Comments on: WP Super Cache vs DB Cache Plugin

By: Steve Clay

Steve Clay — Thu, 23 Apr 2009 02:58:45 +0000

Just to be clear, with WP-Super-Cache, most requests are served directly by Apache from pre-rendered and pre-gzipped files, so 0 queries, 0 seconds spent in PHP = extremely fast w/ almost no CPU hit.

To notice the speed you must log out of your site because certain cookies will cause the URL rewriting to bail and the PHP version will be called. You also can’t look at stats embedded in the HTML to tell the story because that will be cached. Test with ab and you’ll see a dramatic boost in reqs/sec when WP-Super-Cache is set up correctly.

Yes, there’s room for improvement within PHP, so DB-Cache has it’s place (if it’s well-written–I’ve not tried it), but Super Cache works on another level, similar to how a reverse proxy cache works.

Just a fan.

By: Madmouse Blog

Madmouse Blog — Wed, 21 Jan 2009 14:40:07 +0000

I have been thinking of such a plugin but since I have a dedicated server I have been putting it off.
Now, that I am changing providers and going back to a VM, I need to look at this. The VM is a temp thing until I get the new server configured and shipped to the new hosting provider.

So far, my dedicated server never reaches more than a 3% load on the server and the majority of the time it is less than 1%.

I think I will do some testing this week to see how much these plugins speed things up.

By: Turnip

Turnip — Tue, 13 Jan 2009 23:53:45 +0000

I’m not sure why the load would shoot up, unless you had two caching plugins running simultaneously? How was your page generation time and number of queries? Did that go up or down with the plugin activated? One thing I noticed about the plugin is that you have to go to the options and choose “disable” and save that setting to truly disable it. The author seems active in developing this plugin, so I expect frequent upgrades until all issues are resolved.

By: Eivind M.

Eivind M. — Tue, 13 Jan 2009 20:51:51 +0000

I tried the DB Cache plugin, but my page load time increased from 1.2 sec to 4-5 sec. The server average load also 5-doubled (see graphs and some further comments here:
http://www.marienblogg.no/2009/01/13/tester-cache-plugin/)

I’m curious as to whether I’m doing anything wrong, or if the plugin is braking with my blogg in some way..?