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2026-01-18 - 13:20
[ 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 792 highest latencies:
System rack2slot7s.osadl.org (updated Sat Jan 17, 2026 19:55:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2079341997558,12cyclictest2897079-21sh18:10:111
2079340997149,17cyclictest2085595-21cat17:25:020
2079340996448,13cyclictest12450irq/32-eth018:15:010
2079341996149,8cyclictest2076360-21kworker/u8:9-xprtiod17:50:101
2079340996153,4cyclictest2893242-21multi.sh18:10:000
2079342995731,23cyclictest2919343-21multi.sh18:11:062
207934099571,28cyclictest2309073-21tee17:40:010
2079340995527,4cyclictest2344625-21sh17:41:410
2079342995445,5cyclictest0-21swapper/217:40:042
2079342995430,21cyclictest2836118-21sh18:07:452
2079342995334,16cyclictest2330290-21sh17:41:032
2079341995347,3cyclictest0-21swapper/117:15:021
2079340995328,4cyclictest2671462-21spawn18:04:140
2079340995328,4cyclictest2671462-21spawn18:04:140
207934299521,13cyclictest2080919-21cat17:10:022
2079340995237,4cyclictest2083650-21whetstone-doubl17:20:010
2079340995237,4cyclictest2083650-21whetstone-doubl17:20:010
2079340995223,4cyclictest0-21swapper/018:35:020
2079342995125,22cyclictest0-21swapper/217:50:012
2079340995126,4cyclictest2391336-21execl17:50:010
2079341995040,6cyclictest2309153-21multi.sh17:40:011
2079341994941,5cyclictest2841857-21sh18:07:581
2079341994941,5cyclictest2372008-21grep17:42:491
2079342994821,24cyclictest2673191-21spawn18:03:562
2079342994821,24cyclictest2673191-21spawn18:03:562
2079340994832,13cyclictest2082226-21ntpq17:15:000
2079340994733,10cyclictest12450irq/32-eth017:10:020
2079342994638,5cyclictest2083967-21munin-run17:20:012
2079342994638,5cyclictest2083967-21munin-run17:20:012
2079341994638,5cyclictest2085400-21awk17:25:001
2079342994536,6cyclictest2082396-21latency_hist17:15:022
2079342994530,11cyclictest2272721-21munin-plugin-st17:35:012
2079342994426,14cyclictest0-21swapper/218:35:022
2079342994326,14cyclictest0-21swapper/218:40:012
2079340994337,4cyclictest0-21swapper/017:50:090
2079342994233,4cyclictest0-21swapper/217:50:102
2079341994232,7cyclictest2806832-21Run18:04:291
2079341994232,7cyclictest2806832-21Run18:04:291
2079341994232,6cyclictest2391908-21ls17:50:011
2079342994121,17cyclictest771697-21cups-browsed17:56:132
207934199412,30cyclictest2395313-21sh18:00:021
2079340994135,4cyclictest2079558-21latency_hist17:05:030
2079340994135,4cyclictest2079558-21latency_hist17:05:030
207934299402,5cyclictest2971395-21ntpq18:25:032
207934299401,12cyclictest2970438-21users18:20:382
207934299401,12cyclictest2970438-21users18:20:382
207934299391,7cyclictest2085691-21ntpq17:25:032
2079342993914,22cyclictest2079338-21cyclictest18:15:082
207934299381,7cyclictest2079349-21systemd-run17:05:012
207934299381,7cyclictest2079349-21systemd-run17:05:012
2079340993832,3cyclictest2975516-21grep18:40:010
2079342993726,7cyclictest1-21systemd17:25:012
207934199372,27cyclictest2974200-21latency_hist18:35:021
207934199371,31cyclictest2273153-21cut17:35:031
2079341993627,4cyclictest0-21swapper/117:10:021
2079341993626,5cyclictest2083971-21sendmail17:20:011
2079341993626,5cyclictest2083971-21sendmail17:20:011
2079341993625,8cyclictest2971114-21ntpq18:25:011
2079341993625,8cyclictest2971114-21ntpq18:25:011
2079340993623,10cyclictest2082239-21Run17:55:590
2079341993520,9cyclictest2975515-21/usr/sbin/munin18:40:011
207934099353,28cyclictest2272940-21systemctl17:35:010
207934199337,17cyclictest792-21munin-node18:15:031
207934199314,18cyclictest577-21mta-sts-daemon18:26:491
2079340993123,6cyclictest2086911-21latency_hist17:30:020
207934099301,16cyclictest2971161-21unin-run18:25:020
207934099301,16cyclictest2971161-21unin-run18:25:020
2079340992920,6cyclictest2972436-21cron18:30:000
2079341992820,5cyclictest563-21avahi-daemon17:25:461
2079341992412,9cyclictest2079357-21systemctl17:05:011
2079341992412,9cyclictest2079357-21systemctl17:05:011
2079340992116,3cyclictest1167-21mta-sts-daemon18:18:170
207934399192,10cyclictest0-21swapper/317:58:253
207934399180,8cyclictest0-21swapper/317:20:013
207934399180,8cyclictest0-21swapper/317:20:013
207934399175,9cyclictest0-21swapper/317:50:093
207934399173,8cyclictest0-21swapper/318:10:083
207934399172,7cyclictest0-21swapper/317:50:043
207934399172,6cyclictest0-21swapper/318:25:003
207934399172,6cyclictest0-21swapper/318:25:003
207934399164,7cyclictest0-21swapper/317:40:053
207934399163,8cyclictest0-21swapper/317:35:023
207934399163,6cyclictest0-21swapper/318:06:113
207934399162,9cyclictest0-21swapper/317:40:023
207934399152,7cyclictest0-21swapper/318:40:023
207934399151,8cyclictest0-21swapper/318:04:553
207934399151,8cyclictest0-21swapper/318:04:553
207934399142,6cyclictest0-21swapper/317:25:013
207934399133,6cyclictest0-21swapper/317:05:033
207934399133,6cyclictest0-21swapper/317:05:033
207934399132,7cyclictest0-21swapper/318:35:013
207934399131,8cyclictest0-21swapper/317:10:023
207934399123,6cyclictest0-21swapper/318:30:033
207934399113,6cyclictest0-21swapper/317:15:013
20793439994,4cyclictest0-21swapper/317:25:033
20793439984,3cyclictest0-21swapper/318:15:033
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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