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2025-07-12 - 08:40
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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 50 highest latencies:
System rack7slot1.osadl.org (updated Sat Jul 12, 2025 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21937211552,57sleep00-21swapper/019:09:580
20086211453,23sleep20-21swapper/219:05:062
2540621100,1sleep38805-21stress21:46:243
2540621100,1sleep38805-21stress21:46:243
21851210550,51sleep10-21swapper/119:08:541
1068321020,1sleep18807-21stress21:12:251
2177129567,23sleep30-21swapper/319:07:523
22035995815,32cyclictest0-21swapper/122:35:131
22034995623,21cyclictest0-21swapper/023:25:160
22034995623,21cyclictest0-21swapper/023:25:150
22034995523,21cyclictest0-21swapper/023:05:160
248822530,1sleep08805-21stress23:03:350
2203599513,36cyclictest8805-21stress23:20:141
2203599513,27cyclictest8807-21stress23:28:101
2203599513,27cyclictest8807-21stress23:28:101
22037995016,15cyclictest0-21swapper/300:15:253
22037995015,19cyclictest0-21swapper/319:40:163
2203599503,35cyclictest8805-21stress23:58:421
2203599503,33cyclictest26594-21timerwakeupswit23:05:321
2203599503,28cyclictest8805-21stress23:15:591
2203599503,27cyclictest8807-21stress22:47:041
22035995013,27cyclictest0-21swapper/122:30:261
2203599493,32cyclictest8805-21stress22:11:361
2203599493,32cyclictest8805-21stress22:11:361
2203599493,30cyclictest8805-21stress22:52:401
2203599493,30cyclictest8805-21stress22:52:401
22035994914,24cyclictest0-21swapper/100:05:131
22035994912,26cyclictest0-21swapper/121:42:361
22035994912,26cyclictest0-21swapper/121:42:351
22034994929,17cyclictest0-21swapper/023:35:000
22037994814,16cyclictest0-21swapper/321:40:143
22037994814,16cyclictest0-21swapper/321:40:133
22037994810,20cyclictest0-21swapper/322:07:183
2203599483,33cyclictest8805-21stress21:55:051
2203599483,30cyclictest8805-21stress22:02:121
2203599483,27cyclictest8807-21stress23:14:011
2203599483,24cyclictest8805-21stress00:17:031
2203599482,25cyclictest8807-21stress22:43:021
2203499487,30cyclictest0-21swapper/022:50:160
2203499487,30cyclictest0-21swapper/022:50:160
2203499487,21cyclictest0-21swapper/022:45:270
22034994830,16cyclictest0-21swapper/023:51:180
22034994829,16cyclictest0-21swapper/022:06:540
2203799476,20cyclictest0-21swapper/300:25:143
2203599473,28cyclictest1833-21runrttasks00:02:421
2203599473,28cyclictest1833-21runrttasks00:02:411
2203599473,27cyclictest26525-21sed20:35:021
2203599473,25cyclictest8807-21stress21:25:271
2203599473,25cyclictest8805-21stress23:45:181
2203599472,33cyclictest8807-21stress22:15:381
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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