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2026-09-05 - 20:24
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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 rackdslot4.osadl.org (updated Sat Sep 05, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
253912206171,23sleep30-21swapper/307:05:023
275142203170,22sleep20-21swapper/207:08:002
275902201167,22sleep10-21swapper/107:08:581
253932201167,22sleep00-21swapper/007:05:040
27965995121,3cyclictest41-21ksoftirqd/309:42:393
27965995021,3cyclictest41-21ksoftirqd/310:11:193
2796599501,46cyclictest25395-21cron11:25:023
27965994821,3cyclictest41-21ksoftirqd/312:02:163
27965994740,4cyclictest22924-21cat11:20:013
27965994717,9cyclictest41-21ksoftirqd/310:00:423
2796599458,5cyclictest41-21ksoftirqd/307:54:403
138491440,0ptp4l401ktimersoftd/311:27:373
2796599438,5cyclictest41-21ksoftirqd/312:14:573
2796599438,4cyclictest41-21ksoftirqd/310:26:253
2796599426,4cyclictest41-21ksoftirqd/310:49:073
27964994231,9cyclictest33-21ksoftirqd/208:30:282
138491420,0ptp4l401ktimersoftd/309:07:563
27965994115,3cyclictest41-21ksoftirqd/308:19:473
27963994135,3cyclictest25-21ksoftirqd/108:15:171
138491410,0ptp4l401ktimersoftd/307:42:113
27965994015,6cyclictest41-21ksoftirqd/309:14:143
27965994014,7cyclictest41-21ksoftirqd/312:09:343
27965994014,7cyclictest41-21ksoftirqd/312:09:343
27963994035,3cyclictest25-21ksoftirqd/108:40:001
27965993934,3cyclictest11472-21irqrtprio09:50:233
27965993932,4cyclictest41-21ksoftirqd/310:53:153
27965993919,8cyclictest41-21ksoftirqd/308:50:173
27965993913,3cyclictest41-21ksoftirqd/307:20:293
27964993933,3cyclictest33-21ksoftirqd/207:20:012
27964993932,4cyclictest20409-21cron09:05:002
27963993935,3cyclictest25-21ksoftirqd/110:45:001
27963993935,3cyclictest25-21ksoftirqd/109:40:001
27963993935,2cyclictest25-21ksoftirqd/107:25:001
27963993933,4cyclictest25-21ksoftirqd/108:05:131
27963993933,4cyclictest25-21ksoftirqd/108:05:131
50798380,7rtkit-daemon0-21swapper/009:02:490
27965993814,9cyclictest41-21ksoftirqd/307:16:523
27965993814,6cyclictest41-21ksoftirqd/308:58:223
27965993814,3cyclictest41-21ksoftirqd/307:26:243
2796599380,5cyclictest0-21swapper/310:05:263
27963993834,2cyclictest25-21ksoftirqd/112:30:001
27963993834,2cyclictest25-21ksoftirqd/112:20:011
27963993833,3cyclictest25-21ksoftirqd/110:20:001
27963993833,2cyclictest25-21ksoftirqd/112:35:001
27963993832,3cyclictest25-21ksoftirqd/110:20:251
27963993831,5cyclictest25-21ksoftirqd/110:08:301
27962993834,2cyclictest9-21ksoftirqd/008:50:010
27965993731,4cyclictest41-21ksoftirqd/311:46:573
27965993731,4cyclictest41-21ksoftirqd/308:38:503
27965993715,3cyclictest41-21ksoftirqd/309:50:003
27965993714,7cyclictest41-21ksoftirqd/312:16:003
27965993712,7cyclictest41-21ksoftirqd/312:36:543
27965993712,4cyclictest41-21ksoftirqd/309:04:233
27964993732,3cyclictest30365-21cron11:35:002
27964993731,4cyclictest33-21ksoftirqd/209:51:232
2796399375,3cyclictest25-21ksoftirqd/108:00:201
27963993733,3cyclictest25-21ksoftirqd/111:00:221
27963993732,3cyclictest25-21ksoftirqd/112:00:181
27963993732,3cyclictest25-21ksoftirqd/108:50:001
27963993732,2cyclictest25-21ksoftirqd/111:40:271
27963993731,4cyclictest25-21ksoftirqd/110:11:351
27963993731,3cyclictest25-21ksoftirqd/110:55:141
27963993731,3cyclictest25-21ksoftirqd/107:50:001
27963993730,4cyclictest25-21ksoftirqd/108:25:011
2796399371,3cyclictest121rcu_preempt09:55:291
27962993730,5cyclictest9-21ksoftirqd/011:04:040
2796599366,6cyclictest41-21ksoftirqd/309:20:233
27965993618,9cyclictest41-21ksoftirqd/308:43:013
27965993613,8cyclictest41-21ksoftirqd/310:39:113
27965993613,8cyclictest41-21ksoftirqd/309:37:533
27965993612,3cyclictest41-21ksoftirqd/307:34:063
27964993631,3cyclictest33-21ksoftirqd/212:00:122
27964993630,4cyclictest33-21ksoftirqd/208:44:352
27964993630,4cyclictest33-21ksoftirqd/208:18:312
27964993630,4cyclictest33-21ksoftirqd/208:01:432
27964993630,3cyclictest33-21ksoftirqd/209:15:122
27964993629,5cyclictest33-21ksoftirqd/208:13:542
2796399365,5cyclictest25-21ksoftirqd/108:40:221
2796399365,3cyclictest25-21ksoftirqd/108:15:001
27963993632,3cyclictest25-21ksoftirqd/111:25:191
27963993631,3cyclictest25-21ksoftirqd/112:10:001
27963993631,3cyclictest25-21ksoftirqd/112:10:001
27963993631,3cyclictest25-21ksoftirqd/109:30:011
27963993631,3cyclictest25-21ksoftirqd/109:15:201
27963993631,2cyclictest25-21ksoftirqd/110:35:201
27963993630,4cyclictest25-21ksoftirqd/107:36:061
27963993630,3cyclictest25-21ksoftirqd/111:20:181
2796399361,4cyclictest25-21ksoftirqd/107:55:141
27962993632,2cyclictest9-21ksoftirqd/011:55:010
27962993630,4cyclictest9-21ksoftirqd/011:30:160
27962993630,4cyclictest9-21ksoftirqd/008:40:070
27962993630,4cyclictest9-21ksoftirqd/008:11:440
27965993530,3cyclictest41-21ksoftirqd/310:55:373
27965993530,3cyclictest41-21ksoftirqd/309:18:503
27965993529,4cyclictest41-21ksoftirqd/310:22:043
27965993513,8cyclictest41-21ksoftirqd/311:11:143
27964993530,3cyclictest33-21ksoftirqd/207:13:212
27964993529,4cyclictest33-21ksoftirqd/209:25:072
27964993529,4cyclictest33-21ksoftirqd/209:09:592
27964993529,4cyclictest33-21ksoftirqd/207:36:512
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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