[imp] Mod_env and mod_setenvif

[Patrick Boutilier]

On 05/07/2009 05:59 PM, Michael Rubinsky wrote:
>
> Quoting lst_hoe02 at kwsoft.de:
>
>> Zitat von Michael Rubinsky <mrubinsk at horde.org>:
>>
>>>
>>> Quoting Matus UHLAR - fantomas <uhlar at fantomas.sk>:
>>>
>>>> On 11.04.09 18:08, Harry Rickards wrote:
>>>>> I'm trying to reduce the amount of memory Apache uses on my Debian
>>>>> stable/lenny VPS. The modules mod_env and mod_setenvif are currently
>>>>> enabled, and I wondered whether it's safe to disable them? All I use
>>>>> Apache for is Horde and Wordpress (and a few static HTML pages),
>>>>> and my
>>>>> Horde version is 3.3.3 and IMP 4.3.3.
>>>>
>>>> I'm afraid that when using horde, it's irelevant to tune apache/php
>>>> settings. It's horde what's eating most of memory.--
>>>
>>> That's not entirely true. Do you have any data to back that up?
>>>
>>> FWIW, I've found using Lighttpd instead of Apache a great solution
>>> for reducing memory usage. I've been using it exclusively for a few
>>> years now. There is a what I would call a tiny learning curve in
>>> initially setting it up, depending on how many custom rewrite rules
>>> you already have in place (as the syntax and abilities are not 1:1).
>>
>> Is there any documentation on using Lighttpd for Horde maybe with some
>> Performance Numbers etc.??
>> I once tried to use it but get stuck with some required PHP modules
>> and because lack of time :-(
>
>
> Using lighttpd with Horde doesn't require any extra or special PHP
> modules then using PHP with Apache does. The only difference is you need
> to run a fastcgi PHP instead of as a module (mod_php). I don't have any
> hard performance numbers personally, other then the fact that when I was
> hosting my personal Horde install in a Virtuozzo VPS with no swap space,
> Horde was just about unusable with the amount of memory available to my
> VPS. Switching to lighttpd allowed it to work without any issues running
> with 256MB for the entire server, which ran the whole stack (mySQL,
> Postfix, Dovecot, etc...).
>
> The syntax for rewrite rules are different, but over time, I've added
> most of the lighttpd style rules to Horde. If you have any specific
> questions, feel free to ask.
>
> There are lots of good HowTos on setting up php fast-cgi with lightty
> around the net, and the documentation on the lighttpd site is pretty good.
>
> For starters,
> http://redmine.lighttpd.net/wiki/lighttpd/TutorialLighttpdAndPHP

I just switched to nginx from Apache 1.3.41 and the load on the server 
went down noticeably and IMP responsiveness is much better. Have a look 
at this graph for some visual evidence. Switched to nginx early 
Wednesday morning.

http://support.ednet.ns.ca/images/dijon-load-week.png


>
>
> Thanks,
> mike
>
> --
> The Horde Project (www.horde.org)
> mrubinsk at horde.org
>
> "Time just hates me. That's why it made me an adult." - Josh Joplin
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