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2026-04-20 - 08:14
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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 Mon Apr 20, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28985699660658,2cyclictest318761-21kworker/3:1+i915-unordered19:55:599
2898809955549,505cyclictest0-21swapper/920:36:5915
2898719952716,28cyclictest88-21ksoftirqd/721:24:5913
289906994980,467cyclictest0-21swapper/1522:10:597
2899069949133,457cyclictest0-21swapper/1522:04:597
289903994879,476cyclictest0-21swapper/1422:35:596
289903994871,29cyclictest0-21swapper/1422:17:596
289890994858,59cyclictest0-21swapper/1120:39:203
2899039948023,456cyclictest0-21swapper/1423:46:596
2899039947940,438cyclictest0-21swapper/1400:10:596
28990699475473,1cyclictest387283-21kworker/15:0+i915-unordered21:24:597
2898619947424,29cyclictest0-21swapper/420:49:4410
2899039946916,453cyclictest0-21swapper/1421:39:596
2898809946419,29cyclictest0-21swapper/920:33:2115
28985699463463,0cyclictest0-21swapper/321:39:599
28989499462431,31cyclictest0-21swapper/1221:12:594
289861994613,59cyclictest0-21swapper/423:38:4410
289845994574,29cyclictest0-21swapper/019:39:210
289845994574,29cyclictest0-21swapper/019:39:210
28989899452452,0cyclictest0-21swapper/1300:20:595
289885994481,28cyclictest0-21swapper/1020:06:202
2898809944725,28cyclictest0-21swapper/923:56:2115
2898809944721,29cyclictest0-21swapper/920:41:2115
2898809944720,30cyclictest0-21swapper/921:51:4315
2898809944717,29cyclictest0-21swapper/923:13:2115
2898619944720,30cyclictest0-21swapper/419:59:2210
2898909944626,417cyclictest0-21swapper/1120:22:213
2898809944623,29cyclictest0-21swapper/922:12:4315
2898809944622,29cyclictest0-21swapper/922:51:2115
2898809944517,29cyclictest0-21swapper/920:58:4315
2898639944517,30cyclictest0-21swapper/500:18:2111
2898639944515,29cyclictest0-21swapper/523:22:2011
2898719944419,419cyclictest0-21swapper/720:18:4413
2898639944416,29cyclictest0-21swapper/521:47:2211
28986399443441,2cyclictest65450usb-storage22:37:5911
2898639944317,30cyclictest0-21swapper/520:23:2211
2898639944210,30cyclictest0-21swapper/521:43:4511
289863994419,30cyclictest0-21swapper/523:36:4311
2898459944122,419cyclictest0-21swapper/020:29:220
2898949944023,416cyclictest0-21swapper/1223:02:594
2898809944019,418cyclictest0-21swapper/920:23:4415
2898619944013,30cyclictest0-21swapper/423:16:4210
2898809943920,416cyclictest0-21swapper/920:27:2115
2898679943918,420cyclictest0-21swapper/620:44:4312
2898679943917,421cyclictest0-21swapper/623:08:2012
2898679943917,421cyclictest0-21swapper/621:25:4112
2898639943911,30cyclictest0-21swapper/521:33:4511
2898859943812,29cyclictest0-21swapper/1023:09:212
289863994389,30cyclictest0-21swapper/523:05:4511
289863994388,428cyclictest0-21swapper/522:08:2011
28984599437436,0cyclictest0-21swapper/020:22:590
2898949943620,415cyclictest0-21swapper/1219:40:594
2898949943620,415cyclictest0-21swapper/1219:40:594
2898809943618,416cyclictest0-21swapper/920:12:4115
289863994368,426cyclictest0-21swapper/521:57:4311
289845994358,30cyclictest0-21swapper/023:19:200
2899039943412,419cyclictest0-21swapper/1422:54:216
2898859943413,420cyclictest0-21swapper/1020:11:202
28986799434433,1cyclictest1777-21ntpd21:01:3312
289861994347,29cyclictest0-21swapper/421:55:2010
2899069943314,418cyclictest0-21swapper/1522:49:447
2898909943312,419cyclictest0-21swapper/1100:16:213
28988099433431,2cyclictest1818-21snmpd19:23:3315
289861994337,29cyclictest0-21swapper/423:13:4110
2899069943213,418cyclictest0-21swapper/1520:15:437
2899069943212,419cyclictest0-21swapper/1520:50:437
2898619943214,417cyclictest0-21swapper/421:03:5510
28985699432431,1cyclictest0-21swapper/321:21:599
2898949943117,413cyclictest0-21swapper/1222:42:594
2898949943016,413cyclictest0-21swapper/1221:49:594
28985699430428,2cyclictest0-21swapper/300:22:339
28990699429429,0cyclictest26550irq/134-xhci_hcd22:37:597
289898994296,30cyclictest0-21swapper/1319:52:595
289885994298,420cyclictest0-21swapper/1020:40:222
28988599429427,1cyclictest0-21swapper/1022:37:592
289906994278,418cyclictest0-21swapper/1522:27:217
289906994278,418cyclictest0-21swapper/1522:27:217
289898994279,417cyclictest0-21swapper/1319:55:205
289890994278,416cyclictest0-21swapper/1119:40:223
289890994278,416cyclictest0-21swapper/1119:40:223
289890994277,419cyclictest0-21swapper/1120:46:223
289885994277,419cyclictest0-21swapper/1022:56:202
2898619942715,412cyclictest0-21swapper/419:41:5910
2898619942715,412cyclictest0-21swapper/419:41:5910
28985699427425,2cyclictest0-21swapper/320:46:599
289845994276,420cyclictest0-21swapper/021:48:430
289906994260,29cyclictest0-21swapper/1520:56:437
289903994266,419cyclictest0-21swapper/1421:01:206
289894994264,30cyclictest0-21swapper/1221:05:594
289856994260,416cyclictest386050-21ntpq21:04:209
289906994254,420cyclictest0-21swapper/1500:07:437
289890994254,420cyclictest0-21swapper/1120:08:433
289890994250,30cyclictest0-21swapper/1119:37:453
289890994250,30cyclictest0-21swapper/1119:37:453
2898859942526,398cyclictest0-21swapper/1019:19:222
2898639942514,410cyclictest0-21swapper/519:49:5911
289898994245,418cyclictest0-21swapper/1320:55:225
28985699424422,1cyclictest479508-21kworker/3:1+i915-unordered23:04:219
28990399423423,0cyclictest0-21swapper/1421:24:596
289898994235,417cyclictest0-21swapper/1321:31:415
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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