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2026-02-26 - 14:29
[ 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 #e, slot #8

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 100 highest latencies:
System rackeslot8s.osadl.org (updated Thu Feb 26, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27663449912500,1246cyclictest30267472sleep33
27663449911080,1103cyclictest2820184-21sleep3
2766344993560,352cyclictest2961875-21turbostat3
2766344991913,3cyclictest3136566-21turbostat3
2766344991815,1cyclictest0-21swapper/33
2766344991714,1cyclictest0-21swapper/33
276634499166,7cyclictest31160682sleep33
2766344991613,1cyclictest0-21swapper/33
2766344991613,1cyclictest0-21swapper/33
276634499161,11cyclictest3091058-21turbostat3
276634499155,7cyclictest2936528-21taskset3
276634499154,8cyclictest30015432sleep33
2766344991512,1cyclictest0-21swapper/33
2766344991512,1cyclictest0-21swapper/33
2766344991512,1cyclictest0-21swapper/33
2766344991512,1cyclictest0-21swapper/33
276634499151,11cyclictest2999943-21chrt3
276634499151,11cyclictest2999943-21chrt3
276634499151,11cyclictest2800844-21chrt3
276634499151,10cyclictest3169018-21taskset3
276634499151,10cyclictest3143019-21taskset3
276634499151,10cyclictest28784482sleep33
28399512142,3sleep02839973-21apt-get0
276634499145,6cyclictest31094502sleep33
276634499145,6cyclictest28592892sleep33
276634499144,7cyclictest2836581-21taskset3
276634499143,8cyclictest3156173-21taskset3
2766344991412,1cyclictest0-21swapper/33
2766344991412,1cyclictest0-21swapper/33
2766344991412,1cyclictest0-21swapper/33
2766344991412,1cyclictest0-21swapper/33
2766344991412,1cyclictest0-21swapper/33
2766344991412,1cyclictest0-21swapper/33
2766344991412,1cyclictest0-21swapper/33
276634499141,10cyclictest3023911-21taskset3
276634499141,10cyclictest2904174-21turbostat3
276634499140,11cyclictest2766679-21chrt3
276634499140,10cyclictest2974972-21taskset3
30157332131,3sleep00-21swapper/00
276634499137,3cyclictest2826297-21taskset3
276634499131,9cyclictest3162941-21taskset3
276634499131,9cyclictest3143242-21taskset3
276634499131,9cyclictest2993770-21taskset3
276634499131,9cyclictest2971035-21chrt3
276634499131,9cyclictest2929558-21chrt3
276634499131,9cyclictest2909813-21taskset3
276634499131,9cyclictest2884922-21taskset3
276634499131,9cyclictest2877429-21taskset3
2766344991312,0cyclictest0-21swapper/33
2766344991312,0cyclictest0-21swapper/33
2766344991312,0cyclictest0-21swapper/33
2766344991312,0cyclictest0-21swapper/33
2766344991311,1cyclictest0-21swapper/33
2766344991311,1cyclictest0-21swapper/33
2766344991311,1cyclictest0-21swapper/33
276634499131,10cyclictest3019937-21taskset3
2766344991311,0cyclictest0-21swapper/33
2766344991310,1cyclictest0-21swapper/33
276634499130,9cyclictest29300532sleep33
276634499130,10cyclictest3045641-21taskset3
31508432121,4sleep13152051-21kthreadcore1
276634499129,1cyclictest0-21swapper/33
276634499121,9cyclictest3065338-21taskset3
276634499121,9cyclictest3051992-21taskset3
276634499121,9cyclictest2910835-21taskset3
276634499121,9cyclictest2845788-21taskset3
2766344991211,0cyclictest0-21swapper/33
276634499120,9cyclictest3124274-21taskset3
276634499120,9cyclictest3052628-21taskset3
276634499120,10cyclictest2786997-21chrt3
31167542117,2sleep13116763-21sh1
301798110,4rtkit-daemon2772867-21munin-node1
29890872111,7sleep22990209-21grep2
276634499111,8cyclictest2897415-21taskset3
31429542104,3sleep244-21ksoftirqd/22
301798100,6rtkit-daemon636-21snmpd1
301798100,5rtkit-daemon3038985-21users1
301798100,3rtkit-daemon3205-21sendmail-mta1
301798100,3rtkit-daemon3205-21sendmail-mta1
3163419290,2sleep03164035-21kthreadcore0
3091707293,4sleep23092300-21irqrtprio2
3072289291,6sleep13072062-21/usr/sbin/munin1
3020901290,3sleep13021838-21ps1
30179890,5rtkit-daemon448-21wpa_supplicant1
30179890,5rtkit-daemon3205-21sendmail-mta1
30179890,5rtkit-daemon3205-21sendmail-mta1
30179890,5rtkit-daemon317-21systemd-udevd1
30179890,5rtkit-daemon2910878-21apt-get1
30179890,4rtkit-daemon638-21ntpd1
30179890,4rtkit-daemon2997718-21grep1
30179890,4rtkit-daemon2997718-21grep1
30179890,4rtkit-daemon2948202-21ntp_states1
30179890,4rtkit-daemon2766526-21apt-get1
30179890,3rtkit-daemon636-21snmpd1
30179890,2rtkit-daemon0-21swapper/11
30179890,1rtkit-daemon0-21swapper/11
30179890,1rtkit-daemon0-21swapper/11
3000902291,5sleep03001010-21diskstats0
2948201293,3sleep02948281-21sendmail_mailqu0
2930066291,5sleep02930088-21apt-get0
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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