<br>I've been playing recently with some firefox extensions for web developers:<br><br>FireBug: <a href="https://addons.mozilla.org/es-ES/firefox/addon/1843">https://addons.mozilla.org/es-ES/firefox/addon/1843</a><br>PageSpeed: <a href="http://code.google.com/intl/es-ES/speed/page-speed/index.html">http://code.google.com/intl/es-ES/speed/page-speed/index.html</a><br>
YSlow: <a href="http://developer.yahoo.com/yslow/">http://developer.yahoo.com/yslow/</a><br clear="all"><br>and found that enabling certain options in the koha's apache VirtualHosts configuration would improve a lot koha's performance in bandwidth use. Only the opac startup page bandwidht usage goes from 368.5K to 118.3K.<br>
<br><br>Enable http compression using mod_deflate<br>---------------------------------------------------------------<br><br>Document this command for enabling this in Debian/Ubuntu<br><br># a2enmod deflate<br><br>and add this lines to koha-http.conf in both VirtualHost definitions<br>
<br> SetOutputFilter DEFLATE<br> SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip<br><br>I specify not to apply useless compression to compresed images. Further options could be used. See <a href="http://httpd.apache.org/docs/2.0/mod/mod_deflate.html">http://httpd.apache.org/docs/2.0/mod/mod_deflate.html</a><br>
<br><br>Enable better caching features by setting explicit expiration far in the future for static content using mod_deflate<br>----------------------------------------------------------------------------------------------------------------------------------------------------------------<br>
<br>Document this command for enabling this in Debian/Ubuntu<br>
<br># a2enmod expires<br><br>and add this lines to koha-http.conf in both VirtualHost definitions<br><br> ExpiresActive On<br>
ExpiresDefault "modification plus 1 year"<br>
<br>as mod_expires only applies to files in the filesystem it is safe to rely on modification date. This could be fine-tuned, for example on a per filetype basis (see <a href="http://httpd.apache.org/docs/2.0/mod/mod_expires.html">http://httpd.apache.org/docs/2.0/mod/mod_expires.html</a>).<br>
<br>-----<br><br>PageSpeed in particular offers some recommendation on image sizes and provides an optimal image file for substitution. This could be analised.<br><br>To+.<br><br>-- <br>Aparición con vida de Jorge Julio López.<br>