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2025-06-13 - 18:53
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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 Fri Jun 13, 2025 12:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29477211552,58sleep00-21swapper/007:08:020
29593211453,21sleep20-21swapper/207:09:332
29505210448,51sleep10-21swapper/107:08:221
2933129365,23sleep30-21swapper/307:06:093
86522700,2sleep316164-21stress11:25:203
219542600,1sleep021953-21smart_sda11:55:320
161832450,2sleep116167-21stress10:25:241
2973299405,21cyclictest0-21swapper/111:24:541
284562400,1sleep216165-21stress09:36:382
29731993916,20cyclictest0-21swapper/012:16:140
29731993912,15cyclictest0-21swapper/009:45:010
29733993811,24cyclictest0-21swapper/210:51:542
29731993816,19cyclictest0-21swapper/010:19:560
29731993811,16cyclictest0-21swapper/011:35:300
29741993712,22cyclictest0-21swapper/310:16:303
29732993712,22cyclictest0-21swapper/112:22:501
66552365,11sleep00-21swapper/008:45:210
29741993614,20cyclictest0-21swapper/311:34:273
29741993614,20cyclictest0-21swapper/310:46:503
29741993611,22cyclictest0-21swapper/309:27:053
29741993610,23cyclictest0-21swapper/309:15:353
29733993616,18cyclictest0-21swapper/210:45:292
29731993614,19cyclictest0-21swapper/012:30:500
29731993614,19cyclictest0-21swapper/012:30:490
29731993614,19cyclictest0-21swapper/011:45:010
229132365,13sleep00-21swapper/008:05:390
19492364,13sleep00-21swapper/007:16:520
97272355,11sleep10-21swapper/108:54:251
83552355,11sleep30-21swapper/307:33:033
74722355,11sleep10-21swapper/108:47:351
63332355,11sleep10-21swapper/107:29:041
40532355,12sleep10-21swapper/107:21:471
2974199358,25cyclictest0-21swapper/307:40:063
2974199358,24cyclictest0-21swapper/311:55:203
2974199357,25cyclictest0-21swapper/310:55:233
29741993512,21cyclictest0-21swapper/311:35:163
29732993514,18cyclictest0-21swapper/109:20:081
29731993513,20cyclictest0-21swapper/010:10:240
29731993511,21cyclictest0-21swapper/010:27:550
293292355,11sleep30-21swapper/308:21:553
252622355,11sleep10-21swapper/108:13:501
230182355,11sleep30-21swapper/308:07:043
19522355,11sleep30-21swapper/307:16:563
188892355,11sleep30-21swapper/307:58:063
167172355,11sleep30-21swapper/307:52:153
314432345,11sleep10-21swapper/108:27:021
2974199349,23cyclictest0-21swapper/310:08:113
2974199349,23cyclictest0-21swapper/310:08:113
2974199349,22cyclictest0-21swapper/312:20:223
2974199348,24cyclictest0-21swapper/308:27:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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