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2026-04-13 - 20:54
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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 rackdslot1.osadl.org (updated Mon Apr 13, 2026 12:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1086222210,7sleep210830-21sh07:09:502
1621521950,5sleep116217-21sh07:08:001
2642121820,6sleep22013599cyclictest07:10:112
873221800,7sleep08730-21od07:07:230
1564021790,6sleep30-21swapper/307:08:593
989521680,6sleep32013699cyclictest07:10:333
1903721640,6sleep02013399cyclictest10:35:240
134491670,3ptp4l8959-21df_inode10:15:161
20135996533,4cyclictest33-21ksoftirqd/212:25:252
20135996529,6cyclictest33-21ksoftirqd/209:55:192
20135996525,9cyclictest33-21ksoftirqd/207:39:262
20135996433,5cyclictest33-21ksoftirqd/209:50:222
20135996429,7cyclictest33-21ksoftirqd/211:30:222
20135996335,6cyclictest33-21ksoftirqd/210:15:162
20135996328,6cyclictest33-21ksoftirqd/209:05:002
20135996325,8cyclictest33-21ksoftirqd/209:10:482
20135996325,5cyclictest33-21ksoftirqd/210:05:202
20135996324,6cyclictest33-21ksoftirqd/210:45:242
20135996229,6cyclictest33-21ksoftirqd/212:30:162
20135996227,8cyclictest33-21ksoftirqd/208:51:232
20135996223,8cyclictest33-21ksoftirqd/210:55:392
20135996129,4cyclictest33-21ksoftirqd/208:20:222
20135996127,4cyclictest33-21ksoftirqd/209:35:132
20135996127,4cyclictest33-21ksoftirqd/209:25:212
20135996124,8cyclictest33-21ksoftirqd/211:19:102
134491610,4ptp4l0-21swapper/307:46:233
20135996030,7cyclictest33-21ksoftirqd/207:55:002
20135996028,4cyclictest33-21ksoftirqd/212:00:262
20135996026,6cyclictest33-21ksoftirqd/207:20:192
20135996026,5cyclictest33-21ksoftirqd/210:30:262
20135996024,7cyclictest33-21ksoftirqd/210:41:432
20135996024,7cyclictest33-21ksoftirqd/207:45:392
20135995921,8cyclictest33-21ksoftirqd/212:39:482
20135995919,8cyclictest33-21ksoftirqd/210:23:292
20135995826,6cyclictest33-21ksoftirqd/211:25:162
20135995825,3cyclictest33-21ksoftirqd/211:20:192
20135995823,7cyclictest33-21ksoftirqd/211:10:202
20135995821,8cyclictest33-21ksoftirqd/208:10:432
134491580,3ptp4l0-21swapper/308:41:353
20135995726,5cyclictest33-21ksoftirqd/210:35:172
20135995721,9cyclictest33-21ksoftirqd/209:15:252
20135995721,9cyclictest33-21ksoftirqd/209:15:252
20135995721,6cyclictest33-21ksoftirqd/207:15:182
134491570,4ptp4l0-21swapper/110:12:211
134491570,4ptp4l0-21swapper/007:30:200
134491570,3ptp4l11141-21od07:10:341
20135995628,6cyclictest33-21ksoftirqd/212:10:122
20135995624,5cyclictest33-21ksoftirqd/208:55:162
20135995624,3cyclictest33-21ksoftirqd/207:57:162
20135995618,8cyclictest33-21ksoftirqd/208:31:012
134491560,4ptp4l0-21swapper/208:05:162
134491560,3ptp4l0-21swapper/007:13:290
20135995524,5cyclictest33-21ksoftirqd/212:15:272
134491550,4ptp4l0-21swapper/311:06:093
134491550,4ptp4l0-21swapper/007:20:140
134491550,3ptp4l0-21swapper/008:15:230
20135995427,6cyclictest33-21ksoftirqd/207:44:522
20135995426,7cyclictest33-21ksoftirqd/211:35:272
20135995424,9cyclictest33-21ksoftirqd/211:05:142
20135995421,3cyclictest33-21ksoftirqd/209:50:002
20135995420,4cyclictest33-21ksoftirqd/210:00:502
20135995418,14cyclictest33-21ksoftirqd/208:35:502
134491540,4ptp4l0-21swapper/307:55:143
134491540,4ptp4l0-21swapper/110:56:591
134491540,4ptp4l0-21swapper/011:23:320
2013599535,7cyclictest33-21ksoftirqd/211:55:232
2013599533,7cyclictest0-21swapper/209:05:152
2013599533,3cyclictest33-21ksoftirqd/211:40:172
2013599533,3cyclictest33-21ksoftirqd/211:40:162
20135995323,7cyclictest33-21ksoftirqd/207:30:012
20135995320,6cyclictest33-21ksoftirqd/208:40:232
20135995318,4cyclictest33-21ksoftirqd/209:30:222
20135995317,5cyclictest33-21ksoftirqd/208:45:232
134491530,12ptp4l0-21swapper/011:59:200
20135995225,7cyclictest33-21ksoftirqd/211:45:252
134491520,3ptp4l0-21swapper/108:20:231
134491520,12ptp4l0-21swapper/310:43:333
20135995121,5cyclictest33-21ksoftirqd/212:20:192
20135995118,5cyclictest33-21ksoftirqd/209:20:152
20135995118,4cyclictest33-21ksoftirqd/208:00:252
2013599511,3cyclictest33-21ksoftirqd/212:05:262
134491510,4ptp4l0-21swapper/309:46:573
134491510,4ptp4l0-21swapper/307:16:053
134491510,4ptp4l0-21swapper/107:34:181
134491510,3ptp4l0-21swapper/309:40:263
134491510,3ptp4l0-21swapper/111:24:431
134491510,10ptp4l0-21swapper/308:23:003
2013599504,6cyclictest33-21ksoftirqd/209:44:522
2013599503,6cyclictest0-21swapper/210:25:212
134491500,4ptp4l0-21swapper/310:39:363
134491500,4ptp4l0-21swapper/112:29:471
134491500,4ptp4l0-21swapper/110:08:331
134491500,3ptp4l0-21swapper/109:38:571
134491500,3ptp4l0-21swapper/109:20:201
134491500,3ptp4l0-21swapper/010:19:160
2013599495,5cyclictest33-21ksoftirqd/207:30:232
2013599493,5cyclictest33-21ksoftirqd/208:15:232
2013599492,3cyclictest33-21ksoftirqd/210:10:262
2013599490,3cyclictest121rcu_preempt11:50:162
134491490,4ptp4l0-21swapper/312:22:523
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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