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2026-05-01 - 02:57
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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 Apr 30, 2026 12:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491208173,23phc2sys0-21swapper/307:06:493
81542205170,23sleep20-21swapper/207:08:152
79292205172,22sleep00-21swapper/007:05:190
79252202169,22sleep10-21swapper/107:05:171
82982161124,12sleep30-21swapper/307:10:023
139391670,1ptp4l401ktimersoftd/307:19:153
8593996630,5cyclictest33-21ksoftirqd/210:08:562
139391660,1ptp4l401ktimersoftd/310:49:563
859299600,1cyclictest0-21swapper/107:46:531
8593995724,6cyclictest33-21ksoftirqd/210:57:122
139391570,1ptp4l401ktimersoftd/309:41:083
8593995620,4cyclictest33-21ksoftirqd/208:40:002
247672550,3sleep09-21ksoftirqd/011:05:130
8593995418,7cyclictest33-21ksoftirqd/208:25:212
8593995341,2cyclictest12175-21dump-pmu-power10:40:002
8593995322,4cyclictest33-21ksoftirqd/210:15:122
8593995318,5cyclictest33-21ksoftirqd/212:15:232
8593995224,3cyclictest33-21ksoftirqd/208:15:002
8593995114,9cyclictest33-21ksoftirqd/209:00:012
8593995023,4cyclictest33-21ksoftirqd/211:50:002
8593995022,3cyclictest33-21ksoftirqd/212:30:012
8593995021,7cyclictest33-21ksoftirqd/207:44:592
8593995018,7cyclictest33-21ksoftirqd/208:10:022
8593995016,4cyclictest33-21ksoftirqd/209:14:592
139391500,1ptp4l391rcuc/309:22:413
8593994818,5cyclictest33-21ksoftirqd/209:25:142
8593994816,4cyclictest33-21ksoftirqd/207:10:212
8593994719,4cyclictest33-21ksoftirqd/210:30:212
859299470,45cyclictest0-21swapper/112:21:031
139391470,0ptp4l401ktimersoftd/307:50:383
859399466,7cyclictest33-21ksoftirqd/207:25:162
8593994620,7cyclictest33-21ksoftirqd/207:15:182
8593994612,4cyclictest33-21ksoftirqd/207:35:142
8592994616,28cyclictest0-21swapper/110:09:431
139391460,1ptp4l401ktimersoftd/311:46:523
8594994539,4cyclictest11469-21ls11:45:003
859399455,2cyclictest33-21ksoftirqd/210:44:042
8593994520,7cyclictest33-21ksoftirqd/209:15:262
8593994515,3cyclictest33-21ksoftirqd/211:10:132
8593994511,4cyclictest33-21ksoftirqd/209:55:232
859399447,6cyclictest33-21ksoftirqd/208:20:162
8593994419,7cyclictest33-21ksoftirqd/211:25:152
8593994418,6cyclictest33-21ksoftirqd/211:40:202
8593994414,3cyclictest33-21ksoftirqd/210:50:172
8593994414,3cyclictest33-21ksoftirqd/210:50:172
8593994412,7cyclictest33-21ksoftirqd/209:05:262
8592994414,28cyclictest0-21swapper/107:40:231
859399437,7cyclictest33-21ksoftirqd/211:20:112
859399437,5cyclictest33-21ksoftirqd/211:30:172
8593994310,5cyclictest33-21ksoftirqd/207:30:232
859299430,41cyclictest0-21swapper/109:50:431
859399428,5cyclictest33-21ksoftirqd/209:20:222
859399427,4cyclictest33-21ksoftirqd/211:05:152
859399423,10cyclictest33-21ksoftirqd/207:20:172
8593994230,10cyclictest33-21ksoftirqd/211:15:232
8593994218,3cyclictest33-21ksoftirqd/211:50:142
8593994216,7cyclictest33-21ksoftirqd/208:40:172
8593994216,3cyclictest33-21ksoftirqd/209:02:012
139391420,0ptp4l401ktimersoftd/310:28:473
8593994114,4cyclictest33-21ksoftirqd/207:45:192
8593994112,3cyclictest33-21ksoftirqd/207:58:042
139391410,0ptp4l401ktimersoftd/310:05:083
859399408,5cyclictest33-21ksoftirqd/211:55:132
859399403,11cyclictest33-21ksoftirqd/209:50:122
859399401,7cyclictest33-21ksoftirqd/212:10:282
8592994018,21cyclictest0-21swapper/112:31:231
859299400,38cyclictest0-21swapper/110:22:241
859299400,38cyclictest0-21swapper/108:05:231
859399396,7cyclictest33-21ksoftirqd/209:35:002
859399394,4cyclictest33-21ksoftirqd/211:00:172
8593993924,12cyclictest33-21ksoftirqd/212:40:012
859399391,9cyclictest33-21ksoftirqd/208:00:232
8593993912,7cyclictest33-21ksoftirqd/212:05:252
8593993911,26cyclictest28749-21kworker/2:010:20:232
8593993910,9cyclictest33-21ksoftirqd/210:50:002
859299390,37cyclictest0-21swapper/108:57:231
8594993833,3cyclictest41-21ksoftirqd/308:36:273
859399389,9cyclictest33-21ksoftirqd/208:55:012
8593993833,3cyclictest33-21ksoftirqd/208:15:202
8593993833,2cyclictest33-21ksoftirqd/209:40:282
8593993811,3cyclictest33-21ksoftirqd/208:30:152
8592993817,20cyclictest0-21swapper/108:21:041
8591993833,3cyclictest29335-21ls11:15:000
8594993732,3cyclictest41-21ksoftirqd/312:35:013
8594993731,4cyclictest41-21ksoftirqd/308:03:513
8593993733,2cyclictest33-21ksoftirqd/210:30:002
8593993731,3cyclictest33-21ksoftirqd/211:40:012
8593993710,3cyclictest33-21ksoftirqd/212:20:172
8592993731,4cyclictest25-21ksoftirqd/112:13:011
139391370,1ptp4l401ktimersoftd/309:58:143
8594993630,4cyclictest41-21ksoftirqd/312:25:393
8594993630,4cyclictest41-21ksoftirqd/311:37:013
8594993630,4cyclictest41-21ksoftirqd/307:38:533
8593993632,2cyclictest33-21ksoftirqd/209:50:012
8593993632,2cyclictest33-21ksoftirqd/208:45:162
8593993630,3cyclictest33-21ksoftirqd/210:15:002
8593993625,3cyclictest33-21ksoftirqd/210:00:282
859399361,6cyclictest33-21ksoftirqd/207:50:152
859399360,2cyclictest121rcu_preempt09:35:232
8592993630,4cyclictest25-21ksoftirqd/111:51:071
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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