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2026-08-31 - 19:33
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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 rackdslot4.osadl.org (updated Mon Aug 31, 2026 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591206171,23phc2sys0-21swapper/307:07:363
108672204171,22sleep10-21swapper/107:06:171
110972203168,23sleep00-21swapper/007:09:170
110742201169,21sleep20-21swapper/207:08:592
988421570,7sleep01145399cyclictest08:10:190
138491680,1ptp4l401ktimersoftd/309:20:153
249592560,1sleep30-21swapper/311:55:193
138491560,1ptp4l401ktimersoftd/310:41:223
213872550,3sleep20-21swapper/211:50:012
106882530,2sleep10-21swapper/109:15:261
105072500,2sleep00-21swapper/009:15:260
138491480,40ptp4l0-21swapper/307:10:013
11454994615,29cyclictest8400-21kworker/1:207:15:441
138491450,0ptp4l401ktimersoftd/312:30:163
11454994531,12cyclictest25-21ksoftirqd/109:31:511
11454994531,12cyclictest25-21ksoftirqd/109:31:511
138491440,0ptp4l401ktimersoftd/308:13:163
138491430,1ptp4l401ktimersoftd/311:05:033
138491430,0ptp4l401ktimersoftd/310:05:163
11456994324,16cyclictest6373-21cron12:25:003
11456994324,16cyclictest6373-21cron12:25:003
138491420,0ptp4l401ktimersoftd/310:45:143
138491420,0ptp4l401ktimersoftd/309:55:163
11454994229,11cyclictest25-21ksoftirqd/108:31:591
138491410,1ptp4l0-21swapper/311:46:423
11456993934,3cyclictest41-21ksoftirqd/307:40:003
11455993936,2cyclictest33-21ksoftirqd/208:05:002
11456993824,4cyclictest41-21ksoftirqd/308:40:213
11455993835,2cyclictest33-21ksoftirqd/207:40:012
11455993834,3cyclictest33-21ksoftirqd/207:34:592
11455993833,3cyclictest33-21ksoftirqd/209:50:002
11455993833,3cyclictest33-21ksoftirqd/208:50:002
11454993833,3cyclictest25-21ksoftirqd/110:40:011
11454993833,3cyclictest25-21ksoftirqd/108:40:011
2290323730,3sleep233-21ksoftirqd/211:50:272
11455993732,3cyclictest33-21ksoftirqd/211:25:202
11455993732,3cyclictest33-21ksoftirqd/211:00:002
11455993732,3cyclictest33-21ksoftirqd/209:45:002
11455993732,3cyclictest33-21ksoftirqd/208:20:002
11455993731,4cyclictest33-21ksoftirqd/210:20:002
11454993731,4cyclictest25-21ksoftirqd/107:36:531
134991360,1getstats23113-1kworker/3:1H11:17:253
11456993631,3cyclictest41-21ksoftirqd/307:45:193
11456993630,4cyclictest41-21ksoftirqd/312:37:073
11456993630,4cyclictest41-21ksoftirqd/312:10:443
11456993630,4cyclictest41-21ksoftirqd/309:12:313
11456993630,4cyclictest41-21ksoftirqd/308:21:483
11455993632,3cyclictest33-21ksoftirqd/212:40:012
11455993631,3cyclictest33-21ksoftirqd/209:15:012
11455993630,4cyclictest33-21ksoftirqd/212:08:382
11455993630,4cyclictest33-21ksoftirqd/211:13:022
11455993630,4cyclictest33-21ksoftirqd/211:02:062
11455993630,4cyclictest33-21ksoftirqd/208:12:082
11455993630,4cyclictest33-21ksoftirqd/208:09:372
11455993630,4cyclictest33-21ksoftirqd/207:53:312
11454993630,4cyclictest25-21ksoftirqd/112:16:271
11454993630,4cyclictest25-21ksoftirqd/110:03:121
11454993630,4cyclictest25-21ksoftirqd/108:25:101
11454993630,4cyclictest25-21ksoftirqd/108:25:101
11453993631,3cyclictest13826-21cron11:35:000
11453993630,4cyclictest9-21ksoftirqd/009:53:560
11456993530,3cyclictest41-21ksoftirqd/311:23:163
11456993530,3cyclictest41-21ksoftirqd/308:26:193
11456993530,3cyclictest41-21ksoftirqd/308:26:183
11456993529,4cyclictest41-21ksoftirqd/310:33:243
11456993529,4cyclictest41-21ksoftirqd/308:52:373
11456993529,4cyclictest41-21ksoftirqd/307:32:273
11455993531,3cyclictest33-21ksoftirqd/210:40:002
11455993530,3cyclictest33-21ksoftirqd/211:10:002
11455993530,3cyclictest33-21ksoftirqd/209:27:532
11455993529,4cyclictest33-21ksoftirqd/208:27:462
11455993529,4cyclictest33-21ksoftirqd/208:27:452
11455993528,5cyclictest33-21ksoftirqd/208:42:222
11454993530,3cyclictest25-21ksoftirqd/109:46:591
11454993530,3cyclictest25-21ksoftirqd/109:14:381
11454993529,4cyclictest25-21ksoftirqd/112:34:491
11454993529,4cyclictest25-21ksoftirqd/111:06:161
11454993529,4cyclictest25-21ksoftirqd/109:59:511
11454993528,5cyclictest25-21ksoftirqd/107:58:571
11453993529,4cyclictest9-21ksoftirqd/011:08:580
11453993529,4cyclictest9-21ksoftirqd/007:53:530
11453993529,4cyclictest9-21ksoftirqd/007:34:390
11453993529,4cyclictest9-21ksoftirqd/007:25:450
11456993430,2cyclictest41-21ksoftirqd/311:45:003
11456993429,3cyclictest41-21ksoftirqd/312:05:193
11456993429,3cyclictest41-21ksoftirqd/310:20:123
11456993429,3cyclictest41-21ksoftirqd/310:15:013
11456993429,3cyclictest41-21ksoftirqd/307:20:113
11456993428,4cyclictest41-21ksoftirqd/310:00:533
11456993428,4cyclictest41-21ksoftirqd/309:19:533
11456993427,5cyclictest41-21ksoftirqd/308:02:373
11455993430,3cyclictest33-21ksoftirqd/212:00:332
11455993429,3cyclictest33-21ksoftirqd/211:43:192
11455993429,3cyclictest33-21ksoftirqd/210:20:122
11455993429,3cyclictest33-21ksoftirqd/208:00:002
11455993428,4cyclictest33-21ksoftirqd/212:17:582
11455993428,4cyclictest33-21ksoftirqd/209:31:372
11455993428,4cyclictest33-21ksoftirqd/209:31:372
11455993428,4cyclictest33-21ksoftirqd/209:09:302
11455993428,4cyclictest33-21ksoftirqd/207:40:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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