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2026-01-20 - 12:57
[ 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 50 highest latencies:
System rackeslot4s.osadl.org (updated Tue Jan 20, 2026 00:44:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3814430993935,3cyclictest3819602-21kworker/u8:3+flush-259:019:49:591
3814425993932,5cyclictest4036844-21latency_hist22:45:010
3814425993924,4cyclictest3897461-21apt-get20:30:100
3814436993431,2cyclictest4083795-21kworker/u8:0+events_unbound00:10:203
3814433993432,1cyclictest4036872-21fwupd22:45:022
3814425993429,3cyclictest3813947-21kworker/u8:0+flush-259:019:45:150
3814430993330,2cyclictest3876145-21kworker/u8:1+flush-259:021:20:011
3814430993329,3cyclictest3959179-21apt-get21:26:201
3814430993329,3cyclictest3819602-21kworker/u8:3+flush-259:019:55:001
3814425993326,5cyclictest4156107-21ntpq00:35:190
3814425993326,5cyclictest3911842-21ntpq20:40:220
3814433993227,4cyclictest4021377-21latency_hist22:30:002
3814425993127,3cyclictest3824961-21apt-get19:20:110
3814425993124,4cyclictest4073428-21latency_hist23:20:010
3814436993025,3cyclictest4151873-21kworker/u8:1+flush-259:000:35:133
3814430993024,4cyclictest3985306-21latency_hist21:55:001
3814425992924,3cyclictest252-21systemd-journal23:28:220
3814425992923,4cyclictest3964724-21latency_hist21:35:010
3814436992824,3cyclictest3902251-21kworker/u8:3+flush-259:020:50:203
3814436992823,3cyclictest3876145-21kworker/u8:1+flush-259:020:40:193
3814425992824,3cyclictest252-21systemd-journal20:29:590
3814425992823,4cyclictest252-21systemd-journal19:15:010
3814436992723,3cyclictest3923047-21kworker/u8:2+flush-259:021:15:133
3814430992722,3cyclictest252-21systemd-journal20:26:271
3814430992721,4cyclictest3819822-21apt-get19:15:121
3814433992622,3cyclictest4026559-21kworker/u8:0+flush-259:023:00:182
3814430992619,5cyclictest4087954-21ntpq23:30:211
3814425992623,2cyclictest1-21systemd22:31:270
3814425992621,3cyclictest4026559-21kworker/u8:0+flush-259:023:05:170
3814433992521,3cyclictest3949949-21kworker/u8:0+flush-259:021:54:592
3814430992523,1cyclictest4036872-21fwupd22:45:011
3814430992521,3cyclictest3876145-21kworker/u8:1+flush-259:020:20:001
3814425992519,4cyclictest252-21systemd-journal23:58:280
3814436992420,3cyclictest4083795-21kworker/u8:0+flush-259:000:20:173
3814433992420,3cyclictest4057538-21kworker/u8:3+flush-259:023:20:192
3814430992420,3cyclictest4026559-21kworker/u8:0+flush-259:023:00:161
3814425992417,5cyclictest3865002-21ntpq19:55:190
3814425992417,5cyclictest252-21systemd-journal20:58:270
3814436992317,4cyclictest4089542-21/usr/sbin/munin23:35:143
3814436992317,4cyclictest4052361-21latency_hist23:00:013
3814436992317,4cyclictest3871047-21latency_hist20:05:013
3814436992315,5cyclictest252-21systemd-journal00:25:013
3814433992320,2cyclictest3781134-21kworker/u8:1+flush-259:019:15:252
3814433992316,5cyclictest4129853-21ntpq00:10:212
3814436992218,3cyclictest4026559-21kworker/u8:0+flush-259:022:45:153
3814436992216,4cyclictest4068467-21cat23:15:013
3814436992216,4cyclictest3819602-21kworker/u8:3+flush-259:019:30:003
3814433992218,3cyclictest4042031-21kworker/u8:2+events_unbound23:15:002
3814430992219,2cyclictest3902251-21kworker/u8:3+flush-259:021:35:011
3814430992218,3cyclictest3813947-21kworker/u8:0+flush-259:020:25:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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