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2026-05-18 - 09:14
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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
Characteristics of the 100 highest latencies:
System rack6slot0.osadl.org (updated Mon May 18, 2026 01:01:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2190599216211,4cyclictest0-21swapper/3323:09:4727
2190599216211,4cyclictest0-21swapper/3323:09:4727
2187599212200,10cyclictest0-21swapper/721:10:0237
2187599212200,10cyclictest0-21swapper/721:10:0237
2190599208200,6cyclictest0-21swapper/3322:00:1827
2190599208200,6cyclictest0-21swapper/3322:00:1827
2190599207201,4cyclictest0-21swapper/3323:15:2927
2190599207201,4cyclictest0-21swapper/3323:15:2827
2187599206196,6cyclictest3542-21CPU37
2190599205198,5cyclictest0-21swapper/3321:22:4927
2190599205198,5cyclictest0-21swapper/3321:22:4827
2187599205195,9cyclictest0-21swapper/722:45:0537
2190599204198,5cyclictest0-21swapper/3321:34:0527
2190599204198,5cyclictest0-21swapper/3321:34:0527
2190599203197,4cyclictest0-21swapper/3319:55:1427
2190599203197,4cyclictest0-21swapper/3319:55:1327
2190599203196,5cyclictest0-21swapper/3319:45:2127
2190599203196,5cyclictest0-21swapper/3319:45:2027
2187599203187,13cyclictest0-21swapper/722:08:0737
2187599203187,13cyclictest0-21swapper/722:08:0737
2187599203187,13cyclictest0-21swapper/722:08:0737
2187599202197,4cyclictest0-21swapper/722:45:1037
2187599202197,4cyclictest0-21swapper/722:45:1037
2187599200191,5cyclictest3548-21CPU37
2187599200191,5cyclictest3548-21CPU37
2187599200191,5cyclictest3548-21CPU37
2190599199193,4cyclictest0-21swapper/3323:46:2527
2190599199193,4cyclictest0-21swapper/3323:46:2527
2190599199193,4cyclictest0-21swapper/3322:39:2727
2190599199193,4cyclictest0-21swapper/3322:39:2727
2190599199193,4cyclictest0-21swapper/3322:16:1227
2190599199193,4cyclictest0-21swapper/3322:16:1127
2190599199192,4cyclictest0-21swapper/3321:39:0627
2190599199192,4cyclictest0-21swapper/3321:39:0627
2190599199189,8cyclictest0-21swapper/3323:34:1527
2190599199189,8cyclictest0-21swapper/3323:34:1527
2190599199185,12cyclictest21847-21kworker/u80:2-ext4-rsv-conversion22:56:4027
2190599199185,12cyclictest21847-21kworker/u80:2-ext4-rsv-conversion22:56:4027
2190599199185,12cyclictest21847-21kworker/u80:2-ext4-rsv-conversion22:56:4027
2187599199194,4cyclictest0-21swapper/721:10:0937
2187599199194,4cyclictest0-21swapper/721:10:0937
2190599198192,4cyclictest0-21swapper/3320:15:2127
2190599198192,4cyclictest0-21swapper/3320:15:2027
2190599198192,4cyclictest0-21swapper/3300:14:0727
2190599198192,4cyclictest0-21swapper/3300:14:0627
2190599198192,4cyclictest0-21swapper/3300:14:0627
2190599198189,7cyclictest36168-21taskset19:17:3827
2190599198189,7cyclictest36168-21taskset19:17:3827
2187599198193,4cyclictest0-21swapper/723:38:5337
2187599198193,4cyclictest0-21swapper/723:38:5337
2187599198193,4cyclictest0-21swapper/723:38:5337
2190599197191,4cyclictest0-21swapper/3323:10:3527
2190599197191,4cyclictest0-21swapper/3323:10:3527
2190599197191,4cyclictest0-21swapper/3323:10:3527
2190599197191,4cyclictest0-21swapper/3300:23:2927
2190599197191,4cyclictest0-21swapper/3300:23:2927
2187299197190,5cyclictest0-21swapper/422:18:5634
2187299197190,5cyclictest0-21swapper/422:18:5634
2190599196192,2cyclictest0-21swapper/3322:14:0727
2190599196192,2cyclictest0-21swapper/3322:14:0727
2190599196190,4cyclictest0-21swapper/3323:44:2927
2190599196190,4cyclictest0-21swapper/3323:44:2927
2190599195191,2cyclictest0-21swapper/3323:05:0427
2190599195191,2cyclictest0-21swapper/3323:05:0427
2190599195190,4cyclictest0-21swapper/3321:15:2227
2190599195190,4cyclictest0-21swapper/3321:15:2227
2190599195189,4cyclictest0-21swapper/3323:22:4927
2190599195189,4cyclictest0-21swapper/3323:22:4927
2190599194187,5cyclictest0-21swapper/3300:31:3127
2190599194187,5cyclictest0-21swapper/3300:31:3027
2187999194187,3cyclictest0-21swapper/1023:00:282
2187999194187,3cyclictest0-21swapper/1023:00:272
2187599194189,4cyclictest0-21swapper/700:24:1637
2187599194189,4cyclictest0-21swapper/700:24:1637
2190599193187,5cyclictest0-21swapper/3322:23:0627
2190599193187,5cyclictest0-21swapper/3322:23:0627
2187599193188,4cyclictest0-21swapper/719:13:0937
2187599193188,4cyclictest0-21swapper/719:13:0837
2191199192187,4cyclictest0-21swapper/3922:11:2933
2191199192187,4cyclictest0-21swapper/3922:11:2933
2190599192187,4cyclictest0-21swapper/3323:29:1027
2190599192187,4cyclictest0-21swapper/3323:29:1027
2190599192185,5cyclictest0-21swapper/3320:05:1927
2190599192185,5cyclictest0-21swapper/3320:05:1927
2190599190181,7cyclictest0-21swapper/3323:54:3827
2190599190181,7cyclictest0-21swapper/3323:54:3827
2187599190185,4cyclictest0-21swapper/723:42:0337
2187599190185,4cyclictest0-21swapper/723:42:0337
2187599190183,5cyclictest0-21swapper/700:01:2537
2187599190183,5cyclictest0-21swapper/700:01:2537
2187599190111,59cyclictest3544-21CPU37
2187599190111,59cyclictest3544-21CPU37
2187599189186,2cyclictest65050irq/38-aacraid21:55:0937
2187599189186,2cyclictest65050irq/38-aacraid21:55:0937
2187599189186,2cyclictest65050irq/38-aacraid21:55:0937
2187599189184,4cyclictest0-21swapper/723:08:2337
2187599189184,4cyclictest0-21swapper/723:08:2337
2187599189183,4cyclictest0-21swapper/723:30:2637
2187599189183,4cyclictest0-21swapper/723:30:2637
2190599188183,4cyclictest0-21swapper/3320:54:4427
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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