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2026-03-16 - 14:27
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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 Mon Mar 16, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18747211554,56sleep20-21swapper/207:09:342
18621211152,54sleep30-21swapper/307:07:543
18436211051,54sleep00-21swapper/007:05:300
18522210951,20sleep10-21swapper/107:06:341
18888994710,26cyclictest0-21swapper/009:55:180
18888994710,26cyclictest0-21swapper/009:55:180
18889994510,26cyclictest0-21swapper/112:13:111
18890994415,26cyclictest0-21swapper/211:01:222
18890994415,26cyclictest0-21swapper/211:01:222
18890994113,25cyclictest0-21swapper/209:50:122
18890994016,21cyclictest0-21swapper/211:59:312
18890993915,21cyclictest0-21swapper/212:34:082
18890993910,26cyclictest0-21swapper/210:50:042
18888993911,22cyclictest0-21swapper/008:47:090
82172385,13sleep20-21swapper/207:56:132
300892385,12sleep30-21swapper/308:50:063
297022385,13sleep20-21swapper/208:48:342
252032385,13sleep30-21swapper/308:35:243
210952385,13sleep20-21swapper/208:27:092
207902380,1sleep16066-21stress09:43:381
18889993810,25cyclictest0-21swapper/111:38:331
18889993810,25cyclictest0-21swapper/111:38:321
1888899389,23cyclictest0-21swapper/007:32:090
1888899389,22cyclictest0-21swapper/009:00:350
1888899389,22cyclictest0-21swapper/007:56:100
18888993814,21cyclictest0-21swapper/009:42:520
169982385,13sleep20-21swapper/208:19:112
14182385,13sleep20-21swapper/208:57:002
39012375,13sleep30-21swapper/307:45:353
319292375,13sleep20-21swapper/208:54:432
297742375,14sleep10-21swapper/108:49:291
262472375,13sleep30-21swapper/307:25:023
1889099379,25cyclictest0-21swapper/211:35:052
1889099379,25cyclictest0-21swapper/211:35:052
18890993716,18cyclictest0-21swapper/212:06:152
18890993713,21cyclictest0-21swapper/211:40:362
18890993713,21cyclictest0-21swapper/211:40:362
18889993713,21cyclictest0-21swapper/110:48:181
1888899379,25cyclictest0-21swapper/010:31:240
1888899379,25cyclictest0-21swapper/010:31:240
1888899378,23cyclictest0-21swapper/008:20:460
1888899378,23cyclictest0-21swapper/008:20:450
1888899378,23cyclictest0-21swapper/007:49:150
1888899376,19cyclictest0-21swapper/012:13:110
18888993711,23cyclictest0-21swapper/011:23:170
18888993710,22cyclictest0-21swapper/008:02:100
18888993710,21cyclictest0-21swapper/007:10:060
36662365,13sleep10-21swapper/109:02:481
318892365,13sleep10-21swapper/108:54:141
273652365,13sleep10-21swapper/108:40:431
1889099369,24cyclictest0-21swapper/210:21:002
18890993614,20cyclictest0-21swapper/210:05:312
18890993612,21cyclictest0-21swapper/210:01:332
18890993612,21cyclictest0-21swapper/209:55:402
18890993612,21cyclictest0-21swapper/209:55:402
18890993612,21cyclictest0-21swapper/209:35:082
1888999369,25cyclictest0-21swapper/111:05:361
1888999369,25cyclictest0-21swapper/111:05:361
18889993612,22cyclictest0-21swapper/109:49:331
1888899369,24cyclictest0-21swapper/009:20:590
1888899369,24cyclictest0-21swapper/009:20:590
1888899369,21cyclictest0-21swapper/007:27:390
1888899368,22cyclictest0-21swapper/007:22:090
1888899368,21cyclictest0-21swapper/007:41:120
1888899367,23cyclictest0-21swapper/008:50:350
18888993612,21cyclictest0-21swapper/012:01:320
18888993610,21cyclictest0-21swapper/008:30:160
106542365,13sleep10-21swapper/108:04:541
82452355,10sleep30-21swapper/307:56:343
40322355,13sleep10-21swapper/107:47:181
298012355,10sleep30-21swapper/308:49:473
278672355,13sleep20-21swapper/207:26:582
19462355,10sleep30-21swapper/307:43:233
18891993514,18cyclictest0-21swapper/312:00:293
1889099359,23cyclictest0-21swapper/212:00:062
1889099356,26cyclictest0-21swapper/209:17:392
1889099356,26cyclictest0-21swapper/209:17:392
18890993517,16cyclictest0-21swapper/211:48:172
18890993517,16cyclictest0-21swapper/211:29:142
18890993517,15cyclictest0-21swapper/211:12:592
18890993513,20cyclictest0-21swapper/209:40:182
18890993513,19cyclictest0-21swapper/209:50:012
18890993512,20cyclictest0-21swapper/210:41:212
18890993512,20cyclictest0-21swapper/210:25:062
18890993512,20cyclictest0-21swapper/210:25:062
18890993511,21cyclictest0-21swapper/211:15:142
18890993510,22cyclictest0-21swapper/211:20:222
1888999357,26cyclictest0-21swapper/110:14:441
18889993515,18cyclictest0-21swapper/110:15:201
18889993513,20cyclictest0-21swapper/112:15:441
18889993513,20cyclictest0-21swapper/112:15:441
18889993512,21cyclictest0-21swapper/110:53:051
18889993512,20cyclictest0-21swapper/112:20:111
18889993510,22cyclictest0-21swapper/110:35:251
1888899359,21cyclictest0-21swapper/008:40:450
1888899359,21cyclictest0-21swapper/008:16:220
1888899358,21cyclictest0-21swapper/007:50:170
1888899356,23cyclictest0-21swapper/008:36:140
18888993519,14cyclictest0-21swapper/010:59:040
18888993514,18cyclictest0-21swapper/009:11:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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