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2026-06-11 - 19:18
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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 Thu Jun 11, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
36824319957410,27cyclictest0-21swapper/1420:54:236
368239899509508,1cyclictest3767544-21kworker/6:1+i915-unordered20:54:2312
368242299505504,1cyclictest3896236-21kworker/12:2+i915-unordered23:56:234
36823779949523,58cyclictest0-21swapper/121:03:231
368237799485484,1cyclictest3703267-21kworker/1:3+i915-unordered19:40:231
368238999484454,30cyclictest0-21swapper/423:56:2310
368239899481481,0cyclictest3831821-21kworker/6:0+i915-unordered22:11:2312
36824089947426,28cyclictest0-21swapper/922:14:4515
36824009946913,58cyclictest0-21swapper/723:39:0713
3682418994650,56cyclictest0-21swapper/1121:26:233
36824089946516,29cyclictest0-21swapper/921:22:4515
36824009946510,59cyclictest0-21swapper/700:35:4413
368237799461460,1cyclictest0-21swapper/120:10:231
368237799461460,1cyclictest0-21swapper/120:10:231
36823779946116,30cyclictest0-21swapper/120:33:231
368241899460458,1cyclictest3751345-21kworker/11:1+i915-unordered20:36:233
36824089945811,29cyclictest0-21swapper/921:56:0815
3682431994550,11cyclictest0-21swapper/1400:23:236
368238599452452,0cyclictest0-21swapper/300:05:449
368238599450449,1cyclictest0-21swapper/320:36:239
36823819944921,30cyclictest0-21swapper/219:35:448
368239499446444,1cyclictest3863953-21kworker/5:1+i915-unordered23:03:2311
368239499446444,1cyclictest3863953-21kworker/5:1+i915-unordered23:03:2311
36823949944626,419cyclictest0-21swapper/522:22:4411
36824089944523,419cyclictest0-21swapper/920:49:0615
36823949944424,419cyclictest0-21swapper/522:08:4511
36824319944324,418cyclictest0-21swapper/1423:07:076
36824319944324,418cyclictest0-21swapper/1423:07:076
36824319944323,418cyclictest0-21swapper/1420:09:056
36824319944323,418cyclictest0-21swapper/1420:09:056
36824089944323,417cyclictest0-21swapper/900:22:0715
36824089944322,420cyclictest0-21swapper/921:58:0515
36824089944322,417cyclictest0-21swapper/921:03:0715
36824089944320,422cyclictest0-21swapper/922:34:0515
36823949944324,419cyclictest0-21swapper/519:51:0711
36823949944322,420cyclictest0-21swapper/523:11:4511
3682377994430,30cyclictest0-21swapper/123:29:221
36824319944223,418cyclictest0-21swapper/1423:11:066
36824319944221,420cyclictest0-21swapper/1423:41:456
36824319944221,420cyclictest0-21swapper/1422:13:446
36824319944220,421cyclictest0-21swapper/1423:59:076
36824089944221,417cyclictest0-21swapper/920:19:0715
36824089944220,419cyclictest0-21swapper/920:58:0715
36824319944119,421cyclictest0-21swapper/1423:36:456
36823949944123,417cyclictest0-21swapper/522:20:0811
36823949944122,418cyclictest0-21swapper/519:57:0711
36823949944122,417cyclictest0-21swapper/522:02:4611
36824319944019,420cyclictest0-21swapper/1400:20:456
368240899440438,2cyclictest3827953-21kworker/9:0+pm22:09:5415
36824089944020,417cyclictest0-21swapper/920:04:4515
36824089944020,417cyclictest0-21swapper/920:04:4515
3682400994400,29cyclictest0-21swapper/720:06:2313
3682400994400,29cyclictest0-21swapper/720:06:2313
36823949944020,419cyclictest0-21swapper/521:51:0711
36824089943919,418cyclictest0-21swapper/923:52:0715
36824089943919,418cyclictest0-21swapper/921:09:0615
36824089943918,419cyclictest0-21swapper/900:09:4315
36823949943921,417cyclictest0-21swapper/520:13:0611
36823949943921,417cyclictest0-21swapper/520:13:0611
36824089943817,420cyclictest0-21swapper/923:31:0615
36824089943817,419cyclictest0-21swapper/921:46:4515
36824009943810,30cyclictest0-21swapper/719:09:4413
3682389994380,27cyclictest0-21swapper/421:53:2310
36824319943717,417cyclictest0-21swapper/1422:37:446
36824319943717,417cyclictest0-21swapper/1422:09:446
36824089943718,416cyclictest0-21swapper/921:16:2315
36823899943721,415cyclictest0-21swapper/423:48:2210
36824089943613,420cyclictest0-21swapper/923:25:4515
368238199436433,3cyclictest3738132-21kworker/u64:8+events_unbound20:34:238
36823819943620,415cyclictest0-21swapper/221:21:238
36823779943625,410cyclictest0-21swapper/121:38:231
36824319943515,418cyclictest0-21swapper/1421:40:086
36824319943513,421cyclictest0-21swapper/1423:15:056
368239499435434,1cyclictest0-21swapper/521:07:4611
368239499435433,1cyclictest0-21swapper/521:15:0811
36823819943520,414cyclictest0-21swapper/222:45:238
36824339943414,419cyclictest0-21swapper/1500:27:437
36824279943414,419cyclictest0-21swapper/1323:28:075
36823899943419,414cyclictest0-21swapper/422:46:2310
36823779943420,413cyclictest0-21swapper/120:16:231
36823779943420,413cyclictest0-21swapper/120:16:231
36824279943313,420cyclictest0-21swapper/1320:02:185
368241899433430,2cyclictest3908372-21kworker/11:0+events00:05:443
36824009943312,420cyclictest0-21swapper/722:47:4613
36824339943212,419cyclictest0-21swapper/1520:56:057
36824339943212,419cyclictest0-21swapper/1520:30:067
36823859943213,418cyclictest0-21swapper/320:41:089
36823859943211,420cyclictest0-21swapper/323:17:449
36823859943211,420cyclictest0-21swapper/321:32:449
36823779943217,414cyclictest0-21swapper/121:15:231
36824339943112,418cyclictest0-21swapper/1522:03:087
36824339943111,419cyclictest0-21swapper/1521:31:067
36824279943112,418cyclictest0-21swapper/1300:36:065
368239899431429,1cyclictest3900175-21kworker/6:2+i915-unordered00:21:2312
36823859943110,420cyclictest0-21swapper/321:55:449
36824339943013,416cyclictest0-21swapper/1520:21:067
36824279943010,419cyclictest0-21swapper/1322:59:455
36824279943010,419cyclictest0-21swapper/1322:59:455
3682385994309,420cyclictest0-21swapper/320:16:089
3682385994309,420cyclictest0-21swapper/320:16:089
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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