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2026-03-21 - 15:06
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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 Sat Mar 21, 2026 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19119211854,59sleep10-21swapper/107:07:571
19028211352,23sleep00-21swapper/007:06:470
1925029469,20sleep20-21swapper/207:09:382
1913229466,23sleep30-21swapper/307:08:073
51912395,13sleep30-21swapper/309:05:163
19381993915,22cyclictest0-21swapper/109:36:141
19381993911,26cyclictest0-21swapper/110:47:211
263712385,13sleep20-21swapper/207:23:342
19382993816,19cyclictest0-21swapper/209:29:452
1938099388,19cyclictest0-21swapper/007:55:050
1938099388,18cyclictest0-21swapper/008:41:000
1938099388,18cyclictest0-21swapper/008:14:010
19380993818,14cyclictest0-21swapper/007:49:300
19380993813,22cyclictest0-21swapper/010:55:070
19380993813,22cyclictest0-21swapper/010:55:060
67042375,13sleep10-21swapper/107:52:241
67042375,13sleep10-21swapper/107:52:241
41862375,12sleep20-21swapper/209:02:222
327312375,13sleep30-21swapper/307:38:183
282052375,13sleep10-21swapper/108:44:291
258862375,13sleep30-21swapper/308:36:533
238002374,13sleep20-21swapper/208:32:272
23262375,13sleep20-21swapper/207:41:422
21562375,13sleep30-21swapper/308:59:013
213202375,13sleep10-21swapper/107:13:061
1938099378,27cyclictest0-21swapper/007:37:230
1938099378,26cyclictest0-21swapper/008:20:300
89712365,13sleep30-21swapper/307:59:003
67262365,13sleep00-21swapper/007:52:390
67262365,13sleep00-21swapper/007:52:390
64322364,13sleep20-21swapper/209:08:272
322992365,13sleep00-21swapper/008:52:180
302852365,13sleep20-21swapper/208:48:512
281152365,12sleep30-21swapper/308:43:183
263632365,13sleep00-21swapper/007:23:280
258842365,12sleep10-21swapper/108:36:511
215692365,12sleep30-21swapper/308:26:053
19382993615,18cyclictest0-21swapper/210:30:392
19381993610,23cyclictest0-21swapper/110:25:061
1938099368,26cyclictest0-21swapper/008:55:100
1938099367,19cyclictest0-21swapper/007:10:050
1938099366,21cyclictest0-21swapper/009:03:020
1938099365,28cyclictest0-21swapper/011:25:120
1938099365,28cyclictest0-21swapper/011:25:110
19380993615,18cyclictest0-21swapper/011:12:500
324242355,12sleep10-21swapper/108:53:511
257722355,10sleep20-21swapper/208:35:262
236682355,10sleep30-21swapper/308:30:473
1938299359,23cyclictest0-21swapper/210:48:242
19382993516,17cyclictest0-21swapper/209:21:142
19382993516,16cyclictest0-21swapper/211:22:532
19382993516,16cyclictest0-21swapper/210:00:062
19382993512,20cyclictest0-21swapper/211:33:442
19382993511,21cyclictest0-21swapper/211:43:092
19382993511,21cyclictest0-21swapper/211:05:282
19382993511,21cyclictest0-21swapper/209:11:202
1938099355,20cyclictest0-21swapper/009:05:170
19380993520,13cyclictest0-21swapper/007:15:060
19380993516,16cyclictest0-21swapper/012:39:310
19380993516,16cyclictest0-21swapper/011:20:190
19380993515,17cyclictest0-21swapper/009:34:310
19380993514,18cyclictest0-21swapper/012:08:340
19380993514,18cyclictest0-21swapper/012:08:330
153262355,10sleep20-21swapper/208:13:262
114592355,13sleep10-21swapper/108:05:111
110102355,12sleep10-21swapper/108:02:451
87652345,10sleep20-21swapper/207:56:262
306212345,10sleep10-21swapper/107:33:311
304202345,10sleep20-21swapper/207:30:592
301932345,10sleep10-21swapper/108:47:411
261712345,10sleep30-21swapper/307:20:583
211652344,10sleep20-21swapper/207:11:112
19383993411,20cyclictest0-21swapper/311:02:543
1938299347,24cyclictest0-21swapper/212:09:382
1938299347,24cyclictest0-21swapper/212:09:372
19382993417,14cyclictest0-21swapper/211:16:112
19382993416,15cyclictest0-21swapper/212:01:492
19382993416,15cyclictest0-21swapper/211:28:162
19382993416,15cyclictest0-21swapper/211:28:162
19382993416,15cyclictest0-21swapper/210:17:582
19382993416,15cyclictest0-21swapper/210:17:572
19382993416,15cyclictest0-21swapper/209:17:292
19382993411,20cyclictest0-21swapper/211:10:252
19382993411,20cyclictest0-21swapper/210:59:422
19382993411,20cyclictest0-21swapper/210:59:412
19382993411,20cyclictest0-21swapper/209:42:062
19382993411,20cyclictest0-21swapper/209:42:062
19381993410,21cyclictest0-21swapper/111:35:261
1938099348,23cyclictest0-21swapper/012:04:090
1938099347,24cyclictest0-21swapper/011:30:240
1938099345,19cyclictest0-21swapper/008:35:060
1938099345,19cyclictest0-21swapper/008:09:010
1938099345,16cyclictest0-21swapper/007:41:460
19380993419,14cyclictest0-21swapper/007:31:350
19380993414,17cyclictest0-21swapper/009:39:270
172972345,10sleep10-21swapper/108:16:141
132362344,12sleep20-21swapper/208:09:012
217002334,10sleep20-21swapper/208:27:502
20292335,10sleep10-21swapper/108:57:271
19383993317,13cyclictest0-21swapper/309:59:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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