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2026-07-12 - 19:34
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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 Sun Jul 12, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26591589954910,535cyclictest0-21swapper/1021:04:242
2659181995391,537cyclictest0-21swapper/1522:40:247
2659129995220,522cyclictest0-21swapper/220:04:248
265913499505504,1cyclictest2735599-21kworker/3:4+i915-unordered23:20:249
2659129995022,499cyclictest0-21swapper/222:39:248
265912999485482,2cyclictest2761000-21kworker/2:0+i915-unordered21:04:248
26591269947021,28cyclictest0-21swapper/120:41:091
26591269946922,30cyclictest0-21swapper/121:15:081
26591269946820,29cyclictest0-21swapper/119:58:071
26591299946621,58cyclictest0-21swapper/221:53:248
26591819946517,29cyclictest0-21swapper/1522:03:467
26591799946314,29cyclictest0-21swapper/1422:50:466
26591819946116,30cyclictest0-21swapper/1521:35:247
26591299946118,30cyclictest0-21swapper/221:09:248
265913499460460,0cyclictest2897655-21kworker/3:1+i915-unordered23:34:249
265915299453452,1cyclictest2744709-21kworker/8:1+i915-unordered21:02:2414
26591589945223,30cyclictest0-21swapper/1020:58:092
2659146994502,29cyclictest0-21swapper/621:21:0612
2659181994492,30cyclictest0-21swapper/1520:41:477
265917099449446,2cyclictest2617926-21kworker/u64:3+events_unbound20:09:474
26591269944922,30cyclictest0-21swapper/123:07:461
26591589944825,421cyclictest0-21swapper/1022:31:102
26591589944825,421cyclictest0-21swapper/1022:31:102
26591269944824,29cyclictest0-21swapper/100:25:061
26591269944820,30cyclictest0-21swapper/119:20:461
2659181994470,30cyclictest0-21swapper/1521:20:457
265914699447447,0cyclictest0-21swapper/600:01:4612
26591269944720,30cyclictest0-21swapper/122:49:101
26591269944720,30cyclictest0-21swapper/121:51:071
26591269944720,29cyclictest0-21swapper/119:10:071
26591589944623,420cyclictest0-21swapper/1021:17:472
26591269944620,29cyclictest0-21swapper/122:35:471
26591269944620,29cyclictest0-21swapper/122:35:471
26591269944620,29cyclictest0-21swapper/119:33:071
26591269944520,29cyclictest0-21swapper/123:40:091
26591269944520,28cyclictest0-21swapper/123:13:091
26591269944519,29cyclictest0-21swapper/119:45:451
26591269944519,29cyclictest0-21swapper/119:45:451
26591589944423,418cyclictest0-21swapper/1020:03:472
26591819944326,28cyclictest0-21swapper/1519:07:247
26591299944322,29cyclictest0-21swapper/219:09:248
265912299443442,1cyclictest69750irq/159-i91521:02:240
26591589944221,420cyclictest0-21swapper/1019:53:472
26591469944123,417cyclictest0-21swapper/620:11:4612
265913799441441,0cyclictest0-21swapper/420:09:4710
2659126994410,30cyclictest0-21swapper/122:15:461
26591799944014,29cyclictest0-21swapper/1422:42:086
26591799943811,30cyclictest0-21swapper/1419:32:466
265915299438437,1cyclictest0-21swapper/820:04:2414
26591269943819,417cyclictest0-21swapper/121:19:471
2659122994380,24cyclictest0-21swapper/020:25:090
2659179994379,29cyclictest0-21swapper/1421:43:476
26591469943622,413cyclictest0-21swapper/621:38:0912
265912999436435,1cyclictest0-21swapper/222:10:248
2659179994348,29cyclictest0-21swapper/1422:02:476
2659129994346,30cyclictest0-21swapper/223:21:208
26591669943319,413cyclictest0-21swapper/1123:20:243
26591669943317,415cyclictest0-21swapper/1119:43:243
26591669943317,415cyclictest0-21swapper/1119:43:243
26591669943312,418cyclictest0-21swapper/1120:22:463
2659179994327,29cyclictest0-21swapper/1400:09:096
26591819943114,416cyclictest0-21swapper/1521:51:197
26591469943113,416cyclictest0-21swapper/620:26:4812
2659181994304,30cyclictest0-21swapper/1523:13:467
2659166994309,419cyclictest0-21swapper/1122:18:073
26591669943015,415cyclictest0-21swapper/1121:54:243
265914899430427,3cyclictest0-21swapper/700:00:5813
2659179994298,29cyclictest0-21swapper/1400:20:456
2659166994298,420cyclictest0-21swapper/1122:06:103
265915299429427,2cyclictest2925299-21kworker/8:1+i915-unordered00:07:2414
2659146994299,419cyclictest0-21swapper/620:07:0912
26591469942911,417cyclictest0-21swapper/620:33:4512
2659166994287,419cyclictest0-21swapper/1121:49:473
2659158994280,29cyclictest0-21swapper/1023:11:462
2659148994280,30cyclictest0-21swapper/723:26:2013
265912299428427,1cyclictest69750irq/159-i91520:04:240
2659181994273,29cyclictest0-21swapper/1522:19:467
2659158994270,30cyclictest0-21swapper/1000:17:462
265914699427424,2cyclictest2924853-21kworker/6:0+pm00:29:2012
265914699427424,2cyclictest2677380-21kworker/u64:1+events_unbound19:43:0912
265914699427424,2cyclictest2677380-21kworker/u64:1+events_unbound19:43:0912
2659122994270,426cyclictest0-21swapper/019:08:580
265915699426424,1cyclictest0-21swapper/919:08:5815
265913499426422,3cyclictest2613429-21kworker/u64:0+events_unbound19:55:249
2659158994250,29cyclictest0-21swapper/1022:26:082
2659158994250,29cyclictest0-21swapper/1022:26:082
265914899425425,0cyclictest0-21swapper/722:00:2413
26591819942427,396cyclictest0-21swapper/1523:04:097
26591819942426,397cyclictest0-21swapper/1519:17:477
26591819942426,397cyclictest0-21swapper/1519:13:477
2659181994240,29cyclictest0-21swapper/1523:08:077
2659181994240,29cyclictest0-21swapper/1522:12:477
2659181994240,29cyclictest0-21swapper/1521:38:477
26591589942424,399cyclictest0-21swapper/1021:29:472
26591589942424,396cyclictest0-21swapper/1023:43:472
26591819942324,398cyclictest0-21swapper/1523:53:457
26591589942325,396cyclictest0-21swapper/1021:22:102
26591589942325,395cyclictest0-21swapper/1019:11:472
26591589942324,398cyclictest0-21swapper/1000:12:092
26591589942323,397cyclictest0-21swapper/1023:03:462
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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