On Sun, 19 Feb 2012 23:32:22 +0530
vasanth kumar <d.vas...@gmail.com> wrote:

> Hi,
> I was going through protocol improvement technique for high latency
> networks. I adopted your continuous update technique but pausing the
> updates if send data pushed is more than the congestion window. Windows
> vista & above provides APIs to get the congestion window , with this value
> we can get the maximum send bytes that can be kept on wire without
> getting acknowledgement.

Nice to see someone else implementing this. :)

In TigerVNC we purposefully avoid getting congestion window information
from the operating system. The reason for this is that we need to know
the congestion for the entire pathway between the server and viewer,
which might involve more than one TCP connection (proxies). This is why
I also added the Fence extension at the same time as it allows the
server to measure the congestion independently of the transport layer.

> I replaced UVNC server
> with the above implementation & created a separate sourceforge project. You
> can test  the implementation & provide me feedback if you find it
> interesting.
> http://sourceforge.net/projects/cloudvnc/

Was upstream UltraVNC not interested in these improvements?

Rgds
-- 
Pierre Ossman            OpenSource-based Thin Client Technology
System Developer         Telephone: +46-13-21 46 00
Cendio AB                Web: http://www.cendio.com

A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?

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