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2026-08-25 - 20:54
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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 Tue Aug 25, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491242197,34phc2sys0-21swapper/307:08:593
195382205173,22sleep10-21swapper/107:05:541
197802203171,22sleep20-21swapper/207:08:562
195942201168,22sleep00-21swapper/007:06:370
1937121410,4sleep32016099cyclictest09:20:273
1129321380,2sleep12015899cyclictest11:20:191
2015899780,76cyclictest0-21swapper/108:35:331
2015899740,72cyclictest0-21swapper/109:57:531
2015899719,60cyclictest0-21swapper/112:36:131
2015899718,61cyclictest0-21swapper/108:57:531
2015899707,61cyclictest0-21swapper/107:45:531
111542630,3sleep0111rcuc/010:10:260
20159995727,3cyclictest33-21ksoftirqd/207:35:132
221132560,2sleep20-21swapper/208:20:162
20159995626,7cyclictest33-21ksoftirqd/210:05:002
20159995624,4cyclictest33-21ksoftirqd/208:15:252
20159995624,3cyclictest33-21ksoftirqd/210:10:212
20159995420,6cyclictest33-21ksoftirqd/211:50:012
139391540,47ptp4l0-21swapper/307:10:013
20159995327,3cyclictest33-21ksoftirqd/208:45:012
20159995325,4cyclictest33-21ksoftirqd/210:25:152
20159995324,3cyclictest33-21ksoftirqd/211:15:012
20159995320,4cyclictest33-21ksoftirqd/209:20:192
20159995319,4cyclictest33-21ksoftirqd/211:15:142
20158995214,36cyclictest0-21swapper/111:56:121
139391520,0ptp4l401ktimersoftd/309:30:543
20159995119,4cyclictest33-21ksoftirqd/212:09:592
20159995118,9cyclictest33-21ksoftirqd/209:35:002
20159995112,7cyclictest33-21ksoftirqd/209:10:222
20159995024,4cyclictest33-21ksoftirqd/212:35:212
20159995023,6cyclictest33-21ksoftirqd/208:55:002
20159995023,3cyclictest33-21ksoftirqd/210:55:262
20159995019,4cyclictest33-21ksoftirqd/210:35:002
20159994944,3cyclictest23680-21ls10:40:002
2015999494,3cyclictest33-21ksoftirqd/212:25:002
2015999494,3cyclictest33-21ksoftirqd/212:25:002
20159994921,4cyclictest33-21ksoftirqd/212:10:272
20159994920,5cyclictest33-21ksoftirqd/208:30:002
20159994920,3cyclictest33-21ksoftirqd/212:25:012
20159994916,6cyclictest33-21ksoftirqd/210:15:212
20159994914,6cyclictest33-21ksoftirqd/209:55:222
20159994913,5cyclictest33-21ksoftirqd/208:30:292
20159994911,6cyclictest33-21ksoftirqd/211:35:262
139391490,0ptp4l401ktimersoftd/311:35:153
115982480,4sleep011549-21apt-get08:00:000
20159994722,6cyclictest33-21ksoftirqd/207:55:002
20159994719,3cyclictest33-21ksoftirqd/209:25:302
20159994617,4cyclictest33-21ksoftirqd/211:05:192
20159994616,4cyclictest33-21ksoftirqd/209:35:132
20159994615,9cyclictest33-21ksoftirqd/207:25:182
20159994615,6cyclictest33-21ksoftirqd/208:05:252
20159994614,3cyclictest33-21ksoftirqd/208:42:152
20159994612,5cyclictest33-21ksoftirqd/207:20:192
20159994611,8cyclictest33-21ksoftirqd/209:20:012
20159994521,6cyclictest33-21ksoftirqd/210:10:002
20159994520,6cyclictest33-21ksoftirqd/207:20:002
2015999451,6cyclictest33-21ksoftirqd/211:25:222
20159994510,4cyclictest33-21ksoftirqd/208:55:142
2015899450,43cyclictest0-21swapper/111:32:521
2015999447,7cyclictest33-21ksoftirqd/207:45:162
2015999446,3cyclictest33-21ksoftirqd/210:20:242
20159994420,3cyclictest33-21ksoftirqd/207:35:002
2015999441,2cyclictest33-21ksoftirqd/209:05:282
20159994412,4cyclictest33-21ksoftirqd/209:50:172
139391440,0ptp4l401ktimersoftd/312:20:213
139391440,0ptp4l401ktimersoftd/312:20:213
20159994333,4cyclictest33-21ksoftirqd/209:50:012
2015999432,3cyclictest33-21ksoftirqd/211:30:252
20159994322,18cyclictest33-21ksoftirqd/208:00:002
20159994310,6cyclictest33-21ksoftirqd/208:10:132
20159994310,5cyclictest33-21ksoftirqd/212:35:002
2015999428,5cyclictest33-21ksoftirqd/209:00:232
2015999424,3cyclictest33-21ksoftirqd/211:00:152
2015999424,3cyclictest33-21ksoftirqd/210:45:262
2015999424,3cyclictest121rcu_preempt11:25:012
2015999422,2cyclictest121rcu_preempt12:20:002
20159994212,5cyclictest33-21ksoftirqd/211:55:142
20159994210,6cyclictest33-21ksoftirqd/210:40:262
139391410,0ptp4l401ktimersoftd/310:45:253
2015999405,2cyclictest121rcu_preempt07:40:152
20159994025,12cyclictest33-21ksoftirqd/209:45:002
20159993929,3cyclictest33-21ksoftirqd/208:35:262
2015999392,2cyclictest121rcu_preempt11:40:142
20159993831,4cyclictest33-21ksoftirqd/210:53:572
20159993827,9cyclictest33-21ksoftirqd/208:02:082
20159993825,11cyclictest33-21ksoftirqd/207:10:282
20158993832,4cyclictest25-21ksoftirqd/108:28:371
20158993831,4cyclictest25-21ksoftirqd/112:08:301
20157993832,4cyclictest27928-21grep07:25:150
139391380,0ptp4l401ktimersoftd/308:00:023
139391380,0ptp4l401ktimersoftd/307:50:293
20159993733,2cyclictest33-21ksoftirqd/212:00:142
20159993732,3cyclictest33-21ksoftirqd/211:50:282
20158993731,4cyclictest25-21ksoftirqd/109:07:531
20158993730,5cyclictest25-21ksoftirqd/109:47:281
139391370,0ptp4l401ktimersoftd/310:05:153
20160993630,4cyclictest41-21ksoftirqd/311:40:313
20157993630,4cyclictest9-21ksoftirqd/009:57:590
20157993619,3cyclictest9-21ksoftirqd/007:15:150
20160993529,4cyclictest41-21ksoftirqd/311:08:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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