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2026-04-22 - 07:17
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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 Apr 22, 2026 00:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27102211651,58sleep30-21swapper/319:05:173
28138211551,23sleep10-21swapper/119:07:121
28283211355,53sleep20-21swapper/219:09:062
28303210851,22sleep00-21swapper/019:09:200
2447621070,1sleep216164-21stress21:27:242
269232980,3sleep316163-21stress21:35:013
28453996115,26cyclictest0-21swapper/022:37:050
2845499456,36cyclictest0-21swapper/123:30:291
2845499419,29cyclictest0-21swapper/100:15:391
2845499419,29cyclictest0-21swapper/100:15:391
28455994010,27cyclictest0-21swapper/222:02:312
2845499398,28cyclictest0-21swapper/122:07:211
2845499398,28cyclictest0-21swapper/121:35:531
2410123910,14sleep20-21swapper/223:57:422
28455993811,24cyclictest0-21swapper/223:24:362
2845499388,20cyclictest0-21swapper/123:17:151
2845499387,28cyclictest0-21swapper/122:28:041
28453993810,16cyclictest0-21swapper/000:05:320
28456993710,24cyclictest0-21swapper/321:24:443
28456993710,24cyclictest0-21swapper/321:24:443
28455993714,21cyclictest0-21swapper/222:24:202
2845499376,28cyclictest0-21swapper/100:10:231
28454993712,22cyclictest0-21swapper/121:46:421
28454993712,22cyclictest0-21swapper/121:46:421
159612375,12sleep20-21swapper/221:08:272
95952365,12sleep10-21swapper/119:38:121
72642365,12sleep20-21swapper/219:30:552
7102365,12sleep30-21swapper/320:32:153
2845699367,26cyclictest0-21swapper/322:18:003
28456993614,19cyclictest0-21swapper/322:54:573
28456993614,19cyclictest0-21swapper/300:17:583
28456993614,19cyclictest0-21swapper/300:17:583
28456993612,21cyclictest0-21swapper/300:20:533
28456993611,23cyclictest0-21swapper/322:45:273
28456993610,24cyclictest0-21swapper/322:31:223
28456993610,23cyclictest0-21swapper/322:09:053
28455993614,19cyclictest0-21swapper/221:52:052
28455993614,19cyclictest0-21swapper/221:52:052
28455993611,22cyclictest0-21swapper/221:47:262
28455993611,22cyclictest0-21swapper/221:47:262
28455993610,23cyclictest0-21swapper/221:12:502
28455993610,23cyclictest0-21swapper/221:12:502
28453993612,21cyclictest0-21swapper/000:14:170
97142355,11sleep20-21swapper/219:39:412
96682355,11sleep30-21swapper/319:39:063
93052354,12sleep10-21swapper/120:50:541
73662355,12sleep30-21swapper/320:48:273
293222354,12sleep30-21swapper/320:25:103
28456993513,19cyclictest0-21swapper/323:45:303
28456993511,21cyclictest0-21swapper/300:00:343
2845599359,15cyclictest0-21swapper/222:55:522
28455993514,18cyclictest0-21swapper/222:47:022
28455993511,22cyclictest0-21swapper/221:56:002
28455993510,22cyclictest0-21swapper/222:30:172
2845499359,23cyclictest0-21swapper/123:35:061
28454993516,16cyclictest0-21swapper/123:20:261
28454993515,17cyclictest0-21swapper/100:30:161
28454993512,20cyclictest0-21swapper/122:40:301
28453993511,21cyclictest0-21swapper/021:28:280
28453993511,21cyclictest0-21swapper/000:02:220
28453993510,22cyclictest0-21swapper/023:39:280
183062355,13sleep10-21swapper/119:59:331
180482355,11sleep20-21swapper/219:56:182
116572355,11sleep20-21swapper/220:58:282
93832344,12sleep30-21swapper/320:51:523
52612345,11sleep10-21swapper/119:28:011
30542345,11sleep30-21swapper/319:22:303
29672344,11sleep10-21swapper/119:21:281
287932343,12sleep20-21swapper/220:21:442
2845699348,24cyclictest0-21swapper/323:50:283
28456993413,18cyclictest0-21swapper/321:37:053
28456993412,19cyclictest0-21swapper/300:10:333
28456993410,21cyclictest0-21swapper/322:00:333
2845599349,22cyclictest0-21swapper/222:10:212
2845599349,22cyclictest0-21swapper/221:33:342
2845599349,22cyclictest0-21swapper/200:10:362
2845599349,15cyclictest0-21swapper/221:35:192
28455993411,20cyclictest0-21swapper/200:35:482
2845499349,22cyclictest0-21swapper/123:55:241
2845499348,23cyclictest0-21swapper/121:20:581
2845499348,23cyclictest0-21swapper/121:20:581
2845499348,13cyclictest0-21swapper/120:30:381
28454993416,15cyclictest0-21swapper/123:25:141
28454993412,19cyclictest0-21swapper/100:20:081
28454993411,20cyclictest0-21swapper/100:26:491
2845399346,25cyclictest0-21swapper/023:50:150
28453993417,15cyclictest0-21swapper/020:30:060
28453993416,16cyclictest0-21swapper/022:20:160
28453993415,16cyclictest0-21swapper/022:40:100
28453993415,16cyclictest0-21swapper/021:30:030
28453993411,20cyclictest0-21swapper/023:56:250
28453993411,18cyclictest0-21swapper/020:35:230
28453993410,22cyclictest0-21swapper/019:24:570
28453993410,18cyclictest0-21swapper/019:50:020
182312345,11sleep30-21swapper/319:58:353
136022344,11sleep20-21swapper/221:01:022
121592343,12sleep10-21swapper/119:45:101
116632345,11sleep30-21swapper/320:58:343
51382335,11sleep10-21swapper/120:42:481
2845699339,21cyclictest0-21swapper/323:35:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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