[imp] Hardware request ( RAM ) of WebMail System

Matus UHLAR - fantomas uhlar at fantomas.sk
Fri Jan 5 00:44:39 PST 2007


> >>Citeren edwardspl at ita.org.mo:
> >>>How much mem does the imp + php + DB need ?

> >rzuidhof at zonnet.nl wrote:
> >>The MySQL DB hardly needs mem. 512 MB is usually enough. The memory
> >>need mostly depends on the number of Apache web server processes. If
> >>you have 200 concurrent connections that all require 40 MB you will
> >>need 8 GB. Better: two servers with 4GB. The latest Horde/IMP will
> >>also require quite some CPU, so two servers will be better. But if you
> >>have 1000 concurrent connections you can calculate what you will need.

> edwardspl at ita.org.mo wrote:
> >Do you means 512MB Ram is ok for the whole WebMail System ( Eg: imp +
> >php + DB ) generally ?

On 02.01.07 11:19, Richard Zuidhof wrote:
> No, 512 MB is for the DB only. Memory usage for IMP/PHP depends on the 
> number of web server processes. But if you use Apache 2.0 you can reduce 
> memory needs.

imp takes up much memory when displaying some messages, especially those
with big image attachments. for processing 10MB attachments, PHP may take
even 60 MB of RAM, and with images it's even worse (they are often
decompressed in server's memory). If you plan to have many concurrent users,
you may need much more of RAM.
-- 
Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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