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2026-05-22 - 11:35
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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 Fri May 22, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3597212155,18sleep20-21swapper/219:08:582
3609212058,23sleep30-21swapper/319:09:073
3520211351,23sleep10-21swapper/119:08:001
3328211352,23sleep00-21swapper/019:05:390
3782994115,23cyclictest0-21swapper/123:21:041
3782994115,23cyclictest0-21swapper/123:09:351
3782994115,23cyclictest0-21swapper/123:09:351
3782994023,15cyclictest0-21swapper/123:16:051
3782994010,27cyclictest0-21swapper/122:30:431
3782994010,27cyclictest0-21swapper/122:30:431
378399397,29cyclictest0-21swapper/200:21:152
3783993911,25cyclictest0-21swapper/222:41:252
3782993911,25cyclictest0-21swapper/100:14:301
3781993915,21cyclictest0-21swapper/022:09:440
205012395,13sleep00-21swapper/021:00:160
66562385,13sleep20-21swapper/220:27:462
85352374,13sleep20-21swapper/219:16:152
3782993715,20cyclictest0-21swapper/122:45:351
3782993710,24cyclictest0-21swapper/123:10:091
3782993710,24cyclictest0-21swapper/123:10:081
378199376,22cyclictest0-21swapper/021:20:350
3781993720,16cyclictest0-21swapper/020:55:050
3781993720,11cyclictest0-21swapper/020:31:450
3781993720,11cyclictest0-21swapper/020:31:450
3781993717,18cyclictest0-21swapper/023:34:500
304312375,13sleep00-21swapper/020:09:430
304082375,13sleep20-21swapper/220:09:252
281212375,13sleep00-21swapper/020:02:580
280682374,13sleep20-21swapper/220:02:162
239862375,13sleep00-21swapper/021:08:170
216922374,13sleep20-21swapper/221:01:372
175842375,13sleep30-21swapper/320:54:093
171622375,13sleep30-21swapper/319:35:583
107792375,12sleep30-21swapper/319:22:153
98152365,11sleep10-21swapper/120:35:151
98152365,11sleep10-21swapper/120:35:151
378399368,25cyclictest0-21swapper/200:29:062
3783993610,23cyclictest0-21swapper/200:17:252
3783993610,23cyclictest0-21swapper/200:17:242
3782993614,20cyclictest0-21swapper/122:05:041
3782993614,20cyclictest0-21swapper/121:17:241
3782993610,23cyclictest0-21swapper/122:55:091
3781993610,18cyclictest0-21swapper/022:33:560
3781993610,18cyclictest0-21swapper/022:33:560
325032365,13sleep00-21swapper/020:13:000
240492365,10sleep20-21swapper/221:09:082
237862364,13sleep20-21swapper/219:52:372
237022365,12sleep30-21swapper/319:51:383
21382365,12sleep30-21swapper/320:16:323
194842365,12sleep30-21swapper/319:43:003
174392365,13sleep10-21swapper/120:52:221
152802365,13sleep20-21swapper/220:47:432
131902365,12sleep20-21swapper/220:43:492
108852365,13sleep00-21swapper/020:36:500
108852365,13sleep00-21swapper/020:36:500
108252365,12sleep30-21swapper/320:36:053
108252365,12sleep30-21swapper/320:36:053
43952355,10sleep20-21swapper/220:21:532
3784993511,21cyclictest0-21swapper/300:33:393
3783993514,19cyclictest0-21swapper/200:01:252
3783993514,18cyclictest0-21swapper/223:10:432
3783993514,18cyclictest0-21swapper/223:10:432
3782993515,18cyclictest0-21swapper/123:57:571
3782993514,19cyclictest0-21swapper/122:15:541
3782993514,19cyclictest0-21swapper/121:50:221
3782993514,18cyclictest0-21swapper/100:25:241
3782993512,21cyclictest0-21swapper/121:40:301
3781993522,12cyclictest0-21swapper/019:50:190
3781993521,12cyclictest0-21swapper/019:45:360
3781993514,18cyclictest0-21swapper/022:20:210
237952355,12sleep30-21swapper/321:06:013
193562355,10sleep20-21swapper/219:41:222
193222355,12sleep00-21swapper/019:40:560
152452355,12sleep00-21swapper/019:34:070
152302355,12sleep30-21swapper/319:33:573
42922345,10sleep00-21swapper/020:20:420
3784993413,18cyclictest0-21swapper/323:46:413
378399349,22cyclictest0-21swapper/222:36:592
378399349,22cyclictest0-21swapper/222:36:582
378399349,22cyclictest0-21swapper/221:30:062
3783993411,20cyclictest0-21swapper/221:47:092
3783993411,20cyclictest0-21swapper/200:39:492
378299345,17cyclictest0-21swapper/119:35:211
3782993414,18cyclictest0-21swapper/123:00:171
3782993414,18cyclictest0-21swapper/123:00:171
3782993412,20cyclictest0-21swapper/121:45:171
3782993412,20cyclictest0-21swapper/121:20:261
3782993412,19cyclictest0-21swapper/122:50:101
3782993410,21cyclictest0-21swapper/123:27:351
3782993410,21cyclictest0-21swapper/121:35:291
378199348,24cyclictest0-21swapper/020:47:080
3781993414,9cyclictest0-21swapper/023:10:210
3781993414,9cyclictest0-21swapper/023:10:210
3781993410,19cyclictest0-21swapper/020:19:430
325842345,12sleep30-21swapper/320:14:043
302772345,10sleep30-21swapper/320:07:463
153952345,10sleep30-21swapper/320:49:123
130282345,10sleep30-21swapper/320:41:553
378499337,23cyclictest0-21swapper/321:17:303
3784993315,15cyclictest0-21swapper/323:06:563
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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