Hi everyone,

I am trying VirtualGL for remote rendering on our visualization
cluster and have it running by now. I am streaming to a GNU/Linux
workstation using the VGL transports as of yet. The remote has a
NVIDIA GeForce GTX 780 GPU.

I measured the following framerates with glxgears:

Locally, on my client machine: ~4500 fps

Remote, without any forwarding or transport: ~27500

X11 forwarding (no virtualgl): ~4500 - ~11000
here the window stays black. Might that be related to the remote
GLX implementation being nvidia and the local is AMD? If I test
with another NVIDIA client, it doesn't work at all, failing with
X Error of failed request:  BadValue (integer parameter out of
range for operation). Is that expected behavior?

Anyways using VirtualGL with the different compression types yields:

proxy (X11): ~240 (with 370Mb/s of the 1000Mb/s LAN connection used)

rgb: ~3300 (880Mb/s used)

jpeg: ~3100 (110Mb/s used)

xv: ~19300 BUT the client window stays black again. What can be
reasons for this, and can I expect such a framerate realistically
in case it works (on a high bandwidth connection)?

yuv: does not work, failing with 
[VGL] ERROR: in operator=--
[VGL]    437: Invalid compression type
Any idea what's happening there?

I want to know wether these are reasonable rates/limitations,
especially the jpeg transport which seems CPU-bound (using 140% cpu
in top). Increasing -np did not change anything significantly.

Also, what is the preferred way of contributing, just send patches
here? I had to fix some stuff in the build system as well as the
scripts to get everything up and running.

Thanks in advance!
-- 
Patric Schmitz <bzk0...@aol.com>

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