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2026-04-13 - 19:57
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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 Mon Apr 13, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491221155,23phc2sys0-21swapper/307:06:013
122932203169,23sleep00-21swapper/007:07:340
122122203171,21sleep10-21swapper/107:06:291
122952200168,21sleep20-21swapper/207:07:362
42112530,3sleep2321ktimersoftd/212:25:272
263982520,2sleep20-21swapper/208:45:112
139391500,1ptp4l401ktimersoftd/311:10:393
12943994715,7cyclictest25-21ksoftirqd/112:20:001
139391430,0ptp4l401ktimersoftd/311:23:153
1294399435,3cyclictest25-21ksoftirqd/110:50:211
12943994313,4cyclictest25-21ksoftirqd/107:10:151
139391420,0ptp4l401ktimersoftd/312:00:163
139391420,0ptp4l401ktimersoftd/309:07:273
1294399426,2cyclictest25-21ksoftirqd/109:50:161
12943994212,8cyclictest25-21ksoftirqd/110:05:281
12943994212,8cyclictest25-21ksoftirqd/110:05:271
12943994212,7cyclictest25-21ksoftirqd/108:30:201
12942994212,3cyclictest9-21ksoftirqd/008:20:000
139391410,0ptp4l401ktimersoftd/308:57:083
12945994135,3cyclictest41-21ksoftirqd/307:15:003
12944994136,3cyclictest0-21swapper/207:10:012
1294399417,6cyclictest25-21ksoftirqd/109:45:181
1294399416,6cyclictest25-21ksoftirqd/109:05:271
1294399416,3cyclictest25-21ksoftirqd/111:55:161
12943994112,8cyclictest25-21ksoftirqd/112:40:001
139391400,0ptp4l401ktimersoftd/309:25:303
12945994035,3cyclictest41-21ksoftirqd/310:40:003
12945994035,3cyclictest41-21ksoftirqd/310:40:003
12944994026,12cyclictest33-21ksoftirqd/212:40:012
1294399408,3cyclictest25-21ksoftirqd/108:55:261
1294399407,2cyclictest25-21ksoftirqd/107:30:161
1294399406,6cyclictest25-21ksoftirqd/111:50:241
1294399406,2cyclictest25-21ksoftirqd/108:20:211
12943994036,2cyclictest25-21ksoftirqd/107:30:011
12943994035,3cyclictest25-21ksoftirqd/109:20:001
12943994035,3cyclictest25-21ksoftirqd/108:50:011
1294399402,35cyclictest1317-21runrttasks09:03:381
12943994012,3cyclictest25-21ksoftirqd/110:55:231
12943994011,7cyclictest25-21ksoftirqd/111:20:151
139391390,1ptp4l401ktimersoftd/308:50:333
139391390,0ptp4l401ktimersoftd/312:30:253
1294599395,3cyclictest41-21ksoftirqd/309:50:003
1294399399,9cyclictest25-21ksoftirqd/108:52:321
1294399399,3cyclictest25-21ksoftirqd/110:10:221
1294399397,6cyclictest25-21ksoftirqd/112:10:221
1294399397,6cyclictest25-21ksoftirqd/107:20:221
1294399396,5cyclictest25-21ksoftirqd/110:48:011
1294399395,3cyclictest121rcu_preempt12:20:211
12943993934,3cyclictest25-21ksoftirqd/108:40:001
12943993934,3cyclictest25-21ksoftirqd/107:40:011
1294399393,2cyclictest121rcu_preempt11:15:211
12943993911,7cyclictest25-21ksoftirqd/110:30:161
1294399390,8cyclictest25-21ksoftirqd/110:15:241
12942993935,2cyclictest9-21ksoftirqd/009:40:000
12945993827,9cyclictest41-21ksoftirqd/310:20:233
12945993827,9cyclictest41-21ksoftirqd/308:00:243
1294399388,3cyclictest25-21ksoftirqd/111:45:241
1294399387,2cyclictest25-21ksoftirqd/110:35:241
1294399387,2cyclictest25-21ksoftirqd/110:35:241
1294399385,7cyclictest25-21ksoftirqd/108:05:211
1294399385,6cyclictest25-21ksoftirqd/107:45:181
1294399384,3cyclictest121rcu_preempt12:00:181
1294399384,3cyclictest121rcu_preempt07:50:251
1294399384,2cyclictest121rcu_preempt11:30:221
1294399383,7cyclictest25-21ksoftirqd/109:40:151
12943993833,2cyclictest25-21ksoftirqd/107:20:001
12943993827,3cyclictest25-21ksoftirqd/108:40:141
1294399382,3cyclictest25-21ksoftirqd/112:30:171
1294399382,3cyclictest121rcu_preempt11:35:181
12942993833,3cyclictest9-21ksoftirqd/007:15:010
12945993732,3cyclictest41-21ksoftirqd/310:55:003
12945993732,3cyclictest41-21ksoftirqd/310:45:003
12944993731,4cyclictest33-21ksoftirqd/208:09:242
12944993731,4cyclictest33-21ksoftirqd/207:52:082
1294399378,3cyclictest25-21ksoftirqd/108:25:171
1294399377,5cyclictest25-21ksoftirqd/112:25:221
1294399376,4cyclictest25-21ksoftirqd/111:30:001
1294399376,3cyclictest25-21ksoftirqd/111:10:271
1294399376,3cyclictest25-21ksoftirqd/111:00:131
1294399375,6cyclictest25-21ksoftirqd/109:10:231
1294399374,3cyclictest121rcu_preempt10:40:271
1294399373,3cyclictest121rcu_preempt10:25:131
1294399373,3cyclictest121rcu_preempt07:40:191
12943993733,2cyclictest25-21ksoftirqd/110:00:001
12943993731,4cyclictest25-21ksoftirqd/108:02:131
12943993730,4cyclictest25-21ksoftirqd/109:20:441
1294399372,4cyclictest25-21ksoftirqd/111:05:241
1294399372,4cyclictest25-21ksoftirqd/111:05:241
12942993734,2cyclictest9-21ksoftirqd/012:14:590
12942993732,3cyclictest9-21ksoftirqd/007:40:000
1294299370,5cyclictest7136-21ls12:35:000
12945993632,2cyclictest41-21ksoftirqd/310:00:003
12945993631,3cyclictest41-21ksoftirqd/311:00:173
12945993630,4cyclictest41-21ksoftirqd/312:19:023
12945993630,4cyclictest41-21ksoftirqd/311:50:343
12945993630,3cyclictest41-21ksoftirqd/312:25:133
12945993626,8cyclictest41-21ksoftirqd/308:45:223
12944993632,2cyclictest33-21ksoftirqd/210:50:012
12944993631,3cyclictest33-21ksoftirqd/208:40:002
12944993630,4cyclictest33-21ksoftirqd/208:14:582
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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