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2026-07-19 - 06:33
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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 Sun Jul 19, 2026 01:01:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2916199219190,20cyclictest0-21swapper/2922:50:1222
2916199219190,20cyclictest0-21swapper/2922:50:1222
2916199208166,17cyclictest0-21swapper/2923:03:4522
2916199208166,17cyclictest0-21swapper/2923:03:4522
2913499206190,12cyclictest0-21swapper/720:01:1737
2913499206190,12cyclictest0-21swapper/720:01:1737
2917099197187,8cyclictest0-21swapper/3823:30:0132
2917099197187,8cyclictest0-21swapper/3823:30:0132
2913299197192,3cyclictest6191-21kworker/u81:2+events_unbound23:03:0336
2913299197192,3cyclictest6191-21kworker/u81:2+events_unbound23:03:0236
2913199197157,37cyclictest6191-21kworker/u81:2+events_unbound23:22:5835
2913199197157,37cyclictest6191-21kworker/u81:2+events_unbound23:22:5835
2916399194177,14cyclictest0-21swapper/3123:51:3625
2916399194177,14cyclictest0-21swapper/3123:51:3625
2915399193152,31cyclictest0-21swapper/2300:10:4516
2915399193152,31cyclictest0-21swapper/2300:10:4416
2915599189168,18cyclictest0-21swapper/2500:29:1718
2915599189168,18cyclictest0-21swapper/2500:29:1718
2915599189168,18cyclictest0-21swapper/2500:29:1718
2915099189180,5cyclictest0-21swapper/2021:12:3613
2915099189180,5cyclictest0-21swapper/2021:12:3513
2916599188178,2cyclictest0-21swapper/3321:40:3827
2916599188178,2cyclictest0-21swapper/3321:40:3827
2916599187173,7cyclictest0-21swapper/3323:36:0227
2916599187173,7cyclictest0-21swapper/3323:36:0227
2913499186182,2cyclictest0-21swapper/700:22:4237
2913499186182,2cyclictest0-21swapper/700:22:4237
2913499186182,2cyclictest0-21swapper/700:22:4137
2913699185163,18cyclictest0-21swapper/800:30:0538
2913699185163,18cyclictest0-21swapper/800:30:0538
2913699185163,18cyclictest0-21swapper/800:30:0438
2913699184177,5cyclictest0-21swapper/821:47:1438
2913699184177,5cyclictest0-21swapper/821:47:1438
2913699184177,5cyclictest0-21swapper/821:47:1438
2916399183173,8cyclictest0-21swapper/3123:02:0425
2916399183173,8cyclictest0-21swapper/3123:02:0325
2916399183172,8cyclictest0-21swapper/3123:48:3825
2916399183172,8cyclictest0-21swapper/3123:48:3825
2914699183154,27cyclictest0-21swapper/1720:05:319
2914699183154,27cyclictest0-21swapper/1720:05:319
2913699183175,3cyclictest3609-21CPU38
2913699183175,3cyclictest3609-21CPU38
2912699183178,3cyclictest33872-21kworker/u81:3+events_unbound20:40:091
2912699183178,3cyclictest33872-21kworker/u81:3+events_unbound20:40:081
2915099182149,8cyclictest171rcu_preempt23:59:4513
2915099182149,8cyclictest171rcu_preempt23:59:4513
2916199181169,6cyclictest0-21swapper/2919:20:0222
2916199181169,6cyclictest0-21swapper/2919:20:0122
2915099181170,10cyclictest0-21swapper/2000:11:1613
2915099181170,10cyclictest0-21swapper/2000:11:1613
2913699181170,9cyclictest0-21swapper/822:13:0638
2913699181170,9cyclictest0-21swapper/822:13:0638
2913699181170,9cyclictest0-21swapper/822:13:0538
2913199181152,25cyclictest16156-21kworker/u81:1+events_unbound00:10:5935
2913199181152,25cyclictest16156-21kworker/u81:1+events_unbound00:10:5935
2915999180160,12cyclictest3541-21CPU21
2915999180160,12cyclictest3541-21CPU21
2916399179172,5cyclictest0-21swapper/3123:20:1525
2916399179172,5cyclictest0-21swapper/3123:20:1425
2916199179168,7cyclictest0-21swapper/2900:19:5222
2916199179168,7cyclictest0-21swapper/2900:19:5122
2915099179152,10cyclictest171rcu_preempt22:49:3513
2915099179152,10cyclictest171rcu_preempt22:49:3513
2913199179172,4cyclictest28459-21kworker/u81:4+events_unbound23:11:3535
2913199179172,4cyclictest28459-21kworker/u81:4+events_unbound23:11:3535
2916399178167,9cyclictest0-21swapper/3120:15:1825
2916399178167,9cyclictest0-21swapper/3120:15:1825
2915999178148,26cyclictest3542-21CPU21
2915999178148,26cyclictest3542-21CPU21
2915599178160,16cyclictest0-21swapper/2520:30:1918
2915599178160,16cyclictest0-21swapper/2520:30:1818
2915499178112,62cyclictest1279-21kworker/u81:3+events_unbound00:09:4317
2915499178112,62cyclictest1279-21kworker/u81:3+events_unbound00:09:4317
2913699178171,5cyclictest0-21swapper/822:43:0438
2913699178171,5cyclictest0-21swapper/822:43:0438
2913699178171,5cyclictest0-21swapper/822:43:0438
2916399177164,8cyclictest0-21swapper/3119:47:5025
2916399177164,8cyclictest0-21swapper/3119:47:5025
2915599177166,9cyclictest0-21swapper/2523:41:0118
2915599177166,9cyclictest0-21swapper/2523:41:0118
291519917767,98cyclictest1285-21jbd2/sdb1-823:40:1714
291519917767,98cyclictest1285-21jbd2/sdb1-823:40:1714
2915099177170,6cyclictest0-21swapper/2022:44:1613
2915099177170,6cyclictest0-21swapper/2022:44:1613
2915099177170,6cyclictest0-21swapper/2022:44:1613
2912999177172,3cyclictest4714-21kworker/u81:0+events_unbound23:10:5223
2912999177172,3cyclictest4714-21kworker/u81:0+events_unbound23:10:5223
2913699176160,10cyclictest0-21swapper/822:00:4038
2913699176160,10cyclictest0-21swapper/822:00:4038
2913499176138,27cyclictest0-21swapper/722:16:3237
2913499176138,27cyclictest0-21swapper/722:16:3237
2915999175154,9cyclictest0-21swapper/2822:43:0321
2915999175154,9cyclictest0-21swapper/2822:43:0321
2915999175154,9cyclictest0-21swapper/2822:43:0321
2913699175169,2cyclictest0-21swapper/822:57:0638
2913699175169,2cyclictest0-21swapper/822:57:0638
2913699175168,5cyclictest0-21swapper/822:24:3138
2913699175168,5cyclictest0-21swapper/822:24:3138
2916399174153,10cyclictest14239-21kworker/u82:0-events_unbound21:23:2825
2916399174153,10cyclictest14239-21kworker/u82:0-events_unbound21:23:2825
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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