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2026-08-12 - 19:23
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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 12:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27225212361,20sleep20-21swapper/207:08:052
27225212361,20sleep20-21swapper/207:08:052
27175211551,58sleep30-21swapper/307:07:303
27175211551,58sleep30-21swapper/307:07:303
27320211452,57sleep00-21swapper/007:09:200
27320211452,57sleep00-21swapper/007:09:190
27229211150,56sleep10-21swapper/107:08:081
27229211150,56sleep10-21swapper/107:08:081
2748999479,28cyclictest0-21swapper/109:53:581
27488994613,17cyclictest0-21swapper/010:10:190
27489994516,19cyclictest0-21swapper/110:55:261
2748899457,27cyclictest0-21swapper/012:36:040
2748999438,25cyclictest0-21swapper/111:50:221
2748999438,25cyclictest0-21swapper/111:50:211
27490994218,21cyclictest0-21swapper/211:36:302
27489994212,21cyclictest0-21swapper/110:00:021
27489994212,20cyclictest0-21swapper/109:30:201
2748899428,31cyclictest0-21swapper/010:01:060
2748899428,19cyclictest0-21swapper/009:50:010
2748899426,20cyclictest0-21swapper/011:15:010
27488994214,18cyclictest0-21swapper/007:10:060
27490994111,27cyclictest0-21swapper/210:45:122
27489994112,19cyclictest0-21swapper/111:18:281
2748899417,31cyclictest0-21swapper/010:19:190
2749099405,23cyclictest0-21swapper/210:15:352
27490994015,22cyclictest0-21swapper/210:44:082
27490994015,22cyclictest0-21swapper/210:44:082
27490994013,24cyclictest0-21swapper/210:06:222
27489994010,28cyclictest0-21swapper/110:29:371
27488994016,15cyclictest0-21swapper/008:35:060
27490993918,18cyclictest0-21swapper/211:42:332
27490993915,21cyclictest0-21swapper/210:22:582
27490993914,22cyclictest0-21swapper/211:46:392
27490993914,22cyclictest0-21swapper/211:20:472
2748899399,27cyclictest0-21swapper/009:13:370
2748899399,15cyclictest0-21swapper/012:10:160
2748899399,13cyclictest0-21swapper/010:20:160
2748899398,28cyclictest0-21swapper/010:49:100
273532395,13sleep20-21swapper/208:20:152
69042385,13sleep20-21swapper/207:33:402
299132385,13sleep30-21swapper/308:25:183
27491993811,24cyclictest0-21swapper/311:40:233
2749099389,26cyclictest0-21swapper/210:51:502
27490993814,22cyclictest0-21swapper/210:27:082
27490993814,21cyclictest0-21swapper/212:15:012
2748999389,20cyclictest0-21swapper/109:10:061
27489993816,20cyclictest0-21swapper/112:15:281
27489993810,18cyclictest0-21swapper/112:22:441
27488993811,19cyclictest0-21swapper/011:20:170
27488993810,25cyclictest0-21swapper/009:26:530
46522375,13sleep20-21swapper/207:28:342
31922375,12sleep30-21swapper/308:37:453
312352375,13sleep20-21swapper/208:29:142
304732375,15sleep20-21swapper/207:15:032
293502375,13sleep10-21swapper/107:11:531
2749199377,26cyclictest0-21swapper/310:16:253
27491993713,20cyclictest0-21swapper/311:35:233
2749099379,16cyclictest0-21swapper/211:00:212
2749099376,14cyclictest0-21swapper/212:15:142
2749099376,14cyclictest0-21swapper/209:55:232
27490993718,16cyclictest0-21swapper/210:30:142
27490993717,18cyclictest0-21swapper/210:04:322
27490993710,25cyclictest0-21swapper/210:55:102
2748999377,20cyclictest0-21swapper/111:05:351
27489993710,24cyclictest0-21swapper/112:31:141
27489993710,24cyclictest0-21swapper/112:31:141
2748899376,24cyclictest0-21swapper/008:03:480
2748899375,22cyclictest0-21swapper/009:05:210
27488993713,17cyclictest0-21swapper/007:41:440
27488993711,19cyclictest0-21swapper/007:30:150
177232375,13sleep00-21swapper/007:56:220
157932375,13sleep30-21swapper/307:54:583
132412375,12sleep20-21swapper/207:45:552
125012375,13sleep00-21swapper/009:00:070
121152375,13sleep00-21swapper/008:58:430
119022375,13sleep10-21swapper/108:56:141
10762375,13sleep10-21swapper/108:34:421
90522365,13sleep00-21swapper/007:38:030
312852365,13sleep00-21swapper/008:29:520
27490993616,17cyclictest0-21swapper/211:25:062
27490993614,20cyclictest0-21swapper/210:10:512
27490993614,19cyclictest0-21swapper/212:06:162
27490993614,19cyclictest0-21swapper/211:59:502
27490993614,19cyclictest0-21swapper/211:59:502
27490993611,22cyclictest0-21swapper/211:15:192
2748999366,24cyclictest0-21swapper/109:08:021
2748999365,21cyclictest0-21swapper/110:45:351
27489993614,20cyclictest0-21swapper/110:10:221
2748899367,26cyclictest0-21swapper/009:20:060
2748899365,25cyclictest0-21swapper/008:46:010
27488993612,21cyclictest0-21swapper/010:35:350
266752365,12sleep10-21swapper/108:17:461
242372365,13sleep30-21swapper/308:10:303
215292364,13sleep10-21swapper/108:05:221
200912365,12sleep30-21swapper/308:03:363
157172365,13sleep00-21swapper/007:54:030
154912365,10sleep20-21swapper/207:51:282
315642355,12sleep00-21swapper/008:30:040
289502355,13sleep30-21swapper/308:24:013
27490993515,17cyclictest0-21swapper/209:40:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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