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2026-01-22 - 16:15
[ 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 #4

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackeslot4s.osadl.org (updated Thu Jan 22, 2026 00:44:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1847079994843,4cyclictest1804240-21kworker/u8:2+events_unbound19:30:523
1847069994744,2cyclictest75-21kswapd020:50:030
1847069994741,4cyclictest252-21systemd-journal22:35:000
1847079994437,2cyclictest2050655-21kworker/u8:1+flush-259:022:45:213
1847075994238,3cyclictest75-21kswapd019:30:542
1847069994234,5cyclictest2014428-21latency_hist21:50:010
1847079994137,3cyclictest2050655-21kworker/u8:1+flush-259:022:35:213
1847079993835,2cyclictest75-21kswapd021:05:023
1847073993832,4cyclictest2097910-21/usr/sbin/munin23:10:141
1847069993831,5cyclictest1883680-21latency_hist19:45:010
1847069993831,5cyclictest1847293-21apt-get19:10:120
1847079993532,2cyclictest2098718-21kworker/u8:2+flush-259:000:05:163
1847073993532,2cyclictest1804240-21kworker/u8:2+flush-259:019:20:251
1847069993528,5cyclictest2003233-21latency_hist21:40:010
1847073993428,4cyclictest2133731-21latency_hist23:45:011
1847079993329,3cyclictest2149886-21kworker/u8:4+events_unbound00:20:133
1847073993326,5cyclictest2003334-21cp21:40:011
1847079993229,2cyclictest2092244-21kworker/u8:3+flush-259:023:15:233
1847079993127,3cyclictest1831697-21kworker/u8:0+events_unbound19:25:183
1847073993124,5cyclictest1913764-21ntpq20:10:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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