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2025-12-29 - 02:19
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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 Sun Dec 28, 2025 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491206172,22phc2sys0-21swapper/307:09:393
314792205171,23sleep00-21swapper/007:09:290
313272201168,22sleep20-21swapper/207:07:302
311842200167,22sleep10-21swapper/107:05:371
315322162123,14sleep00-21swapper/007:10:010
139391730,1ptp4l0-21swapper/307:56:473
139391730,1ptp4l0-21swapper/307:56:473
3182699640,25cyclictest5233-21cat08:30:002
3182699640,21cyclictest25429-21apt-get08:05:002
31824996460,2cyclictest111rcuc/010:05:230
3182699631,19cyclictest0-21swapper/209:30:212
31824996324,6cyclictest9-21ksoftirqd/009:05:170
31824996226,6cyclictest9-21ksoftirqd/008:50:130
31824996225,5cyclictest9-21ksoftirqd/008:20:240
31824996223,6cyclictest9-21ksoftirqd/011:15:240
3182699610,33cyclictest10187-21awk07:30:222
31824996128,7cyclictest9-21ksoftirqd/009:15:220
31824996123,7cyclictest9-21ksoftirqd/010:15:140
31824996123,5cyclictest9-21ksoftirqd/011:45:210
31824996123,5cyclictest9-21ksoftirqd/008:15:280
31824996123,5cyclictest9-21ksoftirqd/007:30:160
31824996122,5cyclictest9-21ksoftirqd/008:35:230
31824996029,4cyclictest9-21ksoftirqd/010:15:010
31824996027,6cyclictest9-21ksoftirqd/010:45:150
31824996024,9cyclictest9-21ksoftirqd/007:50:230
31824996023,8cyclictest9-21ksoftirqd/011:25:200
31824996023,6cyclictest9-21ksoftirqd/008:00:150
31824996023,5cyclictest9-21ksoftirqd/011:10:170
293342600,2sleep10-21swapper/110:25:171
31824995956,2cyclictest111rcuc/009:20:290
31824995928,6cyclictest9-21ksoftirqd/010:00:240
31824995925,7cyclictest9-21ksoftirqd/012:10:140
31824995922,5cyclictest9-21ksoftirqd/011:35:240
3182699581,24cyclictest24455-21apt-get09:10:112
3182699580,32cyclictest14917-21awk07:40:212
31824995827,8cyclictest9-21ksoftirqd/011:55:230
31824995827,7cyclictest9-21ksoftirqd/009:05:000
31824995827,6cyclictest9-21ksoftirqd/012:20:000
31824995826,6cyclictest9-21ksoftirqd/012:00:150
31824995825,7cyclictest9-21ksoftirqd/011:30:150
31824995825,6cyclictest9-21ksoftirqd/012:30:140
31824995732,7cyclictest9-21ksoftirqd/007:25:130
31824995726,7cyclictest9-21ksoftirqd/007:35:290
31824995725,5cyclictest9-21ksoftirqd/009:25:130
31824995724,6cyclictest9-21ksoftirqd/009:50:170
31824995627,6cyclictest9-21ksoftirqd/010:30:140
31824995625,9cyclictest9-21ksoftirqd/009:55:250
31824995623,6cyclictest9-21ksoftirqd/009:10:150
31824995622,5cyclictest9-21ksoftirqd/011:20:220
116492560,2sleep30-21swapper/310:55:243
116492560,2sleep30-21swapper/310:55:243
31824995526,6cyclictest9-21ksoftirqd/007:50:000
31824995525,4cyclictest9-21ksoftirqd/009:40:140
31824995525,4cyclictest9-21ksoftirqd/009:40:140
31824995523,7cyclictest9-21ksoftirqd/007:20:270
31824995523,10cyclictest9-21ksoftirqd/010:50:210
31824995522,6cyclictest9-21ksoftirqd/008:45:260
31824995427,7cyclictest9-21ksoftirqd/012:05:200
31824995423,5cyclictest9-21ksoftirqd/010:25:150
31824995419,6cyclictest9-21ksoftirqd/010:35:260
31824995418,4cyclictest9-21ksoftirqd/008:30:000
31824995325,8cyclictest9-21ksoftirqd/012:35:200
31824995324,8cyclictest9-21ksoftirqd/008:09:560
31824995323,3cyclictest9-21ksoftirqd/007:55:150
31824995323,3cyclictest9-21ksoftirqd/007:55:140
31824995322,6cyclictest9-21ksoftirqd/012:25:270
31824995320,5cyclictest9-21ksoftirqd/009:30:280
31824995319,5cyclictest9-21ksoftirqd/007:15:180
31824995318,5cyclictest9-21ksoftirqd/011:05:240
3182699520,21cyclictest8071-21ls09:40:252
3182699520,21cyclictest8071-21ls09:40:252
3182499525,5cyclictest9-21ksoftirqd/011:00:000
3182499525,5cyclictest9-21ksoftirqd/011:00:000
31824995224,6cyclictest9-21ksoftirqd/010:40:240
139391520,0ptp4l401ktimersoftd/309:07:553
3182699510,25cyclictest12788-21sensors07:35:272
31824995121,5cyclictest9-21ksoftirqd/012:23:130
31824995121,5cyclictest9-21ksoftirqd/009:35:140
31824995119,5cyclictest9-21ksoftirqd/008:10:280
3182499506,5cyclictest9-21ksoftirqd/008:55:250
44082490,4sleep14412-21cpuspeed_turbos07:20:201
3182499497,6cyclictest9-21ksoftirqd/008:30:180
31824994918,4cyclictest9-21ksoftirqd/011:05:000
101042490,3sleep00-21swapper/009:45:210
57898480,1rtkit-daemon0-21swapper/111:52:451
3182499485,3cyclictest9-21ksoftirqd/010:20:140
3182499484,3cyclictest9-21ksoftirqd/011:45:000
3182499481,6cyclictest9-21ksoftirqd/007:40:170
3182499474,4cyclictest9-21ksoftirqd/008:40:140
3182499472,5cyclictest9-21ksoftirqd/011:50:240
31827994629,14cyclictest41-21ksoftirqd/312:10:123
57898430,1rtkit-daemon0-21swapper/112:09:541
139391430,0ptp4l401ktimersoftd/311:29:343
139391430,0ptp4l401ktimersoftd/310:11:083
139391420,1ptp4l401ktimersoftd/312:32:233
139391420,0ptp4l401ktimersoftd/310:21:313
31827994135,4cyclictest6326-21sendmail09:40:003
31826994117,21cyclictest17190-21wc12:15:222
3182699410,30cyclictest5459-21needreboot11:50:212
139391410,0ptp4l401ktimersoftd/308:35:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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