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2026-02-06 - 17:31
[ 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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  Congatec
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 Fri Feb 06, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22992209912790,1275cyclictest25850532sleep33
22992209912710,1267cyclictest25203342sleep33
22992209911920,1188cyclictest24883022sleep33
22992209911470,1143cyclictest25529822sleep33
229922099187,8cyclictest2697122-21turbostat3
2299220991815,1cyclictest0-21swapper/33
2299220991815,1cyclictest0-21swapper/33
229922099181,14cyclictest2417645-21turbostat3
229922099176,8cyclictest2578687-21turbostat3
2299220991714,1cyclictest0-21swapper/33
229922099171,12cyclictest2313469-21taskset3
229922099165,8cyclictest2683655-21taskset3
2299220991613,1cyclictest0-21swapper/33
2299220991613,1cyclictest0-21swapper/33
2299220991613,1cyclictest0-21swapper/33
2299220991613,1cyclictest0-21swapper/33
2299220991613,1cyclictest0-21swapper/33
2299220991513,1cyclictest0-21swapper/33
2299220991513,1cyclictest0-21swapper/33
229922099151,11cyclictest2656242-21taskset3
229922099151,11cyclictest2533920-21taskset3
229922099151,11cyclictest2533920-21taskset3
229922099151,10cyclictest2474742-21taskset3
301798140,2rtkit-daemon0-21swapper/11
229922099144,8cyclictest2565826-21turbostat3
2299220991412,1cyclictest0-21swapper/33
2299220991412,1cyclictest0-21swapper/33
2299220991412,1cyclictest0-21swapper/33
2299220991412,1cyclictest0-21swapper/33
2299220991412,1cyclictest0-21swapper/33
2299220991412,1cyclictest0-21swapper/33
229922099141,11cyclictest2405064-21chrt3
2299220991411,1cyclictest0-21swapper/33
2299220991411,1cyclictest0-21swapper/33
2299220991411,1cyclictest0-21swapper/33
2299220991411,1cyclictest0-21swapper/33
2299220991411,1cyclictest0-21swapper/33
229922099141,10cyclictest2710234-21taskset3
229922099141,10cyclictest2709657-21chrt3
229922099141,10cyclictest2674988-21turbostat3
229922099141,10cyclictest2623597-21turbostat3
23456592131,9sleep22345740-21/usr/sbin/munin2
229922099135,6cyclictest2636437-21turbostat3
229922099134,7cyclictest2532724-21taskset3
229922099134,7cyclictest2532724-21taskset3
229922099134,6cyclictest2591916-21taskset3
229922099131,9cyclictest2436513-21taskset3
229922099131,9cyclictest2418063-21taskset3
229922099131,9cyclictest2385801-21chrt3
2299220991312,1cyclictest0-21swapper/33
2299220991312,0cyclictest0-21swapper/33
2299220991311,1cyclictest0-21swapper/33
2299220991311,1cyclictest0-21swapper/33
229922099131,10cyclictest2649102-21chrt3
229922099131,10cyclictest2305431-21chrt3
2299220991311,0cyclictest0-21swapper/33
2299220991310,1cyclictest0-21swapper/33
2299220991310,1cyclictest0-21swapper/33
229922099130,10cyclictest2722475-21chrt3
229922099130,10cyclictest2437106-21taskset3
25601212121,8sleep02561112-21irqstats0
25520912120,5sleep22552147-21ntp_states2
25272912121,7sleep02527324-21apt-get0
25272912121,7sleep02527324-21apt-get0
229922099121,9cyclictest2662352-21taskset3
229922099121,9cyclictest2629894-21taskset3
229922099121,9cyclictest2507188-21taskset3
229922099121,9cyclictest2494962-21taskset3
2299220991210,1cyclictest0-21swapper/33
2299220991210,1cyclictest0-21swapper/33
229922099120,9cyclictest2585305-21chrt3
229922099120,9cyclictest2339504-21taskset3
229922099120,10cyclictest2690065-21taskset3
229922099120,10cyclictest2462543-21taskset3
22988292120,3sleep30-21swapper/33
301798110,7rtkit-daemon636-21snmpd1
301798110,7rtkit-daemon2307725-21df_inode1
301798110,4rtkit-daemon3205-21sendmail-mta1
301798110,4rtkit-daemon3200908-21packagekitd1
26111842111,7sleep02611343-21gltestperf0
25917632111,7sleep22591915-21df_inode2
24608232110,8sleep12461552-21wc1
301798100,6rtkit-daemon317-21systemd-udevd1
301798100,5rtkit-daemon2351484-21kthreadcore1
301798100,3rtkit-daemon636-21snmpd1
301798100,3rtkit-daemon636-21snmpd1
301798100,3rtkit-daemon636-21snmpd1
301798100,3rtkit-daemon636-21snmpd1
301798100,3rtkit-daemon3205-21sendmail-mta1
301798100,3rtkit-daemon3200908-21packagekitd1
25203382101,6sleep21-21systemd2
24586932100,7sleep02460821-21grep0
24243172102,4sleep22424349-21apt-get2
23623722101,7sleep12363290-21kthreadcore1
30179890,6rtkit-daemon317-21systemd-udevd1
30179890,5rtkit-daemon636-21snmpd1
30179890,5rtkit-daemon636-21snmpd1
30179890,5rtkit-daemon3205-21sendmail-mta1
30179890,5rtkit-daemon2353491-21apt-get1
30179890,5rtkit-daemon2305730-21munin-node1
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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