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2026-03-20 - 17:30
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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 20, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3252521490,1sleep28188-21stress11:20:312
20539211753,58sleep30-21swapper/307:06:013
20656211555,55sleep20-21swapper/207:07:342
2068729748,44sleep00-21swapper/007:07:560
2071828453,26sleep10-21swapper/107:08:201
2096699437,15cyclictest0-21swapper/011:55:010
2096699437,15cyclictest0-21swapper/011:55:010
20979994214,25cyclictest0-21swapper/311:04:033
20966994212,27cyclictest0-21swapper/009:30:370
20979994111,27cyclictest0-21swapper/312:21:443
20979994111,27cyclictest0-21swapper/312:21:443
20967994111,27cyclictest0-21swapper/111:18:421
2097999409,28cyclictest0-21swapper/310:16:313
20967994014,24cyclictest0-21swapper/110:55:441
2096699409,28cyclictest0-21swapper/010:32:590
2096699406,31cyclictest0-21swapper/011:14:330
69322395,13sleep20-21swapper/209:05:182
20967993911,25cyclictest0-21swapper/109:59:151
20967993911,25cyclictest0-21swapper/109:42:131
2096699398,20cyclictest0-21swapper/012:10:210
2096699397,29cyclictest0-21swapper/009:53:230
2096699395,23cyclictest0-21swapper/012:05:090
20966993911,25cyclictest0-21swapper/011:44:050
63142385,13sleep20-21swapper/207:49:272
61122385,13sleep30-21swapper/307:47:013
228792385,13sleep30-21swapper/307:12:593
20967993815,20cyclictest0-21swapper/110:36:141
20967993815,20cyclictest0-21swapper/110:36:131
20967993812,13cyclictest0-21swapper/111:25:241
20967993811,17cyclictest0-21swapper/111:34:351
2096699386,29cyclictest0-21swapper/012:20:110
2096699386,29cyclictest0-21swapper/012:20:110
20966993813,23cyclictest0-21swapper/011:21:120
20966993810,25cyclictest0-21swapper/010:51:110
81912375,13sleep10-21swapper/107:51:241
81292375,13sleep20-21swapper/207:50:362
80172375,13sleep10-21swapper/109:08:551
58562375,13sleep20-21swapper/209:03:342
39262375,13sleep10-21swapper/107:41:321
38522375,13sleep20-21swapper/207:40:372
319712375,13sleep10-21swapper/107:30:421
258022375,13sleep20-21swapper/207:18:202
255852375,13sleep30-21swapper/307:15:403
232382375,13sleep30-21swapper/308:27:303
20979993715,19cyclictest0-21swapper/310:48:543
20979993714,20cyclictest0-21swapper/310:00:383
20979993714,20cyclictest0-21swapper/310:00:383
20979993713,21cyclictest0-21swapper/311:45:163
20979993713,21cyclictest0-21swapper/311:45:153
20979993710,24cyclictest0-21swapper/309:50:303
20967993715,19cyclictest0-21swapper/111:36:241
20967993714,21cyclictest0-21swapper/111:05:131
20967993710,24cyclictest0-21swapper/110:05:391
20967993710,24cyclictest0-21swapper/110:05:391
2096699379,25cyclictest0-21swapper/012:28:510
2096699379,25cyclictest0-21swapper/012:28:510
2096699377,27cyclictest0-21swapper/012:02:480
190612375,13sleep10-21swapper/108:18:511
188032375,13sleep00-21swapper/008:15:400
168652375,13sleep10-21swapper/108:12:571
79922365,12sleep30-21swapper/309:08:363
40242365,13sleep00-21swapper/007:42:490
321242365,12sleep20-21swapper/207:32:352
274072365,12sleep20-21swapper/208:36:232
258282365,12sleep10-21swapper/107:18:391
20979993615,18cyclictest0-21swapper/312:25:123
20979993615,18cyclictest0-21swapper/312:25:123
20979993614,19cyclictest0-21swapper/310:20:193
20979993614,19cyclictest0-21swapper/309:11:333
20979993613,21cyclictest0-21swapper/309:40:053
20979993612,21cyclictest0-21swapper/311:40:333
2097299368,26cyclictest0-21swapper/208:20:372
20967993611,22cyclictest0-21swapper/111:10:061
20966993611,22cyclictest0-21swapper/012:16:570
20966993611,22cyclictest0-21swapper/010:18:350
165062360,1sleep28188-21stress09:27:482
165062360,1sleep28188-21stress09:27:482
14012365,13sleep00-21swapper/008:51:580
12882365,12sleep10-21swapper/108:50:291
82332355,12sleep30-21swapper/307:51:533
59462355,12sleep30-21swapper/309:04:403
255492355,12sleep00-21swapper/008:34:410
20979993515,17cyclictest0-21swapper/310:40:283
20972993519,15cyclictest0-21swapper/207:36:172
20972993518,15cyclictest0-21swapper/208:18:262
20972993516,16cyclictest0-21swapper/210:03:432
20972993516,16cyclictest0-21swapper/210:03:422
20972993515,17cyclictest0-21swapper/209:40:102
20967993515,18cyclictest0-21swapper/110:45:141
20967993515,17cyclictest0-21swapper/112:05:231
20967993514,19cyclictest0-21swapper/112:30:211
20967993514,19cyclictest0-21swapper/112:30:201
2096699359,19cyclictest0-21swapper/008:55:170
2096699359,19cyclictest0-21swapper/008:55:170
2096699357,21cyclictest0-21swapper/009:00:270
20966993512,20cyclictest0-21swapper/011:55:060
20966993512,20cyclictest0-21swapper/011:55:050
20966993512,16cyclictest0-21swapper/007:11:510
20966993511,22cyclictest0-21swapper/011:00:200
20966993511,21cyclictest0-21swapper/012:30:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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