Memory_limit setting & shared host servers

Revo Server requirements :

PHP Compatibility

* 5.1.1 and above (excluding 5.1.6)
* Required extensions:
o mod_rewrite (for friendly URLs/.htaccess)
o GD lib (required for captcha and file browser)
o PDO, specifically pdo_mysql (for xPDO)
o SimpleXML
o mcrypt + mhash
* Safe_mode off
* Register_globals off
* PHP memory_limit 24MB or more, depending on your server

Troubleshooting Installation

"I clicked install and got a blank white screen!"

Make sure your ’memory_limit’ setting in php.ini is set to at least 64M. For slower servers, you might need to up to 128M.

I understand the reasons to increase the memory_limit of Php scripts, but lot of web hosting providers provide shared servers configured with 32M as memory_limit, without possibilities to change the defaut configuration (php.init). And lot of non-profit associations haven’t the budget for non-shared server offers for hosting a web site.
I know that it is possible to change this limit by changing the .htaccess file with the cmd line: php_value memory_limit 64M
or by adding ini_set(’memory_limit’,’64M’); at the beginning of the Php script.

But for lot of web hosting offers this variable (php_value memory_limit) can’t be changed, by .htaccess or by the ini_set commande.
So, do you plan some optimisations to reduce the current limit ? is it possible ? And what will be the correct upper value ? 32, 64M ?

Otherwise,this limit could become a bridle to the deployment of Revo.

From the announcement about Beta 4 (http://modxcms.com/about/blog/jgilmore/modx-revolution-beta-4-now-out.html):

Vast speed improvements to installer - now runs with memory_limit at least 24M

It seems that with Beta 4 you should be okay.

Quote from: cariboo at Nov 13, 2009, 04:41 AM

But for lot of web hosting offers this variable (php_value memory_limit) can’t be changed, by .htaccess or by the ini_set commande.
So, do you plan some optimisations to reduce the current limit ? is it possible ? And what will be the correct upper value ? 32, 64M ?
Otherwise,this limit could become a bridle to the deployment of Revo.

Beta4 reduced that limit to 24M. beta5 pushes the PHP requirement to PHP 5.1.1+. We’ll be doing a lot of optimization improvements post-beta5, in the RC stages. Don’t worry.