Re: [orca-list] systemrequirements for orca?

[Willie Walker <William Walker Sun COM>]

Hi Halim:

I think we can break this into separate, but related, problems.  One 
problem is helping understand the minimal and optimal machine 
configurations needed to run Orca.  I think a community page for people 
to log/share their experiences is a useful way to help figure this out.

The other problems are making Orca run better, faster and smaller, which 
are top priorities for Orca for GNOME 2.22.  That is, our immediate 
answers will not be "buy more memory" or "get a faster CPU."  Instead, 
we are analyzing the performance hot spots of Orca at this very moment 
and are working on ways to improve performance.  For example, there is 
currently sluggishness that happens in Orca as the result of the bursty 
nature of AT-SPI events when new windows are created or old windows are 
destroyed.  The thing we end up running into in these situations is a 
whole lot of traffic for new children being added or removed from the 
hierarchy.  We're *actively* looking into ways to prevent this traffic 
from happening.

Note that we may not be able to solve all performance problems.  For 
example, when I open /usr/bin in nautilus (1367 items on my machine), it 
takes about 15 seconds for anything to appear in the window, regardless 
of whether Orca is running or not.  So, I think part of the performance 
problems we see will have to do with the applications themselves.

Will

Halim Sahin wrote:
> Hello Will and list,
>
> I am not sure if this is the right thing to do with this topic!
> The main problem I think is that orca and the accessibility stuff under
> gnome consumes too much cpu power.
> The work must go on to get this fixed.
>
> Examples:
> Currently I am not able to open dirs with many files in it like
> /usr/bin. It takes 30 Sec and sometimes it never opens.
> I tested this under gento, ubuntu gutsy and debian sid.
>
> 2. opening and closing windows is very slow.
> try to insert alt+f2 you will see what I mean.
>
> Evolution is one of these apps which I find is really unusable if you
> want to do serious work.
>
> Orca hangs offten while a application is trying to close its window.
>
> Yes I checked out latest atspi and pyatspi but could not 
> see any speed improovements.
>
> Regards
> Halim