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2026-02-15 - 07:26
[ 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 100 highest latencies:
System rackeslot4s.osadl.org (updated Sun Feb 15, 2026 00:44:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3418738994036,3cyclictest3621235-21kworker/u8:1+events_unbound22:45:251
3418738994035,4cyclictest3548640-21kworker/u8:0+flush-259:021:50:251
3418738993833,3cyclictest3661653-21kworker/u8:4+flush-259:023:05:271
3418738993632,3cyclictest3600200-21kworker/u8:2+flush-259:022:10:161
3418742993529,4cyclictest3631511-21latency_hist22:35:012
3418738993431,2cyclictest3376484-21kworker/u8:3+flush-259:019:55:261
3418746993330,2cyclictest3465609-21kworker/u8:2+flush-259:020:40:143
3418742993327,4cyclictest3646968-21latency_hist22:50:012
3418742993327,4cyclictest3625485-21ntpq22:25:222
3418736993228,3cyclictest3376484-21kworker/u8:3+flush-259:019:55:260
3418738993127,3cyclictest3687617-21kworker/u8:1+flush-259:023:25:251
3418746993025,3cyclictest3642057-21apt-get22:45:123
3418738993025,4cyclictest3626618-21apt-get22:30:121
3418736993025,3cyclictest3595714-21apt-get22:00:120
3418736993025,3cyclictest3434421-21apt-get19:25:120
3418746992923,4cyclictest252-21systemd-journal19:55:013
3418742992924,3cyclictest3647214-21kworker/u8:0+flush-259:022:55:192
3418742992922,5cyclictest3538581-21apt-get21:05:102
3418738992923,4cyclictest252-21systemd-journal00:24:071
3418742992821,5cyclictest252-21systemd-journal20:22:432
3418738992825,2cyclictest3740197-21kworker/u8:2+events_unbound00:25:231
3418738992825,2cyclictest3615998-21kworker/u8:2+flush-259:000:00:171
3418738992824,3cyclictest3615998-21kworker/u8:2+events_unbound23:55:151
3418738992824,3cyclictest3512176-21kworker/u8:1+flush-259:022:05:001
3418738992823,3cyclictest3693413-21kworker/u8:0+flush-259:023:35:241
3418736992823,3cyclictest3621480-21apt-get22:25:130
3418746992722,4cyclictest3616476-21diskstats22:20:133
3418742992722,4cyclictest3589450-21ntpq21:50:222
3418742992721,4cyclictest3678273-21latency_hist23:20:002
3418742992721,4cyclictest3450254-21/usr/sbin/munin19:40:152
3418738992724,2cyclictest3751449-21apt-get00:30:121
3418738992724,2cyclictest3615998-21kworker/u8:2+flush-259:022:40:231
3418738992722,4cyclictest3538337-21kworker/u8:2+flush-259:021:35:191
3418738992721,4cyclictest252-21systemd-journal21:20:071
3418738992620,4cyclictest3652403-21apt-get22:55:131
3418738992619,5cyclictest3661547-21ntpq23:00:251
3418736992621,3cyclictest3564261-21cp21:30:000
3418736992620,4cyclictest252-21systemd-journal22:35:010
3418742992521,3cyclictest3376484-21kworker/u8:3+events_unbound19:35:252
3418742992520,3cyclictest252-21systemd-journal22:24:072
3418738992519,4cyclictest252-21systemd-journal19:39:081
3418738992518,5cyclictest1-21systemd23:50:001
3418736992519,5cyclictest3511295-21ntpq20:35:200
3418742992417,5cyclictest3439668-21cat19:30:012
3418738992420,3cyclictest3615998-21kworker/u8:2+flush-259:022:35:261
3418738992420,3cyclictest3548640-21kworker/u8:0+events_unbound21:30:121
3418738992420,3cyclictest3486469-21kworker/u8:0+flush-259:020:55:151
3418738992417,5cyclictest3703991-21latency_hist23:45:001
3418746992319,3cyclictest3475879-21gpgv20:05:003
3418742992319,3cyclictest3376484-21kworker/u8:3+flush-259:019:50:172
3418738992319,3cyclictest3621235-21kworker/u8:1+events_unbound22:25:171
3418738992319,3cyclictest3580241-21kworker/u8:3+events_unbound22:05:081
3418738992318,3cyclictest3709332-21kworker/u8:3+flush-259:000:15:011
3418738992316,5cyclictest3730155-21cat00:10:001
3418736992320,2cyclictest1-21systemd19:55:010
3418736992316,5cyclictest3533604-21diskstats21:00:140
3418746992216,5cyclictest252-21systemd-journal00:30:003
3418742992218,3cyclictest3698896-21kworker/u8:1+flush-259:023:45:232
3418738992219,2cyclictest3538337-21kworker/u8:2+flush-259:021:15:001
3418738992218,3cyclictest3413595-21kworker/u8:1+events_unbound19:25:071
3418738992218,3cyclictest3376484-21kworker/u8:3+events_unbound19:35:011
3418738992217,3cyclictest3376484-21kworker/u8:3+flush-259:020:15:161
3418738992215,5cyclictest3480342-21ntpq20:05:211
3418736992217,3cyclictest3528283-21apt-get20:55:120
3418746992118,2cyclictest3724616-21kworker/u8:1+flush-259:000:15:183
3418746992116,4cyclictest3687657-21ntpq23:25:213
3418742992115,3cyclictest3376484-21kworker/u8:3+flush-259:020:35:012
3418738992117,3cyclictest3709332-21kworker/u8:3+events_unbound23:53:111
3418738992117,3cyclictest3709332-21kworker/u8:3+events_unbound23:53:111
3418738992117,2cyclictest0-21swapper/121:05:001
3418736992118,2cyclictest509-21rs:main0
3418746992017,2cyclictest3548640-21kworker/u8:0+flush-259:022:00:163
3418746992017,2cyclictest3419376-21irqcore19:10:273
3418746992017,2cyclictest3419376-21irqcore19:10:263
3418742992018,1cyclictest3672674-21idleruntime-cro23:15:002
3418736992017,2cyclictest3434158-21kworker/u8:0+flush-259:019:44:590
3418736992016,3cyclictest3615998-21kworker/u8:2+flush-259:023:35:250
3418736992014,4cyclictest3517557-21apt-get20:45:120
3418746991915,3cyclictest3704253-21apt-get23:45:113
3418746991915,3cyclictest252-21systemd-journal00:13:043
3418742991916,2cyclictest3512155-21sh20:40:012
3418742991915,3cyclictest3522427-21apt-get20:50:022
3418742991915,3cyclictest3512176-21kworker/u8:1+flush-259:021:25:282
3418742991914,4cyclictest3615998-21kworker/u8:2+flush-259:023:00:192
3418742991913,1cyclictest3693721-21grep23:35:002
3418738991916,2cyclictest3465609-21kworker/u8:2+events_unbound20:35:141
3418738991915,3cyclictest490-21dbus-daemon20:05:011
3418738991914,3cyclictest3724616-21kworker/u8:1+flush-259:000:15:251
3418736991916,2cyclictest3580279-21apt-get21:45:110
3418736991915,3cyclictest3729735-21apt-get00:10:000
3418746991815,2cyclictest3656762-21kworker/u8:3+flush-259:023:15:163
3418746991815,2cyclictest2971-21cron21:24:593
3418746991814,3cyclictest252-21systemd-journal00:00:003
3418746991814,2cyclictest0-21swapper/323:00:003
3418742991815,2cyclictest3418729-21cyclictest20:30:002
3418742991814,3cyclictest3376484-21kworker/u8:3+flush-259:019:15:002
3418742991814,3cyclictest3376484-21kworker/u8:3+flush-259:019:14:592
3418742991813,3cyclictest3465609-21kworker/u8:2+flush-259:020:05:172
3418738991814,3cyclictest3656762-21kworker/u8:3+events_unbound23:18:081
3418736991815,2cyclictest0-21swapper/000:35:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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