[Server-devel] Squid tuning recommendations for OLPC SchoolServer tuning...

[Chris Martin]

I don't know which is the lightest.

However there are quiet a few groups looking at getting squid to run in
embedded platforms.  OpenWrt and the Debian Embedded projects.
I suspect that you will need to make a specific build with redundant
features disabled. - In particular disable the memory cache and rely on the
file-system cache

It just strikes me that if you already have Apache running - that adding
mod_proxy would have a limited overhead as you already have most of the
Apache code running for the HTTP server adding mod_proxy would not be a
significant extra overhead,  You can configure it to have no memory cache.

The downside is that I don't think that you can configure it to auto
preload/refresh the disk cache after-hours when the link is under utilised.
I think that you can do this with squid

However I think that there are other tools that would do this more
efficiently in conjunction with mod_proxy.

Over the weekend I will fire up a VM with 256Meg and see how well it goes

---------------------------------
Chris Martin
e:  chris at martin.name
m: +61(0)419812371
---------------------------------
-----Original Message-----
From: Martin Langhoff [mailto:martin.langhoff at gmail.com] 
Sent: Thursday, 25 September 2008 8:14 AM
To: Chris Martin
Cc: Mark Nottingham; XS Devel
Subject: Re: [Server-devel] Squid tuning recommendations for OLPC
SchoolServer tuning...

On Wed, Sep 24, 2008 at 11:25 PM, Chris Martin <chris at martin.name> wrote:
> Has any one considered using the proxy module in Apache HTTP server.
> You are already taking the hit of running a web server, - the proxy module
> just might give you enough features.
>
> Certainly you get Caching and Access Control

I have considered it, and it is my second option if I cannot tame
Squid :-) - apache2 is running, though with a few memory-heavy modules
so to run a proxy I have to start a second daemon anyway (to keep the
memory footprint under control).

Only ever played with apache as a reverse proxy many years ago -- I
have no idea how it fares as a general forward proxy, and whether it
is comparable with squid under the kind of constraints I have.

I do understand apache's memory model a whole lot better, but I am
willing to learn Squid and tweak a bit if it's better.

Within the constraints I have - do you have info/experience indicating
apache would fare better or same?

cheers,



m
-- 
 martin.langhoff at gmail.com
 martin at laptop.org -- School Server Architect
 - ask interesting questions
 - don't get distracted with shiny stuff - working code first
 - http://wiki.laptop.org/go/User:Martinlanghoff