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2026-01-13 - 11:32
[ 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 13, 2026 00:44:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2296618993225,5cyclictest252-21systemd-journal00:33:052
2296614992925,3cyclictest2504791-21kworker/u8:1+events_unbound22:50:221
2296609992824,3cyclictest2545875-21kworker/u8:1+flush-259:023:25:150
2296623992722,4cyclictest2556136-21latency_hist23:25:003
2296623992622,3cyclictest252-21systemd-journal00:30:013
2296614992622,3cyclictest2566655-21apt-get23:35:121
2296614992622,3cyclictest2306589-21kworker/u8:2+flush-259:019:30:211
2296614992621,3cyclictest2358820-21kworker/u8:0+events_unbound20:45:021
2296623992520,4cyclictest2447680-21kworker/u8:4+events_unbound21:50:033
2296623992519,4cyclictest252-21systemd-journal22:20:013
2296614992523,1cyclictest2525204-21kworker/u8:3+events_unbound00:20:131
2296614992521,3cyclictest2525204-21kworker/u8:3+flush-259:000:33:041
2296614992521,3cyclictest2447680-21kworker/u8:4+flush-259:021:55:211
2296618992419,3cyclictest2520311-21apt-get22:50:112
2296614992420,3cyclictest2545875-21kworker/u8:1+flush-259:023:20:151
2296614992420,3cyclictest2390893-21kworker/u8:1+events_unbound20:55:141
2296614992419,3cyclictest2353895-21/usr/sbin/munin20:05:151
2296618992320,2cyclictest2416847-21kworker/u8:0+flush-259:021:45:312
2296618992319,3cyclictest2473708-21kworker/u8:2+flush-259:022:50:002
2296618992310,3cyclictest2317628-21fschecks_count19:30:122
2296614992316,5cyclictest2504572-21latency_hist22:35:011
2296609992319,3cyclictest2333262-21kworker/u8:3+events_unbound19:50:190
2296609992317,4cyclictest2401130-21latency_hist20:55:000
2296623992218,3cyclictest252-21systemd-journal20:10:003
2296623992217,4cyclictest2546097-21apt-get23:15:123
2296623992217,4cyclictest2364592-21cp20:15:013
2296618992215,5cyclictest2300820-21ntpq19:10:242
2296614992219,2cyclictest2473708-21kworker/u8:2+events_unbound22:25:241
2296614992216,5cyclictest252-21systemd-journal23:19:591
2296614992215,5cyclictest2379895-21latency_hist20:30:021
2296609992219,2cyclictest2447680-21kworker/u8:4+events_unbound22:20:180
2296609992219,2cyclictest211rcuc/022:10:000
2296609992217,4cyclictest2596903-21ntpq00:00:230
2296609992217,4cyclictest2587049-21gpgv23:55:010
2296609992217,4cyclictest2530367-21apt-get23:00:000
2296618992115,4cyclictest2608430-21diskstats00:15:142
2296618992114,5cyclictest252-21systemd-journal22:45:012
2296614992118,2cyclictest3403406-21kworker/u8:3+flush-259:019:10:191
2296614992117,3cyclictest2525204-21kworker/u8:3+flush-259:000:35:181
2296614992117,3cyclictest2504791-21kworker/u8:1+events_unbound22:35:231
2296614992117,3cyclictest2333262-21kworker/u8:3+events_unbound20:15:131
2296614992115,4cyclictest2478829-21latency_hist22:10:001
2296609992119,1cyclictest0-21swapper/000:19:590
2296609992117,3cyclictest2400846-21kworker/u8:3+flush-259:021:15:200
2296609992114,5cyclictest2498547-21ntpq22:25:210
2296623992016,3cyclictest2370214-21kworker/u8:1+flush-259:020:20:193
2296614992017,2cyclictest2530972-21kworker/u8:0+flush-259:023:10:131
2296614992017,2cyclictest2447680-21kworker/u8:4+events_unbound21:55:001
2296614992017,2cyclictest0-21swapper/120:15:001
2296614992016,3cyclictest2530972-21kworker/u8:0+flush-259:023:05:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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