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2026-08-10 - 02:01
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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 Sun Aug 09, 2026 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1282221410,1sleep2458-21stress12:03:012
1574721390,1sleep2458-21stress09:42:342
307021250,1sleep0458-21stress10:25:340
10954211652,58sleep30-21swapper/307:05:573
11065211552,58sleep10-21swapper/107:07:191
11179211254,53sleep20-21swapper/207:08:422
2229621040,1sleep1456-21stress09:56:511
1118229545,22sleep00-21swapper/007:08:440
11387994613,23cyclictest0-21swapper/011:20:250
11387994511,21cyclictest0-21swapper/011:50:170
11387994414,19cyclictest0-21swapper/011:05:160
11387994411,24cyclictest0-21swapper/010:45:360
11387994228,12cyclictest0-21swapper/010:24:090
1138799418,22cyclictest0-21swapper/009:10:330
1138799409,20cyclictest0-21swapper/010:00:260
1138799409,20cyclictest0-21swapper/010:00:250
253472395,13sleep30-21swapper/307:39:503
11389993915,21cyclictest0-21swapper/211:05:122
11387993922,15cyclictest0-21swapper/012:20:350
11387993921,16cyclictest0-21swapper/010:30:230
11387993919,17cyclictest0-21swapper/012:25:330
11387993916,18cyclictest0-21swapper/008:00:060
11387993910,18cyclictest0-21swapper/012:04:390
303542385,13sleep20-21swapper/209:02:092
230932385,13sleep20-21swapper/207:34:202
11388993810,14cyclictest0-21swapper/111:15:261
11388993810,14cyclictest0-21swapper/111:15:251
1138799385,25cyclictest0-21swapper/007:40:250
11387993821,15cyclictest0-21swapper/012:07:230
11387993820,15cyclictest0-21swapper/009:50:280
11387993818,14cyclictest0-21swapper/007:55:290
275262375,13sleep20-21swapper/207:44:342
16382375,12sleep30-21swapper/307:58:103
151242375,11sleep20-21swapper/208:29:542
150022375,13sleep20-21swapper/207:15:152
131722375,12sleep30-21swapper/307:10:433
125542375,13sleep30-21swapper/308:20:283
11389993711,23cyclictest0-21swapper/212:21:532
1138899376,16cyclictest0-21swapper/110:55:331
11388993713,21cyclictest0-21swapper/112:15:221
1138799376,21cyclictest0-21swapper/009:40:280
1138799375,23cyclictest0-21swapper/007:30:180
1138799375,18cyclictest0-21swapper/010:05:200
11387993720,14cyclictest0-21swapper/011:35:060
11387993712,20cyclictest0-21swapper/008:55:500
273022365,11sleep30-21swapper/307:41:553
215282365,13sleep30-21swapper/308:42:023
148172365,12sleep30-21swapper/308:26:173
11390993616,17cyclictest0-21swapper/309:17:423
11389993611,21cyclictest0-21swapper/210:28:362
11388993624,10cyclictest0-21swapper/112:31:031
11388993614,20cyclictest0-21swapper/109:20:161
11388993614,20cyclictest0-21swapper/109:20:161
11388993613,21cyclictest0-21swapper/109:34:431
11388993613,20cyclictest0-21swapper/110:50:221
11388993613,20cyclictest0-21swapper/110:10:221
11388993613,20cyclictest0-21swapper/110:10:211
11388993613,20cyclictest0-21swapper/109:25:321
11388993613,20cyclictest0-21swapper/109:25:321
11388993610,23cyclictest0-21swapper/111:00:111
11388993610,19cyclictest0-21swapper/110:31:051
1138799366,21cyclictest0-21swapper/008:10:120
1138799366,20cyclictest0-21swapper/010:50:370
1138799366,20cyclictest0-21swapper/009:00:230
1138799365,19cyclictest0-21swapper/008:05:180
11387993619,15cyclictest0-21swapper/011:30:320
11387993613,20cyclictest0-21swapper/009:35:140
288152355,12sleep10-21swapper/107:45:221
258172355,12sleep10-21swapper/108:50:331
258172355,12sleep10-21swapper/108:50:331
194002355,12sleep10-21swapper/108:38:021
172532355,10sleep20-21swapper/208:33:472
11390993513,20cyclictest0-21swapper/311:40:423
1138999356,26cyclictest0-21swapper/210:10:352
1138999356,26cyclictest0-21swapper/210:10:342
11389993513,19cyclictest0-21swapper/211:40:282
11389993511,21cyclictest0-21swapper/211:10:182
11389993511,21cyclictest0-21swapper/211:10:182
11388993515,17cyclictest0-21swapper/111:10:031
11388993515,17cyclictest0-21swapper/111:10:031
1138799358,25cyclictest0-21swapper/007:51:530
1138799356,20cyclictest0-21swapper/007:45:230
1138799356,19cyclictest0-21swapper/008:40:010
1138799354,28cyclictest0-21swapper/010:40:330
11387993521,12cyclictest0-21swapper/012:30:170
11387993520,13cyclictest0-21swapper/012:35:170
11387993520,13cyclictest0-21swapper/011:55:180
11387993519,15cyclictest0-21swapper/009:07:020
11387993519,14cyclictest0-21swapper/009:49:070
11387993517,16cyclictest0-21swapper/011:11:510
11387993517,16cyclictest0-21swapper/011:11:510
11387993517,16cyclictest0-21swapper/010:57:220
11387993511,21cyclictest0-21swapper/012:15:270
105782355,13sleep20-21swapper/208:18:102
61262345,12sleep10-21swapper/108:07:221
39192345,10sleep30-21swapper/308:02:593
250552345,12sleep10-21swapper/107:36:151
215262345,12sleep10-21swapper/108:42:001
207712345,12sleep10-21swapper/107:27:541
187082345,12sleep10-21swapper/107:24:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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