Hi,
On Wed, 21 May 2008, Anthony Liguori wrote:
Johannes Schindelin wrote:
On Tue, 20 May 2008, Anthony Liguori wrote:
Clearly, you have never waited one minute for a full screen update
from a machine half around the planet.
That is what happens here with hextile + an compressed SSH tunnel,
just in case you thought this was pure speculation.
It is pretty obvious why, too: generic compression, such as SSH's,
will never outperform specialized compression, such as tight
compression.
Tight uses zlib compression in combination with a palette mechanism.
Hextile is a palette mechanism so adding zlib compression to it (via
ssh) makes it pretty comparable to Tight.
I'm awfully short on time, so this is only a hint to the explanation:
Tight compression can fall back to a Jpeg scheme which is lossy. You
obviously did not know that, and obviously this is what I have to use to
make VNC usable.