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2026-05-18 - 11:14
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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 May 18, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14117212664,56sleep30-21swapper/319:09:103
14136211859,20sleep20-21swapper/219:09:272
14109211150,56sleep10-21swapper/119:09:041
1391129749,43sleep00-21swapper/019:06:390
14285994411,30cyclictest0-21swapper/000:00:110
14285994311,29cyclictest0-21swapper/021:22:270
1428599429,30cyclictest0-21swapper/023:44:140
1428599428,31cyclictest0-21swapper/023:31:150
14285994217,19cyclictest0-21swapper/022:11:550
14285994213,26cyclictest0-21swapper/021:25:440
14285994213,26cyclictest0-21swapper/021:25:430
1428599407,30cyclictest0-21swapper/023:29:330
14285994017,15cyclictest0-21swapper/021:56:220
14285994017,15cyclictest0-21swapper/021:56:220
14285994013,19cyclictest0-21swapper/022:20:020
14285994011,26cyclictest0-21swapper/023:46:410
14285994010,27cyclictest0-21swapper/022:25:220
14285994010,27cyclictest0-21swapper/000:11:410
14287993915,21cyclictest0-21swapper/222:49:412
14287993914,22cyclictest0-21swapper/222:39:362
14287993914,22cyclictest0-21swapper/222:39:362
14287993913,23cyclictest0-21swapper/221:13:242
14285993911,25cyclictest0-21swapper/023:00:280
14285993911,25cyclictest0-21swapper/021:10:220
270002385,13sleep20-21swapper/220:50:202
237412385,13sleep20-21swapper/220:44:332
193302385,13sleep20-21swapper/219:19:562
1428799389,26cyclictest0-21swapper/223:11:232
1428799389,26cyclictest0-21swapper/223:11:222
1428799389,26cyclictest0-21swapper/222:04:452
1428799389,26cyclictest0-21swapper/222:04:452
1428799385,24cyclictest0-21swapper/220:45:132
1428799385,24cyclictest0-21swapper/220:45:132
14287993816,19cyclictest0-21swapper/200:35:032
14287993814,21cyclictest0-21swapper/223:15:102
14287993814,21cyclictest0-21swapper/200:20:192
14287993810,25cyclictest0-21swapper/223:56:432
14287993810,25cyclictest0-21swapper/223:56:422
14287993810,25cyclictest0-21swapper/222:09:152
14285993816,19cyclictest0-21swapper/023:20:050
14285993811,25cyclictest0-21swapper/023:50:120
14285993811,25cyclictest0-21swapper/023:50:120
105722385,13sleep20-21swapper/220:12:132
326152375,13sleep30-21swapper/319:50:093
20712375,13sleep20-21swapper/221:08:192
1428799379,25cyclictest0-21swapper/221:20:072
1428799377,27cyclictest0-21swapper/221:19:062
14287993716,18cyclictest0-21swapper/200:16:292
14287993715,19cyclictest0-21swapper/221:30:162
14287993715,19cyclictest0-21swapper/221:30:162
14287993711,23cyclictest0-21swapper/222:19:042
14287993711,23cyclictest0-21swapper/222:19:042
14287993710,23cyclictest0-21swapper/221:39:592
14286993715,12cyclictest0-21swapper/123:00:201
1428599375,29cyclictest0-21swapper/022:00:360
1428599375,29cyclictest0-21swapper/022:00:350
132182375,13sleep20-21swapper/220:20:072
40712365,12sleep20-21swapper/219:57:172
305172365,12sleep30-21swapper/321:00:063
153882365,13sleep10-21swapper/120:25:031
14287993615,18cyclictest0-21swapper/223:40:242
14287993615,18cyclictest0-21swapper/222:50:062
14287993614,19cyclictest0-21swapper/200:30:182
14287993611,23cyclictest0-21swapper/221:00:232
14287993611,22cyclictest0-21swapper/223:00:482
14286993613,20cyclictest0-21swapper/123:21:371
1428599367,26cyclictest0-21swapper/000:00:010
1428599367,26cyclictest0-21swapper/000:00:010
14285993615,14cyclictest0-21swapper/022:15:140
14285993615,14cyclictest0-21swapper/022:15:140
14285993613,20cyclictest0-21swapper/022:55:170
105862365,13sleep10-21swapper/120:12:241
322592355,11sleep20-21swapper/219:49:072
299852355,13sleep30-21swapper/319:43:233
274552355,13sleep30-21swapper/320:50:243
257342355,12sleep00-21swapper/019:33:540
256792355,12sleep10-21swapper/120:46:461
256792355,12sleep10-21swapper/120:46:451
256182355,12sleep20-21swapper/219:32:232
235642354,12sleep00-21swapper/019:28:440
215732354,12sleep00-21swapper/020:39:230
212302355,12sleep10-21swapper/119:21:371
19822355,12sleep30-21swapper/321:07:173
149632354,12sleep00-21swapper/020:23:020
148452355,12sleep10-21swapper/120:21:421
14288993513,19cyclictest0-21swapper/321:49:303
1428799358,24cyclictest0-21swapper/221:45:472
14287993512,20cyclictest0-21swapper/221:50:082
14287993510,22cyclictest0-21swapper/200:14:142
14286993513,19cyclictest0-21swapper/100:21:131
14285993515,18cyclictest0-21swapper/000:28:300
14285993515,18cyclictest0-21swapper/000:28:290
64332345,10sleep20-21swapper/220:04:242
278212345,12sleep10-21swapper/120:51:461
257562344,12sleep00-21swapper/020:47:440
257562344,12sleep00-21swapper/020:47:440
214672344,12sleep00-21swapper/019:24:310
161562345,10sleep30-21swapper/319:11:553
14288993412,19cyclictest0-21swapper/323:40:543
1428799345,22cyclictest0-21swapper/220:18:382
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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