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2026-07-14 - 04:40
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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 100 highest latencies:
System rack7slot1.osadl.org (updated Tue Jul 14, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31944212060,20sleep20-21swapper/219:05:062
1423211552,24sleep00-21swapper/019:09:380
1210211451,58sleep10-21swapper/119:06:541
131129368,20sleep30-21swapper/319:08:123
1555994212,27cyclictest0-21swapper/222:33:172
28512410,2sleep022752-21stress22:50:220
28512410,2sleep022752-21stress22:50:220
1555994112,26cyclictest0-21swapper/223:35:202
155599403,21cyclictest22752-21stress21:25:332
1555994018,19cyclictest0-21swapper/222:51:002
1555994018,19cyclictest0-21swapper/222:51:002
1555994016,22cyclictest0-21swapper/223:41:222
1555994015,22cyclictest0-21swapper/221:55:202
155599398,23cyclictest0-21swapper/223:45:232
155599394,25cyclictest19365-21grep22:15:152
1555993914,23cyclictest0-21swapper/222:48:482
283562385,10sleep00-21swapper/020:06:320
240282385,13sleep10-21swapper/119:57:111
201922384,16sleep00-21swapper/021:01:290
182642385,17sleep10-21swapper/120:59:181
155599383,22cyclictest6408-21sed00:10:352
1555993817,19cyclictest0-21swapper/223:20:572
1555993816,20cyclictest0-21swapper/221:50:482
1555993816,20cyclictest0-21swapper/221:39:132
1555993816,20cyclictest0-21swapper/221:39:132
1555993816,19cyclictest0-21swapper/222:25:272
1555993816,19cyclictest0-21swapper/200:00:252
1555993816,19cyclictest0-21swapper/200:00:252
1555993815,21cyclictest0-21swapper/221:30:102
1555993815,20cyclictest0-21swapper/223:29:242
1555993815,20cyclictest0-21swapper/223:29:242
1555993813,22cyclictest0-21swapper/222:00:292
1555993812,23cyclictest0-21swapper/221:15:182
1555993811,24cyclictest0-21swapper/223:56:582
1555993811,24cyclictest0-21swapper/223:00:272
1555993810,25cyclictest0-21swapper/222:55:312
151942384,16sleep00-21swapper/019:36:080
202542375,16sleep10-21swapper/121:02:151
155599378,27cyclictest0-21swapper/222:20:022
155599373,31cyclictest22750-21stress21:41:552
1555993717,17cyclictest0-21swapper/223:15:112
1555993714,20cyclictest0-21swapper/223:50:342
1555993713,22cyclictest0-21swapper/223:05:352
1555993713,22cyclictest0-21swapper/223:05:352
1555993713,21cyclictest0-21swapper/200:35:142
1555993713,21cyclictest0-21swapper/200:35:142
1555993713,21cyclictest0-21swapper/200:24:502
1555993712,22cyclictest0-21swapper/222:40:162
1555993712,22cyclictest0-21swapper/221:10:242
1555993712,22cyclictest0-21swapper/200:30:222
129402375,10sleep30-21swapper/319:30:303
129402375,10sleep30-21swapper/319:30:303
49002365,13sleep30-21swapper/320:26:483
4112365,16sleep10-21swapper/120:17:111
37232364,16sleep00-21swapper/019:14:190
173692364,13sleep00-21swapper/019:40:460
155599363,30cyclictest4202-21ntpq19:15:012
155599363,20cyclictest20448-21cpuspeed_turbos19:50:142
1555993617,17cyclictest0-21swapper/221:45:142
1555993614,20cyclictest0-21swapper/200:05:112
1555993614,19cyclictest0-21swapper/200:15:272
1555993614,19cyclictest0-21swapper/200:15:272
1555993613,21cyclictest0-21swapper/223:30:162
1555993613,21cyclictest0-21swapper/222:10:302
1555993613,21cyclictest0-21swapper/222:05:262
1555993612,21cyclictest0-21swapper/221:20:192
1554993613,21cyclictest0-21swapper/123:30:261
1554993610,23cyclictest0-21swapper/122:35:111
1553993612,21cyclictest0-21swapper/023:19:480
1553993612,21cyclictest0-21swapper/022:58:160
136302365,16sleep10-21swapper/120:46:351
132242365,10sleep00-21swapper/019:34:000
132242365,10sleep00-21swapper/019:33:590
110732365,16sleep10-21swapper/119:29:161
110732365,16sleep10-21swapper/119:29:161
72262355,13sleep10-21swapper/120:33:111
285632355,13sleep10-21swapper/120:09:051
264662355,16sleep10-21swapper/120:04:521
219042355,16sleep10-21swapper/119:52:491
1555993512,20cyclictest0-21swapper/223:10:262
1554993512,21cyclictest0-21swapper/123:29:501
1554993512,21cyclictest0-21swapper/123:29:501
1553993516,16cyclictest0-21swapper/022:09:170
1553993515,17cyclictest0-21swapper/021:50:320
1553993511,21cyclictest0-21swapper/000:17:090
1553993511,21cyclictest0-21swapper/000:17:090
141822354,16sleep00-21swapper/020:50:030
36132345,13sleep10-21swapper/119:13:001
159852345,13sleep10-21swapper/120:53:201
155599345,22cyclictest0-21swapper/221:00:252
155599343,28cyclictest8537-21missed_timers20:35:182
1555993415,17cyclictest0-21swapper/200:25:132
1555993411,21cyclictest0-21swapper/222:35:282
155499349,23cyclictest0-21swapper/119:30:131
155499349,23cyclictest0-21swapper/119:30:131
1554993413,18cyclictest0-21swapper/121:40:131
1554993412,19cyclictest0-21swapper/123:20:121
1553993411,20cyclictest0-21swapper/022:30:070
1553993410,21cyclictest0-21swapper/000:25:290
1553993410,21cyclictest0-21swapper/000:10:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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