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2026-08-12 - 06:03
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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 Aug 12, 2026 00:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8387211351,21sleep10-21swapper/119:06:041
3157621110,0sleep030320-21stress23:37:270
3157621110,0sleep030320-21stress23:37:260
8579210762,40sleep30-21swapper/319:08:313
840328759,23sleep20-21swapper/219:06:162
834128655,26sleep00-21swapper/019:05:300
8820995416,36cyclictest0-21swapper/221:20:212
8820995415,16cyclictest0-21swapper/200:01:192
8820995413,38cyclictest0-21swapper/200:07:362
8820995413,38cyclictest0-21swapper/200:07:362
8820995315,16cyclictest0-21swapper/223:20:152
8820995311,39cyclictest0-21swapper/200:20:122
882099529,19cyclictest0-21swapper/223:55:272
882099528,21cyclictest0-21swapper/222:41:142
8820995215,15cyclictest0-21swapper/221:41:512
8820995214,34cyclictest0-21swapper/223:50:592
8820995212,19cyclictest0-21swapper/222:00:502
8820995116,32cyclictest0-21swapper/223:09:082
8820995113,15cyclictest0-21swapper/200:15:182
882099506,25cyclictest0-21swapper/223:45:182
8820995015,32cyclictest0-21swapper/221:54:532
8820995013,17cyclictest0-21swapper/221:58:222
8820995012,17cyclictest0-21swapper/223:30:332
8820995011,17cyclictest0-21swapper/200:30:152
298172500,1sleep230320-21stress23:35:112
298172500,1sleep230320-21stress23:35:102
882099498,20cyclictest0-21swapper/222:05:262
8820994915,15cyclictest0-21swapper/223:03:282
882099489,21cyclictest0-21swapper/222:11:292
8820994815,15cyclictest0-21swapper/223:29:432
8820994815,15cyclictest0-21swapper/223:29:432
8820994812,15cyclictest0-21swapper/222:55:222
8820994810,13cyclictest0-21swapper/221:28:322
8820994713,15cyclictest0-21swapper/221:45:072
8820994711,17cyclictest0-21swapper/200:10:322
8820994711,13cyclictest0-21swapper/222:35:242
8820994711,13cyclictest0-21swapper/222:15:232
8820994711,13cyclictest0-21swapper/222:15:232
882099466,21cyclictest0-21swapper/222:50:252
882099466,21cyclictest0-21swapper/222:50:242
882099466,17cyclictest0-21swapper/222:25:162
882099466,15cyclictest0-21swapper/222:45:222
8820994611,16cyclictest0-21swapper/219:45:182
882099458,15cyclictest0-21swapper/221:30:372
882099456,17cyclictest0-21swapper/200:35:202
882099456,16cyclictest0-21swapper/200:25:372
882099455,25cyclictest0-21swapper/220:24:212
882099455,25cyclictest0-21swapper/219:56:012
882099455,24cyclictest0-21swapper/220:01:412
882099455,24cyclictest0-21swapper/220:01:412
882099447,15cyclictest0-21swapper/223:15:262
882099446,15cyclictest0-21swapper/221:35:202
882099445,24cyclictest0-21swapper/220:39:312
882099445,24cyclictest0-21swapper/220:27:112
882099445,24cyclictest0-21swapper/219:25:512
882099445,10cyclictest0-21swapper/220:07:212
8820994416,13cyclictest0-21swapper/219:15:312
8820994414,14cyclictest0-21swapper/219:30:242
8820994412,14cyclictest0-21swapper/220:30:162
8820994411,12cyclictest0-21swapper/219:20:252
882099438,15cyclictest0-21swapper/219:50:202
882099436,16cyclictest0-21swapper/223:10:342
882099436,14cyclictest0-21swapper/221:10:232
882099435,23cyclictest0-21swapper/220:58:312
8820994315,13cyclictest0-21swapper/220:51:512
8820994314,15cyclictest0-21swapper/219:35:122
8820994313,11cyclictest0-21swapper/221:15:292
8818994314,27cyclictest0-21swapper/022:22:460
882099426,15cyclictest0-21swapper/223:45:012
882099426,15cyclictest0-21swapper/223:45:012
882099425,17cyclictest0-21swapper/220:10:212
881899426,25cyclictest0-21swapper/000:05:370
881899426,25cyclictest0-21swapper/000:05:370
882099419,12cyclictest0-21swapper/222:30:292
882099416,15cyclictest0-21swapper/220:15:272
8820994112,12cyclictest0-21swapper/220:45:142
8818994113,21cyclictest0-21swapper/019:57:550
882099405,18cyclictest0-21swapper/219:42:442
8818994015,22cyclictest0-21swapper/023:24:020
8818994012,25cyclictest0-21swapper/021:17:450
882099398,13cyclictest0-21swapper/221:00:162
8820993911,11cyclictest0-21swapper/219:10:232
881899398,18cyclictest0-21swapper/000:20:130
8818993913,20cyclictest0-21swapper/020:36:170
8818993815,21cyclictest0-21swapper/000:36:020
8818993815,20cyclictest0-21swapper/023:10:060
8818993814,22cyclictest0-21swapper/021:34:340
8818993814,21cyclictest0-21swapper/021:41:090
234982380,1sleep130324-21stress00:32:461
882099376,15cyclictest0-21swapper/221:05:142
881899378,26cyclictest0-21swapper/021:39:120
881899375,25cyclictest0-21swapper/020:42:020
8818993710,21cyclictest0-21swapper/019:10:290
211412375,13sleep30-21swapper/320:46:473
180742375,15sleep30-21swapper/319:26:193
882199366,27cyclictest0-21swapper/321:55:243
8821993613,21cyclictest0-21swapper/322:20:123
881899369,22cyclictest0-21swapper/020:26:000
881899369,22cyclictest0-21swapper/019:50:060
8818993617,16cyclictest0-21swapper/022:28:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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