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2026-01-26 - 03:14
[ 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 #b, 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.

Note that this system runs a non-RT kernel.
Data to construct the above plot have been generated using the RT test utility cyclictest.

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 20 highest latencies:
System rackbslot7s.osadl.org (updated Sun Jan 18, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15551256796,5656sleep313981-21kworker/3:123:15:433
15551256796,5656sleep313981-21kworker/3:123:15:433
8524210037,961sleep38568-21ntpq21:09:443
29724279214,761sleep129735-21/usr/sbin/munin22:14:521
3149727075,691sleep031364-21kworker/0:122:22:050
3149727075,691sleep031364-21kworker/0:122:22:050
938126458,628sleep11074-1kworker/1:1H19:25:451
29107262415,590sleep129108-21sendmail-mta23:57:231
482524985,475sleep012185-1kworker/0:1H20:58:390
482524985,475sleep012185-1kworker/0:1H20:58:390
2217024847,467sleep13676-1kworker/1:0H21:52:311
2217024847,467sleep13676-1kworker/1:0H21:52:311
1407324566,443sleep013044-1kworker/0:3H21:26:210
17732241412,386sleep117806-21find23:19:491
2971424087,389sleep13676-1kworker/1:0H23:59:371
1515623767,361sleep26345-1kworker/2:2H23:13:032
1515623767,361sleep26345-1kworker/2:2H23:13:032
1894236376,261sleep31987-21fschecks_time00:14:373
2038623456,328sleep330095-21snmpd20:00:033
20728233452,238sleep320933-21latency_hist21:49:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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