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2026-06-12 - 23:02
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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 12, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
361765499692296,395cyclictest0-21swapper/719:14:2113
3617682995354,44cyclictest0-21swapper/1321:46:215
3617682995354,44cyclictest0-21swapper/1321:46:215
36176549952019,499cyclictest0-21swapper/700:03:2113
361764899489486,2cyclictest3656251-21kworker/5:6+i915-unordered21:11:2111
36176599948824,463cyclictest97-21ksoftirqd/800:16:2114
361768599487486,1cyclictest0-21swapper/1400:16:216
361765299486485,1cyclictest3876420-21kworker/6:0+i915-unordered00:16:2112
361765299484483,1cyclictest3635172-21kworker/6:2+i915-unordered19:28:2112
361769099476474,2cyclictest3631131-21kworker/15:1+i915-unordered20:13:217
36176599947210,462cyclictest0-21swapper/823:48:2114
36176329946521,29cyclictest0-21swapper/123:23:031
3617659994647,456cyclictest0-21swapper/822:35:2114
3617673994630,3cyclictest0-21swapper/1100:18:323
36176679946318,30cyclictest0-21swapper/1000:18:212
36176829946213,30cyclictest0-21swapper/1320:43:045
361766299462459,2cyclictest3735235-21kworker/u64:10+events_unbound21:52:4415
361768299460458,2cyclictest0-21swapper/1321:11:215
3617662994600,459cyclictest0-21swapper/923:44:4415
3617659994592,456cyclictest0-21swapper/820:35:2114
36176549945910,29cyclictest0-21swapper/722:55:0313
36176329945713,30cyclictest0-21swapper/100:00:421
3617654994568,29cyclictest0-21swapper/720:54:0513
36176329945610,29cyclictest0-21swapper/120:26:071
361762999456456,0cyclictest69750irq/159-i91500:16:210
361765999455453,1cyclictest3757776-21kworker/8:2+i915-unordered21:53:2114
3617654994546,446cyclictest0-21swapper/723:37:0613
361768599453452,1cyclictest0-21swapper/1419:28:216
361763999453449,3cyclictest1818-21snmpd00:18:329
3617682994526,28cyclictest0-21swapper/1321:26:435
3617682994525,29cyclictest0-21swapper/1323:15:425
3617654994525,28cyclictest0-21swapper/720:15:4313
3617659994460,445cyclictest0-21swapper/820:47:4414
36176329944622,30cyclictest0-21swapper/121:22:431
3617639994450,30cyclictest0-21swapper/300:09:219
3617632994453,29cyclictest0-21swapper/121:51:211
3617632994453,29cyclictest0-21swapper/121:51:211
36176329944519,30cyclictest0-21swapper/119:36:441
3617632994443,29cyclictest0-21swapper/122:23:211
361766799442441,1cyclictest0-21swapper/1022:37:442
361762999442441,1cyclictest69750irq/159-i91523:48:210
361766299440440,0cyclictest0-21swapper/923:01:4415
36176329944021,30cyclictest0-21swapper/120:35:041
36176829943913,30cyclictest0-21swapper/1320:53:425
3617659994390,438cyclictest0-21swapper/819:28:2114
36176679943814,29cyclictest115-21ksoftirqd/1022:30:212
3617648994380,436cyclictest0-21swapper/519:24:5611
36176299943716,418cyclictest0-21swapper/023:32:040
36176679943619,416cyclictest0-21swapper/1020:21:212
3617632994369,29cyclictest0-21swapper/122:11:421
36176829943515,419cyclictest0-21swapper/1321:15:445
36176829943515,419cyclictest0-21swapper/1319:38:445
36176829943514,420cyclictest0-21swapper/1320:25:445
36176549943510,29cyclictest0-21swapper/700:30:4313
36176549943510,29cyclictest0-21swapper/700:30:4313
3617682994348,29cyclictest0-21swapper/1321:06:035
36176829943413,420cyclictest0-21swapper/1320:48:425
36176629943421,413cyclictest0-21swapper/921:14:2115
361764899434404,30cyclictest0-21swapper/500:26:2111
361764899434404,30cyclictest0-21swapper/500:26:2111
36176399943421,413cyclictest0-21swapper/320:58:219
361762999434434,0cyclictest0-21swapper/023:04:060
361762999434433,1cyclictest69750irq/159-i91522:35:210
36176829943312,420cyclictest0-21swapper/1323:36:425
3617632994338,30cyclictest0-21swapper/119:18:031
36176829943216,414cyclictest0-21swapper/1321:41:055
36176829943216,414cyclictest0-21swapper/1321:41:055
3617667994326,425cyclictest115-21ksoftirqd/1019:31:212
36176629943216,415cyclictest0-21swapper/923:30:2115
36176629943216,415cyclictest0-21swapper/923:09:2115
3617632994326,29cyclictest0-21swapper/119:09:041
36176329943220,411cyclictest0-21swapper/123:11:211
3617667994307,422cyclictest0-21swapper/1023:47:422
3617654994303,29cyclictest0-21swapper/719:25:0713
361763999430430,0cyclictest0-21swapper/323:40:559
361766799429428,1cyclictest0-21swapper/1023:11:212
361766299429426,2cyclictest3635310-21kworker/9:2+pm19:30:5315
361765299428426,1cyclictest3893592-21kworker/6:1+i915-unordered00:32:0512
361765299428426,1cyclictest3893592-21kworker/6:1+i915-unordered00:32:0512
361762999428427,1cyclictest69750irq/159-i91520:35:210
361768599427426,1cyclictest0-21swapper/1400:32:056
361768599427426,1cyclictest0-21swapper/1400:32:056
3617654994270,30cyclictest0-21swapper/720:42:0413
3617682994255,418cyclictest0-21swapper/1320:29:445
3617673994256,418cyclictest0-21swapper/1122:06:213
3617654994250,29cyclictest0-21swapper/720:11:4413
36176359942513,411cyclictest0-21swapper/222:16:218
361762999425424,1cyclictest69750irq/159-i91521:53:210
3617662994238,414cyclictest0-21swapper/921:30:2115
3617654994233,418cyclictest0-21swapper/723:18:0613
36176549942324,396cyclictest0-21swapper/723:48:4313
361765299423421,1cyclictest3816965-21kworker/6:0+i915-unordered23:19:0512
36176679942225,393cyclictest0-21swapper/1019:27:172
361763299422421,1cyclictest0-21swapper/100:06:321
361763299422419,2cyclictest3825459-21kworker/1:2+events23:44:441
361768599421421,0cyclictest0-21swapper/1423:19:056
361768599421418,3cyclictest3698361-21kworker/14:2+events20:44:426
361765299421419,1cyclictest3579264-21kworker/6:6+i915-unordered19:12:0712
361763599421421,0cyclictest3842392-21kworker/2:2+pm00:18:328
361765299420417,2cyclictest3770249-21kworker/6:1+events23:00:0512
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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