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2026-08-11 - 04:42
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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 Aug 11, 2026 00:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1422211954,59sleep30-21swapper/319:06:093
1422211954,59sleep30-21swapper/319:06:093
1573211654,57sleep00-21swapper/019:07:590
1573211654,57sleep00-21swapper/019:07:580
1541211452,57sleep10-21swapper/119:07:361
1541211452,57sleep10-21swapper/119:07:361
138829267,20sleep20-21swapper/219:05:432
138829267,20sleep20-21swapper/219:05:432
1852994931,16cyclictest0-21swapper/223:55:022
1852994931,16cyclictest0-21swapper/223:55:012
1852994931,16cyclictest0-21swapper/223:05:022
1852994911,26cyclictest0-21swapper/221:35:272
1852994824,22cyclictest0-21swapper/222:50:342
1852994731,14cyclictest0-21swapper/222:55:192
1852994630,13cyclictest0-21swapper/222:06:532
1852994630,13cyclictest0-21swapper/222:06:532
1852994630,13cyclictest0-21swapper/200:32:582
1852994629,15cyclictest0-21swapper/221:30:022
1852994629,15cyclictest0-21swapper/221:15:132
1852994627,17cyclictest0-21swapper/222:25:152
1852994530,12cyclictest0-21swapper/223:21:192
1852994530,12cyclictest0-21swapper/223:21:182
1852994530,12cyclictest0-21swapper/200:25:322
1852994530,12cyclictest0-21swapper/200:25:322
1852994527,16cyclictest0-21swapper/222:45:012
1852994429,13cyclictest0-21swapper/223:40:272
1852994427,15cyclictest0-21swapper/200:00:302
1852994426,16cyclictest0-21swapper/222:30:142
1852994426,15cyclictest0-21swapper/223:10:292
1852994329,12cyclictest0-21swapper/223:25:202
1852994329,12cyclictest0-21swapper/221:47:042
1852994226,14cyclictest0-21swapper/223:30:062
1852994226,14cyclictest0-21swapper/223:00:352
1852994225,15cyclictest0-21swapper/223:38:112
1852994124,15cyclictest0-21swapper/221:34:052
1852994124,15cyclictest0-21swapper/221:34:052
1852994113,10cyclictest23424-21stress22:04:222
1851994113,26cyclictest0-21swapper/121:13:141
1852994028,10cyclictest0-21swapper/221:20:372
1852994026,12cyclictest0-21swapper/222:35:132
1852994025,13cyclictest0-21swapper/223:50:332
1852994025,13cyclictest0-21swapper/223:50:332
1852994025,13cyclictest0-21swapper/221:10:212
1852994010,27cyclictest0-21swapper/200:20:352
1852993823,13cyclictest0-21swapper/223:48:502
1852993822,14cyclictest0-21swapper/222:20:452
1852993817,19cyclictest0-21swapper/221:55:222
1852993811,25cyclictest0-21swapper/222:45:272
1851993815,20cyclictest0-21swapper/100:10:481
1851993812,23cyclictest0-21swapper/121:45:201
185099388,27cyclictest0-21swapper/021:53:150
1850993810,25cyclictest0-21swapper/022:10:310
1853993713,21cyclictest0-21swapper/300:24:063
185299378,26cyclictest0-21swapper/222:15:012
1852993723,12cyclictest0-21swapper/200:35:232
1852993723,12cyclictest0-21swapper/200:17:192
1851993715,19cyclictest0-21swapper/122:55:321
1850993711,20cyclictest0-21swapper/020:36:030
185399368,25cyclictest0-21swapper/300:02:543
1852993622,12cyclictest0-21swapper/222:15:282
1852993618,16cyclictest0-21swapper/221:05:132
1852993617,17cyclictest0-21swapper/200:05:402
1852993615,19cyclictest0-21swapper/221:40:192
122692365,13sleep00-21swapper/020:44:230
98362355,13sleep30-21swapper/320:36:233
31472355,12sleep30-21swapper/320:21:013
244592355,13sleep00-21swapper/019:56:520
1853993515,17cyclictest0-21swapper/322:21:123
1853993512,21cyclictest0-21swapper/300:31:433
1852993519,14cyclictest0-21swapper/220:45:202
1852993514,13cyclictest9118-21sed20:35:192
1852993511,21cyclictest0-21swapper/223:15:372
1852993511,21cyclictest0-21swapper/223:15:372
185199356,15cyclictest0-21swapper/123:01:341
1851993514,19cyclictest0-21swapper/123:17:531
1851993514,19cyclictest0-21swapper/123:17:521
1851993514,18cyclictest0-21swapper/122:25:311
1851993513,19cyclictest0-21swapper/123:56:561
1851993513,19cyclictest0-21swapper/123:56:561
1850993516,17cyclictest0-21swapper/019:35:070
1850993512,20cyclictest0-21swapper/021:34:180
1850993512,20cyclictest0-21swapper/021:34:170
1850993511,21cyclictest0-21swapper/022:41:000
1850993511,21cyclictest0-21swapper/000:30:230
1850993511,19cyclictest0-21swapper/019:17:510
152352355,13sleep30-21swapper/320:50:163
10152354,13sleep00-21swapper/020:17:570
9972345,13sleep30-21swapper/320:17:483
78522345,13sleep00-21swapper/020:34:050
77442345,15sleep10-21swapper/120:32:421
59512342,3sleep323425-21stress00:10:023
200142345,13sleep10-21swapper/119:46:171
1853993416,15cyclictest0-21swapper/322:09:563
1853993416,15cyclictest0-21swapper/322:09:563
185299348,24cyclictest0-21swapper/220:05:112
1852993420,13cyclictest0-21swapper/219:52:012
1852993420,12cyclictest0-21swapper/200:10:172
1852993415,18cyclictest0-21swapper/220:15:182
1852993411,21cyclictest0-21swapper/221:50:252
185199348,17cyclictest0-21swapper/121:40:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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