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2026-07-07 - 15:31
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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 Tue Jul 07, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
286642231167,21sleep10-21swapper/107:09:131
285532205172,21sleep20-21swapper/207:07:532
138591201167,23phc2sys0-21swapper/307:06:583
285062199165,23sleep00-21swapper/007:07:140
138491710,0ptp4l391rcuc/312:15:233
29018996233,4cyclictest33-21ksoftirqd/208:20:152
29018996133,3cyclictest33-21ksoftirqd/211:10:132
29018996131,3cyclictest33-21ksoftirqd/211:20:162
29018996130,3cyclictest33-21ksoftirqd/209:01:162
29019996028,7cyclictest41-21ksoftirqd/308:25:003
29019996027,4cyclictest41-21ksoftirqd/310:20:143
29018996032,3cyclictest33-21ksoftirqd/210:10:142
29018996032,3cyclictest33-21ksoftirqd/209:10:142
29018996032,3cyclictest33-21ksoftirqd/207:10:142
29018996031,4cyclictest33-21ksoftirqd/208:35:122
29018996030,4cyclictest33-21ksoftirqd/207:15:252
29018996030,3cyclictest33-21ksoftirqd/210:30:232
29018996029,4cyclictest33-21ksoftirqd/207:55:002
29018996028,4cyclictest33-21ksoftirqd/210:50:142
29018995927,7cyclictest33-21ksoftirqd/207:25:182
34572580,1sleep20-21swapper/211:40:242
29018995830,3cyclictest33-21ksoftirqd/212:40:012
29018995828,3cyclictest33-21ksoftirqd/210:25:262
29018995826,4cyclictest33-21ksoftirqd/210:40:122
29018995824,4cyclictest33-21ksoftirqd/208:35:002
29018995817,5cyclictest33-21ksoftirqd/208:45:282
29019995724,4cyclictest41-21ksoftirqd/308:45:243
29018995731,3cyclictest33-21ksoftirqd/207:35:272
29018995729,3cyclictest33-21ksoftirqd/207:40:242
29018995727,3cyclictest33-21ksoftirqd/212:25:142
29018995727,3cyclictest33-21ksoftirqd/212:20:142
29018995727,3cyclictest33-21ksoftirqd/212:20:142
29018995726,3cyclictest33-21ksoftirqd/207:25:012
29019995626,3cyclictest41-21ksoftirqd/309:05:003
29018995628,3cyclictest33-21ksoftirqd/210:00:152
29018995627,4cyclictest33-21ksoftirqd/209:30:132
29018995627,4cyclictest33-21ksoftirqd/209:30:132
29018995623,8cyclictest33-21ksoftirqd/208:05:002
152222560,4sleep30-21swapper/308:50:243
29019995527,3cyclictest41-21ksoftirqd/307:26:113
29019995525,4cyclictest41-21ksoftirqd/312:23:353
29019995525,4cyclictest41-21ksoftirqd/312:23:353
29019995525,3cyclictest41-21ksoftirqd/311:40:123
29019995522,4cyclictest41-21ksoftirqd/309:05:243
29018995525,4cyclictest33-21ksoftirqd/212:00:142
29018995522,3cyclictest33-21ksoftirqd/208:15:142
29019995424,3cyclictest41-21ksoftirqd/307:24:083
29019995423,3cyclictest41-21ksoftirqd/310:25:213
29019995422,3cyclictest41-21ksoftirqd/311:35:003
29019995422,3cyclictest41-21ksoftirqd/311:35:003
29018995427,3cyclictest33-21ksoftirqd/209:55:162
29018995426,3cyclictest33-21ksoftirqd/208:25:162
29018995422,3cyclictest33-21ksoftirqd/212:05:242
29019995324,4cyclictest41-21ksoftirqd/308:00:273
29019995322,4cyclictest41-21ksoftirqd/309:10:183
29019995321,4cyclictest41-21ksoftirqd/312:00:253
29018995327,3cyclictest33-21ksoftirqd/210:45:142
29018995326,3cyclictest33-21ksoftirqd/210:55:172
29018995325,3cyclictest33-21ksoftirqd/210:15:212
29018995322,3cyclictest33-21ksoftirqd/211:30:282
29018995322,3cyclictest33-21ksoftirqd/211:30:272
29018995315,5cyclictest33-21ksoftirqd/211:35:252
29019995227,4cyclictest41-21ksoftirqd/308:55:203
29019995225,3cyclictest41-21ksoftirqd/312:30:163
29019995222,3cyclictest41-21ksoftirqd/311:37:303
29019995222,3cyclictest41-21ksoftirqd/310:35:133
29019995222,3cyclictest41-21ksoftirqd/307:35:273
29019995221,4cyclictest41-21ksoftirqd/312:05:143
29018995235,4cyclictest33-21ksoftirqd/209:30:002
29018995224,3cyclictest33-21ksoftirqd/211:55:142
29018995223,3cyclictest33-21ksoftirqd/212:30:192
29018995223,3cyclictest33-21ksoftirqd/211:50:282
29018995222,3cyclictest33-21ksoftirqd/211:15:192
29019995121,3cyclictest41-21ksoftirqd/311:15:273
29019995118,4cyclictest41-21ksoftirqd/310:55:153
29018995124,3cyclictest33-21ksoftirqd/208:50:242
29018995122,4cyclictest33-21ksoftirqd/208:44:282
29018995122,4cyclictest33-21ksoftirqd/207:59:222
29018995119,5cyclictest33-21ksoftirqd/207:45:172
171582510,2sleep20-21swapper/212:10:132
29019995022,3cyclictest41-21ksoftirqd/311:20:253
29019995020,4cyclictest41-21ksoftirqd/309:55:253
29019995020,3cyclictest41-21ksoftirqd/307:45:233
29019995016,3cyclictest41-21ksoftirqd/312:10:233
29018995020,4cyclictest33-21ksoftirqd/212:15:152
29018995019,3cyclictest33-21ksoftirqd/209:05:192
29018995018,4cyclictest33-21ksoftirqd/208:10:142
29018995016,3cyclictest33-21ksoftirqd/209:50:172
29019994933,4cyclictest41-21ksoftirqd/308:05:133
29019994921,3cyclictest41-21ksoftirqd/308:10:263
29019994918,3cyclictest41-21ksoftirqd/309:25:273
29019994918,3cyclictest41-21ksoftirqd/308:35:153
29018994920,3cyclictest33-21ksoftirqd/209:20:152
29018994916,4cyclictest33-21ksoftirqd/207:30:222
1385914935,7phc2sys0-21swapper/307:10:023
2901999489,4cyclictest41-21ksoftirqd/312:25:153
29019994819,3cyclictest41-21ksoftirqd/310:30:143
29019994818,3cyclictest41-21ksoftirqd/312:35:273
29019994816,4cyclictest41-21ksoftirqd/311:55:133
29018994834,3cyclictest33-21ksoftirqd/208:05:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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