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2026-03-30 - 02:25
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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 rack0slot2.osadl.org (updated Mon Mar 30, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26294472740,1sleep72629448-21kthreadcore22:23:127
26294472740,1sleep72629448-21kthreadcore22:23:127
2197382995755,2cyclictest2670168-21kworker/u16:1+events_unbound22:58:146
219694625747,7sleep60-21swapper/619:00:546
219678325747,7sleep50-21swapper/518:58:375
2197382995552,2cyclictest2511352-21kworker/u16:0+events_unbound22:43:016
2197382995552,2cyclictest2334839-21kworker/u16:0+events_unbound20:18:146
2197382995552,2cyclictest2334839-21kworker/u16:0+events_unbound20:18:146
2197382995452,2cyclictest2789940-21kworker/u16:0+events_unbound23:48:216
2197382995452,2cyclictest2511352-21kworker/u16:0+flush-8:023:18:046
2197376995451,3cyclictest2451472-21kworker/u16:4+events_unbound22:38:204
2197376995351,2cyclictest2789940-21kworker/u16:0+events_unbound00:13:054
2197382995250,2cyclictest2584066-21kworker/u16:1+events_unbound22:18:046
2197382995149,2cyclictest2511352-21kworker/u16:0+events_unbound23:13:176
2197382995047,2cyclictest2451472-21kworker/u16:4+flush-8:022:28:146
2197376995047,2cyclictest2886805-21kworker/u16:2+flush-8:000:18:044
2197382994644,2cyclictest2511352-21kworker/u16:0+flush-8:022:33:046
2197382994644,2cyclictest2451472-21kworker/u16:4+events_unbound22:38:256
2197382994643,2cyclictest2766680-21kworker/u16:3+events_unbound23:28:046
2197382994643,2cyclictest2511352-21kworker/u16:0+flush-8:022:48:146
2197376994644,2cyclictest2670168-21kworker/u16:1+flush-8:023:23:054
2197382994543,2cyclictest2908781-21kworker/u16:1+events_unbound00:31:506
2197376994542,2cyclictest2451472-21kworker/u16:4+flush-8:022:18:054
2197382994442,2cyclictest2886805-21kworker/u16:2+events_unbound00:18:196
2197382994442,2cyclictest2799507-21kworker/u16:6+flush-8:023:42:486
219687724434,7sleep40-21swapper/418:59:564
2197382994341,2cyclictest2908781-21kworker/u16:1+events_unbound00:27:176
2197382994341,2cyclictest2859456-21kworker/u16:4+events_unbound00:02:166
2197382994240,2cyclictest2859456-21kworker/u16:4+events_unbound00:13:206
2197382994240,2cyclictest2799507-21kworker/u16:6+events_unbound23:45:456
2197382994240,2cyclictest2799507-21kworker/u16:6+events_unbound23:45:456
2197382994240,2cyclictest2799507-21kworker/u16:6+events_unbound23:37:256
2197382994240,2cyclictest2451472-21kworker/u16:4+events_unbound23:24:376
2197382994240,2cyclictest2442475-21kworker/u16:2+events_unbound21:19:306
219738499410,39cyclictest124-21kswapd021:58:137
2197382994139,2cyclictest2511352-21kworker/u16:0+events_unbound21:44:416
2197382994038,2cyclictest2511352-21kworker/u16:0+events_unbound21:37:456
2197382994038,2cyclictest2451472-21kworker/u16:4+events_unbound23:06:346
2197382994038,2cyclictest2373176-21kworker/u16:0+events_unbound21:13:546
2197382994037,2cyclictest2511352-21kworker/u16:0+events_unbound22:52:536
21943332400,30sleep70-21swapper/718:58:157
2197384993933,5cyclictest2420743-21latency_hist20:57:497
2197382993937,2cyclictest2838796-21kworker/u16:3+events_unbound00:05:376
2197382993937,2cyclictest2511352-21kworker/u16:0+events_unbound22:26:056
2197382993937,2cyclictest2511352-21kworker/u16:0+events_unbound22:26:056
2197382993937,2cyclictest2511352-21kworker/u16:0+events_unbound21:51:146
2197382993937,2cyclictest2488321-21kworker/u16:1+events_unbound21:39:386
2197382993937,2cyclictest2451472-21kworker/u16:4+events_unbound22:12:226
2197382993937,2cyclictest2451472-21kworker/u16:4+events_unbound21:11:356
2197382993937,2cyclictest2442475-21kworker/u16:2+events_unbound22:01:296
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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