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2026-05-13 - 09:12
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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
Characteristics of the 50 highest latencies:
System rackcslot4.osadl.org (updated Wed May 13, 2026 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40871052262192,54sleep00-21swapper/019:06:120
40870912237195,28sleep10-21swapper/119:06:031
7947921410,3sleep1251rcuc/100:15:021
179699650,4rtkit-daemon1795-21rtkit-daemon23:44:451
4087579995214,10cyclictest26-21ksoftirqd/100:00:001
179699510,4rtkit-daemon1795-21rtkit-daemon00:10:100
179699510,4rtkit-daemon1795-21rtkit-daemon00:10:100
179699500,4rtkit-daemon1795-21rtkit-daemon00:19:530
179699490,4rtkit-daemon1795-21rtkit-daemon19:12:520
179699490,4rtkit-daemon1795-21rtkit-daemon19:12:520
4087579994717,7cyclictest26-21ksoftirqd/119:59:591
179699470,4rtkit-daemon1795-21rtkit-daemon23:28:121
179699470,4rtkit-daemon1795-21rtkit-daemon20:42:001
179699470,3rtkit-daemon1795-21rtkit-daemon21:59:350
4087579994516,11cyclictest26-21ksoftirqd/100:30:011
4087579994511,10cyclictest26-21ksoftirqd/123:00:001
179699450,3rtkit-daemon1795-21rtkit-daemon00:03:301
408757999449,10cyclictest26-21ksoftirqd/121:20:011
408757999448,9cyclictest26-21ksoftirqd/120:55:021
4087579994410,10cyclictest26-21ksoftirqd/121:40:001
179699440,6rtkit-daemon4152531-21fschecks_count21:30:181
179699440,1rtkit-daemon1795-21rtkit-daemon21:48:150
408757999439,10cyclictest26-21ksoftirqd/123:55:011
408757999439,10cyclictest26-21ksoftirqd/120:59:591
179699430,3rtkit-daemon0-21swapper/023:01:371
40989502420,4sleep04098948-21seq19:35:220
408757999427,8cyclictest4181721-21python322:10:021
408757999424,10cyclictest4136294-21python321:10:011
408757999423,9cyclictest79080-21python300:15:001
408757999423,9cyclictest79080-21python300:15:001
4087579994211,9cyclictest26-21ksoftirqd/120:40:011
4087579994211,10cyclictest26-21ksoftirqd/122:55:011
4087579994211,10cyclictest26-21ksoftirqd/120:15:001
179699420,3rtkit-daemon0-21swapper/023:09:381
4087579994113,4cyclictest26-21ksoftirqd/121:53:211
4087579994110,10cyclictest26-21ksoftirqd/122:25:011
179699410,5rtkit-daemon4104132-21dump-pmu-power19:49:551
179699410,4rtkit-daemon1795-21rtkit-daemon23:15:491
179699410,3rtkit-daemon0-21swapper/021:15:370
408757999408,10cyclictest26-21ksoftirqd/122:20:001
179699400,4rtkit-daemon1795-21rtkit-daemon23:33:201
179699400,3rtkit-daemon1795-21rtkit-daemon20:30:191
179699400,3rtkit-daemon0-21swapper/000:08:381
408757999391,8cyclictest4127708-21cmp20:50:011
4087579993911,5cyclictest26-21ksoftirqd/100:39:591
179699390,4rtkit-daemon4136269-21diskmemload22:48:240
179699390,3rtkit-daemon0-21swapper/122:03:251
179699390,3rtkit-daemon0-21swapper/022:48:561
408757999389,5cyclictest26-21ksoftirqd/121:45:001
408757999388,10cyclictest26-21ksoftirqd/121:10:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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