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2025-12-17 - 21:16
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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 50 highest latencies:
System rack0slot7.osadl.org (updated Wed Dec 17, 2025 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6215769945622,28cyclictest0-21swapper/1422:09:236
6215769945523,28cyclictest0-21swapper/1422:42:456
6215769945422,28cyclictest0-21swapper/1421:55:586
6215769945420,28cyclictest0-21swapper/1422:16:526
6215769945420,28cyclictest0-21swapper/1421:44:476
6215769945320,28cyclictest0-21swapper/1422:34:206
621565994353,27cyclictest0-21swapper/322:37:589
62156299425422,3cyclictest0-21swapper/022:45:270
6215669942116,404cyclictest0-21swapper/422:26:5710
6215749941812,405cyclictest0-21swapper/1221:51:534
62156699418418,0cyclictest0-21swapper/422:42:2410
6215739941710,406cyclictest0-21swapper/1122:36:213
621576994160,415cyclictest0-21swapper/1422:03:586
6215639941614,401cyclictest0-21swapper/121:52:561
62156899412411,1cyclictest1179221-21kworker/6:2+pm22:18:5212
621572994116,404cyclictest0-21swapper/1022:44:452
621563994103,404cyclictest0-21swapper/121:56:341
6215649940812,395cyclictest451rcuc/221:50:238
621573994071,404cyclictest0-21swapper/1121:49:523
621572994075,402cyclictest0-21swapper/1022:26:362
621573994060,404cyclictest0-21swapper/1122:23:333
62156299406401,5cyclictest181ktimers/021:45:220
62156699404403,1cyclictest0-21swapper/421:59:3510
6215659940244,353cyclictest9328-21Timer21:57:109
6215659940213,389cyclictest0-21swapper/322:31:389
62156299402397,5cyclictest0-21swapper/022:12:220
621577994010,400cyclictest1358824-21turbostat22:34:537
62157399401399,1cyclictest0-21swapper/1122:03:393
62156899400398,2cyclictest1179221-21kworker/6:2+events22:05:2312
62156899399397,2cyclictest1179221-21kworker/6:2+events21:48:5612
62156899398396,2cyclictest1179221-21kworker/6:2+events21:56:5712
62156899398395,2cyclictest1179221-21kworker/6:2+events22:48:5012
62156699398397,1cyclictest0-21swapper/421:47:4910
62156899397395,2cyclictest372058-21kworker/6:0+events22:10:4412
62156899397394,2cyclictest372058-21kworker/6:0+events21:52:2212
62156699397394,2cyclictest371861-21kworker/4:0+events21:51:5310
62157099395394,1cyclictest0-21swapper/822:10:2114
62156899395393,2cyclictest372058-21kworker/6:0+events22:28:5112
62156699395392,2cyclictest0-21swapper/422:38:2110
62156899394389,4cyclictest1179221-21kworker/6:2+events22:42:4512
62157299393390,3cyclictest3617494-21Renderer21:43:192
62157199392391,1cyclictest1218223-21kworker/9:2+events21:52:5715
62156899391389,2cyclictest1179221-21kworker/6:2+events21:44:4612
62156899390388,2cyclictest372058-21kworker/6:0+events22:34:2012
62156699390389,1cyclictest0-21swapper/422:00:3210
62156499390389,1cyclictest15190-21kworker/2:0+events22:44:448
62156499387386,1cyclictest15190-21kworker/2:0+events22:26:368
62156399387386,0cyclictest0-21swapper/122:43:231
62157199386383,3cyclictest3617494-21Renderer21:56:3515
62156599384384,0cyclictest0-21swapper/322:12:599
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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