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2026-09-12 - 16:37
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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 Sat Sep 12, 2026 12:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19386212665,20sleep30-21swapper/307:05:263
2891521240,1sleep09570-21stress12:15:440
19690211250,57sleep00-21swapper/007:09:090
1968629348,40sleep10-21swapper/107:09:061
1947329267,20sleep20-21swapper/207:06:342
302162480,1sleep030217-21awk09:55:190
1986499417,31cyclictest0-21swapper/011:00:310
19867994014,23cyclictest0-21swapper/310:20:093
19867994013,24cyclictest0-21swapper/311:59:213
19867993914,22cyclictest0-21swapper/311:37:503
19867993912,24cyclictest0-21swapper/309:55:333
1986699398,28cyclictest0-21swapper/211:52:482
1986499399,27cyclictest0-21swapper/012:35:260
19864993915,21cyclictest0-21swapper/012:10:180
197612398,12sleep10-21swapper/108:20:051
19867993814,22cyclictest0-21swapper/311:14:273
19867993814,22cyclictest0-21swapper/311:14:263
19867993814,21cyclictest0-21swapper/312:13:023
1986699389,26cyclictest0-21swapper/211:26:242
19866993817,18cyclictest0-21swapper/209:46:062
19865993814,21cyclictest0-21swapper/110:12:001
19864993816,19cyclictest0-21swapper/010:55:230
193042385,13sleep20-21swapper/208:17:482
193042385,13sleep20-21swapper/208:17:482
59162376,12sleep10-21swapper/107:47:161
59052375,13sleep20-21swapper/207:47:102
236122375,13sleep30-21swapper/308:26:193
19867993716,18cyclictest0-21swapper/310:31:103
19867993716,18cyclictest0-21swapper/310:31:103
19867993714,20cyclictest0-21swapper/309:32:393
19867993711,23cyclictest0-21swapper/312:09:503
19866993711,23cyclictest0-21swapper/212:00:182
19864993716,19cyclictest0-21swapper/008:15:060
19864993716,19cyclictest0-21swapper/008:15:050
19864993715,20cyclictest0-21swapper/007:35:220
19864993715,19cyclictest0-21swapper/010:49:480
19864993714,21cyclictest0-21swapper/012:00:200
169572375,13sleep30-21swapper/308:11:163
70812364,13sleep30-21swapper/309:02:363
46402365,13sleep00-21swapper/008:55:280
313512365,13sleep00-21swapper/007:30:260
258172365,13sleep30-21swapper/308:30:443
23742365,9sleep30-21swapper/307:40:163
19867993616,17cyclictest0-21swapper/311:40:133
19867993616,17cyclictest0-21swapper/309:26:093
19867993616,17cyclictest0-21swapper/309:13:063
19867993615,19cyclictest0-21swapper/310:16:373
19867993615,18cyclictest0-21swapper/312:01:433
1986699369,24cyclictest0-21swapper/211:15:442
1986699369,24cyclictest0-21swapper/209:40:082
19866993615,19cyclictest0-21swapper/209:54:152
19866993615,19cyclictest0-21swapper/209:54:152
19866993614,19cyclictest0-21swapper/210:44:382
19866993611,22cyclictest0-21swapper/210:13:172
19866993610,23cyclictest0-21swapper/211:07:142
1986499368,25cyclictest0-21swapper/010:10:150
19864993616,18cyclictest0-21swapper/008:45:590
19864993614,20cyclictest0-21swapper/011:09:130
19864993612,21cyclictest0-21swapper/009:40:150
105762364,13sleep30-21swapper/307:59:583
280772354,11sleep30-21swapper/308:36:343
269592355,11sleep30-21swapper/307:21:153
260952355,11sleep20-21swapper/208:34:132
260792354,12sleep10-21swapper/108:33:591
25222355,11sleep30-21swapper/308:52:383
250122355,12sleep10-21swapper/107:19:291
246692353,13sleep20-21swapper/207:15:302
216832354,13sleep10-21swapper/107:10:511
19867993516,17cyclictest0-21swapper/311:31:393
1986699359,23cyclictest0-21swapper/209:55:212
19866993515,17cyclictest0-21swapper/211:48:312
19866993514,19cyclictest0-21swapper/211:01:012
19866993514,18cyclictest0-21swapper/210:29:162
19866993511,21cyclictest0-21swapper/210:50:142
19866993510,22cyclictest0-21swapper/209:15:522
19865993512,20cyclictest0-21swapper/110:54:151
1986499358,25cyclictest0-21swapper/012:30:500
1986499358,25cyclictest0-21swapper/008:23:400
1986499358,25cyclictest0-21swapper/007:12:200
19864993514,19cyclictest0-21swapper/010:50:090
19864993511,22cyclictest0-21swapper/011:45:000
19864993511,21cyclictest0-21swapper/011:25:310
191712353,13sleep30-21swapper/308:16:143
191712353,13sleep30-21swapper/308:16:133
147302355,13sleep00-21swapper/008:06:430
35982345,12sleep00-21swapper/007:41:370
302502344,11sleep20-21swapper/208:40:302
294652344,11sleep20-21swapper/207:29:562
19867993415,16cyclictest0-21swapper/311:15:213
19867993415,16cyclictest0-21swapper/310:50:293
19867993414,17cyclictest0-21swapper/310:55:353
19867993414,17cyclictest0-21swapper/310:35:153
19867993413,19cyclictest0-21swapper/309:40:243
19867993413,18cyclictest0-21swapper/312:15:053
19867993413,18cyclictest0-21swapper/310:00:033
19866993417,14cyclictest0-21swapper/210:25:022
19866993415,16cyclictest0-21swapper/211:10:172
19866993415,16cyclictest0-21swapper/211:10:172
19866993414,17cyclictest0-21swapper/210:15:092
19866993413,19cyclictest0-21swapper/212:13:392
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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