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2026-08-24 - 01:56
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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 Aug 24, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26810599952810,0cyclictest0-21swapper/720:49:0313
268108899523522,1cyclictest0-21swapper/1422:36:036
26810599951213,497cyclictest0-21swapper/720:57:0313
2681040995104,504cyclictest0-21swapper/219:18:038
2681086994944,489cyclictest0-21swapper/1322:22:035
268108899487486,1cyclictest2738022-21kworker/14:0+i915-unordered20:13:036
26810559948738,448cyclictest0-21swapper/621:07:0312
268108699486484,2cyclictest2623071-21kworker/13:1+i915-unordered19:49:035
268107399485484,1cyclictest2693767-21kworker/10:0+i915-unordered19:18:032
268106699483480,2cyclictest2798542-21kworker/9:0+i915-unordered21:37:0315
268105599482482,0cyclictest0-21swapper/621:21:0312
268105599482482,0cyclictest0-21swapper/621:21:0312
2681051994803,58cyclictest0-21swapper/521:29:2611
26810519947726,29cyclictest0-21swapper/519:51:2411
268108699473472,1cyclictest0-21swapper/1300:07:035
268108699473472,1cyclictest0-21swapper/1300:07:035
268107799473472,1cyclictest0-21swapper/1121:27:033
268108699472471,1cyclictest2640327-21kworker/13:0+i915-unordered21:27:035
26810519947224,29cyclictest0-21swapper/523:40:4611
26810519947121,30cyclictest0-21swapper/500:11:2411
268104499468164,304cyclictest0-21swapper/319:32:269
268108699467466,1cyclictest2810426-21kworker/13:2+i915-unordered23:09:035
26810559946525,28cyclictest0-21swapper/619:42:0312
268104499465464,1cyclictest69750irq/159-i91521:27:039
26810869946318,29cyclictest0-21swapper/1322:52:035
2681082994589,30cyclictest0-21swapper/1223:24:254
26810739945822,29cyclictest0-21swapper/1023:53:032
26810739945310,30cyclictest0-21swapper/1023:08:032
2681059994511,30cyclictest1304-21NetworkManager23:38:2613
2681032994514,28cyclictest0-21swapper/019:18:480
268105599450447,3cyclictest0-21swapper/619:46:0312
2681051994501,30cyclictest0-21swapper/520:01:2511
2681051994500,30cyclictest0-21swapper/521:09:4811
268104999450447,3cyclictest2882785-21kworker/4:0+pm23:24:1510
2681086994494,30cyclictest0-21swapper/1319:43:035
2681059994491,29cyclictest0-21swapper/723:18:2413
2681044994490,448cyclictest0-21swapper/322:37:039
268105599448446,2cyclictest2850722-21kworker/6:0+i915-unordered22:36:0312
268104499448445,2cyclictest2880603-21kworker/3:1+i915-unordered23:10:269
26810599944628,416cyclictest0-21swapper/723:24:4813
268103299446443,2cyclictest2854670-21kworker/0:2+events23:10:470
2681059994450,27cyclictest0-21swapper/722:57:4713
26810449944527,417cyclictest0-21swapper/322:41:469
268103699445444,1cyclictest0-21swapper/121:37:031
26810329944526,418cyclictest0-21swapper/020:33:480
268108699444443,1cyclictest1818-21snmpd23:45:575
26810599944424,419cyclictest0-21swapper/723:02:4713
26810939944325,417cyclictest0-21swapper/1520:59:587
268107799443441,1cyclictest2927162-21kworker/11:2+i915-unordered00:13:263
26810639944324,418cyclictest0-21swapper/822:15:2714
2681063994431,29cyclictest0-21swapper/800:23:2514
26810599944324,418cyclictest0-21swapper/721:38:4713
26810599944323,420cyclictest0-21swapper/719:39:4813
268104099443443,0cyclictest0-21swapper/222:57:148
26810889944222,419cyclictest0-21swapper/1421:38:256
26810889944221,420cyclictest0-21swapper/1422:40:276
26810829944217,29cyclictest0-21swapper/1219:06:464
26810889944121,419cyclictest0-21swapper/1421:42:256
26810889944121,419cyclictest0-21swapper/1421:01:246
268108699441441,0cyclictest2680556-21kworker/13:4+i915-unordered19:39:035
26810329944122,418cyclictest0-21swapper/023:51:470
26810889943919,419cyclictest0-21swapper/1422:01:476
26810889943918,420cyclictest0-21swapper/1421:24:266
26810889943918,420cyclictest0-21swapper/1421:24:266
268107799439437,2cyclictest2770148-21kworker/u64:13+events_unbound21:51:033
26810739943924,414cyclictest0-21swapper/1020:18:462
26810559943922,416cyclictest0-21swapper/621:33:0312
26810889943817,420cyclictest0-21swapper/1421:32:256
26810889943817,420cyclictest0-21swapper/1419:37:266
26810889943816,421cyclictest0-21swapper/1422:24:266
26810639943826,412cyclictest0-21swapper/800:07:4514
26810639943826,412cyclictest0-21swapper/800:07:4514
26810559943823,414cyclictest0-21swapper/623:19:0312
26810329943825,412cyclictest0-21swapper/023:47:030
26810329943822,415cyclictest0-21swapper/019:33:480
26810329943820,418cyclictest0-21swapper/021:12:480
26810329943820,418cyclictest0-21swapper/021:12:480
26810889943717,419cyclictest0-21swapper/1423:59:486
26810889943716,420cyclictest0-21swapper/1419:34:256
26810639943718,419cyclictest0-21swapper/822:00:4614
26810639943717,418cyclictest0-21swapper/819:30:4614
26810519943718,417cyclictest0-21swapper/521:58:2511
2681051994370,30cyclictest0-21swapper/519:19:5911
26810889943617,418cyclictest0-21swapper/1421:13:256
26810889943617,418cyclictest0-21swapper/1421:13:256
26810639943623,412cyclictest0-21swapper/800:18:4614
26810639943619,416cyclictest0-21swapper/822:25:2614
26810639943617,419cyclictest0-21swapper/823:13:4614
26810639943614,421cyclictest0-21swapper/820:54:2514
26810409943616,418cyclictest0-21swapper/223:55:268
268103299436432,3cyclictest2798503-21kworker/0:2+events21:34:470
26810889943515,419cyclictest0-21swapper/1423:52:456
26810889943514,420cyclictest0-21swapper/1400:24:256
268107799435433,2cyclictest0-21swapper/1120:39:033
26810739943523,411cyclictest0-21swapper/1020:58:032
26810639943516,418cyclictest0-21swapper/822:23:4514
268104499435434,1cyclictest0-21swapper/300:13:269
26810889943414,419cyclictest0-21swapper/1423:08:476
26810889943414,419cyclictest0-21swapper/1420:38:466
26810889943414,419cyclictest0-21swapper/1420:06:446
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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