Kent Peacock wrote:
>>> On 09/03/09 09:17, Sammy Atmadja wrote:
>>> > A lot of newer software (for example firefox 3) relies on having
>>> the
>>> > RENDER extension available on the X-server. When it's not
>>> available it
>>> > tries it tries to compensate for it which results in high network
>>> > traffic, as it copies a lot of data back and forth.
>
> Don't expect support for XRENDER to be very helpful. You have to
> remember that there is no graphics hardware anywhere near where this has
> to be done, so it will necessarily be done in software. On a Niagara
> that will be *extremely* painful.
The same work has to happen on someone's CPU - if the server supports
XRENDER, it's done with local access to the pixmaps in server RAM, if
not, then it's done by the client retrieving the pixmap over the wire,
doing it on it's CPU and then sending the pixmap back to the server,
who then has to figure out which pixels changed to send those to the
DTU.
That's the win for XRENDER with remote X11 apps - much less X client <->
server bandwidth for the same image to appear on screen.
--
-Alan Coopersmith- [email protected]
Sun Microsystems, Inc. - X Window System Engineering
_______________________________________________
SunRay-Users mailing list
[email protected]
http://www.filibeto.org/mailman/listinfo/sunray-users
