instead of making another optimizer, why not pull in something like
php-accelerator? in other words, i'm all for a good optimizer, but why
spend time starting something from scratch when we could spend the same
effort on perfecting a product that's already pretty close to what we
might
want?
dave
-----Original Message-----
From: Manuel Lemos [mailto:mlemos@xxxxxxx]
Sent: Wednesday, October 30, 2002 3:56 PM
To: pear-dev@xxxxxxxxxxxxx
Subject: [PEAR-DEV] Re: optiizer extension import?
Hello,
On 10/30/2002 08:10 PM, George Schlossnagle wrote:
I'd like to import an 'optimizer' zend_extension that does peephole
optimizations on code. It will be PHP Group licensed.
Votes?
All right! +1 of course.
Anyway, this is the kind of extension that may not be useful when used
alone without caching the results to disk or shared memory.
The reason is that when you optimize a chunk of code, you may end up not
running enough of it to compensate for the time that you took optimizing
the code. This is particularly true when you use generic classes that
are meant for several purposes but you end up not using it in the same
script for all it can do.
This was the conclusion that I reached when I started using Zend
Optimizer with high levels of optimization that take longer to run.
Instead of speeding up code, it was retarding it and causing an huge
load on the server.
It turned out that using a cache like APC was much better than using
Zend Optimizer alone because caching the compiler results got over most
of the compilation time overhead. Since APC could not run with Zend
Optimizer, I gave up Zend Optimizer.
This turns out to become a good selling point for Zend Cache because the
difference between using Zend Optimizer and then using Zend Cache even
without Zend Optimizer is even more noticeable then using nothing at all
and then any cache (Zend Cache, APC, whatever).
Zend Optimizer is free but it is like a "greek gift": it is good but
often is worse unless you use Zend Cache too.
Anyway, I think your optimizer will always be a good thing with either
APC or bcompiler. Great job!
--
Regards,
Manuel Lemos
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