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2026-05-31 - 21:49
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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 May 31, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
288292214182,22sleep20-21swapper/207:08:262
286512208174,23sleep30-21swapper/307:06:053
268312207174,22sleep10-21swapper/107:05:111
286832202168,22sleep00-21swapper/007:06:300
2121121510,6sleep12925399cyclictest10:15:021
2104821220,2sleep10-21swapper/111:20:171
54572770,5sleep12925399cyclictest10:49:591
29254996510,19cyclictest23504-21latency_hist08:05:002
139391580,1ptp4l401ktimersoftd/307:45:253
139391560,1ptp4l401ktimersoftd/308:10:003
139391560,0ptp4l401ktimersoftd/309:21:543
29252995211,22cyclictest1317-21runrttasks10:42:330
139391520,1ptp4l391rcuc/307:24:383
2925299496,2cyclictest8811-21seq12:01:230
139391460,0ptp4l401ktimersoftd/312:30:243
29252994510,20cyclictest18631-21seq10:10:030
139391450,0ptp4l401ktimersoftd/311:45:153
139391450,0ptp4l401ktimersoftd/309:56:363
139391450,0ptp4l401ktimersoftd/309:56:353
139391440,0ptp4l401ktimersoftd/311:27:423
139391440,0ptp4l401ktimersoftd/309:10:253
139391430,0ptp4l401ktimersoftd/312:15:213
139391430,0ptp4l401ktimersoftd/307:43:493
29254994213,27cyclictest10701-21kworker/2:007:40:232
139391410,0ptp4l401ktimersoftd/310:44:333
2925499409,28cyclictest3426-21sensors11:50:232
29255993933,3cyclictest41-21ksoftirqd/307:20:003
29253993933,4cyclictest25-21ksoftirqd/109:49:481
29253993933,4cyclictest25-21ksoftirqd/109:49:481
139391390,0ptp4l401ktimersoftd/309:30:293
2925499374,30cyclictest12738-21latency_hist08:50:002
29254993731,4cyclictest14852-21sh11:09:592
29254993714,20cyclictest8494-21expr12:00:232
29253993732,3cyclictest25-21ksoftirqd/108:35:111
29253993731,4cyclictest25-21ksoftirqd/108:27:441
29252993730,5cyclictest9-21ksoftirqd/008:30:010
139391370,0ptp4l401ktimersoftd/311:08:283
139391370,0ptp4l401ktimersoftd/310:05:063
57898360,2rtkit-daemon0-21swapper/310:29:093
29255993631,3cyclictest41-21ksoftirqd/311:45:003
29255993631,3cyclictest41-21ksoftirqd/310:15:013
29255993631,3cyclictest41-21ksoftirqd/308:20:113
2925499368,26cyclictest11506-21kworker/2:210:20:232
2925499367,26cyclictest12974-21cpu08:50:132
29254993631,3cyclictest3239-21cron08:30:012
29254993630,4cyclictest33-21ksoftirqd/207:25:342
29253993630,4cyclictest25-21ksoftirqd/112:36:071
29253993630,4cyclictest25-21ksoftirqd/111:26:151
29253993630,4cyclictest25-21ksoftirqd/110:53:331
29253993630,4cyclictest25-21ksoftirqd/110:38:491
29253993630,4cyclictest25-21ksoftirqd/107:58:101
29253993629,4cyclictest25-21ksoftirqd/107:40:101
29252993630,4cyclictest9-21ksoftirqd/010:47:550
29252993630,4cyclictest9-21ksoftirqd/008:37:530
57898350,2rtkit-daemon0-21swapper/310:21:273
57898350,1rtkit-daemon577-21rtkit-daemon08:47:440
29255993530,3cyclictest41-21ksoftirqd/311:24:283
29255993530,3cyclictest41-21ksoftirqd/309:05:003
2925499355,28cyclictest0-21swapper/209:30:232
29253993530,3cyclictest25-21ksoftirqd/108:57:581
29253993529,4cyclictest25-21ksoftirqd/112:33:291
29253993529,4cyclictest25-21ksoftirqd/109:15:291
29253993529,4cyclictest25-21ksoftirqd/109:11:271
29253993529,4cyclictest25-21ksoftirqd/108:12:581
29253993529,4cyclictest25-21ksoftirqd/107:17:081
29253993528,4cyclictest25-21ksoftirqd/109:00:121
29252993528,5cyclictest9-21ksoftirqd/012:31:530
29255993430,3cyclictest41-21ksoftirqd/309:35:193
29255993430,3cyclictest41-21ksoftirqd/308:17:183
29255993430,3cyclictest41-21ksoftirqd/307:29:173
29255993429,3cyclictest41-21ksoftirqd/309:42:353
29255993429,3cyclictest41-21ksoftirqd/307:55:003
29255993428,4cyclictest41-21ksoftirqd/307:56:033
29254993428,4cyclictest33-21ksoftirqd/212:18:582
29254993428,4cyclictest33-21ksoftirqd/210:58:232
29254993428,4cyclictest33-21ksoftirqd/209:27:172
29254993428,4cyclictest33-21ksoftirqd/208:56:162
29254993428,4cyclictest33-21ksoftirqd/208:35:582
2925499340,32cyclictest8921-21latency_hist09:50:002
2925499340,32cyclictest8921-21latency_hist09:50:002
29253993429,3cyclictest25-21ksoftirqd/109:55:101
29253993429,3cyclictest25-21ksoftirqd/109:55:101
29253993429,3cyclictest25-21ksoftirqd/109:43:531
29253993428,4cyclictest25-21ksoftirqd/111:09:461
29253993428,4cyclictest25-21ksoftirqd/108:42:471
29253993428,4cyclictest25-21ksoftirqd/107:51:521
29253993428,4cyclictest25-21ksoftirqd/107:31:341
29253993427,5cyclictest25-21ksoftirqd/112:05:421
29253993427,5cyclictest25-21ksoftirqd/112:05:411
29252993428,4cyclictest9-21ksoftirqd/011:38:170
29252993428,4cyclictest9-21ksoftirqd/011:04:030
29255993329,2cyclictest41-21ksoftirqd/311:30:063
29255993328,3cyclictest41-21ksoftirqd/312:25:183
29255993328,3cyclictest41-21ksoftirqd/311:15:183
29255993328,3cyclictest41-21ksoftirqd/310:16:353
29255993328,3cyclictest41-21ksoftirqd/308:35:003
29255993328,3cyclictest41-21ksoftirqd/307:30:113
29255993328,2cyclictest41-21ksoftirqd/309:05:193
29254993328,3cyclictest33-21ksoftirqd/211:20:122
29254993327,4cyclictest33-21ksoftirqd/211:13:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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