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2026-08-14 - 13:00
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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 Aug 14, 2026 00:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2333121300,1sleep124391-21stress23:30:541
732321270,1sleep324389-21stress21:42:263
2653212666,55sleep30-21swapper/319:09:403
2652212060,20sleep20-21swapper/219:09:392
2525211653,58sleep00-21swapper/019:08:010
236129850,43sleep10-21swapper/119:06:091
257932860,1sleep224391-21stress23:38:422
82592640,1sleep224389-21stress22:59:492
2797994926,20cyclictest0-21swapper/200:39:272
2797994725,20cyclictest0-21swapper/222:10:212
37772460,1sleep124391-21stress21:35:161
2797994528,15cyclictest0-21swapper/223:44:102
2797994528,15cyclictest0-21swapper/222:24:182
2797994427,15cyclictest0-21swapper/223:22:432
2797994327,14cyclictest0-21swapper/200:25:202
2797994325,16cyclictest0-21swapper/222:43:302
2797994224,16cyclictest0-21swapper/221:45:282
2797994223,16cyclictest0-21swapper/200:24:582
2797994127,12cyclictest0-21swapper/222:25:252
2797994127,12cyclictest0-21swapper/221:40:232
2797994127,12cyclictest0-21swapper/200:00:282
2797994125,14cyclictest0-21swapper/221:30:172
279799408,29cyclictest0-21swapper/222:00:172
279799408,29cyclictest0-21swapper/222:00:162
2797994023,15cyclictest0-21swapper/200:10:272
2797994022,16cyclictest0-21swapper/222:30:342
2797994022,16cyclictest0-21swapper/222:30:342
2801993910,26cyclictest0-21swapper/322:56:233
279799398,29cyclictest0-21swapper/221:55:252
2797993926,11cyclictest0-21swapper/223:05:152
2797993925,12cyclictest0-21swapper/222:50:352
2797993925,12cyclictest0-21swapper/222:50:352
2797993922,15cyclictest0-21swapper/222:05:162
2797993912,17cyclictest24391-21stress21:10:012
2796993915,21cyclictest0-21swapper/121:30:421
2796993915,11cyclictest0-21swapper/123:40:341
279799388,27cyclictest0-21swapper/223:15:302
2797993823,13cyclictest0-21swapper/221:10:272
2797993812,23cyclictest0-21swapper/221:36:182
2797993811,24cyclictest0-21swapper/223:30:282
2797993811,24cyclictest0-21swapper/222:37:062
2797993811,24cyclictest0-21swapper/222:37:052
2796993810,15cyclictest0-21swapper/123:40:021
279599387,20cyclictest0-21swapper/023:32:220
2801993710,24cyclictest0-21swapper/322:46:163
279799377,27cyclictest0-21swapper/223:25:232
2797993723,12cyclictest0-21swapper/221:25:172
2797993722,13cyclictest0-21swapper/222:45:032
2797993713,14cyclictest24391-21stress23:02:132
2797993712,15cyclictest24391-21stress00:30:212
279599379,12cyclictest0-21swapper/000:00:040
279599377,27cyclictest0-21swapper/021:18:350
2795993716,18cyclictest0-21swapper/021:43:270
277272375,13sleep30-21swapper/320:03:143
20272375,13sleep30-21swapper/320:18:293
86082365,11sleep10-21swapper/120:31:431
319732365,12sleep00-21swapper/020:10:400
2801993613,20cyclictest0-21swapper/300:37:063
279799368,25cyclictest0-21swapper/223:50:352
279799368,25cyclictest0-21swapper/222:17:022
279799367,26cyclictest0-21swapper/200:17:372
2797993624,10cyclictest26726-21uname20:00:182
2797993614,12cyclictest14090-21tr23:10:302
2797993614,12cyclictest14090-21tr23:10:302
2797993611,13cyclictest24388-21stress21:20:272
2797993611,13cyclictest24388-21stress21:20:272
279699368,25cyclictest0-21swapper/100:17:061
2795993617,17cyclictest0-21swapper/000:31:020
2795993617,16cyclictest0-21swapper/000:10:300
255032365,13sleep00-21swapper/019:57:530
233072365,13sleep10-21swapper/119:53:181
166022365,13sleep30-21swapper/319:36:513
132612365,14sleep30-21swapper/320:44:563
132612365,14sleep30-21swapper/320:44:563
132582365,12sleep00-21swapper/020:44:530
132582365,12sleep00-21swapper/020:44:530
77302355,12sleep30-21swapper/319:16:303
47762355,12sleep30-21swapper/319:12:093
308322355,14sleep30-21swapper/320:10:153
298642355,12sleep00-21swapper/020:07:320
2801993515,18cyclictest0-21swapper/322:16:043
2801993515,17cyclictest0-21swapper/323:57:233
2801993513,19cyclictest0-21swapper/322:52:203
2801993513,19cyclictest0-21swapper/322:52:193
279799358,25cyclictest0-21swapper/221:50:282
279799358,25cyclictest0-21swapper/219:45:222
279799355,27cyclictest0-21swapper/200:05:172
2797993527,6cyclictest8655-21chrt20:32:112
279699358,18cyclictest0-21swapper/121:01:041
2796993514,18cyclictest0-21swapper/100:25:311
279599356,26cyclictest0-21swapper/000:05:210
2795993516,16cyclictest0-21swapper/021:20:240
2795993516,16cyclictest0-21swapper/021:20:240
2795993511,21cyclictest0-21swapper/023:10:210
2795993511,21cyclictest0-21swapper/023:10:210
2795993511,21cyclictest0-21swapper/022:09:160
275342355,12sleep00-21swapper/020:00:510
173582355,13sleep10-21swapper/120:50:471
107632355,13sleep30-21swapper/320:36:113
85352345,13sleep00-21swapper/020:30:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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