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2026-08-08 - 08:21
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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 100 highest latencies:
System rack6slot0.osadl.org (updated Sat Aug 08, 2026 01:01:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2977799226200,24cyclictest0-21swapper/2122:06:0914
2977799226200,24cyclictest0-21swapper/2122:06:0914
2978899201193,4cyclictest0-21swapper/3023:45:1724
2978899201193,4cyclictest0-21swapper/3023:45:1724
2977799198167,12cyclictest171rcu_preempt19:54:3214
2977799198167,12cyclictest171rcu_preempt19:54:3114
2976499189118,54cyclictest0-21swapper/1000:17:022
2976499189118,54cyclictest0-21swapper/1000:17:012
2976499189118,54cyclictest0-21swapper/1000:17:012
2976399183149,31cyclictest14422-21kworker/u81:3+events_unbound00:34:0539
2976399183149,31cyclictest14422-21kworker/u81:3+events_unbound00:34:0439
2975999181159,6cyclictest0-21swapper/522:06:0935
2975999181159,6cyclictest0-21swapper/522:06:0935
2977799179144,33cyclictest0-21swapper/2122:58:3114
2977799179144,33cyclictest0-21swapper/2122:58:3114
2977799177149,11cyclictest0-21swapper/2100:09:0114
2977799177149,11cyclictest0-21swapper/2100:09:0114
2977799177149,11cyclictest0-21swapper/2100:09:0114
29792991741,102cyclictest0-21swapper/3200:40:0326
29792991741,102cyclictest0-21swapper/3200:40:0326
29792991741,102cyclictest0-21swapper/3200:40:0326
2976499174107,61cyclictest17636-21sshd22:49:532
2976499174107,61cyclictest17636-21sshd22:49:522
297629917244,119cyclictest0-21swapper/800:35:2338
297629917244,119cyclictest0-21swapper/800:35:2238
297629917244,119cyclictest0-21swapper/800:35:2238
2977899171109,49cyclictest37352-21CPU15
2977899171109,49cyclictest37352-21CPU15
2977899171109,49cyclictest37352-21CPU15
2979699170154,3cyclictest0-21swapper/3622:35:1830
2979699170154,3cyclictest0-21swapper/3622:35:1730
2977799170149,13cyclictest0-21swapper/2120:52:3014
2976499170136,29cyclictest0-21swapper/1000:35:412
2976499170136,29cyclictest0-21swapper/1000:35:412
2976499170136,29cyclictest0-21swapper/1000:35:412
2978299169158,6cyclictest0-21swapper/2522:45:5618
2978299169158,6cyclictest0-21swapper/2522:45:5518
2977799169117,21cyclictest0-21swapper/2122:43:1214
2977799169117,21cyclictest0-21swapper/2122:43:1214
2977799169117,21cyclictest0-21swapper/2122:43:1214
2976299169102,55cyclictest3547-21CPU38
2976299169102,55cyclictest3547-21CPU38
2975999168150,17cyclictest0-21swapper/522:35:1535
2975999168150,17cyclictest0-21swapper/522:35:1435
2975999167143,22cyclictest0-21swapper/500:13:3335
2975999167143,22cyclictest0-21swapper/500:13:3335
2977799166154,2cyclictest0-21swapper/2100:17:4414
2977799166154,2cyclictest0-21swapper/2100:17:4414
2977799166154,2cyclictest0-21swapper/2100:17:4414
2977799166149,13cyclictest0-21swapper/2119:45:0114
2977799166105,40cyclictest37265-21CPU14
2977799166105,40cyclictest37265-21CPU14
2977799166105,40cyclictest37265-21CPU14
2976499166106,46cyclictest0-21swapper/1023:45:002
2976499166106,46cyclictest0-21swapper/1023:45:002
2976499166106,46cyclictest0-21swapper/1023:45:002
2975399166136,28cyclictest0-21swapper/023:35:440
2975399166136,28cyclictest0-21swapper/023:35:440
2979299165115,40cyclictest0-21swapper/3200:11:1326
2979299165115,40cyclictest0-21swapper/3200:11:1326
2976499165111,47cyclictest0-21swapper/1023:00:182
2976499165111,47cyclictest0-21swapper/1023:00:182
2977899164120,38cyclictest0-21swapper/2223:16:4715
2977899164120,38cyclictest0-21swapper/2223:16:4715
2977799164116,33cyclictest0-21swapper/2121:45:5614
2977799164116,33cyclictest0-21swapper/2121:45:5614
2976299163140,14cyclictest0-21swapper/821:40:3638
2976299163140,14cyclictest0-21swapper/821:40:3638
29792991621,153cyclictest0-21swapper/3221:10:1826
29792991621,153cyclictest0-21swapper/3221:10:1826
29792991621,153cyclictest0-21swapper/3221:10:1826
2977799162134,10cyclictest0-21swapper/2122:51:3214
2977799162134,10cyclictest0-21swapper/2122:51:3214
2977799162134,10cyclictest0-21swapper/2122:51:3214
2975699162151,8cyclictest0-21swapper/320:21:3423
2975699162151,8cyclictest0-21swapper/320:21:3323
2975399162120,30cyclictest0-21swapper/022:31:090
2975399162120,30cyclictest0-21swapper/022:31:090
2979699161132,9cyclictest171rcu_preempt22:19:5730
2979699161132,9cyclictest171rcu_preempt22:19:5730
2977799161145,8cyclictest0-21swapper/2123:08:1514
2977799161145,8cyclictest0-21swapper/2123:08:1514
29764991612,95cyclictest2461-21CPU2
29764991612,95cyclictest2461-21CPU2
2976499161140,19cyclictest0-21swapper/1021:20:052
2976499161140,19cyclictest0-21swapper/1021:20:052
297779916084,32cyclictest0-21swapper/2121:20:1914
297779916084,32cyclictest0-21swapper/2121:20:1914
297779916084,32cyclictest0-21swapper/2121:20:1914
297649916089,53cyclictest0-21swapper/1023:50:572
297649916089,53cyclictest0-21swapper/1023:50:572
2977899159111,37cyclictest0-21swapper/2200:35:3215
2977899159111,37cyclictest0-21swapper/2200:35:3215
2977899159111,37cyclictest0-21swapper/2200:35:3215
2977799159135,11cyclictest171rcu_preempt23:15:0514
2977799159135,11cyclictest171rcu_preempt23:15:0514
2977799159126,8cyclictest0-21swapper/2100:32:3814
2977799159126,8cyclictest0-21swapper/2100:32:3814
2977799159108,14cyclictest0-21swapper/2120:01:3414
2977799159108,14cyclictest0-21swapper/2120:01:3414
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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