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2026-06-13 - 09:50
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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 Sat Jun 13, 2026 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1982521260,1sleep14389-21stress00:13:111
15842211654,23sleep30-21swapper/319:09:363
15577211651,24sleep10-21swapper/119:06:241
15788211456,21sleep20-21swapper/219:08:582
15584211351,57sleep00-21swapper/019:06:270
15979995014,25cyclictest0-21swapper/100:35:201
15979995014,25cyclictest0-21swapper/100:35:201
15978994922,18cyclictest0-21swapper/000:25:220
15978994922,18cyclictest0-21swapper/000:25:220
15978994913,25cyclictest0-21swapper/000:30:150
15978994913,25cyclictest0-21swapper/000:30:150
1597899468,27cyclictest0-21swapper/022:36:590
15979994516,19cyclictest0-21swapper/122:45:111
15979994516,19cyclictest0-21swapper/122:45:111
15979994515,20cyclictest0-21swapper/123:12:211
1597899458,22cyclictest0-21swapper/023:50:110
15978994511,24cyclictest0-21swapper/021:45:240
1597899448,24cyclictest0-21swapper/022:40:140
1597899439,23cyclictest0-21swapper/023:05:140
213442420,1sleep14384-21stress21:45:451
15981994213,26cyclictest0-21swapper/322:19:073
15981994213,26cyclictest0-21swapper/322:19:073
15978994221,18cyclictest0-21swapper/021:30:560
15978994213,23cyclictest0-21swapper/019:35:190
15981994111,27cyclictest0-21swapper/323:40:363
15979994110,21cyclictest0-21swapper/122:21:471
15979994110,15cyclictest0-21swapper/100:26:391
15979994110,15cyclictest0-21swapper/100:26:381
15981994011,26cyclictest0-21swapper/321:26:583
1597999408,21cyclictest0-21swapper/100:15:201
1597899409,21cyclictest0-21swapper/021:35:320
1597899408,20cyclictest0-21swapper/023:35:240
1598199399,27cyclictest0-21swapper/322:33:393
15980993914,22cyclictest0-21swapper/222:34:152
15979993919,15cyclictest0-21swapper/119:25:231
15978993920,13cyclictest0-21swapper/019:45:050
41362385,13sleep30-21swapper/321:08:003
41362385,13sleep30-21swapper/321:08:003
299322385,13sleep30-21swapper/320:53:333
177742385,13sleep30-21swapper/319:10:483
1598199389,26cyclictest0-21swapper/323:45:043
15981993815,21cyclictest0-21swapper/300:20:213
15981993814,22cyclictest0-21swapper/323:30:133
15981993810,25cyclictest0-21swapper/322:55:343
15980993815,20cyclictest0-21swapper/222:55:372
15980993814,21cyclictest0-21swapper/222:40:412
1597899387,20cyclictest0-21swapper/023:15:200
1597899385,24cyclictest0-21swapper/020:05:210
15978993811,21cyclictest0-21swapper/019:30:060
46932370,3sleep04389-21stress21:10:140
320142375,12sleep30-21swapper/320:56:423
251142375,13sleep30-21swapper/319:26:393
167372375,13sleep30-21swapper/320:21:133
15981993714,20cyclictest0-21swapper/321:48:493
1598099377,27cyclictest0-21swapper/222:29:502
15980993713,12cyclictest0-21swapper/223:00:082
1597999375,20cyclictest0-21swapper/119:30:181
15979993719,15cyclictest0-21swapper/123:55:271
15979993719,15cyclictest0-21swapper/123:55:271
1597899375,22cyclictest0-21swapper/020:40:180
1597899375,21cyclictest0-21swapper/023:25:130
1597899375,21cyclictest0-21swapper/020:30:140
15978993720,14cyclictest0-21swapper/000:00:230
15978993710,21cyclictest0-21swapper/020:25:250
146192375,13sleep30-21swapper/320:17:283
124632375,13sleep30-21swapper/320:12:393
58792365,13sleep20-21swapper/219:56:382
325702365,13sleep30-21swapper/321:00:063
321212365,13sleep20-21swapper/220:58:012
234902365,13sleep20-21swapper/220:39:282
230252365,10sleep30-21swapper/319:22:423
230252365,10sleep30-21swapper/319:22:423
207382365,10sleep30-21swapper/319:16:293
20292365,13sleep20-21swapper/221:04:342
16822365,13sleep20-21swapper/219:49:362
15980993614,19cyclictest0-21swapper/223:55:122
15980993614,19cyclictest0-21swapper/223:55:112
1597999367,21cyclictest0-21swapper/119:45:011
1597899369,17cyclictest0-21swapper/023:46:050
1597899366,22cyclictest0-21swapper/019:55:020
1597899366,19cyclictest0-21swapper/000:35:340
1597899366,19cyclictest0-21swapper/000:35:330
1597899365,23cyclictest0-21swapper/020:10:110
1597899365,19cyclictest0-21swapper/021:00:110
15978993617,17cyclictest0-21swapper/022:25:350
15978993611,17cyclictest0-21swapper/020:36:300
15978993610,18cyclictest0-21swapper/020:45:050
39222355,10sleep30-21swapper/319:54:303
319762355,12sleep10-21swapper/120:56:191
293622355,13sleep20-21swapper/219:35:442
211702355,10sleep10-21swapper/120:32:301
18172355,10sleep10-21swapper/121:02:021
1598199358,24cyclictest0-21swapper/323:00:153
15981993513,19cyclictest0-21swapper/323:10:233
15981993513,19cyclictest0-21swapper/322:20:173
15980993516,16cyclictest0-21swapper/223:23:422
15980993516,16cyclictest0-21swapper/223:23:422
15980993515,17cyclictest0-21swapper/222:35:082
1597999357,19cyclictest0-21swapper/122:15:351
1597999357,19cyclictest0-21swapper/122:15:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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