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2026-01-20 - 03:52
[ 290.152] (II) VESA: driver for VESA chipsets: vesa

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #2, slot #7

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

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 highest latencies:
System rack2slot7s.osadl.org (updated Mon Jan 19, 2026 19:55:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2641856996051,6cyclictest2870179-21latency_hist17:40:032
2641854996052,5cyclictest2869758-21multi.sh17:40:011
2641856995446,5cyclictest3500634-21rm18:12:012
2641854995444,6cyclictest2832942-21spawn17:35:001
2641854995344,6cyclictest2952155-21execl17:50:021
2641856995243,5cyclictest0-21swapper/217:20:032
2641854995243,6cyclictest3447144-21sh18:09:511
2641853995242,7cyclictest12450irq/32-eth017:15:020
2641853995145,4cyclictest2952158-21execl17:50:020
2641853995033,14cyclictest3455081-21multi.sh18:10:110
2641854994840,4cyclictest271ktimers/118:10:131
2641853994741,4cyclictest3448353-21multi.sh18:09:530
2641856994639,4cyclictest3447350-21expr18:09:512
2641856994638,4cyclictest2920870-21sh17:42:172
2641856994636,7cyclictest3530483-21cron18:30:012
2641856994636,7cyclictest3530483-21cron18:30:012
2641854994639,4cyclictest2646381-21cron17:20:011
2641854994638,5cyclictest2940447-21grep17:43:071
2641856994532,7cyclictest0-21swapper/217:27:562
2641853994539,3cyclictest0-21swapper/017:50:080
2641856994337,3cyclictest0-21swapper/217:25:012
2641853994336,4cyclictest2957042-21Run18:01:430
2641853994334,7cyclictest2869800-21gcc17:40:010
2641853994332,9cyclictest2916421-21sh17:42:070
2641854994234,5cyclictest2953106-21execl17:50:141
2641853994235,5cyclictest2643217-21idleruntime-cro17:10:000
2641856994132,6cyclictest2833453-21latency_hist17:35:022
2641854994126,12cyclictest2954849-21/usr/sbin/munin17:55:101
264185399415,33cyclictest2649555-21true17:30:010
264185399413,35cyclictest3530492-21idleruntime-cro18:30:010
264185399413,35cyclictest3530492-21idleruntime-cro18:30:010
2641856994032,5cyclictest2953104-21execl17:50:122
2641856994032,5cyclictest2952158-21execl17:49:522
2641856994031,5cyclictest3531955-21latency_hist18:35:022
2641854994032,5cyclictest3533447-21sendmail-msp18:40:011
2641854994032,5cyclictest2957062-21Run18:01:561
2641854994032,5cyclictest2647957-21systemd-run17:25:011
2641853994031,7cyclictest2832891-21munin-run17:35:010
2641853994029,8cyclictest3527556-21ntpq18:20:000
2641856993930,6cyclictest3284536-21spawn18:04:072
2641856993824,11cyclictest2955279-21Run17:58:272
2641856993824,10cyclictest564-21dbus-daemon18:20:012
2641854993831,4cyclictest2649536-21idleruntime-cro17:30:011
2641853993829,6cyclictest564-21dbus-daemon18:35:010
2641854993627,5cyclictest2644673-21cron17:15:001
2641853993630,3cyclictest0-21swapper/017:20:020
2641854993528,4cyclictest0-21swapper/118:25:021
264185699341,24cyclictest3533631-21latency_hist18:40:022
2641854993428,3cyclictest0-21swapper/117:10:001
2641854993426,5cyclictest3531965-21ldconfig18:35:001
2641853993426,5cyclictest0-21swapper/017:59:550
264185399341,28cyclictest2647958-21munin-run17:25:010
2641856993326,4cyclictest0-21swapper/217:15:012
2641854993323,6cyclictest3527572-21sendmail18:20:001
2641854993320,7cyclictest3530717-21latency_hist18:30:031
2641854993320,7cyclictest3530717-21latency_hist18:30:031
2641853993328,3cyclictest0-21swapper/018:25:010
264185399332,23cyclictest2641957-21latency_hist17:05:030
2641853993314,4cyclictest3532705-21unixbench_singl18:35:100
2641856993221,8cyclictest3528977-21needreboot18:24:592
2641856993126,2cyclictest0-21swapper/217:05:022
2641856993125,3cyclictest0-21swapper/217:10:022
2641854992822,3cyclictest0-21swapper/117:05:021
264185799212,10cyclictest0-21swapper/317:35:003
264185799176,6cyclictest0-21swapper/318:30:023
264185799176,6cyclictest0-21swapper/318:30:023
264185799173,7cyclictest0-21swapper/318:00:223
264185799163,9cyclictest0-21swapper/317:45:023
264185799162,9cyclictest0-21swapper/318:20:013
264185799162,9cyclictest0-21swapper/318:10:093
264185799162,8cyclictest0-21swapper/317:39:593
264185799162,7cyclictest0-21swapper/317:30:013
264185799161,8cyclictest0-21swapper/318:05:043
264185799153,8cyclictest0-21swapper/317:57:503
264185799153,7cyclictest0-21swapper/317:50:063
264185799152,7cyclictest0-21swapper/317:45:053
264185799142,7cyclictest0-21swapper/318:25:013
264185799142,7cyclictest0-21swapper/317:20:013
264185799142,7cyclictest0-21swapper/317:15:003
264185799135,6cyclictest0-21swapper/318:40:013
264185799131,7cyclictest0-21swapper/317:10:013
264185799123,7cyclictest0-21swapper/317:05:023
264185799121,6cyclictest0-21swapper/318:35:023
264185799112,6cyclictest0-21swapper/317:25:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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