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2026-04-23 - 15:14
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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 Apr 23, 2026 12:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2912921500,1sleep318718-21stress10:49:393
30520212766,20sleep20-21swapper/207:05:282
30520212766,20sleep20-21swapper/207:05:282
30752211451,58sleep00-21swapper/007:08:150
30752211451,58sleep00-21swapper/007:08:150
30570211151,21sleep10-21swapper/107:06:031
30570211151,21sleep10-21swapper/107:06:031
2917021090,1sleep318720-21stress09:32:463
2917021090,1sleep318720-21stress09:32:463
3088028560,20sleep30-21swapper/307:09:503
3088028560,20sleep30-21swapper/307:09:503
3099499446,27cyclictest0-21swapper/009:19:480
30994994217,22cyclictest0-21swapper/010:15:340
3099499415,26cyclictest0-21swapper/012:15:210
30997994025,12cyclictest0-21swapper/110:39:281
186602405,13sleep20-21swapper/207:54:082
54692399,10sleep20-21swapper/207:20:522
3099499395,25cyclictest0-21swapper/011:00:010
30994993915,21cyclictest0-21swapper/009:24:430
30994993911,25cyclictest0-21swapper/009:25:120
30994993910,19cyclictest0-21swapper/008:20:060
146482394,13sleep20-21swapper/207:45:022
33052385,13sleep20-21swapper/208:31:502
3099799389,26cyclictest0-21swapper/110:08:201
3099799389,26cyclictest0-21swapper/110:08:201
3099499389,22cyclictest0-21swapper/010:46:460
30994993812,23cyclictest0-21swapper/010:54:510
30994993811,17cyclictest0-21swapper/008:15:110
30994993810,22cyclictest0-21swapper/007:25:060
227692384,13sleep20-21swapper/208:02:022
121312389,10sleep20-21swapper/208:54:232
56752375,13sleep10-21swapper/107:23:241
56222375,13sleep30-21swapper/307:22:463
35222374,13sleep10-21swapper/107:18:271
3099799378,14cyclictest0-21swapper/110:25:121
30997993712,22cyclictest0-21swapper/112:13:031
30997993711,23cyclictest0-21swapper/112:01:141
30997993711,23cyclictest0-21swapper/111:50:441
30997993711,23cyclictest0-21swapper/111:50:441
3099499379,25cyclictest0-21swapper/011:30:240
3099499379,22cyclictest0-21swapper/007:17:380
3099499375,24cyclictest0-21swapper/012:30:170
30994993718,17cyclictest0-21swapper/008:35:000
30994993715,19cyclictest0-21swapper/012:35:250
30994993715,19cyclictest0-21swapper/012:35:250
30994993714,20cyclictest0-21swapper/011:55:210
140782374,13sleep20-21swapper/208:57:042
13312375,13sleep10-21swapper/108:29:401
125322375,13sleep20-21swapper/207:40:052
120962375,13sleep00-21swapper/008:53:570
11222375,13sleep00-21swapper/008:27:030
54412365,13sleep00-21swapper/007:20:300
4042365,13sleep10-21swapper/107:12:051
30998993610,23cyclictest0-21swapper/211:56:132
3099799368,25cyclictest0-21swapper/111:10:161
3099799368,25cyclictest0-21swapper/110:50:251
3099799366,27cyclictest0-21swapper/110:41:071
3099799366,27cyclictest0-21swapper/110:41:071
30997993614,19cyclictest0-21swapper/111:49:571
3099499369,24cyclictest0-21swapper/010:05:070
3099499369,24cyclictest0-21swapper/010:05:070
3099499369,21cyclictest0-21swapper/007:35:060
3099499369,17cyclictest0-21swapper/008:00:330
3099499368,25cyclictest0-21swapper/011:45:330
3099499368,25cyclictest0-21swapper/009:55:080
3099499368,25cyclictest0-21swapper/009:40:340
3099499367,26cyclictest0-21swapper/011:20:180
3099499367,26cyclictest0-21swapper/011:20:170
3099499367,26cyclictest0-21swapper/009:50:020
3099499366,20cyclictest0-21swapper/008:10:430
3099499365,20cyclictest0-21swapper/007:55:230
3099499365,19cyclictest0-21swapper/008:40:060
30994993615,19cyclictest0-21swapper/010:10:300
30994993613,21cyclictest0-21swapper/010:35:200
30994993613,20cyclictest0-21swapper/009:35:070
30994993612,21cyclictest0-21swapper/010:25:250
291602364,13sleep10-21swapper/108:16:331
185982365,12sleep30-21swapper/309:09:283
185532365,13sleep00-21swapper/007:52:460
176032364,14sleep20-21swapper/209:05:182
162552364,13sleep10-21swapper/107:45:531
54702355,13sleep10-21swapper/108:36:581
31000993511,21cyclictest0-21swapper/310:52:243
3099899357,16cyclictest0-21swapper/209:50:302
3099799359,23cyclictest0-21swapper/111:01:561
3099799359,23cyclictest0-21swapper/109:57:041
3099799358,24cyclictest0-21swapper/110:02:011
3099799357,25cyclictest0-21swapper/112:06:351
3099799357,25cyclictest0-21swapper/111:06:221
30997993512,21cyclictest0-21swapper/108:45:231
30997993512,20cyclictest0-21swapper/109:49:151
30997993512,20cyclictest0-21swapper/109:34:381
30997993512,20cyclictest0-21swapper/109:34:381
30997993511,21cyclictest0-21swapper/111:15:081
30997993511,21cyclictest0-21swapper/111:15:081
30997993511,21cyclictest0-21swapper/110:22:571
30997993511,21cyclictest0-21swapper/109:42:151
3099499359,23cyclictest0-21swapper/011:40:270
3099499359,23cyclictest0-21swapper/011:35:150
3099499359,23cyclictest0-21swapper/011:25:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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