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2026-07-03 - 01:08
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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 Thu Jul 02, 2026 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1781421330,3sleep2943699cyclictest09:45:242
145382730,5sleep10-21swapper/109:40:141
251212720,4sleep3401ktimersoftd/310:00:253
134491660,4ptp4l0-21swapper/109:53:381
134491650,3ptp4l0-21swapper/011:00:010
9435996435,4cyclictest25-21ksoftirqd/109:20:231
134491640,24ptp4l10724-21irqrtprio10:40:192
9435996328,4cyclictest25-21ksoftirqd/112:20:221
134491630,4ptp4l0-21swapper/311:05:013
9437996125,4cyclictest41-21ksoftirqd/308:17:263
9435996133,7cyclictest25-21ksoftirqd/109:10:001
9435996128,9cyclictest25-21ksoftirqd/112:00:141
9435996126,7cyclictest25-21ksoftirqd/111:59:591
9437996029,4cyclictest41-21ksoftirqd/310:12:403
9435996030,6cyclictest25-21ksoftirqd/111:35:291
9435996024,7cyclictest25-21ksoftirqd/110:00:001
9435995929,3cyclictest25-21ksoftirqd/111:25:011
9435995927,3cyclictest25-21ksoftirqd/109:50:011
9435995920,7cyclictest25-21ksoftirqd/107:15:161
9437995827,4cyclictest41-21ksoftirqd/312:23:183
9435995827,7cyclictest25-21ksoftirqd/107:15:001
134491580,4ptp4l0-21swapper/108:03:581
134491580,4ptp4l0-21swapper/108:03:581
134491580,3ptp4l0-21swapper/110:55:231
134491580,12ptp4l8769-21users07:05:261
9437995727,4cyclictest41-21ksoftirqd/307:35:143
9437995724,4cyclictest41-21ksoftirqd/308:28:493
9435995729,7cyclictest25-21ksoftirqd/109:25:261
9435995728,4cyclictest25-21ksoftirqd/110:53:291
9435995728,4cyclictest25-21ksoftirqd/110:53:291
9435995727,6cyclictest25-21ksoftirqd/111:10:221
9435995726,4cyclictest25-21ksoftirqd/110:30:001
9435995724,6cyclictest25-21ksoftirqd/111:05:161
9435995724,3cyclictest25-21ksoftirqd/108:33:541
134491570,3ptp4l0-21swapper/210:25:232
9435995629,3cyclictest25-21ksoftirqd/112:18:161
9435995627,7cyclictest25-21ksoftirqd/108:15:281
9435995627,3cyclictest25-21ksoftirqd/112:28:421
9435995623,6cyclictest25-21ksoftirqd/112:35:191
134491560,4ptp4l0-21swapper/212:01:322
9437995523,4cyclictest41-21ksoftirqd/309:03:163
9437995523,4cyclictest41-21ksoftirqd/309:03:163
9437995522,8cyclictest41-21ksoftirqd/307:32:533
9437995522,4cyclictest41-21ksoftirqd/308:03:263
9437995522,4cyclictest41-21ksoftirqd/308:03:263
9437995520,7cyclictest41-21ksoftirqd/311:16:133
9437995520,4cyclictest41-21ksoftirqd/312:03:003
9437995520,4cyclictest41-21ksoftirqd/308:51:013
943599556,4cyclictest25-21ksoftirqd/111:55:001
9435995527,7cyclictest25-21ksoftirqd/108:13:511
9435995521,8cyclictest25-21ksoftirqd/107:50:191
9435995521,7cyclictest25-21ksoftirqd/111:05:001
9435995521,7cyclictest25-21ksoftirqd/109:00:261
9435995521,7cyclictest25-21ksoftirqd/109:00:261
9435995521,4cyclictest25-21ksoftirqd/108:05:121
9435995517,4cyclictest25-21ksoftirqd/110:15:161
134491550,3ptp4l0-21swapper/308:40:263
134491550,3ptp4l0-21swapper/010:40:010
9437995425,7cyclictest41-21ksoftirqd/310:34:123
9437995423,3cyclictest41-21ksoftirqd/310:50:233
9437995423,3cyclictest41-21ksoftirqd/310:50:233
9435995430,7cyclictest25-21ksoftirqd/110:40:221
9435995430,3cyclictest25-21ksoftirqd/108:28:041
9435995422,3cyclictest25-21ksoftirqd/107:35:141
9435995421,7cyclictest25-21ksoftirqd/109:00:001
9435995421,6cyclictest25-21ksoftirqd/110:35:191
9435995420,6cyclictest25-21ksoftirqd/111:40:261
9435995419,8cyclictest25-21ksoftirqd/111:45:181
134491540,3ptp4l0-21swapper/212:07:112
9437995323,5cyclictest41-21ksoftirqd/309:42:593
9437995322,5cyclictest41-21ksoftirqd/310:19:503
9437995322,4cyclictest41-21ksoftirqd/311:47:163
9435995326,3cyclictest25-21ksoftirqd/111:18:461
9435995324,6cyclictest25-21ksoftirqd/110:45:011
9435995324,3cyclictest25-21ksoftirqd/109:34:311
9435995322,9cyclictest25-21ksoftirqd/107:45:191
9435995320,4cyclictest25-21ksoftirqd/109:15:531
9435995320,3cyclictest25-21ksoftirqd/112:30:231
9435995318,7cyclictest25-21ksoftirqd/110:03:021
134491530,12ptp4l0-21swapper/011:58:340
9437995229,5cyclictest41-21ksoftirqd/307:21:463
9437995222,3cyclictest41-21ksoftirqd/311:36:043
9435995226,6cyclictest25-21ksoftirqd/109:10:131
9435995226,3cyclictest25-21ksoftirqd/108:48:071
9435995220,4cyclictest25-21ksoftirqd/112:10:161
9435995219,7cyclictest25-21ksoftirqd/111:30:191
9435995217,7cyclictest25-21ksoftirqd/110:25:001
9435995215,4cyclictest25-21ksoftirqd/110:05:261
134491520,4ptp4l0-21swapper/212:30:162
9437995122,8cyclictest41-21ksoftirqd/310:25:233
9437995121,3cyclictest41-21ksoftirqd/311:55:263
9437995120,6cyclictest41-21ksoftirqd/309:10:223
9437995119,8cyclictest41-21ksoftirqd/312:10:223
9435995119,7cyclictest25-21ksoftirqd/108:35:141
9435995118,6cyclictest25-21ksoftirqd/107:40:151
9435995118,4cyclictest25-21ksoftirqd/110:10:161
134491510,4ptp4l0-21swapper/211:43:512
134491510,4ptp4l0-21swapper/211:15:492
134491510,4ptp4l0-21swapper/209:42:102
943799502,4cyclictest0-21swapper/308:58:473
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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