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2026-04-01 - 01:44
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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 Wed Apr 01, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
409356399691298,392cyclictest0-21swapper/921:28:3415
4093549995068,497cyclictest0-21swapper/523:58:3411
409357399480478,1cyclictest89398-21kworker/11:1+i915-unordered23:30:343
4093578994799,469cyclictest0-21swapper/1219:16:344
40935739945617,438cyclictest0-21swapper/1123:58:343
409354099453453,0cyclictest69750irq/159-i91519:16:349
40935559944823,28cyclictest88-21ksoftirqd/720:47:3413
409354999447447,0cyclictest0-21swapper/522:50:3311
40935919944624,29cyclictest0-21swapper/1519:17:347
40935499944620,425cyclictest70-21ksoftirqd/500:23:3311
40935369944521,29cyclictest0-21swapper/222:15:578
40935789944322,29cyclictest0-21swapper/1221:36:344
40935739943913,425cyclictest124-21ksoftirqd/1119:12:343
40935639943712,421cyclictest52807-21timerwakeupswit22:14:5515
40935639943710,423cyclictest0-21swapper/923:49:5515
40935309943542,391cyclictest4130576-21perf19:59:290
409354499430429,1cyclictest4097273-21kworker/4:2+i915-unordered19:16:3410
4093555994270,30cyclictest0-21swapper/723:24:2913
4093555994270,30cyclictest0-21swapper/723:24:2913
4093549994273,29cyclictest70-21ksoftirqd/521:18:3411
409359199424424,0cyclictest0-21swapper/1519:34:577
4093573994240,29cyclictest0-21swapper/1120:58:343
40935639942426,397cyclictest0-21swapper/900:14:5615
4093559994240,29cyclictest0-21swapper/822:54:5714
40935449942324,396cyclictest0-21swapper/419:49:5710
409353099423422,1cyclictest1818-21snmpd23:59:290
409358399422422,0cyclictest133514-21kworker/13:1+i915-unordered23:58:345
40935739942227,394cyclictest0-21swapper/1122:47:333
40935639942225,396cyclictest0-21swapper/921:39:5515
40935599942226,395cyclictest0-21swapper/823:23:5614
40935599942226,395cyclictest0-21swapper/823:23:5614
40935449942222,397cyclictest0-21swapper/421:59:5610
40935369942122,398cyclictest0-21swapper/221:04:558
4093536994210,28cyclictest0-21swapper/223:27:338
409358399420419,1cyclictest1818-21snmpd22:38:295
40935639941921,397cyclictest0-21swapper/923:07:5615
40935639941921,397cyclictest0-21swapper/900:36:1915
40935919941825,392cyclictest0-21swapper/1523:57:337
40935639941823,394cyclictest0-21swapper/922:25:5715
40935639941822,395cyclictest0-21swapper/923:27:5515
409354999418415,3cyclictest1818-21snmpd19:29:0711
409354099418417,1cyclictest69750irq/159-i91523:30:349
40935339941826,392cyclictest0-21swapper/120:50:341
409353099418418,0cyclictest0-21swapper/022:56:560
4093530994182,415cyclictest17234-21perf21:39:290
40935639941720,396cyclictest0-21swapper/920:25:5715
40935639941720,396cyclictest0-21swapper/920:25:5715
40935639941719,397cyclictest0-21swapper/921:37:1815
40935639941719,397cyclictest0-21swapper/900:10:1615
40935639941718,398cyclictest0-21swapper/900:02:5515
40935639941717,399cyclictest0-21swapper/920:56:5515
40935919941621,394cyclictest0-21swapper/1520:53:347
409357899416416,0cyclictest0-21swapper/1222:03:344
409357899416416,0cyclictest0-21swapper/1219:20:344
409357399416415,1cyclictest113435-21kworker/11:0+i915-unordered23:35:343
40935639941619,396cyclictest0-21swapper/922:50:1715
40935639941619,396cyclictest0-21swapper/922:41:1915
40935639941619,396cyclictest0-21swapper/920:34:1815
40935639941619,396cyclictest0-21swapper/920:34:1815
40935639941618,397cyclictest0-21swapper/923:13:5615
40935639941618,397cyclictest0-21swapper/921:49:1815
40935639941618,397cyclictest0-21swapper/921:22:1715
40935639941618,397cyclictest0-21swapper/921:17:1615
40935639941618,397cyclictest0-21swapper/919:53:1815
40935599941620,395cyclictest0-21swapper/821:55:5614
40935409941623,393cyclictest0-21swapper/321:29:299
40935309941620,395cyclictest0-21swapper/022:28:560
409357899415415,0cyclictest0-21swapper/1219:11:344
40935789941520,394cyclictest0-21swapper/1220:38:344
40935789941520,394cyclictest0-21swapper/1219:37:344
40935669941516,398cyclictest0-21swapper/1019:54:552
40935639941519,395cyclictest0-21swapper/900:08:5415
40935639941518,396cyclictest0-21swapper/923:38:1915
40935639941517,397cyclictest0-21swapper/921:05:5515
40935599941520,395cyclictest0-21swapper/822:31:5614
40935599941519,395cyclictest0-21swapper/819:09:5614
40935789941422,391cyclictest0-21swapper/1219:28:344
409357399414413,1cyclictest89398-21kworker/11:1+i915-unordered23:43:343
40935739941414,396cyclictest0-21swapper/1120:04:293
40935599941418,395cyclictest0-21swapper/822:19:5514
40935599941417,396cyclictest0-21swapper/820:10:1714
40935599941417,396cyclictest0-21swapper/800:33:1714
409355199414414,0cyclictest0-21swapper/622:54:3412
409355199414414,0cyclictest0-21swapper/621:59:3412
409355199414414,0cyclictest0-21swapper/600:20:3412
40935639941317,395cyclictest0-21swapper/921:52:5615
40935639941315,397cyclictest0-21swapper/900:28:1915
40935639941313,399cyclictest0-21swapper/922:48:1815
40935599941315,397cyclictest0-21swapper/823:15:5714
40935599941315,397cyclictest0-21swapper/823:15:5714
409355199413413,0cyclictest0-21swapper/622:14:3412
40935339941324,388cyclictest0-21swapper/121:32:341
40935789941218,393cyclictest0-21swapper/1221:55:344
40935669941215,397cyclictest0-21swapper/1022:29:542
40935639941216,395cyclictest0-21swapper/922:06:1815
40935639941215,396cyclictest0-21swapper/922:23:1915
40935639941212,396cyclictest0-21swapper/923:19:5515
40935639941212,396cyclictest0-21swapper/923:19:5515
40935449941213,396cyclictest0-21swapper/421:09:5710
40935739941116,394cyclictest0-21swapper/1122:43:333
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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