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2026-09-11 - 22:53
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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 Fri Sep 11, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591205168,25phc2sys0-21swapper/307:09:003
237732202169,22sleep10-21swapper/107:06:431
237222200167,22sleep20-21swapper/207:06:042
237772199166,22sleep00-21swapper/007:06:460
1825721640,6sleep12432999cyclictest10:10:281
138491820,1ptp4l10822-21grep12:05:263
24328996030,6cyclictest9-21ksoftirqd/010:10:190
24328996029,5cyclictest9-21ksoftirqd/010:45:120
24328995926,6cyclictest9-21ksoftirqd/010:50:140
24328995923,6cyclictest9-21ksoftirqd/008:50:180
24328995923,5cyclictest9-21ksoftirqd/007:55:220
24328995922,3cyclictest9-21ksoftirqd/008:00:240
24328995920,4cyclictest9-21ksoftirqd/007:20:220
24328995827,5cyclictest9-21ksoftirqd/007:45:140
24328995824,6cyclictest9-21ksoftirqd/011:55:140
24328995824,6cyclictest9-21ksoftirqd/011:55:130
24328995821,4cyclictest9-21ksoftirqd/008:10:010
134991580,6getstats2433199cyclictest12:29:463
2432899565,9cyclictest9-21ksoftirqd/007:15:000
24328995521,5cyclictest9-21ksoftirqd/009:20:130
24328995521,4cyclictest9-21ksoftirqd/010:05:210
24328995420,3cyclictest9-21ksoftirqd/011:31:120
24328995420,3cyclictest9-21ksoftirqd/008:29:370
2432899536,6cyclictest9-21ksoftirqd/009:55:120
2432899533,9cyclictest9-21ksoftirqd/012:25:230
24328995325,7cyclictest9-21ksoftirqd/010:25:010
24328995324,5cyclictest9-21ksoftirqd/009:45:150
24328995324,5cyclictest9-21ksoftirqd/007:40:130
24328995323,6cyclictest9-21ksoftirqd/009:25:180
24328995323,5cyclictest9-21ksoftirqd/010:35:160
24328995321,5cyclictest9-21ksoftirqd/009:35:140
24328995222,4cyclictest9-21ksoftirqd/011:50:260
24328995221,6cyclictest9-21ksoftirqd/012:05:110
2432899521,6cyclictest9-21ksoftirqd/011:10:170
216722520,1sleep10-21swapper/108:10:011
2432899515,6cyclictest9-21ksoftirqd/012:10:300
2432899515,6cyclictest9-21ksoftirqd/007:50:250
2432899514,4cyclictest9-21ksoftirqd/009:20:010
24328995124,4cyclictest9-21ksoftirqd/012:20:130
24328995117,6cyclictest9-21ksoftirqd/009:01:330
138491510,1ptp4l391rcuc/308:44:173
321132500,2sleep30-21swapper/307:25:143
2432899506,6cyclictest9-21ksoftirqd/012:35:240
2432899506,6cyclictest9-21ksoftirqd/008:40:250
2432899506,4cyclictest9-21ksoftirqd/008:15:180
2432899505,6cyclictest9-21ksoftirqd/011:15:250
2432899504,8cyclictest9-21ksoftirqd/008:35:000
2432899504,7cyclictest9-21ksoftirqd/008:20:260
2432899503,5cyclictest9-21ksoftirqd/010:15:170
2432899502,9cyclictest9-21ksoftirqd/012:00:180
2432899496,5cyclictest9-21ksoftirqd/009:55:010
2432899495,8cyclictest9-21ksoftirqd/011:09:590
2432899495,7cyclictest9-21ksoftirqd/008:05:260
2432899495,10cyclictest9-21ksoftirqd/009:05:250
2432899494,6cyclictest9-21ksoftirqd/008:55:160
2432899494,5cyclictest9-21ksoftirqd/010:30:270
2432899494,4cyclictest9-21ksoftirqd/011:00:260
2432899494,4cyclictest9-21ksoftirqd/009:45:000
2432899493,6cyclictest9-21ksoftirqd/008:45:200
24328994917,5cyclictest9-21ksoftirqd/011:20:250
24328994917,5cyclictest9-21ksoftirqd/009:30:200
2432899485,5cyclictest9-21ksoftirqd/012:30:240
2432899484,7cyclictest9-21ksoftirqd/007:25:190
2432899483,5cyclictest9-21ksoftirqd/010:04:590
2432899483,4cyclictest9-21ksoftirqd/009:14:590
2432899483,4cyclictest9-21ksoftirqd/009:14:590
2432899482,6cyclictest9-21ksoftirqd/010:55:150
224002480,3sleep10-21swapper/111:25:181
2432899475,9cyclictest9-21ksoftirqd/008:35:210
2432899475,6cyclictest9-21ksoftirqd/012:20:000
2432899475,6cyclictest9-21ksoftirqd/010:40:150
2432899474,5cyclictest9-21ksoftirqd/010:25:150
24328994743,2cyclictest101ktimersoftd/011:40:000
2432899473,5cyclictest9-21ksoftirqd/011:25:140
2432899471,8cyclictest0-21swapper/007:15:160
2432899470,6cyclictest9-21ksoftirqd/011:45:240
2432899462,5cyclictest9-21ksoftirqd/007:30:130
2432899462,5cyclictest9-21ksoftirqd/007:30:130
2432899453,5cyclictest9-21ksoftirqd/011:44:590
2432899453,5cyclictest9-21ksoftirqd/007:35:220
138491450,0ptp4l401ktimersoftd/308:50:173
24330994214,26cyclictest0-21swapper/208:35:122
138491420,0ptp4l401ktimersoftd/309:54:153
24330994136,2cyclictest33-21ksoftirqd/212:30:002
24330994130,9cyclictest33-21ksoftirqd/209:10:212
24330994130,9cyclictest33-21ksoftirqd/209:10:212
2433099411,37cyclictest1322-21cron10:44:592
138491410,1ptp4l401ktimersoftd/308:25:143
138491410,0ptp4l401ktimersoftd/308:57:583
24330994011,27cyclictest0-21swapper/209:01:532
24329994036,2cyclictest25-21ksoftirqd/107:40:001
24329994035,3cyclictest25-21ksoftirqd/112:20:011
24329993933,3cyclictest4127-21cron07:35:001
24329993933,3cyclictest4127-21cron07:35:001
24330993832,3cyclictest33-21ksoftirqd/209:20:012
24329993833,3cyclictest25-21ksoftirqd/110:00:011
50798370,2rtkit-daemon506-21rtkit-daemon12:29:561
24331993731,4cyclictest41-21ksoftirqd/307:50:413
138491370,0ptp4l401ktimersoftd/310:20:193
24331993631,3cyclictest8982-21cron08:50:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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