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2026-01-08 - 08:19
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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 Thu Jan 08, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6898212157,58sleep30-21swapper/319:09:503
601221170,1sleep125811-21stress22:55:201
1234521140,1sleep325809-21stress00:27:283
6756211254,53sleep00-21swapper/019:07:580
676229645,46sleep10-21swapper/119:08:031
661928963,21sleep20-21swapper/219:06:162
701399493,29cyclictest9244-21cut20:30:121
701399475,25cyclictest0-21swapper/121:05:231
7013994715,22cyclictest0-21swapper/100:07:221
7014994616,27cyclictest0-21swapper/221:17:202
7014994616,27cyclictest0-21swapper/221:17:202
701399462,28cyclictest25811-21stress00:30:471
701399453,31cyclictest8472-21latency_hist00:20:001
701399452,34cyclictest25808-21stress22:40:121
701399452,28cyclictest25809-21stress00:22:431
701399452,24cyclictest25811-21stress22:01:461
701399445,24cyclictest25811-21stress21:25:191
701399443,31cyclictest25809-21stress22:28:321
701399443,29cyclictest19546-21grep19:35:211
701399443,29cyclictest19546-21grep19:35:211
701399443,28cyclictest0-21swapper/120:15:221
701399443,26cyclictest25809-21stress23:10:151
701399442,27cyclictest25811-21stress22:10:101
701399442,26cyclictest25811-21stress23:07:531
701399433,31cyclictest21242-21if_eth219:40:151
701399433,31cyclictest21242-21if_eth219:40:151
701399433,30cyclictest16428-21if_err_eth123:20:171
701399433,27cyclictest28005-21swap19:55:231
701399433,25cyclictest25811-21stress21:37:171
701399433,25cyclictest25811-21stress21:24:571
701399433,25cyclictest25811-21stress21:13:401
701399433,24cyclictest25811-21stress23:25:341
701399433,24cyclictest25811-21stress23:25:341
701399432,31cyclictest25811-21stress22:06:131
701399432,25cyclictest25809-21stress23:45:111
701399425,24cyclictest0-21swapper/119:50:231
701399423,27cyclictest5056-21cut20:20:101
701399423,24cyclictest25811-21stress23:30:161
701399423,24cyclictest25811-21stress22:50:201
701399423,24cyclictest25811-21stress22:50:201
701399423,24cyclictest25811-21stress21:33:101
701399423,24cyclictest25809-21stress23:50:041
701399423,24cyclictest25809-21stress21:50:261
701399422,26cyclictest7779-21ls23:00:161
701399422,26cyclictest7779-21ls23:00:161
701399422,25cyclictest25811-21stress22:45:291
701399422,24cyclictest25811-21stress21:15:101
701399422,24cyclictest25811-21stress21:15:101
701399422,24cyclictest25809-21stress00:35:231
7013994213,16cyclictest0-21swapper/122:30:141
701399415,29cyclictest0-21swapper/119:15:221
701399415,24cyclictest0-21swapper/120:45:221
701399413,26cyclictest13945-21ls20:40:141
701399413,24cyclictest23412-21df22:20:161
701399413,23cyclictest25809-21stress23:56:331
701399413,23cyclictest25809-21stress23:56:331
701399413,23cyclictest25809-21stress22:15:191
701399413,23cyclictest25809-21stress22:15:191
701399412,25cyclictest25811-21stress00:25:151
701399412,24cyclictest25811-21stress00:03:071
701399412,24cyclictest25809-21stress23:35:241
701399412,24cyclictest25809-21stress23:15:281
701399412,24cyclictest25809-21stress21:55:231
701399412,24cyclictest25809-21stress21:55:231
701399412,24cyclictest25809-21stress21:40:131
7012994116,22cyclictest0-21swapper/000:30:130
242462415,13sleep30-21swapper/319:46:463
701399405,23cyclictest0-21swapper/120:25:121
701399405,23cyclictest0-21swapper/120:00:131
701399404,24cyclictest12296-21proc_pri20:35:181
701399403,35cyclictest25809-21stress21:45:111
701399403,25cyclictest22556-21sort21:00:191
701399403,24cyclictest17704-21timerwakeupswit19:30:231
701399403,23cyclictest25809-21stress00:10:201
701399403,20cyclictest24004-21cat19:45:211
7012994014,24cyclictest0-21swapper/021:47:430
7012994010,27cyclictest0-21swapper/022:31:040
701399395,23cyclictest0-21swapper/120:10:171
701399395,21cyclictest0-21swapper/123:45:011
701299396,26cyclictest0-21swapper/020:36:010
7012993911,25cyclictest0-21swapper/022:35:180
178982395,11sleep30-21swapper/319:30:543
87762385,11sleep20-21swapper/220:28:002
7014993816,19cyclictest0-21swapper/223:01:122
7014993816,19cyclictest0-21swapper/223:01:122
701399385,21cyclictest0-21swapper/119:30:011
701399385,21cyclictest0-21swapper/119:20:191
7012993815,20cyclictest0-21swapper/000:27:200
307192385,11sleep20-21swapper/220:04:022
176182385,14sleep30-21swapper/320:50:113
86182375,13sleep30-21swapper/320:25:573
7014993716,18cyclictest0-21swapper/222:25:182
701399375,21cyclictest0-21swapper/120:55:201
701399374,23cyclictest0-21swapper/120:09:371
701399373,21cyclictest8398-21switchtime19:10:211
7012993710,24cyclictest0-21swapper/023:55:300
7012993710,24cyclictest0-21swapper/023:55:290
304502375,11sleep00-21swapper/020:00:360
25622375,11sleep20-21swapper/220:14:532
202722375,13sleep30-21swapper/319:39:333
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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