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2026-05-17 - 02:31
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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 Sun May 17, 2026 00:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1633421190,1sleep02915-21stress00:10:130
14592211754,58sleep20-21swapper/219:07:132
14499211753,59sleep10-21swapper/119:06:071
14809211551,58sleep00-21swapper/019:09:560
13051211352,55sleep30-21swapper/319:05:133
200942920,1sleep02917-21stress00:18:570
14924994614,20cyclictest0-21swapper/000:23:020
14924994315,18cyclictest0-21swapper/022:30:230
1492499428,19cyclictest0-21swapper/021:55:020
237402415,13sleep20-21swapper/220:40:232
1492499417,21cyclictest0-21swapper/022:00:480
14924994114,24cyclictest0-21swapper/021:45:430
14924994112,26cyclictest0-21swapper/000:35:310
14924994112,26cyclictest0-21swapper/000:35:300
14925994012,25cyclictest0-21swapper/121:45:171
1492499409,28cyclictest0-21swapper/023:43:180
1492499409,28cyclictest0-21swapper/023:36:570
14924994011,26cyclictest0-21swapper/021:32:190
1492699397,29cyclictest0-21swapper/222:10:332
14924993915,22cyclictest0-21swapper/022:07:080
14924993911,25cyclictest0-21swapper/023:28:190
14924993911,25cyclictest0-21swapper/023:28:190
14924993911,25cyclictest0-21swapper/022:53:450
14924993911,25cyclictest0-21swapper/022:53:450
14924993911,25cyclictest0-21swapper/000:34:560
282532385,13sleep20-21swapper/219:35:482
282532385,13sleep20-21swapper/219:35:482
27532385,13sleep30-21swapper/321:09:123
26882385,13sleep10-21swapper/119:54:441
242482385,13sleep20-21swapper/219:29:222
14926993816,19cyclictest0-21swapper/222:50:542
14926993816,19cyclictest0-21swapper/222:50:542
14924993815,20cyclictest0-21swapper/023:49:470
14924993814,21cyclictest0-21swapper/000:05:550
14924993814,21cyclictest0-21swapper/000:05:550
14924993814,21cyclictest0-21swapper/000:00:150
14924993814,21cyclictest0-21swapper/000:00:150
14924993812,23cyclictest0-21swapper/021:35:090
14924993812,23cyclictest0-21swapper/021:35:090
14924993810,21cyclictest0-21swapper/020:30:220
113332385,13sleep30-21swapper/320:14:033
90762375,13sleep10-21swapper/120:07:351
307562375,12sleep20-21swapper/220:58:292
26612375,13sleep00-21swapper/019:54:220
263182375,13sleep20-21swapper/220:47:022
25152375,13sleep30-21swapper/319:52:293
240852375,13sleep00-21swapper/020:41:010
167092375,13sleep20-21swapper/219:10:422
154802375,13sleep30-21swapper/320:21:453
1492699377,20cyclictest0-21swapper/223:00:142
14926993714,20cyclictest0-21swapper/223:41:532
14925993714,21cyclictest0-21swapper/100:00:251
14925993714,21cyclictest0-21swapper/100:00:241
14925993710,20cyclictest0-21swapper/121:30:151
14924993716,18cyclictest0-21swapper/023:34:270
14924993716,18cyclictest0-21swapper/023:34:260
14924993712,22cyclictest0-21swapper/023:15:030
14924993712,22cyclictest0-21swapper/023:08:240
68322365,13sleep20-21swapper/220:01:302
4772365,12sleep10-21swapper/121:03:211
47112365,13sleep10-21swapper/119:57:241
304962365,12sleep10-21swapper/119:41:451
304962365,12sleep10-21swapper/119:41:441
285912365,12sleep00-21swapper/020:53:410
284932365,13sleep30-21swapper/319:38:503
284932365,13sleep30-21swapper/319:38:503
283362365,12sleep30-21swapper/320:50:323
26382365,12sleep20-21swapper/219:54:052
262522365,13sleep00-21swapper/020:46:160
239412365,12sleep30-21swapper/319:25:303
221482365,12sleep20-21swapper/220:38:482
200552365,12sleep10-21swapper/120:34:541
199462365,12sleep30-21swapper/320:33:313
14927993610,23cyclictest0-21swapper/321:45:193
14926993617,16cyclictest0-21swapper/222:27:172
14926993617,16cyclictest0-21swapper/222:27:172
14926993617,16cyclictest0-21swapper/221:36:462
14926993617,16cyclictest0-21swapper/221:36:462
14926993615,18cyclictest0-21swapper/221:55:542
14926993615,18cyclictest0-21swapper/221:28:032
14926993615,18cyclictest0-21swapper/221:10:092
14926993614,20cyclictest0-21swapper/222:46:502
14926993614,19cyclictest0-21swapper/222:59:332
14925993614,20cyclictest0-21swapper/100:39:471
14925993614,20cyclictest0-21swapper/100:39:471
14925993612,22cyclictest0-21swapper/121:41:471
14925993612,22cyclictest0-21swapper/121:41:471
1492499369,24cyclictest0-21swapper/000:25:120
1492499368,25cyclictest0-21swapper/021:55:220
14924993620,14cyclictest0-21swapper/023:11:040
132882365,12sleep20-21swapper/220:16:382
7112355,10sleep10-21swapper/121:05:011
306662355,13sleep00-21swapper/019:43:400
306662355,13sleep00-21swapper/019:43:400
283922355,12sleep20-21swapper/220:51:152
177662355,12sleep20-21swapper/220:27:532
156042355,12sleep10-21swapper/120:23:111
14927993514,18cyclictest0-21swapper/322:24:373
14926993516,16cyclictest0-21swapper/200:12:302
14926993515,18cyclictest0-21swapper/222:00:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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