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2026-04-25 - 18:19
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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 Apr 25, 2026 12:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15484212056,23sleep20-21swapper/207:06:212
15584211857,55sleep30-21swapper/307:07:383
15732211553,21sleep10-21swapper/107:09:291
15598211451,23sleep00-21swapper/007:07:470
98022405,13sleep20-21swapper/208:06:522
15879994012,19cyclictest0-21swapper/112:10:551
189412395,13sleep20-21swapper/208:30:022
15880993915,21cyclictest0-21swapper/212:31:102
15880993915,21cyclictest0-21swapper/212:31:102
15880993914,22cyclictest0-21swapper/210:59:002
15879993915,21cyclictest0-21swapper/110:05:061
15879993915,21cyclictest0-21swapper/110:05:061
15878993914,22cyclictest0-21swapper/009:16:040
15878993910,26cyclictest0-21swapper/012:35:030
183802385,13sleep30-21swapper/308:26:143
15881993815,20cyclictest0-21swapper/311:10:143
15880993816,19cyclictest0-21swapper/209:54:562
15880993814,21cyclictest0-21swapper/210:18:292
1587999389,26cyclictest0-21swapper/109:23:561
1587999389,26cyclictest0-21swapper/109:23:551
15879993815,20cyclictest0-21swapper/110:13:511
15879993814,21cyclictest0-21swapper/111:57:441
35222375,13sleep20-21swapper/207:54:172
34432375,13sleep00-21swapper/007:53:150
314852375,13sleep30-21swapper/308:59:103
314852375,13sleep30-21swapper/308:59:093
314852375,11sleep20-21swapper/207:43:132
313652375,12sleep10-21swapper/107:41:411
292122375,13sleep30-21swapper/308:52:483
271832375,13sleep10-21swapper/108:49:051
250732375,13sleep00-21swapper/007:28:210
250392375,13sleep30-21swapper/307:27:543
249002375,13sleep30-21swapper/308:42:063
226892375,13sleep20-21swapper/208:36:312
208632375,13sleep10-21swapper/107:19:431
15881993716,18cyclictest0-21swapper/311:45:553
15881993715,15cyclictest0-21swapper/310:51:333
15881993714,20cyclictest0-21swapper/309:45:203
15880993715,19cyclictest0-21swapper/212:35:412
15880993714,20cyclictest0-21swapper/211:30:562
15880993714,20cyclictest0-21swapper/211:07:522
15880993713,21cyclictest0-21swapper/210:03:192
15878993716,18cyclictest0-21swapper/009:50:120
11732375,13sleep10-21swapper/109:03:171
10512375,13sleep30-21swapper/309:01:513
292672365,13sleep10-21swapper/108:53:311
250892365,13sleep00-21swapper/008:44:310
249162365,13sleep20-21swapper/208:42:162
207232365,12sleep30-21swapper/307:18:013
15881993614,19cyclictest0-21swapper/310:40:153
15881993614,19cyclictest0-21swapper/310:40:143
15881993614,14cyclictest0-21swapper/311:02:033
15880993616,17cyclictest0-21swapper/210:28:282
15880993615,18cyclictest0-21swapper/211:25:272
15880993615,18cyclictest0-21swapper/211:25:272
15879993615,19cyclictest0-21swapper/111:38:011
15879993615,18cyclictest0-21swapper/112:15:151
15879993615,18cyclictest0-21swapper/110:50:041
15879993612,21cyclictest0-21swapper/112:00:061
15879993611,13cyclictest0-21swapper/111:05:041
15879993610,23cyclictest0-21swapper/109:25:081
15879993610,23cyclictest0-21swapper/109:25:081
15878993616,17cyclictest0-21swapper/012:10:090
15878993611,19cyclictest0-21swapper/007:30:060
228312355,13sleep00-21swapper/008:38:220
227182355,13sleep10-21swapper/107:21:001
206812355,10sleep20-21swapper/207:17:272
179712355,12sleep00-21swapper/007:14:490
15881993515,18cyclictest0-21swapper/310:00:073
15881993514,19cyclictest0-21swapper/310:46:073
15881993514,18cyclictest0-21swapper/310:38:173
15881993513,20cyclictest0-21swapper/309:55:363
15881993513,19cyclictest0-21swapper/310:31:053
15881993512,21cyclictest0-21swapper/309:15:143
15880993516,16cyclictest0-21swapper/210:42:532
15880993516,16cyclictest0-21swapper/210:42:532
15880993515,17cyclictest0-21swapper/210:23:552
15880993511,21cyclictest0-21swapper/209:11:542
15879993516,17cyclictest0-21swapper/109:55:201
15879993514,19cyclictest0-21swapper/109:42:331
15879993511,14cyclictest0-21swapper/111:00:161
15878993511,21cyclictest0-21swapper/012:05:150
15878993510,19cyclictest0-21swapper/008:19:440
15878993510,19cyclictest0-21swapper/008:00:240
12612355,12sleep30-21swapper/307:48:293
78242345,10sleep30-21swapper/308:04:043
76852345,10sleep10-21swapper/108:02:141
57312345,10sleep20-21swapper/207:59:502
35062345,10sleep30-21swapper/307:54:063
312712345,12sleep00-21swapper/008:56:220
312712345,12sleep00-21swapper/008:56:220
292442345,10sleep10-21swapper/107:37:161
291032345,10sleep30-21swapper/307:35:293
269052345,10sleep30-21swapper/308:45:313
229402345,10sleep20-21swapper/207:23:452
204752345,13sleep30-21swapper/308:30:463
204532345,12sleep10-21swapper/108:30:291
15881993414,18cyclictest0-21swapper/312:20:193
15881993412,19cyclictest0-21swapper/312:16:013
15881993412,19cyclictest0-21swapper/309:10:293
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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