On Mon, Feb 12, 2007, PLI wrote:
> Trying to build a small apache with mod_ssl and mod_php on
> sparc64-solaris2.9 (512 Mo RAM), i found the following strange result
> and i don't understand why ?
>
> The first build:
> openssl-0.9.8d: (with default option)
> apache-1.3.37-20070208:
> with_mod_ssl = yes
> with_mod_php = yes
> and with_mod_php*option = no
>
> After successfully build and install, show process size give the
> following result (prstat -s size)
>
> apache = 72M Size (not RSS)
>
> The second build "with_mod_ssl = no", and after install and running,
> give the following result:
>
> apache = 5M Size.
>
> The difference is not so big under linux.
>
> How can we explain this difference on sparc64-solaris2.9 ?
> And perhaps how can i get apache thinner ;) ?
Well, you said "not RSS" above, but only the RSS is what really counts
here! The _virtual_ process size you can more or less completely ignore.
Here the different Unix flavors always differ dramatically because of
the way shared memory areas are counted, etc. So, as long as the RSS
of your processes is about 10MB, everything is just fine. BTW, as a
comparison: experience shows that a full-sized Apache usually grows up
to 50MB in RSS after some processing time. For a small Apache I expect
about 10MB RSS. The only thing you should keep in mind when comparing
RSS values is that your system should be not already swapping as this
fudges your comparison, of course. ;-)
Ralf S. Engelschall
[EMAIL PROTECTED]
www.engelschall.com
______________________________________________________________________
OpenPKG http://openpkg.org
Developer Communication List openpkg-dev@openpkg.org
