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2026-05-14 - 08:36
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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 Thu May 14, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29203211251,56sleep20-21swapper/219:06:522
2916029353,35sleep30-21swapper/319:06:253
2936528557,23sleep00-21swapper/019:08:540
2910828454,25sleep10-21swapper/119:05:461
29552994214,22cyclictest0-21swapper/020:45:050
29552994113,22cyclictest0-21swapper/020:41:210
29553994016,21cyclictest0-21swapper/123:49:481
2955299409,24cyclictest0-21swapper/020:05:050
29552994012,21cyclictest0-21swapper/020:30:210
29552993916,17cyclictest0-21swapper/021:05:050
29552993914,18cyclictest0-21swapper/019:13:200
20022395,13sleep30-21swapper/320:31:053
41982385,13sleep30-21swapper/319:22:053
29555993814,21cyclictest0-21swapper/323:15:323
29553993813,23cyclictest0-21swapper/123:56:471
2955299388,24cyclictest0-21swapper/019:21:500
42322374,13sleep20-21swapper/219:22:322
323742375,13sleep20-21swapper/220:27:372
2955399377,27cyclictest0-21swapper/121:35:141
29553993714,21cyclictest0-21swapper/123:16:591
29552993716,14cyclictest0-21swapper/019:45:000
29552993715,19cyclictest0-21swapper/022:07:560
29552993715,19cyclictest0-21swapper/000:15:430
29552993713,19cyclictest0-21swapper/020:38:200
29552993712,22cyclictest0-21swapper/000:03:230
213972375,13sleep30-21swapper/320:00:593
172812375,13sleep30-21swapper/319:53:283
171622375,13sleep20-21swapper/221:06:052
171412375,13sleep20-21swapper/219:51:482
150232375,13sleep30-21swapper/319:47:183
129982375,13sleep20-21swapper/219:44:062
128632375,13sleep00-21swapper/020:56:260
109772375,13sleep00-21swapper/020:54:370
108042375,13sleep10-21swapper/120:52:261
86642365,13sleep10-21swapper/120:47:281
84962365,10sleep20-21swapper/219:31:262
84242365,13sleep30-21swapper/319:30:313
43422365,13sleep10-21swapper/120:37:491
29554993620,13cyclictest0-21swapper/200:20:192
29554993611,22cyclictest0-21swapper/221:12:412
29554993611,22cyclictest0-21swapper/221:12:402
29554993610,23cyclictest0-21swapper/221:52:182
2955299369,13cyclictest0-21swapper/023:55:140
2955299367,23cyclictest0-21swapper/019:50:060
29552993615,18cyclictest0-21swapper/022:58:570
29552993615,18cyclictest0-21swapper/022:11:350
29552993614,17cyclictest0-21swapper/019:55:060
29552993612,18cyclictest0-21swapper/020:25:270
29552993612,18cyclictest0-21swapper/019:15:290
29552993610,18cyclictest0-21swapper/020:10:160
29552993610,18cyclictest0-21swapper/020:10:160
278892365,13sleep00-21swapper/020:16:240
235842364,13sleep20-21swapper/220:06:222
20402365,13sleep10-21swapper/119:17:291
63922355,16sleep00-21swapper/019:26:590
42842355,13sleep30-21swapper/320:37:123
321892355,10sleep30-21swapper/320:25:283
29555993515,17cyclictest0-21swapper/322:56:133
29555993513,19cyclictest0-21swapper/322:49:373
29555993512,20cyclictest0-21swapper/321:31:493
29555993512,20cyclictest0-21swapper/300:33:373
29554993515,17cyclictest0-21swapper/200:07:222
29554993511,21cyclictest0-21swapper/221:24:072
2955399358,25cyclictest0-21swapper/122:40:201
2955299356,23cyclictest0-21swapper/020:01:480
2955299356,22cyclictest0-21swapper/019:45:350
2955299356,22cyclictest0-21swapper/019:37:540
29552993514,18cyclictest0-21swapper/022:26:480
29552993514,18cyclictest0-21swapper/022:26:470
29552993514,18cyclictest0-21swapper/022:03:300
22632354,12sleep20-21swapper/220:34:222
21782354,13sleep20-21swapper/219:19:162
215672355,12sleep10-21swapper/120:03:011
193922355,12sleep10-21swapper/119:58:001
174252355,12sleep30-21swapper/321:09:123
108052355,10sleep30-21swapper/319:38:253
85822345,10sleep20-21swapper/220:46:322
29555993414,17cyclictest0-21swapper/322:30:553
29555993414,17cyclictest0-21swapper/321:36:483
29555993414,17cyclictest0-21swapper/321:25:363
29555993412,19cyclictest0-21swapper/300:39:133
2955499348,23cyclictest0-21swapper/222:45:252
2955499347,24cyclictest0-21swapper/221:58:072
29554993415,16cyclictest0-21swapper/222:25:242
29554993415,16cyclictest0-21swapper/222:25:242
29554993414,17cyclictest0-21swapper/222:12:122
29554993411,20cyclictest0-21swapper/223:55:102
29554993411,20cyclictest0-21swapper/221:25:112
29554993411,20cyclictest0-21swapper/221:15:302
29553993410,15cyclictest0-21swapper/119:50:051
2955299346,25cyclictest0-21swapper/022:15:150
2955299345,26cyclictest0-21swapper/023:15:120
2955299345,23cyclictest0-21swapper/021:04:490
29552993415,16cyclictest0-21swapper/023:50:200
29552993415,16cyclictest0-21swapper/023:27:580
29552993414,17cyclictest0-21swapper/022:45:170
29552993414,17cyclictest0-21swapper/022:36:390
29552993413,18cyclictest0-21swapper/023:40:080
29552993413,18cyclictest0-21swapper/023:40:080
29552993410,21cyclictest0-21swapper/000:26:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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