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2026-08-14 - 01:42
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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 Thu Aug 13, 2026 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491227162,22phc2sys0-21swapper/307:08:393
267252203171,21sleep20-21swapper/207:09:412
264712203169,23sleep00-21swapper/007:06:210
265602202169,21sleep10-21swapper/107:07:321
946121690,2sleep20-21swapper/212:10:202
518521390,6sleep02705099cyclictest07:30:210
27053996210,11cyclictest4470-21sed08:35:243
23172610,3sleep22321-21irqrtprio09:40:202
27053996010,17cyclictest22082-21egrep09:15:133
27053996010,11cyclictest17423-21cut12:25:233
142872600,1sleep00-21swapper/012:20:170
2705399589,9cyclictest6305-21irqstats08:40:183
27053995810,15cyclictest16431-21mailstats11:15:233
2705399559,14cyclictest25438-21ls09:20:193
2705399558,16cyclictest0-21swapper/308:30:263
99522540,4sleep19884-21latency_hist08:50:001
227662540,3sleep00-21swapper/009:15:190
139391540,1ptp4l391rcuc/312:05:373
170712530,1sleep10-21swapper/110:10:201
2705399519,14cyclictest3150-21ps07:25:223
2705399519,14cyclictest15231-21ps07:50:233
57898470,12rtkit-daemon0-21swapper/112:38:591
2705399467,9cyclictest0-21swapper/307:40:153
27053994511,10cyclictest0-21swapper/310:50:243
27053994511,10cyclictest0-21swapper/310:50:233
139391440,0ptp4l401ktimersoftd/308:22:563
139391430,0ptp4l401ktimersoftd/310:27:493
139391430,0ptp4l401ktimersoftd/310:20:373
139391430,0ptp4l401ktimersoftd/310:20:373
139391420,0ptp4l401ktimersoftd/310:30:203
139391410,0ptp4l401ktimersoftd/310:42:283
139391410,0ptp4l401ktimersoftd/308:50:283
139391400,0ptp4l401ktimersoftd/311:35:003
139391400,0ptp4l401ktimersoftd/309:31:523
27051993931,6cyclictest25-21ksoftirqd/109:59:451
27053993810,15cyclictest27081-21apt-get07:10:123
27052993834,2cyclictest33-21ksoftirqd/210:30:012
27052993832,4cyclictest33-21ksoftirqd/211:45:492
27051993831,4cyclictest25-21ksoftirqd/110:55:131
57898370,2rtkit-daemon0-21swapper/111:16:071
27052993727,6cyclictest33-21ksoftirqd/207:40:132
27051993732,3cyclictest25-21ksoftirqd/111:55:001
27051993731,4cyclictest25-21ksoftirqd/110:28:211
27051993730,4cyclictest25-21ksoftirqd/110:05:121
27050993732,3cyclictest2750-21cron08:35:000
139391370,0ptp4l401ktimersoftd/308:05:143
27053993630,4cyclictest41-21ksoftirqd/307:33:083
27052993630,4cyclictest33-21ksoftirqd/212:39:232
27052993630,4cyclictest33-21ksoftirqd/210:03:192
27052993627,5cyclictest33-21ksoftirqd/208:30:122
27051993630,4cyclictest25-21ksoftirqd/111:02:471
27051993630,4cyclictest25-21ksoftirqd/109:44:201
27051993630,4cyclictest25-21ksoftirqd/108:43:141
27051993629,5cyclictest25-21ksoftirqd/108:39:171
27053993530,3cyclictest41-21ksoftirqd/311:30:013
27053993529,4cyclictest41-21ksoftirqd/312:34:003
27053993529,4cyclictest41-21ksoftirqd/311:22:313
27052993529,4cyclictest3975-21cron07:29:592
27052993529,4cyclictest33-21ksoftirqd/211:11:352
27052993529,4cyclictest33-21ksoftirqd/211:07:042
27052993529,4cyclictest33-21ksoftirqd/210:43:182
27052993529,4cyclictest33-21ksoftirqd/210:19:492
27052993529,4cyclictest33-21ksoftirqd/208:35:452
27051993530,3cyclictest25-21ksoftirqd/107:15:421
27051993529,4cyclictest25-21ksoftirqd/111:21:131
27051993529,4cyclictest25-21ksoftirqd/107:50:191
27050993529,4cyclictest9-21ksoftirqd/009:25:420
27050993529,4cyclictest9-21ksoftirqd/009:11:340
27050993529,4cyclictest9-21ksoftirqd/008:09:400
27050993529,4cyclictest9-21ksoftirqd/007:27:110
57898340,2rtkit-daemon0-21swapper/110:31:481
2705399349,15cyclictest21049-21mailstats09:10:233
27053993429,3cyclictest41-21ksoftirqd/312:04:133
27053993428,4cyclictest41-21ksoftirqd/311:34:583
27053993428,4cyclictest41-21ksoftirqd/310:11:063
27052993429,3cyclictest33-21ksoftirqd/211:03:492
27052993429,3cyclictest33-21ksoftirqd/208:02:152
27052993428,4cyclictest33-21ksoftirqd/211:36:422
27052993428,4cyclictest33-21ksoftirqd/211:16:522
27052993428,4cyclictest33-21ksoftirqd/209:57:212
27052993428,4cyclictest33-21ksoftirqd/208:23:302
27052993428,4cyclictest33-21ksoftirqd/208:10:102
27052993428,4cyclictest33-21ksoftirqd/207:33:042
27051993429,3cyclictest25-21ksoftirqd/111:34:551
27051993429,3cyclictest25-21ksoftirqd/110:03:221
27051993428,4cyclictest25-21ksoftirqd/110:18:501
27051993427,5cyclictest25-21ksoftirqd/111:46:561
27050993429,3cyclictest9-21ksoftirqd/009:35:190
27050993428,4cyclictest9-21ksoftirqd/011:25:000
27050993428,4cyclictest9-21ksoftirqd/010:48:260
27050993428,4cyclictest9-21ksoftirqd/010:38:100
27053993328,3cyclictest41-21ksoftirqd/309:07:123
27053993327,4cyclictest41-21ksoftirqd/311:44:493
27053993327,4cyclictest41-21ksoftirqd/309:43:263
27053993327,4cyclictest41-21ksoftirqd/308:57:373
27053993327,4cyclictest41-21ksoftirqd/308:12:353
27052993328,3cyclictest33-21ksoftirqd/210:58:492
27052993328,3cyclictest33-21ksoftirqd/210:48:182
27052993328,3cyclictest33-21ksoftirqd/209:49:102
27052993328,3cyclictest33-21ksoftirqd/209:30:492
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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