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2026-06-19 - 13:12
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot5.osadl.org (updated Fri Jun 19, 2026 00:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3940357995520,551cyclictest0-21swapper/020:31:080
394040199527496,31cyclictest0-21swapper/1122:00:083
3940394995253,518cyclictest0-21swapper/1020:48:082
394038999508476,32cyclictest0-21swapper/920:50:0815
39403849950423,481cyclictest0-21swapper/719:33:0813
394036099499498,1cyclictest4025583-21kworker/1:2+i915-unordered20:50:081
39403579949645,30cyclictest0-21swapper/020:00:290
394040499486429,28cyclictest0-21swapper/1222:03:084
394036999484482,1cyclictest4081926-21kworker/3:1+i915-unordered22:04:089
3940384994800,480cyclictest0-21swapper/723:54:0813
39404179947424,30cyclictest0-21swapper/1521:12:527
39404099947124,29cyclictest0-21swapper/1321:14:295
39404099947123,29cyclictest0-21swapper/1321:08:295
39404099947123,28cyclictest0-21swapper/1322:32:295
39404099947122,30cyclictest0-21swapper/1320:26:305
394038999471470,1cyclictest3903389-21kworker/9:0+i915-unordered22:44:0815
394037599471441,30cyclictest0-21swapper/522:34:0811
39404179947024,30cyclictest0-21swapper/1521:32:537
39403949947022,29cyclictest0-21swapper/1020:09:532
39403949947022,29cyclictest0-21swapper/1020:09:532
39403579947023,30cyclictest0-21swapper/021:09:300
39404099946820,29cyclictest0-21swapper/1319:32:295
39403949946821,29cyclictest0-21swapper/1023:33:512
39403949946818,28cyclictest0-21swapper/1021:14:502
39404099946720,30cyclictest0-21swapper/1319:48:515
39403949946720,29cyclictest0-21swapper/1023:06:502
39403949946620,28cyclictest0-21swapper/1023:25:522
39403949946517,29cyclictest0-21swapper/1023:27:302
39404099946112,29cyclictest0-21swapper/1319:42:525
394036099461460,1cyclictest69750irq/159-i91522:44:081
39404099945811,29cyclictest0-21swapper/1320:16:515
39404099945811,29cyclictest0-21swapper/1320:16:515
39403949945817,30cyclictest0-21swapper/1022:52:292
39403949945817,30cyclictest0-21swapper/1022:52:292
3940371994587,30cyclictest0-21swapper/420:59:5210
3940394994569,29cyclictest0-21swapper/1023:07:312
39403849945611,30cyclictest0-21swapper/720:05:0813
3940404994549,29cyclictest0-21swapper/1222:09:084
394038999454453,1cyclictest0-21swapper/921:58:0815
394038999453452,1cyclictest4154279-21kworker/9:5+i915-unordered00:18:0815
394036999452452,0cyclictest0-21swapper/321:58:089
3940401994510,29cyclictest0-21swapper/1121:22:313
3940401994510,29cyclictest0-21swapper/1120:37:303
394036999451451,0cyclictest0-21swapper/320:58:089
3940417994500,30cyclictest0-21swapper/1521:06:537
3940409994496,30cyclictest0-21swapper/1320:28:085
3940394994491,30cyclictest0-21swapper/1023:49:502
3940394994490,29cyclictest0-21swapper/1023:59:512
3940394994480,445cyclictest0-21swapper/1023:37:512
3940394994480,30cyclictest0-21swapper/1022:30:292
3940394994480,29cyclictest0-21swapper/1023:45:512
394041299447446,1cyclictest0-21swapper/1400:15:206
394041299446445,1cyclictest69750irq/159-i91521:15:086
39404179944526,417cyclictest0-21swapper/1523:36:537
39404019944526,418cyclictest0-21swapper/1100:05:533
39404019944523,419cyclictest0-21swapper/1123:12:303
39403719944523,421cyclictest0-21swapper/420:17:2910
39403719944523,421cyclictest0-21swapper/420:17:2910
39404179944423,419cyclictest0-21swapper/1521:44:517
39404179944423,419cyclictest0-21swapper/1520:01:527
39404099944424,417cyclictest0-21swapper/1300:27:305
39404019944423,417cyclictest0-21swapper/1122:17:293
39403949944424,418cyclictest0-21swapper/1021:47:492
39403949944424,417cyclictest0-21swapper/1020:46:302
39403719944424,419cyclictest0-21swapper/423:30:2810
394036099444443,1cyclictest69750irq/159-i91500:18:081
39404179944323,419cyclictest0-21swapper/1521:28:547
3940404994430,29cyclictest0-21swapper/1219:53:084
394040199443443,0cyclictest0-21swapper/1122:40:503
39404019944325,417cyclictest0-21swapper/1122:59:303
39404019944325,417cyclictest0-21swapper/1122:59:303
39404019944322,420cyclictest0-21swapper/1120:34:523
39404019944322,419cyclictest0-21swapper/1121:06:303
394036099443443,0cyclictest69750irq/159-i91521:58:081
394040499442439,3cyclictest4101900-21kworker/u64:1+events_unbound23:23:084
394040199442439,3cyclictest1818-21snmpd00:07:193
39404019944223,418cyclictest0-21swapper/1121:31:303
39404019944222,419cyclictest0-21swapper/1123:04:303
39403659944226,416cyclictest0-21swapper/221:24:088
39404099944121,420cyclictest0-21swapper/1323:51:295
39404099944120,418cyclictest0-21swapper/1323:55:295
394040199441439,1cyclictest65450usb-storage19:38:523
39404019944122,418cyclictest0-21swapper/1123:35:303
39404019944122,418cyclictest0-21swapper/1123:23:293
39404019944119,420cyclictest0-21swapper/1119:57:303
39403869944123,417cyclictest0-21swapper/823:51:5214
394040999440437,2cyclictest3992157-21kworker/u64:5+events_unbound21:03:315
39404099944021,416cyclictest0-21swapper/1322:15:315
39404099944020,419cyclictest0-21swapper/1300:04:515
39404099944020,419cyclictest0-21swapper/1300:01:295
39404019944022,417cyclictest0-21swapper/1123:31:523
39404019944022,417cyclictest0-21swapper/1100:00:503
39404019944019,419cyclictest0-21swapper/1122:04:313
39403949944022,416cyclictest0-21swapper/1021:56:502
39403849944020,419cyclictest0-21swapper/719:17:0313
394037199440437,2cyclictest3954133-21kworker/u64:6+events_unbound19:35:3110
39403719944020,419cyclictest0-21swapper/423:38:5210
39404019943921,418cyclictest0-21swapper/1120:21:513
39404019943921,418cyclictest0-21swapper/1120:21:513
39404019943920,418cyclictest0-21swapper/1100:28:513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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