirqd/121:50:151
243012970,6chrt24304-21wc00:35:000
4438999370,11cyclictest14-21ksoftirqd/019:35:130
4438999264,15cyclictest0-21swapper/019:20:130
4438999163,15cyclictest14-21ksoftirqd/020:50:150
4438999163,15cyclictest14-21ksoftirqd/000:35:130
4438999163,15cyclictest14-21ksoftirqd/000:35:130
4443999048,22cyclictest26-21ksoftirqd/122:05:121
4438999055,25cyclictest28417-21seq20:15:160
4438998968,10cyclictest14-21ksoftirqd/021:55:150
4438998863,13cyclictest14-21ksoftirqd/021:00:130
4438998756,21cyclictest0-21swapper/023:55:140
4438998664,10cyclictest14-21ksoftirqd/022:20:130
4438998553,17cyclictest14-21ksoftirqd/020:10:130
4443998440,23cyclictest26-21ksoftirqd/121:35:101
4438998462,12cyclictest14-21ksoftirqd/020:55:120
4438998457,14cyclictest14-21ksoftirqd/023:35:130
4438998456,15cyclictest14-21ksoftirqd/021:40:150
4438998361,12cyclictest14-21ksoftirqd/022:40:130
4438997951,15cyclictest14-21ksoftirqd/022:50:140
4438997916,19cyclictest0-21swapper/023:45:130
4438997848,19cyclictest14-21ksoftirqd/021:50:160
269227832,34sleep10-21swapper/119:05:121
4438997753,16cyclictest14-21ksoftirqd/023:15:120
4438997748,19cyclictest14-21ksoftirqd/000:10:240
4438997650,14cyclictest14-21ksoftirqd/021:25:110
4438997648,18cyclictest14-21ksoftirqd/021:15:250
4438997648,16cyclictest14-21ksoftirqd/000:15:140
4438997549,15cyclictest14-21ksoftirqd/000:00:110
4443997439,21cyclictest26-21ksoftirqd/123:40:141
4438997450,16cyclictest14-21ksoftirqd/019:30:130
4438997449,17cyclictest14-21ksoftirqd/021:30:240
4438997446,21cyclictest14-21ksoftirqd/000:20:140
4438997313,17cyclictest0-21swapper/023:25:140
4438997249,13cyclictest14-21ksoftirqd/019:45:240
4438997245,22cyclictest14-21ksoftirqd/023:00:120
4438997245,19cyclictest14-21ksoftirqd/022:05:130
4438997145,14cyclictest0-21swapper/020:25:120
4438996943,19cyclictest14-21ksoftirqd/021:21:340
4438996940,23cyclictest14-21ksoftirqd/023:10:120
4438996841,17cyclictest0-21swapper/023:40:150
4438996841,15cyclictest0-21swapper/020:20:220
4438996835,23cyclictest14-21ksoftirqd/020:30:140
4443996711,49cyclictest0-21swapper/119:20:361
4438996737,17cyclictest14-21ksoftirqd/023:05:260
4438996640,20cyclictest14-21ksoftirqd/019:15:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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