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2026-01-12 - 13:54
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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 Jan 12, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
132693995658,28cyclictest0-21swapper/622:53:0412
1327339953715,521cyclictest0-21swapper/1523:56:047
1326939952813,514cyclictest0-21swapper/619:37:0412
13272899503502,1cyclictest303518-21kworker/14:1+i915-unordered22:53:046
13267799480480,0cyclictest226620-21kworker/2:2+i915-unordered21:06:048
1326869947314,59cyclictest0-21swapper/422:13:4710
1327289947013,456cyclictest0-21swapper/1422:25:046
1327289947013,456cyclictest0-21swapper/1422:25:046
13272899465464,1cyclictest145494-21kworker/14:0+i915-unordered19:37:046
13271599464464,0cyclictest0-21swapper/1121:10:043
13272899460457,1cyclictest339791-21kworker/14:0+i915-unordered23:23:046
1327089945528,28cyclictest0-21swapper/1020:39:482
13273399454453,1cyclictest343910-21kworker/15:0+i915-unordered23:38:047
1327089944924,28cyclictest0-21swapper/1023:39:272
132724994488,1cyclictest388745-21kworker/13:1+i915-unordered00:36:045
1326709944719,30cyclictest0-21swapper/019:29:500
1326869944619,30cyclictest0-21swapper/400:08:2710
13272899445445,0cyclictest0-21swapper/1419:46:046
13272899445445,0cyclictest0-21swapper/1419:46:046
1326869944516,29cyclictest0-21swapper/420:52:4710
13272499444442,2cyclictest0-21swapper/1319:13:595
1327289944325,28cyclictest0-21swapper/1400:01:036
1327089944321,421cyclictest0-21swapper/1022:43:462
13269799442441,1cyclictest0-21swapper/723:38:0413
1327089944122,29cyclictest0-21swapper/1020:58:042
1327159943720,416cyclictest0-21swapper/1100:33:483
13272899436436,0cyclictest0-21swapper/1419:20:046
1326939943616,419cyclictest0-21swapper/622:56:2612
1326829943617,418cyclictest0-21swapper/323:08:479
1326939943413,420cyclictest0-21swapper/622:38:4612
13269099434432,0cyclictest69750irq/159-i91523:23:0411
1326939943311,421cyclictest0-21swapper/623:25:2612
13272499432430,2cyclictest0-21swapper/1322:53:045
132682994319,421cyclictest0-21swapper/322:39:499
13271599430430,0cyclictest0-21swapper/1122:25:263
13271599430430,0cyclictest0-21swapper/1122:25:263
132708994294,29cyclictest0-21swapper/1021:19:282
1326779942913,413cyclictest0-21swapper/223:40:048
13272499426426,0cyclictest0-21swapper/1321:06:045
13272499426423,2cyclictest253553-21kworker/u64:11+events_unbound21:40:485
132670994263,421cyclictest0-21swapper/022:32:040
132670994263,421cyclictest0-21swapper/022:32:040
132697994244,419cyclictest0-21swapper/723:55:0313
132693994244,418cyclictest0-21swapper/621:59:2512
132693994243,418cyclictest0-21swapper/622:24:2512
132693994243,418cyclictest0-21swapper/622:24:2512
1326939942424,399cyclictest0-21swapper/600:22:4712
1327089942325,396cyclictest0-21swapper/1023:02:482
1326939942324,398cyclictest0-21swapper/620:22:4812
1327089942224,398cyclictest0-21swapper/1022:55:462
1327089942222,399cyclictest0-21swapper/1022:04:492
1327089942222,399cyclictest0-21swapper/1021:07:482
1327089942222,398cyclictest0-21swapper/1020:01:282
1327089942124,394cyclictest0-21swapper/1019:57:042
1327089942124,394cyclictest0-21swapper/1019:57:042
1327089942122,396cyclictest0-21swapper/1022:34:462
1327089942122,396cyclictest0-21swapper/1020:10:272
1327089942122,396cyclictest0-21swapper/1019:11:272
1326939942123,397cyclictest0-21swapper/600:34:4712
13272499420417,1cyclictest0-21swapper/1323:23:045
13271599420417,3cyclictest327742-21kworker/11:1+events23:08:473
1327089942022,398cyclictest0-21swapper/1022:03:482
1327089942020,399cyclictest0-21swapper/1000:28:482
132733994190,25cyclictest0-21swapper/1522:26:047
132733994190,25cyclictest0-21swapper/1522:26:047
1327089941921,397cyclictest0-21swapper/1023:54:472
1327089941921,396cyclictest0-21swapper/1020:07:272
1327089941921,395cyclictest0-21swapper/1021:03:252
1327089941920,396cyclictest0-21swapper/1022:51:482
1327089941919,398cyclictest0-21swapper/1020:35:482
13269799419417,1cyclictest269052-21kworker/7:2+i915-unordered21:54:2713
1326939941920,398cyclictest0-21swapper/621:24:2712
13269099419418,1cyclictest69750irq/159-i91520:46:0411
1327339941821,396cyclictest0-21swapper/1523:47:047
1327159941822,395cyclictest0-21swapper/1121:25:043
1327159941821,396cyclictest0-21swapper/1121:15:043
1327089941820,398cyclictest0-21swapper/1019:16:482
1327089941820,396cyclictest0-21swapper/1021:18:252
1327089941820,396cyclictest0-21swapper/1020:19:472
1327089941819,398cyclictest0-21swapper/1021:31:472
1327089941819,398cyclictest0-21swapper/1020:51:272
1327089941819,397cyclictest0-21swapper/1023:15:472
1327089941819,397cyclictest0-21swapper/1020:31:462
1327089941819,396cyclictest0-21swapper/1019:19:462
132701994180,417cyclictest0-21swapper/800:37:4914
1326939941821,396cyclictest0-21swapper/619:41:0412
1326939941821,395cyclictest0-21swapper/619:22:0412
1326779941821,394cyclictest0-21swapper/220:13:048
1327159941723,393cyclictest0-21swapper/1122:16:493
1327089941722,393cyclictest0-21swapper/1020:48:262
1327089941718,397cyclictest0-21swapper/1021:58:252
1326939941721,394cyclictest0-21swapper/619:45:0412
1326939941721,394cyclictest0-21swapper/619:45:0412
1326939941717,399cyclictest0-21swapper/620:05:2612
1327159941617,398cyclictest0-21swapper/1120:14:273
13269399416413,2cyclictest0-21swapper/623:55:3612
1326939941618,397cyclictest0-21swapper/623:07:2612
1326939941618,397cyclictest0-21swapper/621:36:2812
1326939941617,398cyclictest0-21swapper/620:54:4712
1326939941616,399cyclictest0-21swapper/600:27:2612
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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