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2026-03-07 - 15:43
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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 rack7slot1.osadl.org (updated Fri Mar 06, 2026 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
630921150,1sleep12789-21stress10:33:051
15573210144,22sleep00-21swapper/007:08:320
1551629567,23sleep20-21swapper/207:07:502
1543828456,23sleep10-21swapper/107:06:481
1382228355,23sleep30-21swapper/307:05:063
93542700,1sleep29356-21latency_hist09:25:022
237002420,9sleep31579099cyclictest11:15:123
15790994126,12cyclictest0-21swapper/309:18:173
15789994115,19cyclictest0-21swapper/210:06:502
15790994016,22cyclictest0-21swapper/310:50:193
15789994014,23cyclictest0-21swapper/212:36:102
15787994016,22cyclictest0-21swapper/010:45:130
15787994014,19cyclictest0-21swapper/008:15:150
15787994013,20cyclictest0-21swapper/008:40:250
15787994011,19cyclictest0-21swapper/009:10:330
1578999397,29cyclictest0-21swapper/209:50:262
1578999397,29cyclictest0-21swapper/209:50:262
1578899396,26cyclictest0-21swapper/108:46:141
15787993916,20cyclictest0-21swapper/010:50:290
15787993912,20cyclictest0-21swapper/007:42:210
15790993823,13cyclictest0-21swapper/311:53:203
15789993815,21cyclictest0-21swapper/210:00:072
1578799389,18cyclictest0-21swapper/010:38:170
15787993815,21cyclictest0-21swapper/010:08:210
15787993815,20cyclictest0-21swapper/011:15:040
15787993814,22cyclictest0-21swapper/010:03:250
15787993814,16cyclictest0-21swapper/007:30:010
15787993814,16cyclictest0-21swapper/007:30:010
3632375,13sleep00-21swapper/009:03:000
28972375,12sleep20-21swapper/207:51:132
267752375,13sleep10-21swapper/107:30:431
267752375,13sleep10-21swapper/107:30:431
263772375,13sleep00-21swapper/008:46:440
247292375,13sleep10-21swapper/107:26:381
205912375,13sleep10-21swapper/107:18:071
15790993723,12cyclictest0-21swapper/310:16:583
15790993718,16cyclictest0-21swapper/310:10:433
15790993718,16cyclictest0-21swapper/310:10:423
15790993718,16cyclictest0-21swapper/309:55:313
15790993717,17cyclictest0-21swapper/311:44:533
15790993717,17cyclictest0-21swapper/309:49:553
15790993716,18cyclictest0-21swapper/312:15:273
15790993716,18cyclictest0-21swapper/312:10:333
15790993716,18cyclictest0-21swapper/311:05:353
15790993716,18cyclictest0-21swapper/310:25:283
15790993716,18cyclictest0-21swapper/310:05:233
1578999378,26cyclictest0-21swapper/209:30:232
15788993715,19cyclictest0-21swapper/112:16:111
1578799379,25cyclictest0-21swapper/010:19:140
15787993712,19cyclictest0-21swapper/007:22:500
15787993711,23cyclictest0-21swapper/011:00:120
9972365,13sleep00-21swapper/007:49:340
225482365,12sleep20-21swapper/207:20:532
15790993617,17cyclictest0-21swapper/312:40:013
15790993617,17cyclictest0-21swapper/311:30:313
15790993617,17cyclictest0-21swapper/311:30:313
15790993617,17cyclictest0-21swapper/310:30:353
15790993617,16cyclictest0-21swapper/309:35:173
15790993616,18cyclictest0-21swapper/309:50:223
15790993616,18cyclictest0-21swapper/309:50:213
15790993616,17cyclictest0-21swapper/311:02:593
15790993616,17cyclictest0-21swapper/309:29:133
15789993610,23cyclictest0-21swapper/210:55:172
15787993616,17cyclictest0-21swapper/009:15:100
15787993612,22cyclictest0-21swapper/010:40:090
15787993610,23cyclictest0-21swapper/010:33:230
52902355,12sleep20-21swapper/207:59:232
310622355,12sleep20-21swapper/207:41:222
15790993519,14cyclictest0-21swapper/312:29:053
15790993518,14cyclictest0-21swapper/312:05:203
15790993518,14cyclictest0-21swapper/312:05:203
15790993518,14cyclictest0-21swapper/309:40:313
15790993518,14cyclictest0-21swapper/309:40:313
15790993517,16cyclictest0-21swapper/309:20:263
15790993517,15cyclictest0-21swapper/311:10:253
15790993517,15cyclictest0-21swapper/310:00:273
15790993516,17cyclictest0-21swapper/311:35:303
15790993516,17cyclictest0-21swapper/309:30:253
15790993516,16cyclictest0-21swapper/312:00:233
15790993516,16cyclictest0-21swapper/312:00:233
15790993515,17cyclictest0-21swapper/311:45:473
15790993515,17cyclictest0-21swapper/310:35:263
1578999357,25cyclictest0-21swapper/209:39:142
15789993512,20cyclictest0-21swapper/211:15:332
15789993510,22cyclictest0-21swapper/212:15:382
1578899355,16cyclictest0-21swapper/108:18:401
15788993511,21cyclictest0-21swapper/110:00:081
1578799355,20cyclictest0-21swapper/012:00:210
1578799355,20cyclictest0-21swapper/012:00:210
15787993521,12cyclictest0-21swapper/011:25:170
15787993521,12cyclictest0-21swapper/011:25:170
15787993515,17cyclictest0-21swapper/009:55:070
15787993514,18cyclictest0-21swapper/011:59:140
15787993513,15cyclictest0-21swapper/008:13:210
30512345,12sleep10-21swapper/107:53:041
204182345,12sleep20-21swapper/207:16:002
181132345,10sleep20-21swapper/208:29:342
178762345,12sleep10-21swapper/107:14:591
176232345,10sleep20-21swapper/207:11:512
15790993419,13cyclictest0-21swapper/312:30:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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