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2026-08-22 - 21:42
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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 Sat Aug 22, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2976121190,1sleep227778-21stress09:13:052
5726211352,55sleep20-21swapper/207:06:282
5743211252,55sleep30-21swapper/307:06:403
585928452,27sleep00-21swapper/007:07:590
407428254,23sleep10-21swapper/107:05:021
617299468,35cyclictest0-21swapper/111:50:201
617299468,35cyclictest0-21swapper/111:50:201
6171994211,28cyclictest0-21swapper/010:37:500
617299398,28cyclictest0-21swapper/112:06:011
617299397,29cyclictest0-21swapper/112:13:281
617299397,29cyclictest0-21swapper/111:03:101
267742395,13sleep20-21swapper/207:54:572
6179993814,17cyclictest0-21swapper/310:45:163
617299387,28cyclictest0-21swapper/110:48:081
6172993814,21cyclictest0-21swapper/112:36:241
6172993814,21cyclictest0-21swapper/109:17:481
145502384,13sleep00-21swapper/008:40:020
98312375,13sleep20-21swapper/208:27:442
6179993718,17cyclictest0-21swapper/311:55:193
617299379,25cyclictest0-21swapper/109:11:351
617199378,26cyclictest0-21swapper/011:54:380
617199378,26cyclictest0-21swapper/011:54:380
31592375,13sleep20-21swapper/208:13:092
308912375,12sleep20-21swapper/208:01:052
176272375,13sleep20-21swapper/207:31:102
133492375,13sleep00-21swapper/007:23:220
120282375,13sleep20-21swapper/208:32:572
617999364,29cyclictest0-21swapper/311:50:293
617999364,29cyclictest0-21swapper/311:50:293
6179993616,17cyclictest0-21swapper/309:10:183
6173993612,21cyclictest0-21swapper/211:18:412
6173993610,23cyclictest0-21swapper/211:27:442
6171993612,21cyclictest0-21swapper/011:58:560
201002364,13sleep00-21swapper/007:39:380
185642365,13sleep00-21swapper/008:46:070
176492365,13sleep10-21swapper/107:31:251
157172365,13sleep10-21swapper/107:30:011
133832365,13sleep10-21swapper/107:23:471
75272355,12sleep20-21swapper/208:21:302
6179993519,14cyclictest0-21swapper/311:24:053
6179993515,18cyclictest0-21swapper/310:20:253
6179993515,17cyclictest0-21swapper/309:55:013
6179993514,18cyclictest0-21swapper/311:05:203
6179993514,18cyclictest0-21swapper/311:05:193
6179993513,20cyclictest0-21swapper/309:20:133
6179993513,20cyclictest0-21swapper/309:20:133
6179993512,20cyclictest0-21swapper/310:25:093
6173993517,15cyclictest0-21swapper/211:14:002
6173993517,15cyclictest0-21swapper/211:14:002
6173993517,15cyclictest0-21swapper/210:04:462
6173993516,16cyclictest0-21swapper/210:22:182
6173993516,16cyclictest0-21swapper/209:58:262
6173993511,21cyclictest0-21swapper/212:00:322
6173993511,21cyclictest0-21swapper/210:56:392
617299359,23cyclictest0-21swapper/109:30:211
617299359,23cyclictest0-21swapper/109:30:201
6172993511,21cyclictest0-21swapper/109:50:051
617199359,23cyclictest0-21swapper/010:50:390
6171993520,13cyclictest0-21swapper/011:05:110
6171993520,13cyclictest0-21swapper/011:05:100
6171993513,19cyclictest0-21swapper/010:12:420
309752355,12sleep10-21swapper/108:02:091
276492355,13sleep10-21swapper/109:09:251
275542354,12sleep00-21swapper/009:08:170
164892355,10sleep20-21swapper/208:42:492
141422355,13sleep10-21swapper/108:36:371
112102355,13sleep10-21swapper/107:19:151
111222354,13sleep00-21swapper/007:18:050
8062345,10sleep20-21swapper/208:07:432
6179993420,12cyclictest0-21swapper/309:40:013
6179993419,13cyclictest0-21swapper/312:15:273
6179993417,15cyclictest0-21swapper/312:35:303
6179993417,15cyclictest0-21swapper/310:15:333
6179993415,17cyclictest0-21swapper/311:31:563
6179993415,17cyclictest0-21swapper/311:20:003
6179993414,17cyclictest0-21swapper/309:55:353
6173993416,15cyclictest0-21swapper/210:05:132
6173993415,16cyclictest0-21swapper/210:40:232
6173993415,16cyclictest0-21swapper/210:40:222
6173993415,16cyclictest0-21swapper/209:47:092
6173993414,17cyclictest0-21swapper/211:55:172
6173993413,18cyclictest0-21swapper/209:50:412
6173993413,18cyclictest0-21swapper/209:40:062
6173993412,19cyclictest0-21swapper/210:30:342
6173993411,20cyclictest0-21swapper/211:50:172
6173993411,20cyclictest0-21swapper/211:50:172
6173993411,20cyclictest0-21swapper/211:35:042
6173993411,20cyclictest0-21swapper/211:32:302
617299349,22cyclictest0-21swapper/110:50:121
617299346,17cyclictest0-21swapper/112:00:221
6172993411,21cyclictest0-21swapper/111:40:301
6172993410,21cyclictest0-21swapper/110:00:091
6171993415,16cyclictest0-21swapper/012:09:070
6171993410,21cyclictest0-21swapper/012:00:040
6171993410,21cyclictest0-21swapper/011:47:380
6171993410,21cyclictest0-21swapper/011:47:370
6171993410,18cyclictest0-21swapper/008:56:360
6171993410,18cyclictest0-21swapper/008:56:360
6171993410,18cyclictest0-21swapper/007:25:360
6171993410,16cyclictest0-21swapper/010:40:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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