search

cloudsidedev / appside

Multitenant environment automation.
http://cloudside.ch
GNU Affero General Public License v3.0
38 stars 7 forks source link

Enable mod_pagespeed #52

Closed swissspidy closed 10 months ago

swissspidy commented 7 years ago

In playbooks/roles/web/tasks/main.yml, mod_pagespeed is currently commented out.

Leveraging some filters of this Apache module would be very beneficial for overall performance of the websites running on Appflow. mod_pagespeed has filters to minimize request overhead, minimize payload size, and even filters to improve rendering time in the browser.

grappler commented 7 years ago

Are you sure mod_pagespeed works with memcached?

swissspidy commented 7 years ago

@grappler Why not?

Memcached is an object cache that will be used by WordPress to cache stuff. WordPress reads from the object cache and the database and returns some HTML. mod_pagespeed then optimizes all the things (e.g. minifies HTML) and sends it to the browser. Along the way, Varnish caches the data.

I'd rather have said using mod_pagespeed and Varnish together is troublesome, but from what I can see it should work. Perhaps ModPagespeedModifyCachingHeaders is needed.

If the setup is incompatible with Varnish, we should look into further tweaking Varnish, Apache and HAProxy to improve performance.

ivomarino commented 7 years ago

@swissspidy can be enabled, we just need to be sure to install latest version. The thing with mod_pagespeed is that it must be really carefully configured as you might know. There are many options and tunings.