Mine

<VirtualHost *:80>
DocumentRoot "/var/www/localhost/htdocs/projecta/www"
ServerName www.projecta.com
ServerAlias projecta
DirectoryIndex index.php

    <Directory "/var/www/localhost/htdocs/projecta/www">

        #
        # Possible values for the Options directive are "None", "All",
        # or any combination of:
        #   Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews
        #
        # Note that "MultiViews" must be named *explicitly* --- "Options All"
        # doesn't give it to you.
        #
        # The Options directive is both complicated and important.  Please see
        # http://httpd.apache.org/docs-2.0/mod/core.html#options
        # for more information.
        #
        Options Indexes FollowSymLinks

        #
        # AllowOverride controls what directives may be placed in .htaccess files.
        # It can be "All", "None", or any combination of the keywords:
        #   Options FileInfo AuthConfig Limit
        #
        AllowOverride None

        #
        # Controls who can get stuff from this server.
        #
        Order allow,deny
        Allow from all
    </Directory>
	
	<IfModule peruser.c>
		# this must match a Processor
		ServerEnvironment apache apache
		
		# these are optional - defaults to the values specified above
		MinSpareProcessors 4
		MaxProcessors 20
	</IfModule>

</VirtualHost>