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2026-01-21 - 11:23
[ 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 Wed Jan 21, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2160980991916,1cyclictest0-21swapper/33
216098099188,6cyclictest2491385-21turbostat3
216098099188,6cyclictest2240373-21turbostat3
2160980991715,1cyclictest0-21swapper/33
2160980991714,1cyclictest0-21swapper/33
2160980991714,1cyclictest0-21swapper/33
2160980991714,1cyclictest0-21swapper/33
301798160,3rtkit-daemon636-21snmpd2
2160980991613,1cyclictest0-21swapper/33
2160980991613,1cyclictest0-21swapper/33
216098099155,8cyclictest2167340-21turbostat3
2160980991513,1cyclictest0-21swapper/33
2160980991512,1cyclictest0-21swapper/33
2160980991512,1cyclictest0-21swapper/33
216098099151,11cyclictest2311418-21turbostat3
216098099151,11cyclictest2311418-21turbostat3
216098099151,10cyclictest2439730-21turbostat3
301798140,9rtkit-daemon2503846-21users2
216098099146,6cyclictest2504240-21turbostat3
216098099141,9cyclictest2369410-21taskset3
2160980991413,0cyclictest0-21swapper/33
2160980991412,1cyclictest0-21swapper/33
2160980991412,1cyclictest0-21swapper/33
2160980991412,1cyclictest0-21swapper/33
2160980991412,1cyclictest0-21swapper/33
2160980991412,1cyclictest0-21swapper/33
2160980991412,0cyclictest0-21swapper/33
2160980991412,0cyclictest0-21swapper/33
2160980991412,0cyclictest0-21swapper/33
2160980991412,0cyclictest0-21swapper/33
2160980991411,1cyclictest0-21swapper/33
2160980991411,1cyclictest0-21swapper/33
2160980991411,1cyclictest0-21swapper/33
216098099141,10cyclictest2548375-21taskset3
216098099141,10cyclictest2542778-21chrt3
216098099141,10cyclictest2516881-21chrt3
216098099141,10cyclictest2398036-21taskset3
216098099141,10cyclictest2388787-21chrt3
216098099141,10cyclictest2330515-21taskset3
216098099141,10cyclictest2304124-21taskset3
216098099141,10cyclictest2242730-21taskset3
216098099141,10cyclictest2220344-21taskset3
216098099138,3cyclictest2446259-21chrt3
216098099131,9cyclictest2574063-21taskset3
216098099131,9cyclictest2201409-21taskset3
2160980991312,0cyclictest0-21swapper/33
2160980991312,0cyclictest0-21swapper/33
2160980991312,0cyclictest0-21swapper/33
2160980991312,0cyclictest0-21swapper/33
2160980991312,0cyclictest0-21swapper/33
2160980991312,0cyclictest0-21swapper/33
2160980991311,1cyclictest0-21swapper/33
2160980991311,1cyclictest0-21swapper/33
216098099131,10cyclictest2452530-21chrt3
216098099131,10cyclictest2207969-21taskset3
2160980991311,0cyclictest0-21swapper/33
2160980991310,1cyclictest0-21swapper/33
2160980991310,1cyclictest0-21swapper/33
216098099130,10cyclictest2375752-21taskset3
21547252132,5sleep02154758-21apt-get0
21955972121,8sleep22195631-21dpkg2
216098099128,1cyclictest0-21swapper/33
216098099121,9cyclictest2581153-21taskset3
216098099121,9cyclictest2568592-21taskset3
216098099121,9cyclictest2343145-21taskset3
2160980991211,0cyclictest0-21swapper/33
2160980991210,1cyclictest0-21swapper/33
216098099120,9cyclictest2387379-21taskset3
216098099120,9cyclictest2266342-21taskset3
216098099120,9cyclictest2208469-21taskset3
216098099120,10cyclictest2298419-21taskset3
301798110,3rtkit-daemon636-21snmpd2
301798110,3rtkit-daemon2167475-21munin-node2
25364192111,7sleep01-21systemd0
25131062112,2sleep02515231-21cut0
301798100,5rtkit-daemon2330674-21munin-run2
301798100,5rtkit-daemon2260325-21hddtemp_smartct2
301798100,3rtkit-daemon636-21snmpd2
301798100,3rtkit-daemon2507617-21tr2
301798100,3rtkit-daemon2494715-21kthreadcore2
24727482100,7sleep22472862-21/usr/sbin/munin2
24713492100,4sleep12471446-21sort1
23254292101,3sleep02326646-21kthreadcore0
22856752104,3sleep02285688-21latency_hist0
22393202101,7sleep12234172-21/usr/sbin/munin1
21973992100,5sleep02199475-21kthreadcore0
216098099108,1cyclictest0-21swapper/33
30179890,6rtkit-daemon492-21gmain2
30179890,6rtkit-daemon492-21gmain2
30179890,5rtkit-daemon3205-21sendmail-mta2
30179890,5rtkit-daemon2491044-21seq2
30179890,5rtkit-daemon2405504-21cut2
30179890,4rtkit-daemon448-21wpa_supplicant2
30179890,4rtkit-daemon2549318-21systemd-run2
30179890,4rtkit-daemon2411568-21cut2
30179890,4rtkit-daemon2176309-21date2
2571184291,5sleep12573311-21grep1
2562411291,4sleep02562444-21apt-get0
2541990290,1sleep00-21swapper/00
2479274291,5sleep12480278-21/usr/sbin/munin1
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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