extreme mem usage under amd64 arch ?

[patrick at cyberwizards.nl]

On Fri, 7 Apr 2006, Robert Leftwich wrote:

I found out that without php the mem usages is more or less normaal.

no diffs for php4/5 (same big mem usage)

;-(

>> Hope someone can shine a light for me on this,
>
> Sorry, I can't do a lot more than 'me too'
>
> I reported similar issues on an asus a8n-sli with dual athlon's running 
> STABLE 6 some time back w/o anyone being able to shed light on it.
>
> Do you have the ability to run the latest 6.1 beta? If so, and your 
> experience is like mine, the problem goes away. I'm  running the exact same 
> setup on 6.1b4 as I was on 6 stable and I don't see anywhere near the same 
> amount of mem usage as I did before - in fact I've been able to triple some 
> of my Postgres buffer settings with the 4G of ram not even 1/2 fully 
> utilised.
>
> I saw very similar memory sizes with httpd as you reported before I switched 
> to lighttpd (which interestingly did not have the same problem on STABLE 6 - 
> always using around 17M) but some Python processes I was running regularly 
> maxed out at over 1.4G, now it's down in the 400M range doing the same 
> processing on significantly more data.