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2026-04-27 - 17:10
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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 Mon Apr 27, 2026 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5963211655,20sleep20-21swapper/207:08:022
6114211551,24sleep10-21swapper/107:09:451
5992211251,23sleep00-21swapper/007:08:240
6141210850,20sleep30-21swapper/307:09:593
624499679,46cyclictest0-21swapper/210:35:302
624499679,46cyclictest0-21swapper/210:35:302
624499667,43cyclictest0-21swapper/212:29:082
6244996612,38cyclictest0-21swapper/212:35:332
624499659,45cyclictest0-21swapper/210:01:532
191262650,1sleep326320-21stress12:36:383
6244996310,42cyclictest0-21swapper/211:10:022
624499579,26cyclictest0-21swapper/209:45:342
6244995715,39cyclictest0-21swapper/211:10:152
6244995715,39cyclictest0-21swapper/211:10:152
6244995715,39cyclictest0-21swapper/211:00:332
6244995714,40cyclictest0-21swapper/210:28:492
6242995713,28cyclictest0-21swapper/010:55:480
6244995615,20cyclictest0-21swapper/210:51:242
6244995515,37cyclictest0-21swapper/209:50:142
6244995515,37cyclictest0-21swapper/209:31:162
6244995515,19cyclictest0-21swapper/210:10:232
6244995515,19cyclictest0-21swapper/209:37:162
6244995415,16cyclictest0-21swapper/211:20:162
6244995414,37cyclictest0-21swapper/211:30:312
6244995411,22cyclictest0-21swapper/212:00:162
6244995411,19cyclictest0-21swapper/211:15:182
624499539,24cyclictest0-21swapper/212:24:342
624499539,24cyclictest0-21swapper/212:24:332
6244995314,15cyclictest0-21swapper/211:55:282
295092530,1sleep229508-21ntpq10:30:272
624499527,41cyclictest0-21swapper/209:27:182
624499527,21cyclictest0-21swapper/209:40:272
624499526,42cyclictest0-21swapper/210:45:332
6244995213,35cyclictest0-21swapper/212:30:152
6244995213,15cyclictest0-21swapper/212:05:122
6244995212,37cyclictest0-21swapper/209:10:342
6244995211,38cyclictest0-21swapper/210:44:402
624499519,39cyclictest0-21swapper/210:15:152
624499515,29cyclictest0-21swapper/207:10:182
6244995113,35cyclictest0-21swapper/209:18:522
6244995113,35cyclictest0-21swapper/209:18:512
6244995110,15cyclictest0-21swapper/211:25:262
6244995011,16cyclictest0-21swapper/209:55:262
624499498,38cyclictest0-21swapper/209:20:152
624499498,38cyclictest0-21swapper/209:20:142
6244994814,17cyclictest0-21swapper/210:55:312
6244994814,14cyclictest0-21swapper/211:50:342
6244994812,33cyclictest0-21swapper/211:40:232
6244994811,17cyclictest0-21swapper/210:05:242
6244994810,17cyclictest0-21swapper/211:45:192
6244994810,17cyclictest0-21swapper/211:45:192
624499477,17cyclictest0-21swapper/210:24:042
6244994716,15cyclictest0-21swapper/208:27:552
6244994712,15cyclictest0-21swapper/212:10:242
624499464,25cyclictest0-21swapper/208:21:062
624499464,25cyclictest0-21swapper/208:11:452
6244994510,17cyclictest0-21swapper/208:50:202
6244994415,13cyclictest0-21swapper/207:46:552
6244994410,16cyclictest0-21swapper/207:55:122
624499434,24cyclictest0-21swapper/207:17:452
6244994312,15cyclictest0-21swapper/207:52:052
624499429,12cyclictest0-21swapper/211:35:122
624499426,13cyclictest0-21swapper/212:17:272
624499425,21cyclictest0-21swapper/209:04:282
624499424,21cyclictest0-21swapper/207:24:562
6244994214,13cyclictest0-21swapper/207:31:162
6244994213,13cyclictest0-21swapper/208:58:052
6244994213,13cyclictest0-21swapper/207:35:262
6244994212,16cyclictest0-21swapper/207:27:562
6244994211,15cyclictest0-21swapper/208:36:102
6244994211,15cyclictest0-21swapper/208:36:102
6242994217,22cyclictest0-21swapper/012:13:440
6242994210,29cyclictest0-21swapper/011:21:350
624499414,21cyclictest0-21swapper/208:05:142
6244994110,16cyclictest0-21swapper/208:16:242
6244994110,16cyclictest0-21swapper/208:00:272
6244994110,16cyclictest0-21swapper/207:40:512
624499397,13cyclictest0-21swapper/208:34:592
624499394,33cyclictest0-21swapper/208:45:072
624499394,16cyclictest0-21swapper/209:06:112
6242993913,23cyclictest0-21swapper/009:45:260
624499385,16cyclictest0-21swapper/208:43:492
624299379,25cyclictest0-21swapper/012:30:100
6242993712,22cyclictest0-21swapper/010:15:220
6242993711,23cyclictest0-21swapper/012:09:140
175902375,13sleep00-21swapper/007:33:310
153742375,13sleep00-21swapper/008:43:390
151652375,12sleep30-21swapper/308:41:013
140662375,14sleep00-21swapper/007:25:160
624299366,27cyclictest0-21swapper/010:55:000
6242993617,17cyclictest0-21swapper/007:10:180
6242993616,19cyclictest0-21swapper/008:30:060
304042365,13sleep10-21swapper/108:02:501
289602360,3sleep126317-21stress09:15:161
289602360,3sleep126317-21stress09:15:151
284122365,12sleep00-21swapper/007:59:520
240482365,12sleep30-21swapper/307:48:493
196802365,12sleep30-21swapper/307:38:023
112272365,14sleep10-21swapper/107:19:481
108382365,12sleep10-21swapper/108:30:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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