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2026-02-25 - 05:06
[ 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 Wed Feb 25, 2026 00:44:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1928039998481,2cyclictest75-21kswapd020:36:533
1928032994946,2cyclictest2020870-21fwupd20:36:501
1928032993731,4cyclictest1949242-21/usr/sbin/munin19:30:161
1928034993329,3cyclictest2186823-21kworker/u8:0+flush-259:023:20:162
1928034993328,4cyclictest2218291-21/usr/sbin/munin23:50:222
1928034993327,4cyclictest1948114-21ntpq19:25:212
1928034993230,1cyclictest132-1kworker/2:1H+kblockd20:36:512
1928034993127,3cyclictest2135316-21kworker/u8:1+flush-259:023:00:212
1928034993127,2cyclictest2083772-21kworker/u8:2+events_unbound22:10:232
1928034993026,3cyclictest1990202-21kworker/u8:1+flush-259:020:25:172
1928032993025,4cyclictest2036914-21apt-get20:55:111
1928029993025,3cyclictest2005950-21apt-get20:25:100
1928029992925,3cyclictest75-21kswapd021:30:010
1928039992822,4cyclictest1978974-21ntpq19:55:203
1928034992825,2cyclictest2041831-21kworker/u8:3+flush-259:021:30:232
1928034992824,3cyclictest2186823-21kworker/u8:0+flush-259:023:35:002
1928034992824,3cyclictest2083772-21kworker/u8:2+flush-259:022:20:202
1928032992823,3cyclictest2155951-21kworker/u8:3+flush-259:000:00:181
1928032992822,4cyclictest2087821-21ntpq21:40:181
1928029992822,4cyclictest1943605-21cat19:25:000
1928034992724,2cyclictest2186823-21kworker/u8:0+events_unbound00:05:222
1928032992722,3cyclictest2078366-21kworker/u8:4+flush-259:022:15:011
1928039992622,3cyclictest2155951-21kworker/u8:3+flush-259:000:00:223
1928034992622,3cyclictest2041831-21kworker/u8:3+flush-259:021:20:222
1928034992620,4cyclictest252-21systemd-journal23:30:002
1928032992619,5cyclictest2051249-21ntpq21:05:221
1928034992522,2cyclictest2186823-21kworker/u8:0+flush-259:023:40:212
1928034992522,2cyclictest2119767-21kworker/u8:0+flush-259:022:35:252
1928034992522,2cyclictest2119767-21kworker/u8:0+flush-259:022:27:122
1928034992522,2cyclictest2052136-21kworker/u8:0+flush-259:021:15:242
1928034992521,3cyclictest2041831-21kworker/u8:3+flush-259:021:00:162
1928032992511,7cyclictest2135276-21awk22:30:011
1928034992419,3cyclictest2186823-21kworker/u8:0+flush-259:023:35:182
1928039992318,3cyclictest252-21systemd-journal00:11:353
1928034992319,3cyclictest2155951-21kworker/u8:3+flush-259:000:35:012
1928034992319,3cyclictest2135316-21kworker/u8:1+flush-259:022:45:172
1928034992319,3cyclictest2078366-21kworker/u8:4+flush-259:021:55:152
1928032992319,3cyclictest507-21in:imuxsock19:55:001
1928032992319,3cyclictest2186823-21kworker/u8:0+flush-259:000:05:261
1928029992319,3cyclictest1907603-21kworker/u8:2+flush-259:020:15:120
1928034992218,3cyclictest2186823-21kworker/u8:0+events_unbound00:15:212
1928032992215,5cyclictest2258267-21ntpq00:25:191
1928032992215,5cyclictest2258267-21ntpq00:25:191
1928029992217,3cyclictest252-21systemd-journal22:28:350
1928039992118,2cyclictest509-21rs:main3
1928039992115,4cyclictest2248891-21latency_hist00:20:013
1928034992118,2cyclictest2186823-21kworker/u8:0+events_unbound23:45:252
1928034992117,3cyclictest1990202-21kworker/u8:1+flush-259:020:30:172
1928034992117,3cyclictest1907603-21kworker/u8:2+events_unbound19:15:002
1928034992115,4cyclictest2057262-21latency_hist21:15:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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