On Monday 15 Dec 2008, M Rathburn wrote:
> We're having a slight problem with Adobe Reader 8.whatever being somewhat
> slow on our thin clients.  The screen updates are what's slow - the file is
> already downloaded completely and displayed.  We're running on a
> big-phat-juicy server, so the problem isn't going to be in lack of
> processing power there.  So I'm wondering what some workarounds or other
> options there are.

Under Edit Preferences | Internet you could try switching off the Fast Web 
View, and also make sure that you enter a proxy server in the Internet 
settings.  These were workarounds to stop 100% CPU usage, which may or may 
not be fixed now.  Anyway its a two-second thing to try, so worth doing.

We find all the pdf readers to be slow when scrolling if they're maximised for 
page width.  I've always just accepted that that is a factor of LTSP.

> 1. If we ran Adobe Reader as a local app, would that help or hinder?  Does
> anyone have experience with that? and if so, what are the configuration
> steps necessary to make that happen?

I've never used local apps, so I am probably revealing my ignorance here;  
I've always assumed that it was necessary for PDF reader to be on the same 
machine as the file manager, email client and browser - i.e. the three 
applications that actually use the pdf reader.

> 2. What are some other alternative PDF reader programs available that have
> similar capabilities as Adobe Reader, but would be faster to render?  Ex:
> We need to be able to view thumbnails, and also to be able to read
> annotations.

I like kpdf, but at the end of the day, acroreads printing abilities are 
absolutely superb - in particular the ability for end users (i.e. non geeks) 
to be able to create booklets is just fantastic.  Also, kpdf does not enable 
field input - which you simply need to be able to do on occasion.  But we do 
not find any performance problems (other than the scrolling) on our dual 
quad-core xeon system with 4gb ram and 25 users.

-- 
Chris Roberts

LTSP Version    : 5.1.10-1~40
Windows Manager : KDE 3.5.5
Distribution    : Debian Etch
Kernel          : 2.6.22-3-k7

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