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

[Bob]

The nice thing about WP-Cache is that if the page is in cache, it doesn't 
even connect to the database.

Those of us running WP on shared servers are unlikely to be allowed to 
reserve RAM for either PHP opcodes or database objects.

Bob

----- Original Message ----- 
From: "Computer Guru" <computerguru at neosmart.net>
To: <wp-hackers at lists.automattic.com>
Sent: Sunday, October 28, 2007 12:15 PM
Subject: Re: [wp-hackers] WP-Cache vs. eAccelerator vs. Memcache vs. ... 
(Yeah,another server opt. discussion)


> What's more painful is how many people use it >.<
>
> WP's object caching model is inherintly much easier to use: you cache and
> object and you can delete that object from cache. Whereas WP-Cache caches
> the entire document as an HTML file, object cache caches objects in a 
> global
> "drawer" where you can call and delete whatever you want. Only what you 
> want
> cached gets cached in the first place, and its easy to nullify that cache 
> on
> a certain action.
>
> object-caching all DB references + an opcode caching engine gets you
> _almost_ the same performance as pure HTML (assuming WP actually uses 
> object
> cache for everything). Since WP-Cache isn't even pure HTML (it still has 
> to
> request a PHP file which is NOT opcode cached) and since HTML files reside
> on the disk (verses opcode caching and object caching where they're in the
> memory) you've got quite a bit of overhead.
>
> (Speaking from personal experience here, WP-Cache was enabled w/out any
> object cache or opcode caching engine and my site went down with a
> slashdotting. Removed WP-Cache, installed XCache + WP XCache plugin +
> "object cachified" my plugins and my site withstood the next slashdotting 
> :)
>
> The Big Question:
> Does anyone know if WP uses object caching throughout, or if there are
> functions in the core which still need to be "object cachified?" (made 
> aware
> of object caching and taking advantage of it if present)
>
> On 10/28/07, Ozh <ozh at planetozh.com> wrote:
>>
>> While searching how to make one of my plugin compatible with WP-Cache
>> I came across an interesting post on the same topic:
>> <http://elliottback.com/wp/archives/2005/07/12/getting-wp-cache-to-work/>
>>
>> Basically :
>> 1) rewrite all internal WP functions in your plugin to make it
>> completely WP independent
>> 2) include the plugin with the mclude token.
>>
>> I've awarded this the PITA Of The Year medal.
>>
>> On 10/28/07, Omry Yadan <omry at yadan.net> wrote:
>> > Indeed.
>> >
>> > I banged my head on wp-cache trying to get my stats plugin to work with
>> > it in a portable way, it's quite a pain.
>> >
>> >
>>
>> --
>> http://FrenchFragFactory.net ~ Daily Quake News
>> http://planetOzh.com ~ Blog and WordPress Stuff
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>
>
>
> -- 
> Computer Guru
> Director,
> NeoSmart Technologies
> http://neosmart.net/blog/
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