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2025-12-07 - 00:04
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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 Dec 06, 2025 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
289021510,1sleep026966-21stress09:26:070
2297721370,1sleep326964-21stress10:13:583
5289212562,58sleep30-21swapper/307:07:543
5303211451,57sleep00-21swapper/007:08:020
5378210744,58sleep10-21swapper/107:08:561
5299210650,51sleep20-21swapper/207:08:002
5575994515,27cyclictest0-21swapper/211:36:532
5575994515,27cyclictest0-21swapper/211:36:532
5573994314,26cyclictest0-21swapper/012:25:170
5573994310,30cyclictest0-21swapper/009:45:220
5576994212,27cyclictest0-21swapper/310:25:243
5573994215,24cyclictest0-21swapper/009:55:130
557499418,30cyclictest0-21swapper/109:40:371
557499418,30cyclictest0-21swapper/109:40:361
5573994116,22cyclictest0-21swapper/011:33:010
5574994015,22cyclictest0-21swapper/109:32:461
5573994015,22cyclictest0-21swapper/012:33:200
5573994014,23cyclictest0-21swapper/009:53:050
5573994010,27cyclictest0-21swapper/012:14:260
5573994010,27cyclictest0-21swapper/012:14:260
5575993911,25cyclictest0-21swapper/209:48:452
5574993910,26cyclictest0-21swapper/112:27:381
5573993915,21cyclictest0-21swapper/012:24:510
5573993915,21cyclictest0-21swapper/010:01:000
5573993914,22cyclictest0-21swapper/012:35:200
5576993813,22cyclictest0-21swapper/311:10:243
5576993813,22cyclictest0-21swapper/311:10:013
557499388,21cyclictest0-21swapper/110:19:491
557499387,21cyclictest0-21swapper/111:30:141
5573993816,20cyclictest0-21swapper/011:16:410
5573993816,19cyclictest0-21swapper/012:07:100
5573993814,21cyclictest0-21swapper/011:59:230
5573993814,21cyclictest0-21swapper/010:30:230
20912385,13sleep30-21swapper/308:10:263
147272385,13sleep20-21swapper/208:40:202
90542375,13sleep00-21swapper/008:28:470
90052375,13sleep20-21swapper/208:28:132
72382375,13sleep30-21swapper/308:25:053
65852375,13sleep10-21swapper/108:20:371
557699378,26cyclictest0-21swapper/311:20:163
557699378,26cyclictest0-21swapper/309:55:123
5575993714,20cyclictest0-21swapper/210:36:342
5573993716,18cyclictest0-21swapper/012:00:070
5573993715,19cyclictest0-21swapper/009:30:250
5573993714,21cyclictest0-21swapper/010:17:050
46482375,13sleep20-21swapper/208:19:032
46022375,13sleep30-21swapper/308:18:263
281372375,13sleep30-21swapper/307:56:373
244472375,13sleep10-21swapper/109:02:321
243112375,11sleep20-21swapper/209:00:522
236682375,13sleep30-21swapper/307:46:043
178072375,13sleep20-21swapper/208:47:382
172892375,13sleep00-21swapper/007:34:140
172892375,13sleep00-21swapper/007:34:130
171762375,13sleep10-21swapper/107:32:501
171762375,13sleep10-21swapper/107:32:501
148272375,13sleep20-21swapper/207:26:142
5576993614,19cyclictest0-21swapper/311:15:233
5575993615,19cyclictest0-21swapper/210:40:102
5575993613,20cyclictest0-21swapper/211:45:042
557499365,22cyclictest0-21swapper/110:51:151
5574993612,21cyclictest0-21swapper/109:22:331
5573993615,18cyclictest0-21swapper/010:35:070
5573993611,22cyclictest0-21swapper/009:10:100
5573993610,24cyclictest0-21swapper/011:35:210
5573993610,24cyclictest0-21swapper/011:35:200
173172365,12sleep30-21swapper/307:34:373
173172365,12sleep30-21swapper/307:34:373
132332365,13sleep00-21swapper/008:35:560
113462365,13sleep00-21swapper/008:34:310
111172365,13sleep30-21swapper/308:31:473
72412355,12sleep10-21swapper/108:25:071
67082355,12sleep00-21swapper/008:22:050
557699358,25cyclictest0-21swapper/309:06:453
5575993513,20cyclictest0-21swapper/209:17:132
5575993512,20cyclictest0-21swapper/212:05:202
5575993511,21cyclictest0-21swapper/212:37:272
5575993511,21cyclictest0-21swapper/211:21:152
557499356,15cyclictest0-21swapper/111:50:261
557499356,13cyclictest0-21swapper/112:35:321
5574993514,19cyclictest0-21swapper/111:03:111
5574993514,19cyclictest0-21swapper/111:03:101
5574993512,20cyclictest0-21swapper/111:15:121
324782355,12sleep00-21swapper/008:06:140
258602355,12sleep00-21swapper/007:51:060
221012355,13sleep30-21swapper/308:55:413
194922355,12sleep10-21swapper/107:39:201
194922355,12sleep10-21swapper/107:39:191
177082355,12sleep00-21swapper/008:46:190
129062355,13sleep10-21swapper/107:24:551
110472355,13sleep20-21swapper/208:30:522
74982345,10sleep20-21swapper/207:12:222
557699348,23cyclictest0-21swapper/310:03:433
557699347,24cyclictest0-21swapper/309:40:273
557699347,24cyclictest0-21swapper/309:40:273
557699347,24cyclictest0-21swapper/309:10:333
5576993417,15cyclictest0-21swapper/311:00:363
5576993417,15cyclictest0-21swapper/311:00:353
5576993415,17cyclictest0-21swapper/310:17:133
5575993416,15cyclictest0-21swapper/210:13:382
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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