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2025-12-09 - 01:32
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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 Mon Dec 08, 2025 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1679521390,1sleep118777-21stress10:16:161
29686212255,61sleep20-21swapper/207:08:362
29610212157,58sleep30-21swapper/307:07:353
2977629749,43sleep10-21swapper/107:09:421
302032940,1sleep218777-21stress10:48:242
2837329345,41sleep00-21swapper/007:05:160
125052540,3sleep118775-21stress11:20:311
29900994417,20cyclictest0-21swapper/010:26:510
29903994216,23cyclictest0-21swapper/310:18:063
29903994115,23cyclictest0-21swapper/309:38:283
29900994115,23cyclictest0-21swapper/012:11:330
50682407,13sleep20-21swapper/208:35:372
29900994015,22cyclictest0-21swapper/011:39:160
29900994015,22cyclictest0-21swapper/011:39:150
50312398,12sleep20-21swapper/207:25:082
310182398,12sleep20-21swapper/208:21:532
29900993915,21cyclictest0-21swapper/011:27:010
297502397,28sleep10-21swapper/109:34:491
2990399389,26cyclictest0-21swapper/311:16:553
29903993814,21cyclictest0-21swapper/312:15:083
29903993814,21cyclictest0-21swapper/312:15:073
29903993814,21cyclictest0-21swapper/312:06:563
29903993813,22cyclictest0-21swapper/310:20:523
29900993815,20cyclictest0-21swapper/010:40:300
29900993813,22cyclictest0-21swapper/012:15:230
29900993813,22cyclictest0-21swapper/012:15:230
29900993810,25cyclictest0-21swapper/009:35:310
186422385,13sleep30-21swapper/309:09:253
68852375,13sleep00-21swapper/007:29:100
310822375,13sleep30-21swapper/308:22:393
29942375,13sleep20-21swapper/208:32:082
29903993714,20cyclictest0-21swapper/311:38:283
29903993714,20cyclictest0-21swapper/311:38:273
29900993716,18cyclictest0-21swapper/010:03:040
29900993715,15cyclictest0-21swapper/011:18:350
132952375,13sleep20-21swapper/207:41:392
112502375,13sleep30-21swapper/307:38:243
76382365,12sleep20-21swapper/208:44:552
46662365,12sleep00-21swapper/007:24:010
44682364,13sleep30-21swapper/307:21:283
29903993615,18cyclictest0-21swapper/309:58:083
29903993615,18cyclictest0-21swapper/309:58:083
29903993615,18cyclictest0-21swapper/309:30:283
29903993614,20cyclictest0-21swapper/309:20:383
29903993613,20cyclictest0-21swapper/311:42:103
29903993613,20cyclictest0-21swapper/311:42:103
2990199368,25cyclictest0-21swapper/110:44:271
29901993612,12cyclictest0-21swapper/112:05:341
29900993613,20cyclictest0-21swapper/012:05:130
29900993613,20cyclictest0-21swapper/012:01:130
29900993613,20cyclictest0-21swapper/012:01:130
288612365,13sleep10-21swapper/108:16:561
243772365,13sleep10-21swapper/108:06:291
163652365,13sleep10-21swapper/109:03:311
163602364,13sleep30-21swapper/309:03:293
154692364,13sleep20-21swapper/207:45:562
111902365,13sleep10-21swapper/107:37:421
98212355,12sleep10-21swapper/108:49:521
29903993515,18cyclictest0-21swapper/310:10:213
29903993513,19cyclictest0-21swapper/310:30:573
29902993516,16cyclictest0-21swapper/209:45:582
29902993516,16cyclictest0-21swapper/209:45:582
29900993515,18cyclictest0-21swapper/012:25:160
29900993515,17cyclictest0-21swapper/010:25:010
29900993513,20cyclictest0-21swapper/010:35:260
29900993512,20cyclictest0-21swapper/009:50:310
29900993512,20cyclictest0-21swapper/009:50:310
29900993511,22cyclictest0-21swapper/010:50:310
29900993511,21cyclictest0-21swapper/012:35:210
29900993510,22cyclictest0-21swapper/009:15:250
29900993510,22cyclictest0-21swapper/009:15:250
24222355,13sleep20-21swapper/207:18:222
223962355,12sleep10-21swapper/108:03:481
186722354,13sleep10-21swapper/109:09:471
184012354,12sleep20-21swapper/209:06:372
156122354,13sleep30-21swapper/307:47:433
119782354,13sleep10-21swapper/108:54:131
66862344,12sleep10-21swapper/107:26:471
54162343,13sleep10-21swapper/108:39:441
29903993415,16cyclictest0-21swapper/310:01:233
29903993414,17cyclictest0-21swapper/311:25:323
29903993414,17cyclictest0-21swapper/309:25:223
29903993411,20cyclictest0-21swapper/312:28:593
29903993410,21cyclictest0-21swapper/312:14:523
29902993411,20cyclictest0-21swapper/210:05:372
29901993410,21cyclictest0-21swapper/109:52:131
29901993410,21cyclictest0-21swapper/109:52:121
2990099349,22cyclictest0-21swapper/010:05:240
2990099348,23cyclictest0-21swapper/011:20:050
29900993414,17cyclictest0-21swapper/010:45:180
29900993414,17cyclictest0-21swapper/009:55:120
29900993414,17cyclictest0-21swapper/009:55:120
29900993413,19cyclictest0-21swapper/012:20:260
29900993412,20cyclictest0-21swapper/011:40:140
29900993412,20cyclictest0-21swapper/011:40:140
249282344,13sleep30-21swapper/308:10:043
249282344,13sleep30-21swapper/308:10:033
21752343,13sleep10-21swapper/107:15:251
199652345,12sleep10-21swapper/107:56:501
199372344,12sleep00-21swapper/007:56:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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