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2026-03-24 - 05:51
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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 Tue Mar 24, 2026 00:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10806211652,23sleep20-21swapper/219:06:202
10759211653,58sleep10-21swapper/119:05:431
10873211051,54sleep30-21swapper/319:07:103
198942860,3sleep330824-21stress23:15:163
1075828453,26sleep00-21swapper/019:05:420
1119999539,22cyclictest0-21swapper/020:00:380
1119999538,23cyclictest0-21swapper/019:57:310
11199995115,14cyclictest0-21swapper/023:25:240
11199995110,20cyclictest0-21swapper/022:30:020
11199995110,20cyclictest0-21swapper/022:30:020
11199995015,15cyclictest0-21swapper/021:18:330
11199995015,15cyclictest0-21swapper/021:18:320
11199994913,18cyclictest0-21swapper/019:52:010
1119999486,23cyclictest0-21swapper/019:45:060
1119999485,20cyclictest0-21swapper/021:05:060
1119999479,19cyclictest0-21swapper/020:23:330
1119999479,18cyclictest0-21swapper/021:00:060
1119999476,20cyclictest0-21swapper/019:25:060
1119999466,23cyclictest0-21swapper/020:12:020
11199994610,17cyclictest0-21swapper/019:10:140
1119999458,18cyclictest0-21swapper/020:45:060
1119999457,22cyclictest0-21swapper/019:35:060
11199994511,18cyclictest0-21swapper/022:29:250
11199994511,18cyclictest0-21swapper/022:29:250
1119999449,18cyclictest0-21swapper/019:30:280
1119999444,23cyclictest0-21swapper/020:52:030
11200994116,22cyclictest0-21swapper/100:10:421
1119999417,18cyclictest0-21swapper/020:35:540
11200994012,26cyclictest0-21swapper/122:50:361
286662397,13sleep30-21swapper/319:46:413
11200993915,21cyclictest0-21swapper/123:31:221
287562385,14sleep20-21swapper/219:47:472
282722385,14sleep20-21swapper/221:00:492
225462385,14sleep10-21swapper/119:34:471
224852385,14sleep30-21swapper/319:34:013
161632384,14sleep20-21swapper/220:35:152
11200993815,21cyclictest0-21swapper/122:32:471
11200993815,21cyclictest0-21swapper/122:32:471
11200993814,21cyclictest0-21swapper/100:25:281
11200993810,26cyclictest0-21swapper/100:02:361
1119999387,24cyclictest0-21swapper/020:26:320
91492375,13sleep10-21swapper/120:16:461
91492375,13sleep10-21swapper/120:16:451
91352375,13sleep20-21swapper/220:16:342
91352375,13sleep20-21swapper/220:16:342
306792374,14sleep30-21swapper/321:09:123
268082375,13sleep10-21swapper/119:44:531
11200993715,20cyclictest0-21swapper/100:20:021
11200993715,19cyclictest0-21swapper/121:30:531
11200993714,20cyclictest0-21swapper/123:50:111
11200993713,21cyclictest0-21swapper/100:15:161
1119999379,22cyclictest0-21swapper/020:55:380
1119999379,22cyclictest0-21swapper/019:40:120
308622363,13sleep10-21swapper/119:52:201
246782365,12sleep20-21swapper/219:39:452
246272366,11sleep30-21swapper/319:39:103
200662364,13sleep20-21swapper/219:25:382
1120199366,27cyclictest0-21swapper/222:49:422
11200993615,19cyclictest0-21swapper/121:55:251
11200993615,19cyclictest0-21swapper/121:55:251
1119999369,21cyclictest0-21swapper/019:20:340
1119999366,23cyclictest0-21swapper/021:40:290
1119999365,25cyclictest0-21swapper/020:42:020
69382353,12sleep30-21swapper/320:10:503
50882354,12sleep30-21swapper/320:09:493
26312355,11sleep20-21swapper/220:01:152
241432354,12sleep30-21swapper/320:52:203
204082355,11sleep30-21swapper/319:29:523
182992355,11sleep20-21swapper/219:24:572
1120099359,24cyclictest0-21swapper/123:55:261
11200993513,20cyclictest0-21swapper/122:25:251
11200993513,20cyclictest0-21swapper/122:25:241
1119999359,21cyclictest0-21swapper/019:16:030
70232344,11sleep10-21swapper/120:11:561
245812344,11sleep10-21swapper/119:38:361
133432344,11sleep20-21swapper/220:25:402
129292343,12sleep10-21swapper/119:10:491
1120199348,24cyclictest0-21swapper/219:42:022
1120199348,24cyclictest0-21swapper/219:12:332
11201993419,14cyclictest0-21swapper/219:17:422
11201993416,15cyclictest0-21swapper/222:16:562
11201993415,16cyclictest0-21swapper/222:44:472
11201993414,18cyclictest0-21swapper/200:00:202
1120099348,24cyclictest0-21swapper/122:55:031
1120099348,24cyclictest0-21swapper/122:55:031
11200993413,18cyclictest0-21swapper/123:50:021
11200993413,18cyclictest0-21swapper/123:50:011
1119999348,21cyclictest0-21swapper/020:05:060
305082333,11sleep10-21swapper/121:07:111
264732333,11sleep10-21swapper/120:59:521
241062333,11sleep10-21swapper/120:51:541
179572335,9sleep10-21swapper/120:39:561
11202993315,15cyclictest0-21swapper/321:53:543
11202993315,15cyclictest0-21swapper/300:25:003
11202993314,16cyclictest0-21swapper/300:33:043
1120199338,23cyclictest0-21swapper/220:55:322
11201993317,13cyclictest0-21swapper/222:31:372
11201993317,13cyclictest0-21swapper/222:31:362
11201993315,15cyclictest0-21swapper/223:00:012
11201993315,15cyclictest0-21swapper/223:00:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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