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2025-12-07 - 21:58
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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 Dec 07, 2025 12:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
788211855,23sleep30-21swapper/307:09:183
744211253,20sleep00-21swapper/007:08:480
597211150,56sleep20-21swapper/207:06:572
58629162,24sleep10-21swapper/107:06:471
4942600,1sleep122371-21stress10:45:321
982994215,24cyclictest0-21swapper/009:53:290
985994111,27cyclictest0-21swapper/312:05:133
985994111,27cyclictest0-21swapper/312:02:033
985994011,26cyclictest0-21swapper/311:00:303
98299408,29cyclictest0-21swapper/011:53:450
98299408,29cyclictest0-21swapper/011:53:450
982994016,21cyclictest0-21swapper/010:23:320
985993910,26cyclictest0-21swapper/309:25:463
985993910,26cyclictest0-21swapper/309:25:453
983993911,18cyclictest0-21swapper/111:17:141
983993911,18cyclictest0-21swapper/111:17:131
98299397,29cyclictest0-21swapper/011:41:220
982993914,22cyclictest0-21swapper/009:14:050
98599389,26cyclictest0-21swapper/312:30:253
98599389,26cyclictest0-21swapper/312:30:253
98599389,26cyclictest0-21swapper/310:40:353
98599389,26cyclictest0-21swapper/310:40:343
98599388,27cyclictest0-21swapper/310:50:043
985993811,24cyclictest0-21swapper/311:40:163
98399388,18cyclictest0-21swapper/111:28:021
98299388,27cyclictest0-21swapper/010:41:210
98299388,27cyclictest0-21swapper/010:41:200
98299388,27cyclictest0-21swapper/010:07:260
982993815,21cyclictest0-21swapper/011:58:310
982993813,22cyclictest0-21swapper/009:16:450
982993811,24cyclictest0-21swapper/010:35:250
982993810,25cyclictest0-21swapper/011:06:160
203542385,13sleep10-21swapper/109:05:141
982993716,19cyclictest0-21swapper/011:45:070
982993715,20cyclictest0-21swapper/011:14:100
982993715,20cyclictest0-21swapper/011:14:100
982993715,19cyclictest0-21swapper/010:15:230
982993710,24cyclictest0-21swapper/012:25:270
80432375,13sleep30-21swapper/307:21:513
58582375,13sleep00-21swapper/007:17:050
282122375,13sleep20-21swapper/208:09:482
259032375,13sleep20-21swapper/208:04:032
203822375,13sleep20-21swapper/209:05:302
199702375,13sleep20-21swapper/209:04:142
170552375,13sleep20-21swapper/207:43:462
982993616,17cyclictest0-21swapper/009:20:190
982993615,18cyclictest0-21swapper/011:25:290
982993612,21cyclictest0-21swapper/012:10:180
41962365,12sleep30-21swapper/308:25:343
322962365,13sleep10-21swapper/108:16:131
300792365,13sleep00-21swapper/008:10:590
279232364,13sleep30-21swapper/308:06:173
27692365,13sleep10-21swapper/107:10:531
258452365,13sleep00-21swapper/008:03:170
214062365,13sleep00-21swapper/007:52:540
168122365,13sleep10-21swapper/107:40:441
147922365,13sleep00-21swapper/007:38:120
110052365,13sleep10-21swapper/108:42:481
105012365,13sleep20-21swapper/207:29:512
98599359,23cyclictest0-21swapper/310:20:273
985993514,18cyclictest0-21swapper/309:30:073
984993515,17cyclictest0-21swapper/212:21:532
984993512,20cyclictest0-21swapper/211:30:352
98399358,24cyclictest0-21swapper/112:19:391
982993516,17cyclictest0-21swapper/011:15:080
982993516,17cyclictest0-21swapper/011:15:080
982993516,16cyclictest0-21swapper/012:38:250
982993516,16cyclictest0-21swapper/010:30:360
982993516,16cyclictest0-21swapper/009:35:050
982993515,18cyclictest0-21swapper/009:34:160
982993512,20cyclictest0-21swapper/011:34:560
982993510,22cyclictest0-21swapper/009:40:320
281922355,12sleep10-21swapper/108:09:361
147742354,12sleep30-21swapper/307:37:583
142182355,11sleep10-21swapper/107:35:231
125152355,10sleep20-21swapper/207:32:322
985993411,21cyclictest0-21swapper/312:29:453
984993416,15cyclictest0-21swapper/210:40:022
984993416,15cyclictest0-21swapper/210:40:022
984993413,18cyclictest0-21swapper/211:13:502
984993413,18cyclictest0-21swapper/211:13:492
984993413,18cyclictest0-21swapper/210:58:492
984993411,20cyclictest0-21swapper/212:17:142
984993410,21cyclictest0-21swapper/211:00:182
984993410,21cyclictest0-21swapper/209:17:342
984993410,21cyclictest0-21swapper/209:13:042
983993419,13cyclictest0-21swapper/109:02:461
983993414,17cyclictest0-21swapper/110:17:441
983993411,20cyclictest0-21swapper/109:48:141
98299347,24cyclictest0-21swapper/010:25:340
982993416,15cyclictest0-21swapper/010:00:130
982993416,15cyclictest0-21swapper/010:00:130
86092345,10sleep20-21swapper/208:35:432
79412345,10sleep00-21swapper/007:20:300
302302345,10sleep10-21swapper/108:12:561
258142345,10sleep10-21swapper/108:02:541
212232345,10sleep30-21swapper/307:50:413
98599338,22cyclictest0-21swapper/310:45:383
985993311,19cyclictest0-21swapper/311:55:203
985993310,20cyclictest0-21swapper/309:24:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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