Re: [PATCH] O16.2int

Con Kolivas
2003-08-18T23:40:51Z

On Tue, 19 Aug 2003 02:51, Antonio Vargas wrote:
> On Mon, Aug 18, 2003 at 11:21:04AM +1000, Con Kolivas wrote:
> > Quoting Tom Sightler <ttsig@tuxyturvy.com>:
> > > 2. -- Adobe Acrobat 5.07 for Linux seems to have a very similar issue,
> > > a large complex document seems to starve out the whole system making
> > > the system feel locked up for several seconds.
> >
> > Actually I've profiled acroread and it seems to be more a memory issue
> > than a scheduler one per se. Something very inefficient about it's design
> > and it behaves much worse as a mozilla plugin than standalone. Give it
> > lots of cpu time and it just keeps doing more and more vm work.
>
> Acrobat has a switch so that it keeps a cache of rendered pages, and
> obviously it default to ON, so just reading a big PDF file page by
> page will trash all the system with lots useless data. BUT, for simple
> PDF usage in a non-multitasking single-user machine it's faster
> so there you have a possible reason for it's strange behaviour.

Yes. As well as this though, there is a specific problem with it as a mozilla
plugin. Profiling shows some libgdk is doing all the work and it really
behaves badly. Put the same plugin into a different browser (eg opera) and it
behaves well, working pretty much like standalone acroread.

Con