On 11/29/11 4:14 AM, Pierre Ossman wrote:
>> It would really be nice to quantify it somehow, because it doesn't seem
>> to be any better in terms of responsiveness, either. I'm testing up in
>> the range of 100-200 ms ping time, or rather, 50-100 ms added on both ends.
>
> That's odd. Maybe it's not being properly enabled. Are you getting
> "enabling continuous updates" in the output from the client?
>
> The only numbers you can easily get is to turn on the debugging info
> for the congestion control. There's a define at the top of
> VNCSConnection.cxx. It will also provide the kernel's view of things
> for reference (only relevant if you're not using any proxying).
Yes, I'm getting the "enabling continuous updates" message. How I'm
testing is to look at responsiveness when running 'vglrun glxspheres -i
-fs' with quality=1 and compress level=1. I move the mouse across the
screen and gauge (with a stopwatch) how long it takes for the server to
"catch up." It's consistently about 1.5 seconds both before and after
the high-latency modifications. TurboVNC performs similarly with
similar quality/compress level ("Low-Quality JPEG preset.")
GLXspheres at this quality level is going to cause Tiger/TurboVNC to
generate about 0.5 Mbits/frame of data at 1240x900, so if the frame rate
is not latency-limited, TigerVNC should be capable of at least 5-6 Hz
given the effective bandwidth of the 10 Mbit connection. However, it
seems to be still generating about 3 Hz, the same as it did before the
modifications.
I also do not notice any difference when typing into a console window,
moving windows around, etc. Further, it appears that double buffering
is not working quite right, but that's the case in the pre-modified
build as well.
------------------------------------------------------------------------------
All the data continuously generated in your IT infrastructure
contains a definitive record of customers, application performance,
security threats, fraudulent activity, and more. Splunk takes this
data and makes sense of it. IT sense. And common sense.
http://p.sf.net/sfu/splunk-novd2d
_______________________________________________
Tigervnc-devel mailing list
Tigervnc-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/tigervnc-devel
