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2026-07-08 - 08:46
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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 Wed Jul 08, 2026 00:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19608211755,23sleep10-21swapper/119:07:411
19608211755,23sleep10-21swapper/119:07:411
19557211452,23sleep30-21swapper/319:07:033
19557211452,23sleep30-21swapper/319:07:033
19556211352,56sleep20-21swapper/219:07:022
19556211352,56sleep20-21swapper/219:07:012
19544210751,51sleep00-21swapper/019:06:520
19544210751,51sleep00-21swapper/019:06:510
19893994313,27cyclictest0-21swapper/021:27:160
280992420,4sleep11989499cyclictest00:20:231
19893994214,25cyclictest0-21swapper/023:48:340
19893994212,27cyclictest0-21swapper/022:24:590
19894994126,13cyclictest0-21swapper/121:36:371
19893994014,23cyclictest0-21swapper/023:55:150
19893994010,27cyclictest0-21swapper/000:12:270
38562395,13sleep20-21swapper/220:55:402
31852390,1sleep18698-21stress00:37:111
19893993915,21cyclictest0-21swapper/022:15:250
19893993914,22cyclictest0-21swapper/021:55:110
19893993911,25cyclictest0-21swapper/023:05:070
36092385,13sleep30-21swapper/319:44:203
1989599385,19cyclictest0-21swapper/223:00:152
1989399387,28cyclictest0-21swapper/023:20:410
19893993815,21cyclictest0-21swapper/021:35:340
19893993815,21cyclictest0-21swapper/021:10:170
19893993814,21cyclictest0-21swapper/022:25:300
19893993810,25cyclictest0-21swapper/021:50:120
100502385,13sleep20-21swapper/219:57:392
80572375,13sleep20-21swapper/219:54:582
57522375,13sleep20-21swapper/219:48:362
40362375,13sleep10-21swapper/120:57:491
36462375,13sleep20-21swapper/219:44:472
314162375,13sleep30-21swapper/319:32:453
297062375,13sleep10-21swapper/120:42:291
19893993711,23cyclictest0-21swapper/023:25:180
123692375,13sleep20-21swapper/220:04:352
121312375,13sleep30-21swapper/320:01:373
120992375,13sleep10-21swapper/120:01:141
33002365,12sleep10-21swapper/119:40:331
22352365,12sleep30-21swapper/320:55:063
1989599367,26cyclictest0-21swapper/223:45:472
1989499369,20cyclictest0-21swapper/119:45:251
19893993614,19cyclictest0-21swapper/023:35:200
19893993613,20cyclictest0-21swapper/022:35:220
19893993613,20cyclictest0-21swapper/022:35:210
19893993613,20cyclictest0-21swapper/021:45:260
19893993612,21cyclictest0-21swapper/022:15:000
62782355,13sleep00-21swapper/021:02:560
61712355,13sleep10-21swapper/121:01:381
231562355,12sleep00-21swapper/020:27:360
208932355,13sleep30-21swapper/320:21:343
19895993512,21cyclictest0-21swapper/220:50:212
1989499359,18cyclictest0-21swapper/120:51:261
1989499358,24cyclictest0-21swapper/122:23:541
19894993513,19cyclictest0-21swapper/100:15:091
19894993512,20cyclictest0-21swapper/122:15:351
19894993510,19cyclictest0-21swapper/119:14:561
1989399358,24cyclictest0-21swapper/023:15:220
19893993517,16cyclictest0-21swapper/020:20:190
19893993515,18cyclictest0-21swapper/022:55:210
19893993510,22cyclictest0-21swapper/021:40:180
79802345,10sleep10-21swapper/119:54:001
298682345,10sleep30-21swapper/320:44:303
275052345,10sleep20-21swapper/220:37:072
211332345,10sleep10-21swapper/120:24:311
1989699347,25cyclictest0-21swapper/320:31:513
19896993415,16cyclictest0-21swapper/322:10:333
19896993411,20cyclictest0-21swapper/300:20:273
19895993416,16cyclictest0-21swapper/222:53:362
1989499348,17cyclictest0-21swapper/122:05:301
1989499348,17cyclictest0-21swapper/122:05:291
1989499347,15cyclictest0-21swapper/120:11:221
19894993419,14cyclictest0-21swapper/121:05:051
19894993410,16cyclictest0-21swapper/120:15:111
1989399349,22cyclictest0-21swapper/022:01:400
1989399348,24cyclictest0-21swapper/023:00:260
1989399348,23cyclictest0-21swapper/021:20:570
19893993413,18cyclictest0-21swapper/021:15:140
19893993411,21cyclictest0-21swapper/022:50:200
188832345,10sleep20-21swapper/220:18:442
187662345,12sleep00-21swapper/020:17:130
100792345,10sleep00-21swapper/019:58:010
41662335,13sleep00-21swapper/020:59:230
293452335,10sleep30-21swapper/319:29:533
19896993316,14cyclictest0-21swapper/322:39:293
19896993316,14cyclictest0-21swapper/322:39:293
19896993310,20cyclictest0-21swapper/321:16:413
1989599339,22cyclictest0-21swapper/221:00:202
19895993311,20cyclictest0-21swapper/220:10:222
19895993311,19cyclictest0-21swapper/221:14:522
1989499339,21cyclictest0-21swapper/123:16:291
1989499338,23cyclictest0-21swapper/120:48:251
1989499338,23cyclictest0-21swapper/120:08:361
1989499336,24cyclictest0-21swapper/122:50:341
19894993314,16cyclictest0-21swapper/123:45:051
19894993313,18cyclictest0-21swapper/122:41:241
19894993313,18cyclictest0-21swapper/122:41:241
1989399339,21cyclictest0-21swapper/022:30:280
1989399339,18cyclictest0-21swapper/021:05:220
19893993319,13cyclictest0-21swapper/019:39:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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