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I currently have httpd in prefork mode with mod_php and apc.

I host multiple wordpress installs on my server but with w3-total-cache i find that my apc cache is caching multiple versions of the same files wp-includes.

As all my sites are running the latest version of wordpress and all the wp-includes are identical, it would be handy for apc to only cache 1 version of the files in wp-includes and use it for all sites as this would save a lot of wasted space.

Is there an opcode cache out there that does this? Can i tell wordpress to use the same backend? (i don't want to use multisite on wordpress itself as these sites are completely independent of each other.)

JamesSmythes
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  • Multi-site WordPress keeps sites completely independent other than the code base and the users table. From the perspective of anyone other than full site admins there won't be a difference. – ceejayoz Nov 16 '11 at 18:26
  • but i can't host the sites on different ip addresses on my server. and it puts all the posts etc in the same database. i'd rather not have that. – JamesSmythes Nov 16 '11 at 18:59
  • You can host them on different IPs using named virtual hosts, and it is entirely possible to put them in different databases (using [HyperDB](http://codex.wordpress.org/HyperDB)). – ceejayoz Nov 16 '11 at 19:09
  • that would involve moving 20+ accounts on cpanel into 1 which would be a crazy amount of work. – JamesSmythes Nov 16 '11 at 19:12

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