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2026-04-26 - 21:43
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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 Sun Apr 26, 2026 12:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1514211857,20sleep20-21swapper/207:07:132
1716211754,57sleep00-21swapper/007:09:400
1396211553,57sleep10-21swapper/107:05:441
1725211150,55sleep30-21swapper/307:09:473
1843994216,20cyclictest0-21swapper/008:56:140
1843994112,23cyclictest0-21swapper/008:20:140
1843994016,22cyclictest0-21swapper/011:44:450
1843994016,21cyclictest0-21swapper/010:16:090
1843994016,21cyclictest0-21swapper/010:16:080
1843994015,22cyclictest0-21swapper/012:10:400
184399398,28cyclictest0-21swapper/011:52:480
184399397,21cyclictest0-21swapper/010:55:000
1843993914,22cyclictest0-21swapper/011:30:130
1843993914,22cyclictest0-21swapper/011:30:130
1843993913,23cyclictest0-21swapper/010:00:290
1843993913,20cyclictest0-21swapper/009:06:140
1843993913,20cyclictest0-21swapper/009:06:130
1843993913,20cyclictest0-21swapper/009:04:140
1843993912,21cyclictest0-21swapper/007:18:140
184599386,13cyclictest0-21swapper/211:24:422
184399389,26cyclictest0-21swapper/011:06:470
1843993815,20cyclictest0-21swapper/012:21:380
1843993815,20cyclictest0-21swapper/010:35:590
1843993813,22cyclictest0-21swapper/010:29:340
1843993813,19cyclictest0-21swapper/007:10:370
1843993812,20cyclictest0-21swapper/007:54:210
1843993812,13cyclictest0-21swapper/009:50:490
1843993812,13cyclictest0-21swapper/009:50:490
1843993810,21cyclictest0-21swapper/007:34:140
88952375,13sleep10-21swapper/108:38:271
88662375,13sleep20-21swapper/207:22:132
68662375,13sleep20-21swapper/208:34:562
37502375,13sleep10-21swapper/107:12:061
327042375,13sleep20-21swapper/208:19:232
281162375,13sleep10-21swapper/108:06:151
239242375,13sleep20-21swapper/207:57:262
22502375,13sleep10-21swapper/108:22:001
216712374,14sleep30-21swapper/309:06:563
216712374,14sleep30-21swapper/309:06:563
195752375,13sleep20-21swapper/209:02:462
184699378,26cyclictest0-21swapper/308:14:033
184399375,22cyclictest0-21swapper/011:25:280
184399375,22cyclictest0-21swapper/011:25:280
1843993718,17cyclictest0-21swapper/008:10:200
1843993715,19cyclictest0-21swapper/012:32:040
1843993714,21cyclictest0-21swapper/011:37:230
1843993714,20cyclictest0-21swapper/010:40:510
1843993712,19cyclictest0-21swapper/007:45:370
175042375,13sleep10-21swapper/108:58:281
152872375,13sleep30-21swapper/308:52:523
152612375,13sleep20-21swapper/208:52:312
151782375,13sleep10-21swapper/107:35:401
151782375,13sleep10-21swapper/107:35:391
132652375,13sleep20-21swapper/207:33:482
130122375,13sleep10-21swapper/107:30:391
108692375,13sleep30-21swapper/307:25:313
65572365,12sleep10-21swapper/108:31:091
1846993611,22cyclictest0-21swapper/311:22:433
184399367,18cyclictest0-21swapper/011:45:190
184399366,19cyclictest0-21swapper/009:35:030
1843993615,18cyclictest0-21swapper/010:20:190
1843993615,18cyclictest0-21swapper/009:28:560
1843993612,21cyclictest0-21swapper/011:55:110
1843993612,21cyclictest0-21swapper/011:55:110
1843993612,18cyclictest0-21swapper/008:05:060
1843993611,22cyclictest0-21swapper/009:35:190
175082365,12sleep10-21swapper/107:42:411
131572365,12sleep30-21swapper/307:32:263
108732365,12sleep10-21swapper/108:41:241
93482355,10sleep10-21swapper/107:25:051
89302354,13sleep00-21swapper/007:23:040
1846993515,17cyclictest0-21swapper/311:35:213
184499358,25cyclictest0-21swapper/108:14:031
184499356,15cyclictest0-21swapper/112:05:251
184399358,19cyclictest0-21swapper/012:35:350
1843993514,19cyclictest0-21swapper/011:10:280
1843993514,18cyclictest0-21swapper/009:41:460
1843993514,18cyclictest0-21swapper/009:41:460
1843993511,21cyclictest0-21swapper/012:25:070
174592354,12sleep00-21swapper/007:42:080
90132345,10sleep20-21swapper/208:39:572
282142345,12sleep20-21swapper/208:07:332
260872345,10sleep20-21swapper/208:02:392
239752345,10sleep30-21swapper/307:58:083
22262345,10sleep30-21swapper/308:21:423
195362345,10sleep30-21swapper/309:02:153
194742345,10sleep20-21swapper/207:45:392
184699348,24cyclictest0-21swapper/307:48:433
184599347,24cyclictest0-21swapper/210:15:162
184599347,24cyclictest0-21swapper/210:15:152
184499346,26cyclictest0-21swapper/111:40:421
184399345,22cyclictest0-21swapper/008:15:050
184399344,24cyclictest0-21swapper/007:55:220
1843993414,17cyclictest0-21swapper/009:20:050
1843993413,18cyclictest0-21swapper/010:46:070
1843993413,18cyclictest0-21swapper/010:46:070
129682345,12sleep00-21swapper/008:45:560
109682345,10sleep00-21swapper/007:26:440
261932335,10sleep30-21swapper/308:04:003
184699337,23cyclictest0-21swapper/310:28:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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