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2026-04-19 - 15:20
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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 rackdslot3.osadl.org (updated Sun Apr 19, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491207173,23phc2sys0-21swapper/307:07:473
103862204129,41sleep20-21swapper/207:05:102
103802204171,22sleep10-21swapper/107:05:041
123052202168,23sleep00-21swapper/007:07:250
1819021410,7sleep01280699cyclictest07:20:170
2242221330,3sleep31280999cyclictest09:45:003
139391900,1ptp4l6220-21ls10:15:263
139391850,1ptp4l391rcuc/309:50:253
1394918464,10phc2sys0-21swapper/307:10:003
263322630,2sleep10-21swapper/112:05:231
232322610,7sleep11280799cyclictest12:00:181
139391580,1ptp4l391rcuc/309:55:163
139391550,1ptp4l391rcuc/309:30:253
217472540,3sleep00-21swapper/008:35:170
119652510,2sleep20-21swapper/209:20:242
139391440,0ptp4l401ktimersoftd/308:29:293
12807994422,3cyclictest25-21ksoftirqd/110:10:011
139391430,0ptp4l401ktimersoftd/311:25:303
12807994313,4cyclictest25-21ksoftirqd/108:25:001
57898420,1rtkit-daemon0-21swapper/009:24:520
139391420,0ptp4l401ktimersoftd/307:54:063
12807994213,4cyclictest25-21ksoftirqd/109:45:221
1394914134,3phc2sys41-21ksoftirqd/310:25:003
12807994112,4cyclictest25-21ksoftirqd/108:30:161
57898400,4rtkit-daemon6631-21sh08:04:590
139391400,0ptp4l401ktimersoftd/310:35:273
139391400,0ptp4l401ktimersoftd/310:35:263
1280799405,2cyclictest121rcu_preempt08:45:251
12807994036,2cyclictest25-21ksoftirqd/111:00:001
12807994036,2cyclictest25-21ksoftirqd/109:20:001
12807994035,3cyclictest25-21ksoftirqd/110:45:001
12807994015,6cyclictest25-21ksoftirqd/107:10:231
1280799394,4cyclictest25-21ksoftirqd/109:25:261
12807993934,3cyclictest25-21ksoftirqd/111:45:221
12807993933,3cyclictest25-21ksoftirqd/111:50:131
12807993911,7cyclictest25-21ksoftirqd/107:50:191
12808993827,9cyclictest33-21ksoftirqd/212:20:002
1280799387,6cyclictest25-21ksoftirqd/110:50:231
12807993834,2cyclictest25-21ksoftirqd/109:30:281
12807993833,3cyclictest25-21ksoftirqd/112:15:001
12807993832,3cyclictest25-21ksoftirqd/111:20:211
12807993831,4cyclictest25-21ksoftirqd/107:21:591
1280799381,5cyclictest25-21ksoftirqd/107:45:271
12807993811,10cyclictest25-21ksoftirqd/112:40:011
12807993810,7cyclictest25-21ksoftirqd/110:25:141
1280999378,27cyclictest19152-21kworker/3:108:36:133
12809993731,4cyclictest41-21ksoftirqd/311:21:293
12809993731,4cyclictest41-21ksoftirqd/311:02:523
12808993730,5cyclictest33-21ksoftirqd/208:54:412
1280799379,3cyclictest25-21ksoftirqd/109:10:251
1280799377,3cyclictest25-21ksoftirqd/112:20:241
1280799377,3cyclictest25-21ksoftirqd/110:20:131
1280799377,3cyclictest25-21ksoftirqd/108:25:191
1280799377,2cyclictest25-21ksoftirqd/109:55:211
1280799375,2cyclictest25-21ksoftirqd/110:30:251
1280799375,2cyclictest121rcu_preempt12:15:191
1280799375,2cyclictest121rcu_preempt09:35:241
1280799374,2cyclictest121rcu_preempt10:35:261
1280799374,2cyclictest121rcu_preempt10:35:251
12807993733,3cyclictest25-21ksoftirqd/108:55:221
12807993733,3cyclictest25-21ksoftirqd/108:55:211
12807993732,3cyclictest25-21ksoftirqd/112:30:141
12807993732,3cyclictest25-21ksoftirqd/111:05:171
12807993731,3cyclictest25-21ksoftirqd/111:00:021
12807993731,3cyclictest25-21ksoftirqd/108:44:591
1280799371,4cyclictest25-21ksoftirqd/110:10:261
12809993630,4cyclictest41-21ksoftirqd/308:42:103
12809993630,3cyclictest641-21grep12:20:193
12809993629,4cyclictest41-21ksoftirqd/311:54:263
12808993631,3cyclictest33-21ksoftirqd/210:25:002
12808993629,4cyclictest6627-21cron08:04:592
1280799366,4cyclictest25-21ksoftirqd/111:11:221
12807993633,2cyclictest25-21ksoftirqd/109:05:231
12807993632,3cyclictest25-21ksoftirqd/110:45:271
12807993630,4cyclictest25-21ksoftirqd/111:18:421
12807993630,4cyclictest25-21ksoftirqd/110:01:321
12807993630,3cyclictest25-21ksoftirqd/110:20:001
12807993630,3cyclictest25-21ksoftirqd/107:25:131
12807993627,3cyclictest25-21ksoftirqd/108:05:181
1280799362,4cyclictest25-21ksoftirqd/111:30:141
57898350,6rtkit-daemon0-21swapper/010:30:540
12809993529,4cyclictest41-21ksoftirqd/312:07:303
12809993529,4cyclictest41-21ksoftirqd/311:56:513
12809993529,4cyclictest41-21ksoftirqd/307:49:283
12808993529,4cyclictest33-21ksoftirqd/210:45:502
12808993529,4cyclictest33-21ksoftirqd/210:34:262
1280799357,4cyclictest25-21ksoftirqd/111:25:201
1280799354,2cyclictest121rcu_preempt09:20:111
1280799354,2cyclictest121rcu_preempt07:30:141
12807993530,3cyclictest25-21ksoftirqd/111:55:251
12807993530,3cyclictest25-21ksoftirqd/109:55:001
12807993530,3cyclictest25-21ksoftirqd/108:10:131
12807993529,4cyclictest25-21ksoftirqd/108:01:011
12807993529,3cyclictest25-21ksoftirqd/108:35:271
12807993518,4cyclictest25-21ksoftirqd/107:45:001
1280799350,5cyclictest25-21ksoftirqd/107:35:141
1280799350,4cyclictest25-21ksoftirqd/107:55:021
12806993529,4cyclictest9-21ksoftirqd/010:39:490
12806993529,4cyclictest9-21ksoftirqd/010:39:490
12809993429,3cyclictest41-21ksoftirqd/307:15:503
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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