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2026-09-12 - 01:18
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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 Fri Sep 11, 2026 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21173210952,52sleep00-21swapper/007:06:560
21207210276,21sleep20-21swapper/207:07:222
2127229267,20sleep30-21swapper/307:08:093
2106928554,26sleep10-21swapper/107:05:421
207772450,1sleep311202-21stress10:41:503
21531994312,28cyclictest0-21swapper/010:59:500
21531994311,29cyclictest0-21swapper/010:36:530
21534994116,22cyclictest0-21swapper/210:52:442
21534994116,22cyclictest0-21swapper/210:52:442
21531994111,28cyclictest0-21swapper/010:42:220
21532994012,13cyclictest0-21swapper/112:32:451
21531994010,20cyclictest0-21swapper/012:36:050
21531994010,20cyclictest0-21swapper/012:36:050
21534993915,21cyclictest0-21swapper/211:55:362
21534993915,21cyclictest0-21swapper/211:55:362
21534993913,14cyclictest0-21swapper/211:45:252
21534993911,25cyclictest0-21swapper/212:07:452
21534993911,25cyclictest0-21swapper/212:07:452
21532993910,26cyclictest0-21swapper/110:15:581
21532993910,26cyclictest0-21swapper/110:15:581
2153199399,27cyclictest0-21swapper/011:21:300
21531993914,22cyclictest0-21swapper/010:45:290
76652385,13sleep20-21swapper/207:48:182
287672385,13sleep30-21swapper/307:23:293
277732385,13sleep20-21swapper/208:34:372
232622385,13sleep00-21swapper/008:24:000
2153499388,27cyclictest0-21swapper/211:51:142
21534993814,21cyclictest0-21swapper/209:10:152
21534993812,23cyclictest0-21swapper/212:03:302
21534993812,23cyclictest0-21swapper/212:03:292
21534993812,23cyclictest0-21swapper/211:07:232
21534993811,24cyclictest0-21swapper/211:31:402
21532993811,24cyclictest0-21swapper/112:27:001
21531993816,20cyclictest0-21swapper/012:30:430
21531993810,25cyclictest0-21swapper/009:30:580
144102385,13sleep20-21swapper/208:04:382
103012385,13sleep20-21swapper/207:55:122
99342375,13sleep10-21swapper/107:53:581
75472375,13sleep30-21swapper/307:46:513
299632375,13sleep00-21swapper/008:39:130
254132375,13sleep30-21swapper/308:27:493
229822375,13sleep10-21swapper/108:20:291
2153499378,26cyclictest0-21swapper/209:59:502
21534993714,20cyclictest0-21swapper/210:49:392
21532993714,21cyclictest0-21swapper/111:14:161
2153199379,17cyclictest0-21swapper/009:38:290
2153199379,17cyclictest0-21swapper/009:38:290
2153199375,29cyclictest0-21swapper/011:15:120
21531993718,16cyclictest0-21swapper/010:32:260
21531993714,21cyclictest0-21swapper/011:50:250
21531993713,21cyclictest0-21swapper/011:40:270
21531993712,22cyclictest0-21swapper/009:50:270
21531993710,24cyclictest0-21swapper/011:10:240
188352375,13sleep30-21swapper/308:13:533
185902375,13sleep10-21swapper/108:10:541
141822375,13sleep00-21swapper/008:01:510
51712365,12sleep10-21swapper/107:40:271
51712365,12sleep10-21swapper/107:40:261
32702365,12sleep10-21swapper/107:39:351
32702365,12sleep10-21swapper/107:39:351
31012365,12sleep30-21swapper/307:37:403
31012365,12sleep30-21swapper/307:37:393
276202365,12sleep10-21swapper/108:32:431
276082365,13sleep00-21swapper/008:32:350
258792365,13sleep30-21swapper/308:30:043
254772365,12sleep10-21swapper/108:28:311
21531993619,15cyclictest0-21swapper/011:00:540
21531993614,19cyclictest0-21swapper/012:18:070
210972365,12sleep30-21swapper/308:19:273
189202365,13sleep20-21swapper/208:14:562
143392365,13sleep30-21swapper/308:03:423
119612365,13sleep10-21swapper/107:57:031
9902355,13sleep30-21swapper/307:35:003
87992355,12sleep30-21swapper/309:03:423
321332355,12sleep30-21swapper/308:42:483
285222354,13sleep00-21swapper/007:20:250
267142355,10sleep20-21swapper/207:19:552
21536993514,18cyclictest0-21swapper/311:35:103
2153499355,19cyclictest0-21swapper/212:25:172
21534993517,15cyclictest0-21swapper/211:24:302
21534993516,16cyclictest0-21swapper/210:07:152
21534993515,17cyclictest0-21swapper/209:48:022
21534993513,19cyclictest0-21swapper/211:40:192
21534993513,19cyclictest0-21swapper/209:15:082
2153299358,20cyclictest0-21swapper/108:55:061
21532993517,16cyclictest0-21swapper/111:25:351
21532993516,17cyclictest0-21swapper/110:03:481
21532993513,19cyclictest0-21swapper/110:29:351
21532993512,21cyclictest0-21swapper/111:36:481
2153199357,25cyclictest0-21swapper/011:45:170
2153199357,25cyclictest0-21swapper/009:29:240
21531993511,21cyclictest0-21swapper/012:23:410
99032344,12sleep00-21swapper/007:53:360
41982345,10sleep30-21swapper/308:52:113
31412345,13sleep20-21swapper/207:38:072
31412345,13sleep20-21swapper/207:38:072
310792345,10sleep20-21swapper/207:28:452
308692345,10sleep00-21swapper/007:26:180
269932345,10sleep10-21swapper/107:20:091
2153699349,22cyclictest0-21swapper/312:05:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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