Version 5 (modified by 7 years ago) (diff) | ,
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OpenGL Applications
You can run OpenGL applications in an xpra session in a number of ways:
- by running the xpra session directly on a "real" X11 server using an accelerated display driver - this is hard to setup and undocumented: you need to use the
xvfb
switch to start an accelerated X11 server - by shadowing an existing accelerated X11 server (sub-optimal)
- by using VirtualGL
This is not related at all to the OpenGL client rendering: you can connect with any client you want, accelerated or not.
VirtualGL setup
Usually, you can just vglrun
your application and things will "just work".
That is the case for simple application like glxgears
/ glxspheres
.
Other applications may require more complicated workarounds, see the extensive VirtualGL documentation for details, in particular 12: Using VirtualGL with setuid/setgid Executables.
Caveat: for some unknown reason, you may need to use /etc/ld.so.preload
instead of LD_PRELOAD
to make some suid applications work through xpra. (#898)
Temporary solution:
$ mv /etc/ld.so.preload /etc/ld.so.preload.saved >& null $ echo "/usr/lib64/VirtualGL/libdlfaker.so /usr/lib64/VirtualGL/libgefaker.so /usr/lib64/VirtualGL/librrfaker.so" > /etc/ld.so.preload $ vglrun yourapp $ rm /etc/ld.so.preload $ mv /etc/ld.so.preload.saved /etc/ld.so.preload >& null
If you application is suid, you may also need to chmod it.
OpenGL Performance
Some rough figures and compatibility tests.
Running GpuTest 0.7.0, on a Fedora 22 system with a GeForce GTX 760/PCIe/SSE2
, kernel 4.0.5, nvidia driver 346.59
at 1024x720 resolution:
Platform | Test | |||||||
---|---|---|---|---|---|---|---|---|
FurMark? | TessMark? X8 | PixMark? JuliaFP32 | PixMark? Volplosion | |||||
Points | FPS | Points | FPS | Points | FPS | Points | FPS | |
Bare Metal | 4283 | 71 | 87143 | 1453 | 29994 | 498 | 2969 | 49 |
vglrun | 3769 | 62 | 8842 | 147 | 10621 | 177 | 2696 | 44 |
vmplayer Windows 7 Ultimate 64-bit | 1736 | 28 | failed | 3459 | 57 | failed |
Note: VirtualBox 4.3.x failed to launch any of the tests and is not included here.