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2026-01-30 - 14:13
[ 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 Fri Jan 30, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15403379911430,1140cyclictest15938032sleep33
15403379911340,1129cyclictest1767675-21sleep3
1540337996890,685cyclictest17997582chrt3
1540337993860,383cyclictest1935800-21turbostat3
1540337993580,355cyclictest1658307-21turbostat3
19304982440,2sleep1321rcuc/11
1540337991916,1cyclictest0-21swapper/33
1540337991815,1cyclictest0-21swapper/33
1540337991714,1cyclictest0-21swapper/33
154033799171,12cyclictest1580289-21taskset3
154033799161,12cyclictest1684121-21taskset3
154033799160,12cyclictest1728926-21turbostat3
17291612151,4sleep01729193-21apt-get0
1540337991513,1cyclictest0-21swapper/33
1540337991513,1cyclictest0-21swapper/33
1540337991513,1cyclictest0-21swapper/33
1540337991513,0cyclictest0-21swapper/33
1540337991513,0cyclictest0-21swapper/33
1540337991512,1cyclictest0-21swapper/33
1540337991512,1cyclictest0-21swapper/33
154033799151,11cyclictest1613336-21taskset3
154033799151,11cyclictest1611001-21taskset3
154033799151,10cyclictest1540526-21taskset3
154033799141,9cyclictest1896295-21taskset3
154033799141,9cyclictest1810482-21taskset3
154033799141,8cyclictest15812572sleep33
1540337991413,0cyclictest0-21swapper/33
1540337991412,1cyclictest0-21swapper/33
1540337991412,1cyclictest0-21swapper/33
1540337991412,1cyclictest0-21swapper/33
1540337991412,1cyclictest0-21swapper/33
1540337991412,1cyclictest0-21swapper/33
1540337991412,0cyclictest0-21swapper/33
1540337991411,1cyclictest0-21swapper/33
1540337991411,1cyclictest0-21swapper/33
1540337991411,1cyclictest0-21swapper/33
1540337991411,1cyclictest0-21swapper/33
1540337991411,1cyclictest0-21swapper/33
1540337991411,1cyclictest0-21swapper/33
1540337991411,1cyclictest0-21swapper/33
154033799141,10cyclictest1786938-21turbostat3
154033799141,10cyclictest1722188-21chrt3
154033799141,10cyclictest1703108-21chrt3
154033799141,10cyclictest1692840-21taskset3
154033799141,10cyclictest1631869-21chrt3
154033799134,7cyclictest1780220-21taskset3
154033799131,9cyclictest1915577-21turbostat3
154033799131,9cyclictest1889871-21taskset3
154033799131,9cyclictest1864197-21chrt3
154033799131,9cyclictest1864197-21chrt3
154033799131,9cyclictest1792368-21taskset3
154033799131,9cyclictest1671827-21taskset3
154033799131,9cyclictest1657922-21taskset3
154033799131,9cyclictest16200012sleep33
154033799131,9cyclictest1605852-21taskset3
154033799131,7cyclictest18577622sleep33
1540337991312,0cyclictest0-21swapper/33
1540337991312,0cyclictest0-21swapper/33
1540337991311,1cyclictest0-21swapper/33
154033799131,10cyclictest1967783-21taskset3
1540337991310,1cyclictest0-21swapper/33
1540337991310,1cyclictest0-21swapper/33
1540337991310,1cyclictest0-21swapper/33
154033799130,10cyclictest1882800-21taskset3
301798120,8rtkit-daemon1915305-21seq2
301798120,5rtkit-daemon3205-21sendmail-mta2
17635012120,2sleep134-21ksoftirqd/11
16903902121,3sleep11690433-21munin-run1
16089312120,2sleep21611000-21kthreadcore2
15619432122,6sleep01561976-21apt-get0
154033799129,1cyclictest0-21swapper/33
154033799121,8cyclictest1825069-21taskset3
1540337991211,0cyclictest0-21swapper/33
154033799120,9cyclictest1851316-21taskset3
154033799120,9cyclictest1560807-21taskset3
301798110,3rtkit-daemon636-21snmpd2
301798100,6rtkit-daemon1838477-21/usr/sbin/munin2
301798100,5rtkit-daemon1844923-21apt-get2
301798100,4rtkit-daemon1683154-21/usr/sbin/munin2
301798100,2rtkit-daemon1573614-21strings0
19098492102,6sleep01910682-21cut0
18918962100,7sleep01893945-21tr0
18513632101,6sleep01851446-21cpuspeed_turbos0
18182012100,4sleep21818314-21smartctl2
17227592101,5sleep11722891-21grep1
16471352101,7sleep01648357-21grep0
15938072101,6sleep21593830-21basename2
15931222101,2sleep10-21swapper/11
30179890,5rtkit-daemon636-21snmpd2
30179890,5rtkit-daemon3205-21sendmail-mta2
30179890,5rtkit-daemon317-21systemd-udevd2
30179890,5rtkit-daemon1882305-21ntp_states2
30179890,5rtkit-daemon1546816-21munin-node2
30179890,5rtkit-daemon1534333-21fschecks_count0
30179890,4rtkit-daemon448-21wpa_supplicant2
30179890,4rtkit-daemon1886286-21grep2
30179890,4rtkit-daemon1697065-21/usr/sbin/munin2
30179890,4rtkit-daemon1648705-21cut2
30179890,3rtkit-daemon492-21gmain2
30179890,3rtkit-daemon3200908-21packagekitd2
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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