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2026-01-30 - 18:53
[ 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 Fri Jan 30, 2026 12:44:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1833780994744,2cyclictest2162064-21kworker/u8:4+events_unbound12:30:232
1833780994643,2cyclictest1791012-21kworker/u8:2+events_unbound07:25:152
1833780994642,3cyclictest1839486-21kworker/u8:0+events_unbound08:10:142
1833773994631,13cyclictest2073012-21ntpq10:55:210
1833780994541,3cyclictest2063799-21kworker/u8:2+events_unbound11:20:152
1833780994340,2cyclictest2125590-21kworker/u8:0+events_unbound11:55:212
1833776994231,9cyclictest1964854-21apt-get09:15:121
1833773994237,4cyclictest2006709-21cat09:55:010
1833780994136,2cyclictest1839486-21kworker/u8:0+events_unbound10:20:142
1833782994033,5cyclictest1973982-21ntpq09:20:203
1833780994037,2cyclictest1839486-21kworker/u8:0+events_unbound08:45:152
1833776994034,4cyclictest1891438-21gpgv08:05:001
1833782993933,5cyclictest1860033-21cat07:35:003
1833780993936,2cyclictest1865430-21kworker/u8:3+events_unbound07:40:142
1833780993936,2cyclictest1865430-21kworker/u8:3+events_unbound07:40:142
1833782993831,5cyclictest1860407-21cat07:35:013
1833782993733,3cyclictest1990753-21kworker/u8:1+flush-259:010:05:163
1833782993731,4cyclictest2011730-21latency_hist10:00:003
1833780993735,2cyclictest2063799-21kworker/u8:2+events_unbound11:35:252
1833780993733,3cyclictest1839486-21kworker/u8:0+events_unbound09:35:002
1833782993525,8cyclictest1902079-21kworker/u8:1+flush-259:008:40:013
1833782993522,11cyclictest2160950-21ntpq12:20:203
1833782993522,11cyclictest2160950-21ntpq12:20:193
1833780993532,2cyclictest2162064-21kworker/u8:4+events_unbound12:35:132
1833780993532,2cyclictest2037846-21kworker/u8:1+events_unbound11:30:202
1833780993532,2cyclictest2037846-21kworker/u8:1+events_unbound11:15:222
1833776993530,4cyclictest1896908-21latency_hist08:10:011
1833780993431,2cyclictest1791012-21kworker/u8:2+events_unbound07:35:042
1833780993330,2cyclictest2037846-21kworker/u8:1+events_unbound11:49:312
1833780993329,3cyclictest2110338-21kworker/u8:3+events_unbound12:22:432
1833780993329,3cyclictest2110338-21kworker/u8:3+events_unbound12:22:422
1833773993319,13cyclictest1985189-21latency_hist09:35:000
1833780993229,2cyclictest2125590-21kworker/u8:0+events_unbound12:05:192
1833780993229,2cyclictest1880929-21kworker/u8:2+events_unbound07:55:122
1833780993228,3cyclictest1839486-21kworker/u8:0+events_unbound09:25:322
1833780993228,3cyclictest1791012-21kworker/u8:2+events_unbound07:31:322
1833780993227,2cyclictest2162064-21kworker/u8:4+events_unbound12:26:432
1833773993226,4cyclictest2016864-21latency_hist10:05:000
1833782993124,5cyclictest1902045-21latency_hist08:15:013
1833780993128,2cyclictest1839486-21kworker/u8:0+events_unbound09:43:312
1833780993127,3cyclictest1839486-21kworker/u8:0+events_unbound10:53:332
1833773993126,3cyclictest1928388-21gpgv08:40:010
1833773993126,3cyclictest1849845-21apt-get07:25:130
1833780993028,2cyclictest1839486-21kworker/u8:0+events_unbound09:50:122
1833780993027,2cyclictest1839486-21kworker/u8:0+events_unbound10:29:312
1833780993027,2cyclictest1839486-21kworker/u8:0+events_unbound09:49:442
1833780993026,3cyclictest1839486-21kworker/u8:0+events_unbound10:42:342
1833780993026,2cyclictest2110338-21kworker/u8:3+events_unbound12:12:412
1833780993024,2cyclictest2037846-21kworker/u8:1+events_unbound10:45:202
1833776993024,4cyclictest1944037-21latency_hist08:55:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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