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2026-03-24 - 19:54
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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 Mar 24, 2026 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2474221220,1sleep018579-21stress09:22:450
30431211753,23sleep20-21swapper/207:05:232
30937211651,59sleep10-21swapper/107:07:031
30941211451,57sleep00-21swapper/007:07:060
30977210950,54sleep30-21swapper/307:07:333
31274994311,19cyclictest0-21swapper/010:15:230
31277994221,19cyclictest0-21swapper/310:48:013
31277994220,20cyclictest0-21swapper/312:10:583
31277994220,20cyclictest0-21swapper/310:40:263
31275994212,27cyclictest0-21swapper/109:40:431
31275994212,27cyclictest0-21swapper/109:40:431
3127799406,30cyclictest18577-21stress12:01:013
31277993920,17cyclictest0-21swapper/311:55:233
31275993910,26cyclictest0-21swapper/111:22:221
3127499395,20cyclictest0-21swapper/009:15:300
31274993913,23cyclictest0-21swapper/009:55:280
164282395,12sleep00-21swapper/007:46:200
164282395,12sleep00-21swapper/007:46:200
60042385,18sleep20-21swapper/207:24:452
318062384,11sleep20-21swapper/207:10:132
3127799389,26cyclictest0-21swapper/309:15:343
3127799386,28cyclictest18577-21stress09:13:023
3127799386,28cyclictest18577-21stress09:13:013
31276993813,22cyclictest0-21swapper/211:43:302
31275993810,25cyclictest0-21swapper/112:36:491
31275993810,25cyclictest0-21swapper/112:36:491
31275993810,25cyclictest0-21swapper/109:37:251
31274993814,21cyclictest0-21swapper/011:04:330
96612375,15sleep00-21swapper/008:46:110
3127799379,25cyclictest0-21swapper/307:35:213
3127799376,28cyclictest18577-21stress11:36:193
3127799376,28cyclictest18577-21stress11:05:233
3127799376,27cyclictest18579-21stress10:51:123
3127799374,18cyclictest0-21swapper/308:40:133
3127799373,32cyclictest18579-21stress09:28:343
3127799373,17cyclictest18579-21stress12:19:523
31277993722,12cyclictest0-21swapper/310:36:073
31277993719,16cyclictest0-21swapper/309:22:403
31276993710,24cyclictest0-21swapper/212:27:212
3127599379,25cyclictest0-21swapper/110:36:551
3127599379,25cyclictest0-21swapper/110:31:281
31275993711,23cyclictest0-21swapper/111:17:041
31275993711,23cyclictest0-21swapper/111:17:041
31275993710,24cyclictest0-21swapper/111:56:301
31274993712,22cyclictest0-21swapper/011:50:220
270682375,12sleep00-21swapper/008:11:220
119052374,11sleep20-21swapper/208:52:392
99782365,15sleep10-21swapper/107:30:501
89712360,1sleep318577-21stress11:17:093
89712360,1sleep318577-21stress11:17:083
58922365,11sleep00-21swapper/007:23:220
3127799369,24cyclictest0-21swapper/308:30:163
3127799369,24cyclictest0-21swapper/308:15:253
3127799366,27cyclictest18579-21stress10:30:393
3127799366,27cyclictest0-21swapper/307:40:173
3127799366,26cyclictest18577-21stress09:41:453
3127799366,26cyclictest18577-21stress09:41:453
3127799364,29cyclictest18579-21stress10:10:123
3127799363,5cyclictest18579-21stress09:35:283
3127799363,5cyclictest18577-21stress10:23:563
3127799363,14cyclictest0-21swapper/307:17:133
3127799362,32cyclictest18577-21stress09:45:203
31277993618,16cyclictest0-21swapper/311:50:283
3127599369,24cyclictest0-21swapper/109:10:151
3127599369,24cyclictest0-21swapper/109:10:151
31275993612,15cyclictest0-21swapper/112:12:481
3127499366,20cyclictest0-21swapper/007:35:210
31274993613,21cyclictest0-21swapper/010:40:160
31274993612,21cyclictest0-21swapper/010:00:110
31274993612,21cyclictest0-21swapper/010:00:110
230422365,14sleep00-21swapper/008:04:130
207702365,15sleep10-21swapper/107:57:351
143372365,12sleep20-21swapper/207:42:052
141502365,16sleep00-21swapper/008:59:060
37772355,14sleep10-21swapper/107:18:471
315412355,11sleep00-21swapper/008:23:540
3127799357,25cyclictest7954-21grep10:00:143
3127799357,25cyclictest7954-21grep10:00:133
3127799357,25cyclictest0-21swapper/309:05:133
3127799356,26cyclictest18577-21stress11:23:393
3127799356,26cyclictest18328-21ls07:50:233
3127799356,26cyclictest0-21swapper/308:10:243
3127799355,3cyclictest18577-21stress11:25:183
3127799355,27cyclictest18577-21stress12:35:293
3127799355,27cyclictest18577-21stress12:35:293
3127799355,27cyclictest18577-21stress12:05:123
3127799355,27cyclictest18577-21stress11:49:253
3127799354,13cyclictest0-21swapper/309:00:433
3127799354,13cyclictest0-21swapper/308:57:073
3127799354,13cyclictest0-21swapper/308:50:083
3127799354,13cyclictest0-21swapper/308:45:533
3127799354,13cyclictest0-21swapper/308:35:313
3127799353,29cyclictest0-21swapper/310:56:543
3127799353,29cyclictest0-21swapper/310:56:543
3127799353,29cyclictest0-21swapper/308:05:163
3127799353,29cyclictest0-21swapper/307:25:193
3127799353,16cyclictest0-21swapper/307:48:273
3127799353,16cyclictest0-21swapper/307:48:273
3127799353,14cyclictest0-21swapper/307:59:593
3127799353,14cyclictest0-21swapper/307:32:063
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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