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2026-09-05 - 05:51
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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 Sep 05, 2026 00:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1082021170,0sleep123594-21stress00:18:331
1207211552,24sleep00-21swapper/019:05:430
1344211457,20sleep30-21swapper/319:07:273
1548211352,55sleep20-21swapper/219:09:592
128129951,43sleep10-21swapper/119:06:351
165299706,44cyclictest0-21swapper/021:50:210
165299705,51cyclictest0-21swapper/023:13:340
165299705,51cyclictest0-21swapper/023:13:340
165299677,41cyclictest0-21swapper/022:05:360
165299677,41cyclictest0-21swapper/022:05:360
1652996611,44cyclictest0-21swapper/022:25:160
1652996510,47cyclictest0-21swapper/000:20:310
1652996510,47cyclictest0-21swapper/000:20:310
165299645,48cyclictest0-21swapper/021:20:440
165299645,48cyclictest0-21swapper/021:20:440
1652996412,35cyclictest0-21swapper/022:03:180
165299636,47cyclictest0-21swapper/000:10:290
165299626,39cyclictest0-21swapper/022:10:340
165299625,41cyclictest0-21swapper/022:30:360
165299607,41cyclictest0-21swapper/022:15:140
165299606,43cyclictest0-21swapper/023:37:120
165299597,49cyclictest0-21swapper/021:55:220
165299596,38cyclictest0-21swapper/000:03:040
165299557,45cyclictest0-21swapper/023:30:110
165299556,46cyclictest0-21swapper/021:25:200
1652995413,39cyclictest0-21swapper/021:15:220
1652995413,39cyclictest0-21swapper/021:15:220
1652995313,37cyclictest0-21swapper/022:59:580
1652995311,19cyclictest0-21swapper/000:27:390
165299529,40cyclictest0-21swapper/021:35:300
165299526,42cyclictest0-21swapper/000:15:310
165299526,18cyclictest0-21swapper/023:45:150
165299519,21cyclictest0-21swapper/019:16:010
165299516,42cyclictest0-21swapper/023:55:190
165299516,21cyclictest0-21swapper/019:35:510
165299516,20cyclictest0-21swapper/019:55:220
165299516,20cyclictest0-21swapper/000:35:280
1652995113,18cyclictest0-21swapper/023:05:120
1652995112,36cyclictest0-21swapper/022:20:230
165299507,40cyclictest0-21swapper/000:05:150
165299506,41cyclictest0-21swapper/023:00:270
165299506,19cyclictest0-21swapper/023:50:270
165299505,42cyclictest0-21swapper/021:45:220
165299505,21cyclictest0-21swapper/019:21:330
1652995015,16cyclictest0-21swapper/021:05:310
1652995013,34cyclictest0-21swapper/023:20:330
1652995010,20cyclictest0-21swapper/023:40:150
165299497,20cyclictest0-21swapper/020:55:510
165299496,40cyclictest0-21swapper/022:35:260
165299496,40cyclictest0-21swapper/022:35:260
165299496,18cyclictest0-21swapper/023:25:180
165299496,18cyclictest0-21swapper/023:15:180
165299496,17cyclictest0-21swapper/000:30:230
165299495,21cyclictest0-21swapper/019:10:060
1652994914,18cyclictest0-21swapper/020:40:150
165299487,20cyclictest0-21swapper/020:51:000
165299486,20cyclictest0-21swapper/022:40:260
165299486,20cyclictest0-21swapper/021:40:150
165299486,19cyclictest0-21swapper/022:50:150
165299486,18cyclictest0-21swapper/022:45:290
165299485,27cyclictest0-21swapper/019:31:150
1652994810,35cyclictest0-21swapper/021:13:290
1652994810,16cyclictest0-21swapper/020:30:370
165299479,17cyclictest0-21swapper/019:40:010
165299478,18cyclictest0-21swapper/020:20:330
165299476,19cyclictest0-21swapper/021:30:100
165299475,26cyclictest0-21swapper/020:16:550
165299475,24cyclictest0-21swapper/020:45:150
165299475,20cyclictest0-21swapper/020:10:390
166342460,1sleep223597-21stress23:19:522
165299468,18cyclictest0-21swapper/021:04:400
1652994610,19cyclictest0-21swapper/020:38:100
1652994610,19cyclictest0-21swapper/020:38:100
1652994610,19cyclictest0-21swapper/019:45:230
1652994610,19cyclictest0-21swapper/019:26:360
165299458,22cyclictest0-21swapper/020:00:110
165299445,23cyclictest0-21swapper/020:25:180
1652994414,14cyclictest0-21swapper/019:50:050
165299435,20cyclictest0-21swapper/020:05:020
1653994015,16cyclictest0-21swapper/121:31:421
1653994010,21cyclictest0-21swapper/121:45:261
1653993912,17cyclictest0-21swapper/123:35:211
156982395,14sleep10-21swapper/119:38:291
244812385,14sleep30-21swapper/319:57:323
165499386,29cyclictest0-21swapper/223:00:492
165399385,21cyclictest0-21swapper/100:20:251
165399385,21cyclictest0-21swapper/100:20:241
1653993811,18cyclictest0-21swapper/122:32:321
1653993810,20cyclictest0-21swapper/122:05:161
1653993810,20cyclictest0-21swapper/122:05:161
243102375,11sleep20-21swapper/219:55:302
1654993711,23cyclictest0-21swapper/200:09:432
165399376,22cyclictest0-21swapper/121:44:491
1653993711,17cyclictest0-21swapper/120:15:221
1653993710,17cyclictest0-21swapper/123:25:301
122532375,14sleep10-21swapper/120:42:531
179552365,9sleep30-21swapper/319:43:283
166612364,12sleep20-21swapper/220:52:082
165499365,29cyclictest0-21swapper/222:06:352
165499365,29cyclictest0-21swapper/222:06:342
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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