Multiseat config performance
Patrick.Begou at hmg.inpg.fr
Fri Nov 12 08:04:41 PST 2010
My aim is to build a multiseat config with 2 nvidia boards, 2 monitors,
2 keyboards and 2 mouses for 3D CFD data visualisations.
I'm using the nvidia driver. To launch my test config I had to setup
:0 local /usr/bin/Xorg :0 -config /root/xorg.conf.new -layout seat0
-nolisten tcp -br vt7
:1 local /usr/bin/Xorg :1 -config /root/xorg.conf.new -layout seat1
-nolisten tcp -br vt8 -sharevts
I've read on several discussions that the "-sharevts" should be used (it
does'nt work without it) but I do not understand what this option does
and it is not documented in xorg man page.
But I've still some problems with this config. To run a first test, I've
used glxgears. Even if I have 2 graphic boards, if I launch glxgears in
the 2 sessions the application is 30% slower tan if it is runing only in
one session from7370 FPS to 5290 FPS.
The server is a 6 cores Xeon with 24Gbytes of memory with two nvidia
FX4800 and each glxgears is on a separate core, runing at 100%.
Thanks for your advices.
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