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2026-07-09 - 22:47
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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 Thu Jul 09, 2026 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38602226165,50sleep20-21swapper/207:07:192
38592204171,22sleep10-21swapper/107:07:191
138591204170,23phc2sys0-21swapper/307:05:073
37982199165,22sleep00-21swapper/007:06:280
138491690,1ptp4l401ktimersoftd/308:15:043
138491660,1ptp4l401ktimersoftd/309:51:433
138491620,1ptp4l401ktimersoftd/309:24:063
74432580,3sleep00-21swapper/011:35:200
123702580,7sleep3436999cyclictest07:25:133
436899573,6cyclictest26532-21sed08:59:592
138491570,1ptp4l401ktimersoftd/309:55:153
138491570,1ptp4l401ktimersoftd/309:46:103
4368995628,4cyclictest33-21ksoftirqd/208:50:152
4368995529,10cyclictest33-21ksoftirqd/211:15:192
138491550,1ptp4l401ktimersoftd/310:51:033
138491550,1ptp4l401ktimersoftd/308:30:233
169482540,3sleep30-21swapper/307:35:113
4368995327,9cyclictest33-21ksoftirqd/207:30:262
436899523,6cyclictest321ktimersoftd/209:09:592
158832510,2sleep20-21swapper/208:35:242
436899483,5cyclictest33-21ksoftirqd/211:00:112
4368994724,8cyclictest33-21ksoftirqd/212:40:002
436899471,7cyclictest33-21ksoftirqd/210:00:232
436899465,5cyclictest33-21ksoftirqd/209:35:202
4368994619,3cyclictest33-21ksoftirqd/209:20:232
436899457,4cyclictest33-21ksoftirqd/207:22:342
436899455,7cyclictest33-21ksoftirqd/208:45:282
436899444,5cyclictest33-21ksoftirqd/210:15:292
436899442,5cyclictest33-21ksoftirqd/210:30:172
436899440,5cyclictest321ktimersoftd/209:10:132
436899433,5cyclictest33-21ksoftirqd/209:40:122
436899432,5cyclictest33-21ksoftirqd/207:15:242
436899431,6cyclictest33-21ksoftirqd/208:15:252
4369994227,12cyclictest41-21ksoftirqd/311:45:003
436899425,6cyclictest33-21ksoftirqd/209:00:142
436899424,7cyclictest33-21ksoftirqd/209:48:282
138491420,0ptp4l401ktimersoftd/307:14:153
436899412,5cyclictest33-21ksoftirqd/209:55:222
436899411,5cyclictest0-21swapper/211:34:412
436899405,6cyclictest33-21ksoftirqd/211:05:212
436899404,4cyclictest33-21ksoftirqd/210:07:572
436899402,5cyclictest33-21ksoftirqd/208:00:182
4368994014,8cyclictest33-21ksoftirqd/209:33:382
4368994014,8cyclictest33-21ksoftirqd/209:33:382
4366994035,3cyclictest9-21ksoftirqd/010:50:000
4366994034,3cyclictest9-21ksoftirqd/011:00:130
138491400,1ptp4l401ktimersoftd/312:31:033
4369993934,3cyclictest41-21ksoftirqd/310:50:013
4369993932,4cyclictest41-21ksoftirqd/308:02:313
436899394,6cyclictest33-21ksoftirqd/211:40:262
4368993935,2cyclictest311rcuc/211:25:262
436899392,5cyclictest33-21ksoftirqd/211:45:372
4368993922,10cyclictest33-21ksoftirqd/207:45:122
4368993922,10cyclictest33-21ksoftirqd/207:45:122
436899391,6cyclictest33-21ksoftirqd/207:57:372
4368993913,3cyclictest33-21ksoftirqd/207:25:442
4366993935,2cyclictest9-21ksoftirqd/010:20:010
4366993935,2cyclictest9-21ksoftirqd/009:19:590
4366993934,2cyclictest9-21ksoftirqd/012:40:010
436899384,3cyclictest33-21ksoftirqd/210:20:292
436899383,8cyclictest33-21ksoftirqd/208:20:172
4368993833,3cyclictest33-21ksoftirqd/211:40:012
4368993831,4cyclictest33-21ksoftirqd/212:10:112
436899382,5cyclictest33-21ksoftirqd/211:55:112
4368993813,8cyclictest33-21ksoftirqd/210:39:362
4369993732,3cyclictest41-21ksoftirqd/309:25:183
4369993732,2cyclictest41-21ksoftirqd/311:20:173
4369993731,3cyclictest41-21ksoftirqd/312:20:003
4369993730,4cyclictest41-21ksoftirqd/311:11:393
436899376,7cyclictest33-21ksoftirqd/208:05:182
436899376,7cyclictest14757-21ps10:45:192
436899376,6cyclictest33-21ksoftirqd/210:59:142
436899374,4cyclictest33-21ksoftirqd/207:40:002
436899373,6cyclictest33-21ksoftirqd/212:16:132
4368993734,2cyclictest311rcuc/210:25:262
436899373,2cyclictest33-21ksoftirqd/209:51:572
4368993730,4cyclictest33-21ksoftirqd/210:10:362
436899372,5cyclictest33-21ksoftirqd/212:05:232
4368993717,7cyclictest33-21ksoftirqd/211:13:402
436899371,33cyclictest19875-21fschecks_count07:40:162
4367993731,4cyclictest25-21ksoftirqd/111:07:031
4366993732,3cyclictest9-21ksoftirqd/008:55:010
4366993732,3cyclictest9-21ksoftirqd/007:35:000
4366993732,3cyclictest9-21ksoftirqd/007:14:590
4366993731,3cyclictest9-21ksoftirqd/012:35:010
50798360,1rtkit-daemon0-21swapper/011:22:340
4369993631,3cyclictest41-21ksoftirqd/311:54:593
4369993631,3cyclictest41-21ksoftirqd/309:15:003
4369993631,3cyclictest41-21ksoftirqd/307:45:003
4369993630,4cyclictest41-21ksoftirqd/310:36:423
4369993630,4cyclictest41-21ksoftirqd/309:36:073
4369993630,3cyclictest41-21ksoftirqd/308:45:003
436899364,8cyclictest33-21ksoftirqd/210:52:102
436899364,7cyclictest33-21ksoftirqd/212:00:122
436899363,5cyclictest33-21ksoftirqd/212:27:382
436899362,5cyclictest33-21ksoftirqd/211:22:242
4367993631,3cyclictest25-21ksoftirqd/109:19:531
4367993630,4cyclictest25-21ksoftirqd/111:47:271
4367993630,4cyclictest25-21ksoftirqd/110:59:371
4367993630,4cyclictest25-21ksoftirqd/107:50:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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