On Thu, Aug 27, 2009 at 5:20 PM, <cr...@animalhead.com> wrote:

>
> Yes that's the point, but I would substitute 'apache processes' for
> 'mod_perl processes'.
>

This is a mod_perl module, right?


My site's front page preloads sixty-some jpg thumbnails.  Years ago it was
> evident that KeepAlive On was needed to allow this to complete in a
> reasonable length of time. e.g., on a 1.5M ADSL line it takes 2-3 seconds
> with KA on, 6-8 seconds with KA off.  So it seems that connection
> establishment and process dispatch take a while.
>


Got YSlow installed?  Run it on your site.

Have you reviewed this?  http://developer.yahoo.com/performance/rules.html
That's where I'd start.

Others:

http://www.websiteoptimization.com/services/analyze/
http://code.google.com/speed/page-speed/
http://stevesouders.com/hpws/rules.php



> Anything that keeps a connection open forever is going to end up with a lot
> of connections?
>

They are pooled.

http://www.danga.com/perlbal/



> I looked up "sprite sheets" and they seem to be graphics that include lots
> of little tiled figures used in video games.
> How does a browser know to split them up into separate images that pages
> can then call out individually?
>

Ask Google ;)

 http://www.websiteoptimization.com/speed/tweak/css-sprites/





-- 
Bill Moseley
mose...@hank.org

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