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2026-02-06 - 22:31
[ 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 Feb 06, 2026 12:44:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3344756995955,3cyclictest3574250-21kworker/u8:1+flush-259:011:55:122
3344753995853,3cyclictest3621370-21kworker/u8:2+events_unbound11:55:221
3344761994644,1cyclictest3643651-21lspci11:55:083
3344761994437,5cyclictest3553310-21latency_hist10:30:013
3344761993936,2cyclictest3417295-21kworker/u8:1+events_unbound08:43:573
3344756993935,3cyclictest3511905-21kworker/u8:2+events_unbound09:55:152
3344751993934,3cyclictest3648186-21scp11:55:230
3344761993837,1cyclictest1293985-21kworker/u8:0+events_unbound07:45:013
3344761993834,3cyclictest3531639-21kworker/u8:0+events_unbound11:29:093
3344756993835,2cyclictest3475817-21kworker/u8:3+flush-259:009:15:212
3344761993734,2cyclictest3417295-21kworker/u8:1+events_unbound08:35:033
3344761993734,2cyclictest3380737-21kworker/u8:3+events_unbound07:54:083
3344756993633,2cyclictest3475817-21kworker/u8:3+flush-259:010:15:152
3344756993633,2cyclictest3475817-21kworker/u8:3+flush-259:010:15:152
3344761993532,2cyclictest3660646-21kworker/u8:2+events_unbound12:25:083
3344761993431,2cyclictest3574250-21kworker/u8:1+events_unbound11:44:263
3344753993431,2cyclictest3658906-21kworker/u8:1+events_unbound12:30:211
3344761993330,2cyclictest3636381-21kworker/u8:3+events_unbound12:10:093
3344761993329,3cyclictest3475817-21kworker/u8:3+events_unbound10:34:093
3344756993330,2cyclictest3660625-21latency_hist12:15:002
3344756993330,2cyclictest3531639-21kworker/u8:0+flush-259:010:40:212
3344761993230,2cyclictest3660646-21kworker/u8:2+events_unbound12:18:083
3344761993229,2cyclictest3450112-21kworker/u8:2+events_unbound08:57:093
3344756993228,3cyclictest3407268-21kworker/u8:2+events_unbound08:10:012
3344751993226,4cyclictest3676037-21latency_hist12:30:000
3344761993128,2cyclictest3459570-21kworker/u8:0+events_unbound09:09:573
3344756993127,3cyclictest3671168-21apt-get12:25:112
3344756993127,3cyclictest3450112-21kworker/u8:2+events_unbound09:10:122
3344753993127,3cyclictest3417784-21kworker/u8:4+flush-259:008:20:181
3344753993124,5cyclictest3642403-21latency_hist11:55:001
3344761993027,2cyclictest3444369-21kworker/u8:3+events_unbound08:49:083
3344756993027,2cyclictest3532735-21kworker/u8:4+flush-259:010:55:002
3344756993027,2cyclictest3444369-21kworker/u8:3+flush-259:008:45:222
3344751993024,4cyclictest3589055-21ntpq11:00:210
3344761992926,2cyclictest3648912-21kworker/u8:0+events_unbound12:05:093
3344761992921,5cyclictest3490031-21ntpq09:25:223
3344753992923,4cyclictest3557589-21ntpq10:30:201
3344761992825,2cyclictest3636381-21kworker/u8:3+events_unbound12:24:573
3344756992825,2cyclictest3595353-21kworker/u8:3+flush-259:011:10:212
3344756992825,2cyclictest3574250-21kworker/u8:1+flush-259:010:55:212
3344756992825,2cyclictest3475817-21kworker/u8:3+flush-259:009:25:152
3344756992825,2cyclictest1293985-21kworker/u8:0+events_unbound08:00:122
3344753992823,4cyclictest3360440-21apt-get07:25:121
3344751992824,3cyclictest3438575-21apt-get08:40:000
3344751992823,4cyclictest3568840-21latency_hist10:45:010
3344761992724,2cyclictest3469906-21kworker/u8:1+events_unbound09:50:083
3344761992722,3cyclictest509-21rs:main3
3344761992721,4cyclictest3558738-21apt-get10:35:133
3344756992724,2cyclictest3605147-21kworker/u8:4+flush-259:011:30:212
3344756992724,2cyclictest3542962-21kworker/u8:2+events_unbound10:25:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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