Re: Zend Loader performance

by Philip G :: Rate this Message:

There's arguments on both sides of the fence on this one. I personally like having organization in my code, which is why I like the multi-file method and we can just use APC to speed up code execution. However, not everybody has that option, which runs into a problem. On top of that, you start relying on your cache, not your code efficiency, for speedy code which, imo, is very, very bad.

Now, as far as Zend_Loader, don't use it. It completely negates the ability to use APC. Zend_Loader allows dynamic loading of classes which just happens to prevent APC's ability to determine which files should be cached. Always use require/include for your classes, that way you can use APC and its features. Zend_Loader is convenient, but it's not worth the overhead it gives. The only situations I use Zend_Loader is during factor class creations. That's it.

I like the compile() method you pointed out, Lukasz, but I'm not quite completely sold on it yet. I can see the benefits, but there are questions to ask on both sides of that, too

Philip

On Sun, May 11, 2008 at 8:36 AM, Karol Grecki <kgrecki@...> wrote:

Did you test it with opcode cache enabled?

It's true that lots of files are included and compiled, but that's what you
have APC for.

Karol

Łukasz Bandzarewicz wrote:
>
> Hi all!
>
> During simple profiling I noticed that Zend_Loader could consume 20-25% of
> execution time.
> It's quite obvious, because ZF has to load lots of files, but..
> have you ever wondering about compile ZF code? Something similar to
> phpDoctrine's compile method
> (http://www.phpdoctrine.org/documentation/manual/0_11?one-page#improving-performance)?
>
> The compile method makes single file of most used components. Additionally
> it could remove comments and white spaces to reduce size of compiled file.
> It could reduce slow disk operations (check if file exists, load file,
> etc.) and increase performance.
>
> What you think, is this feasible?
>
>

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