Re: [orca-list] Firefox caching

[Isaac Porat <isaac porat me uk>]

Hi

This was the same response to a similar question by somebody else 
perhaps a year ago.  I am using two screen readers in Windows one 
commercial and the other free both use caching.  If they struggle with 
the technique there is no sign of it - the response is snappy!  There 
are possible solutions to the problem you raise for example partial 
refresh.

Of course the reasons for slow response can be other things as outlined 
in other recent posting but lack of caching is a contributor I suspect 
not an insignificant one.

Regards
Isaac

On 11/09/2010 14:44, Jared Wright wrote:
> I feel this creates many more problems than it solves given the 
> dynamic nature of the web in 2010. The screen readers that employ 
> these virtual  buffers find themselves  struggling with  buffers 
> becoming  outdated  due to Javascript   or other client-side 
> technologies that modify  the document object model without reloading 
> the page, which is the trigger for the   caching process used by these 
> screen readers. Sluggishness notwithstanding,  Orca's foresaking the 
> use of virtual buffers is one of its greatest advantages in my 
> opinion, and I am confident there are  more effective  ways to improve 
> Orca's performance in HTML environments..
> On 09/11/2010 06:33 AM, Isaac Porat wrote:
> > Hi
> >
> > My impression based on watching many messages on the Vinux list and 
> > my own experience that a major barrier for people not using Linux 
> > more intensively is lacking performance with Firefox and to a lesser 
> > extent Thunderbird probably the most two significant applications for 
> > most people.
> >
> > Leaving aside the important subjects of perhaps rewriting some parts 
> > of the code and algorithm efficiency,  most screen reader are using a 
> > caching mechanism for the web pages to speed things along call it 
> > virtual buffers or something else (nothing to do with any off screen 
> > model which is of no relevance to Orca) I wonder if this is something 
> > that could be considered seriously.
> >
> > To my mind the subject of sluggish response especially in critical 
> > applications is by far the main issue, otherwise Orca does a good job
> >
> > Regards
> > Isaac
> >
> >
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> _______________________________________________
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> http://mail.gnome.org/mailman/listinfo/orca-list
> Visit http://live.gnome.org/Orca for more information on Orca.
> The manual is at 
> http://library.gnome.org/users/gnome-access-guide/nightly/ats-2.html
> The FAQ is at http://live.gnome.org/Orca/FrequentlyAskedQuestions
> Netiquette Guidelines are at 
> http://live.gnome.org/Orca/FrequentlyAskedQuestions/NetiquetteGuidelines
> Log bugs and feature requests at http://bugzilla.gnome.org
> Find out how to help at http://live.gnome.org/Orca/HowCanIHelp