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2026-08-11 - 19:25
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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 Tue Aug 11, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491220158,51phc2sys0-21swapper/307:09:183
179422206173,22sleep20-21swapper/207:05:272
182842203170,22sleep10-21swapper/107:09:431
181102203170,22sleep00-21swapper/007:07:340
139391550,1ptp4l401ktimersoftd/312:15:433
139391480,1ptp4l401ktimersoftd/311:10:033
139391440,0ptp4l401ktimersoftd/312:14:433
139391440,0ptp4l401ktimersoftd/307:55:003
139391420,0ptp4l401ktimersoftd/309:25:013
1830624132,3sleep20-21swapper/207:10:012
139391410,0ptp4l401ktimersoftd/310:03:243
18771994035,3cyclictest25-21ksoftirqd/111:00:001
18771994034,3cyclictest25-21ksoftirqd/111:40:001
139391400,1ptp4l401ktimersoftd/311:52:173
57898390,8rtkit-daemon0-21swapper/011:45:050
18774993931,5cyclictest41-21ksoftirqd/308:05:013
18773993925,12cyclictest33-21ksoftirqd/208:59:392
18771993932,4cyclictest7573-21cron10:10:001
139391390,0ptp4l401ktimersoftd/309:42:323
18771993832,4cyclictest25-21ksoftirqd/109:45:211
18771993832,3cyclictest25-21ksoftirqd/107:55:001
139391380,0ptp4l401ktimersoftd/308:15:193
18774993731,3cyclictest41-21ksoftirqd/311:40:003
18773993732,3cyclictest33-21ksoftirqd/210:05:002
18771993732,3cyclictest25-21ksoftirqd/110:25:011
18771993732,3cyclictest25-21ksoftirqd/108:20:001
18771993731,4cyclictest25-21ksoftirqd/108:53:581
18771993731,3cyclictest25-21ksoftirqd/112:20:011
18769993730,3cyclictest24248-21sh10:45:000
18774993628,5cyclictest41-21ksoftirqd/310:07:403
18774993623,10cyclictest41-21ksoftirqd/308:00:003
18773993631,3cyclictest33-21ksoftirqd/212:25:132
18773993630,4cyclictest33-21ksoftirqd/210:09:482
18773993623,11cyclictest33-21ksoftirqd/211:23:412
18771993630,4cyclictest25-21ksoftirqd/110:41:081
18771993630,4cyclictest25-21ksoftirqd/110:00:341
18771993630,4cyclictest25-21ksoftirqd/109:10:461
18771993629,4cyclictest25-21ksoftirqd/107:20:151
18769993630,4cyclictest9-21ksoftirqd/012:16:230
18774993529,4cyclictest41-21ksoftirqd/309:17:003
18774993529,4cyclictest41-21ksoftirqd/308:37:143
18774993529,3cyclictest41-21ksoftirqd/310:55:203
18774993525,8cyclictest41-21ksoftirqd/311:25:013
18773993529,4cyclictest33-21ksoftirqd/211:13:382
18773993529,4cyclictest33-21ksoftirqd/208:38:332
18773993529,4cyclictest33-21ksoftirqd/207:54:122
18771993530,3cyclictest25-21ksoftirqd/112:00:001
18771993530,3cyclictest25-21ksoftirqd/111:50:181
18771993530,3cyclictest25-21ksoftirqd/111:45:001
18771993530,3cyclictest25-21ksoftirqd/109:30:191
18771993530,3cyclictest25-21ksoftirqd/109:25:101
18771993530,3cyclictest25-21ksoftirqd/108:25:141
18771993530,3cyclictest25-21ksoftirqd/108:10:011
18771993530,3cyclictest19490-21cron10:35:001
18771993529,4cyclictest25-21ksoftirqd/108:03:471
18771993528,5cyclictest25-21ksoftirqd/108:23:081
18771993528,4cyclictest25-21ksoftirqd/110:40:001
18769993529,4cyclictest9-21ksoftirqd/010:54:350
18769993529,4cyclictest9-21ksoftirqd/008:10:000
18774993429,3cyclictest41-21ksoftirqd/308:40:183
18774993427,5cyclictest41-21ksoftirqd/309:10:523
18774993427,4cyclictest41-21ksoftirqd/308:29:113
18774993427,4cyclictest41-21ksoftirqd/307:26:343
18773993429,3cyclictest33-21ksoftirqd/212:15:002
18773993429,3cyclictest33-21ksoftirqd/207:40:112
18773993428,4cyclictest33-21ksoftirqd/212:19:422
18773993428,4cyclictest33-21ksoftirqd/211:35:092
18773993428,4cyclictest33-21ksoftirqd/210:17:502
18773993428,4cyclictest33-21ksoftirqd/209:58:452
18771993430,2cyclictest25-21ksoftirqd/108:34:341
18771993429,3cyclictest25-21ksoftirqd/110:20:001
18771993429,3cyclictest25-21ksoftirqd/109:05:181
18771993429,3cyclictest25-21ksoftirqd/109:00:001
18771993428,4cyclictest25-21ksoftirqd/112:25:301
18771993428,4cyclictest25-21ksoftirqd/111:47:071
18771993428,4cyclictest25-21ksoftirqd/111:01:541
18771993428,4cyclictest25-21ksoftirqd/109:57:351
18771993428,4cyclictest25-21ksoftirqd/107:11:311
18771993428,3cyclictest25-21ksoftirqd/109:53:131
18771993427,5cyclictest25-21ksoftirqd/107:41:281
18771993427,4cyclictest25-21ksoftirqd/108:42:201
18769993429,3cyclictest9-21ksoftirqd/011:55:170
18769993428,4cyclictest9-21ksoftirqd/011:51:560
18769993428,4cyclictest9-21ksoftirqd/011:10:020
18769993428,4cyclictest9-21ksoftirqd/010:37:100
18769993428,4cyclictest9-21ksoftirqd/008:52:390
18774993327,4cyclictest41-21ksoftirqd/310:31:393
18774993327,4cyclictest41-21ksoftirqd/310:11:133
18774993327,4cyclictest41-21ksoftirqd/310:11:133
18774993327,4cyclictest41-21ksoftirqd/309:48:433
18774993327,4cyclictest41-21ksoftirqd/307:43:223
18774993327,3cyclictest41-21ksoftirqd/308:30:183
18773993329,3cyclictest33-21ksoftirqd/207:58:282
18773993328,3cyclictest33-21ksoftirqd/211:55:432
18773993328,3cyclictest33-21ksoftirqd/210:55:122
18773993328,3cyclictest33-21ksoftirqd/209:53:232
18773993328,3cyclictest33-21ksoftirqd/208:54:562
18773993328,3cyclictest33-21ksoftirqd/208:47:242
18773993327,4cyclictest33-21ksoftirqd/212:02:592
18773993327,4cyclictest33-21ksoftirqd/211:28:512
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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