[wp-hackers] WP-Cache vs. eAccelerator vs. Memcache vs. ... (Yeah, another server opt. discussion)

[Stephane Daury]

Hey V,

The core asset of memcache are that it's language agnostic and  
distributed in nature. So it will really pay off if you want to use  
it for all the (compatible) apps running on your server and/or if  
you're running a cluster of box that you can run the daemon on and  
share the load across. It will work fine on it's own, but you lose  
the distributed advantage if you run it on only one machine (load  
balancing and fault tolerance). Kinda using a Ferrari to go grocery  
shopping: it works, but is it really appropriate?

On the other hand, eAccelerator is PHP-only, but has the advantage of  
handling both opcode and caching, which is another layer of  
performance tuning.

In the cluster environment I was running at McGill (last day  
yesterday), we pretty much ran both: memcache for caching, because we  
had multiple web nodes, and eAccelerator, but purely for the opcode  
advantage of the latter. They don't conflict (but the WP plugins  
using either probably will).

Nothing scientific in my answer (don't have benchmark numbers to give  
you), but I think in your context, I'd probably focus on  
eAccelerator, at least for now.

Stephane




On Oct 27, 2007, at 10:53, Viper007Bond wrote:

> I've just upgraded my server and figured it'd be a good time to re- 
> examine
> the big WordPress install on the server and it's optimization. The  
> install
> gets ~40k hits on a slow day and over 100k on more popular ones  
> (which is
> 1-3 days of the week).
>
> For years now, I've just used WP-Cache. It worked fine and my buddy  
> who
> manages our server for me even enabled caching WP-Cache's folder to  
> memory
> (I think, server configs obviously aren't really my thing). But after
> discovering the eAccelerator and Memcache plugins out there that  
> make direct
> usage of the modules, I figured that'd be more efficient than  
> caching to
> static files via WP-Cache.
>
> However, I'm a bit clueless here and don't know which to use as my  
> buddy
> says both eAccelerator and Memcache are installed. I'd ask him, but he
> doesn't know WordPress at all really.
>
> phpinfo() -> http://titan.finalgear.com/php.php
>
> Server specs can be listed if wanted as to determine which would be  
> best for
> the hardware.
>
> So, any thoughts on the matter? And yeah, I did poke around the Google
> Groups archive some, but didn't come up with anything of much use.  
> Then
> again, I'm not a search master.
>
> -- 
> Viper007Bond | http://www.viper007bond.com/
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