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2026-04-07 - 13:26
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot0.osadl.org (updated Tue Apr 07, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2802321170,0sleep50-21swapper/512:28:385
2883121070,0sleep70-21swapper/711:43:207
3153421020,1sleep10-21swapper/107:05:101
28522790,0sleep20-21swapper/212:15:522
65932780,4sleep7133699cyclictest10:55:057
256892770,0sleep20-21swapper/209:18:422
256892770,0sleep20-21swapper/209:18:422
175142770,1sleep20-21swapper/211:41:402
71392730,2sleep40-21swapper/410:00:514
86372720,0sleep10-21swapper/110:01:051
11362720,0sleep20-21swapper/210:27:112
28502710,1sleep081ktimersoftd/010:36:210
136002690,0sleep10-21swapper/109:35:011
136002690,0sleep10-21swapper/109:35:011
106692680,0sleep10-21swapper/111:36:101
78802670,0sleep50-21swapper/509:16:065
78802670,0sleep50-21swapper/509:16:065
223192670,0sleep70-21swapper/712:00:277
320642660,0sleep00-21swapper/009:46:210
293312650,0sleep40-21swapper/409:23:424
293312650,0sleep40-21swapper/409:23:414
86326039,6sleep30-21swapper/307:07:543
316692600,0sleep00-21swapper/009:37:230
79012560,0sleep00-21swapper/010:50:320
85825544,7sleep70-21swapper/707:07:507
64125141,6sleep50-21swapper/507:05:395
61425140,7sleep40-21swapper/407:05:224
61924636,6sleep00-21swapper/007:05:260
82824231,7sleep60-21swapper/607:07:256
88824131,6sleep20-21swapper/207:08:102
39522410,1sleep10-21swapper/112:07:031
93382250,4sleep0129199cyclictest09:52:140
187622230,0sleep50-21swapper/512:09:155
259932220,4sleep5132499cyclictest10:08:075
130399223,12cyclictest0-21swapper/207:24:382
130399222,13cyclictest0-21swapper/212:08:332
77672210,0sleep60-21swapper/611:13:146
44392210,0sleep70-21swapper/710:27:397
130399211,13cyclictest0-21swapper/207:40:022
129199210,2cyclictest0-21swapper/008:32:480
229912200,1sleep6671rcuc/609:40:346
130399200,8cyclictest0-21swapper/209:03:292
130399200,13cyclictest0-21swapper/210:30:342
130399200,13cyclictest0-21swapper/208:55:052
130399200,13cyclictest0-21swapper/208:37:142
130399200,13cyclictest0-21swapper/208:30:522
130399200,13cyclictest0-21swapper/208:14:032
130399200,13cyclictest0-21swapper/207:34:142
130399200,12cyclictest0-21swapper/211:54:172
129199200,1cyclictest0-21swapper/008:42:080
129199200,1cyclictest0-21swapper/008:38:000
126902200,1sleep50-21swapper/509:25:435
126902200,1sleep50-21swapper/509:25:435
99812190,0sleep6671rcuc/610:46:216
86942190,0sleep40-21swapper/411:40:204
85362190,1sleep10-21swapper/108:30:111
84842190,1sleep10-21swapper/110:37:111
326212190,1sleep00-21swapper/012:24:490
205832190,0sleep70-21swapper/709:35:467
130399190,12cyclictest0-21swapper/211:35:022
130399190,12cyclictest0-21swapper/210:20:202
130399190,12cyclictest0-21swapper/207:51:422
130399190,11cyclictest0-21swapper/207:15:432
106052190,0sleep20-21swapper/212:12:322
189832180,1sleep7771ktimersoftd/709:40:117
132999180,17cyclictest0-21swapper/612:08:026
130399183,12cyclictest0-21swapper/208:22:592
130399182,12cyclictest0-21swapper/211:26:212
22782170,1sleep02281-21kernelversion07:10:140
172012170,1sleep417204-21latency_hist09:40:004
1329991711,5cyclictest0-21swapper/611:54:246
132999170,16cyclictest0-21swapper/609:16:106
132999170,16cyclictest0-21swapper/609:16:106
130399175,5cyclictest0-21swapper/207:55:162
130399173,12cyclictest0-21swapper/207:13:462
130399172,13cyclictest0-21swapper/212:25:052
130399172,12cyclictest0-21swapper/210:51:552
130399172,12cyclictest0-21swapper/210:12:542
130399172,12cyclictest0-21swapper/208:49:472
130399172,12cyclictest0-21swapper/208:08:312
130399170,9cyclictest0-21swapper/210:40:222
130399170,16cyclictest0-21swapper/209:54:532
61852160,1sleep00-21swapper/008:25:130
56942160,0sleep60-21swapper/608:25:116
27602160,1sleep7771ktimersoftd/712:06:527
223352160,1sleep2321ktimersoftd/210:03:062
191262160,0sleep00-21swapper/009:31:060
191262160,0sleep00-21swapper/009:31:060
132999160,5cyclictest8774-21sshd12:21:176
132999160,15cyclictest0-21swapper/611:42:406
132999160,15cyclictest0-21swapper/610:52:356
132999160,15cyclictest0-21swapper/609:47:076
132999160,14cyclictest0-21swapper/611:31:296
131599160,14cyclictest0-21swapper/411:25:374
130399163,7cyclictest0-21swapper/209:13:312
130399163,7cyclictest0-21swapper/209:13:312
130399163,12cyclictest0-21swapper/212:30:272
130399163,12cyclictest0-21swapper/212:30:272
130399163,12cyclictest0-21swapper/211:30:292
130399163,12cyclictest0-21swapper/209:27:532
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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