On Fri, Jan 3, 2014 at 6:30 AM, Jamie Holly hovercrafter@earthlink.net wrote:
The high performance group on drupal.org is really good:
I'd post there, but its spam filter doesn't like me.
The most common recipe is APC for opcode caching, memcache for object caching and Drupal's database to cache the form table.
The Drupal 6 site I'm rescuing (and I've never used Drupal before, what a way to get started!) was failing before I came on the scene, and had response times like this after each of my tweaks (measured with ab -n 20 -c 1 repeated three times right on the same machine as the web server, and page caching disabled):
fix median response time for logged in session after fixing problem MaxClients=5 3300ms simple APC 3000ms mysql QC 2300ms
so I heartily recommend turning on APC and MySQL query caching based on my five minutes of experience with them.
Performance for anonymous users isn't too bad, thanks to 'moderate page caching'. I'd like to try block cache but it can't be enabled, presumably because Content Access is used. I'd never heard of views cache or panels cache, thanks.
I'm trying authcache now, but it doesn't seem to be helping; a tutorial there would be helpful, but I haven't found a good one yet. Any suggestions? - Dan