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2026-01-24 - 04:54
[ 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.
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 highest latencies:
System rack2slot7s.osadl.org (updated Fri Jan 23, 2026 19:55:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3714302999062,24cyclictest337022-21sort18:10:151
3714301998259,18cyclictest337261-21multi.sh18:10:170
3714302997652,19cyclictest0-21swapper/118:40:011
3714302996841,24cyclictest314968-21sh18:09:201
3714302996633,6cyclictest3990653-21sh17:42:111
3714302996633,6cyclictest3990653-21sh17:42:111
3714301996046,9cyclictest0-21swapper/018:40:010
3714302995937,4cyclictest3717799-21cron17:15:001
3714301995749,5cyclictest564-21dbus-daemon18:10:020
3714303995444,6cyclictest336902-21tee18:10:152
3714302995243,5cyclictest3942686-21tee17:40:011
3714301995244,5cyclictest3993549-21sh17:42:180
3714301995244,5cyclictest3993549-21sh17:42:180
3714303995143,5cyclictest333596-21sort18:10:062
3714302994840,4cyclictest4025053-21execl17:49:581
3714301994837,8cyclictest406803-21run-parts18:20:010
3714303994738,5cyclictest3959534-21rm17:40:542
3714303994738,5cyclictest3959534-21rm17:40:542
3714303994638,5cyclictest406810-21systemctl18:20:012
3714303994638,5cyclictest3942572-21basename17:40:002
3714302994634,7cyclictest763-21snmpd18:20:011
3714301994532,5cyclictest3905007-21spawn17:35:010
3714302994435,5cyclictest4025992-21execl17:50:101
3714301994434,8cyclictest4025738-21latency_hist17:50:020
3714301994424,16cyclictest0-21swapper/017:10:010
3714303994333,6cyclictest3718066-21latency_hist17:15:022
3714301994336,5cyclictest1-21systemd17:40:010
3714301994334,5cyclictest0-21swapper/017:55:040
3714303994235,4cyclictest4025996-21execl17:50:162
3714303994234,5cyclictest4025053-21execl17:50:022
3714302994132,6cyclictest3606321-21systemd-journal18:35:011
3714301994131,8cyclictest3719295-21cron17:20:010
371430199412,31cyclictest411520-21cat18:35:030
3714303994027,10cyclictest246058-21syscall18:04:532
3714302994032,5cyclictest3904199-21cron17:35:011
3714302994028,5cyclictest4028317-21sh17:59:211
371430299402,31cyclictest246867-21latency_hist18:05:021
3714301994026,9cyclictest151ktimers/018:00:040
371430399393,27cyclictest409780-21latency_hist18:30:022
3714303993930,6cyclictest3716363-21systemd-run17:10:012
3714301993918,15cyclictest1319-21sendmail-mta17:55:050
3714302993830,5cyclictest408273-21idleruntime-cro18:25:011
371430299373,28cyclictest409816-21munin-run18:30:021
3714301993624,9cyclictest0-21swapper/018:30:010
3714301993624,7cyclictest12450irq/32-eth017:30:010
3714303993528,5cyclictest0-21swapper/217:59:042
3714303993527,5cyclictest3720350-21unixbench_multi17:20:182
3714303993526,6cyclictest4024043-21kworker/u8:8-xprtiod18:25:022
3714303993524,7cyclictest411503-21latency_hist18:35:032
3714302993529,3cyclictest0-21swapper/117:20:121
3714302993527,5cyclictest3718667-21unixbench_singl17:15:141
3714303993423,8cyclictest412733-21needreboot18:40:002
3714302993424,8cyclictest3722678-21latency_hist17:30:011
3714301993429,2cyclictest0-21swapper/017:15:000
3714303993325,5cyclictest3906288-21spawn17:35:022
3714301993325,6cyclictest151ktimers/017:20:090
371430399313,20cyclictest2507289-21cups-browsed17:15:032
3714303993122,5cyclictest0-21swapper/217:25:062
3714302993022,5cyclictest3716326-21ntpq17:10:011
371430199282,21cyclictest408245-21latency_hist18:25:020
3714302992418,3cyclictest0-21swapper/117:05:021
3714303992317,2cyclictest0-21swapper/217:05:012
3714301992212,7cyclictest3714300-21cyclictest17:05:010
371430499203,8cyclictest0-21swapper/318:00:073
371430499173,9cyclictest0-21swapper/318:20:013
371430499163,8cyclictest0-21swapper/317:50:053
371430499163,8cyclictest0-21swapper/317:40:013
371430499162,8cyclictest0-21swapper/318:40:013
371430499162,8cyclictest0-21swapper/318:00:033
371430499162,7cyclictest0-21swapper/317:30:023
371430499152,8cyclictest0-21swapper/318:10:133
371430499151,8cyclictest0-21swapper/317:15:013
371430499143,6cyclictest0-21swapper/318:10:063
371430499142,7cyclictest0-21swapper/317:45:023
371430499142,7cyclictest0-21swapper/317:45:023
371430499142,7cyclictest0-21swapper/317:33:493
371430499141,6cyclictest0-21swapper/317:20:073
371430499141,4cyclictest0-21swapper/318:30:023
371430499121,6cyclictest0-21swapper/318:25:023
371430499121,5cyclictest0-21swapper/317:05:293
371430499112,6cyclictest0-21swapper/317:50:013
37143049992,4cyclictest0-21swapper/317:20:033
37143049991,4cyclictest0-21swapper/318:30:063
37143049991,4cyclictest0-21swapper/317:05:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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