Re: About optimization
| From: | Sebastian Bergmann | Date: | Wed, 13 Jan 2010 11:33:44 +0000 |
| Subject: | Re: About optimization | ||
| References: | 1 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-46680@lists.php.net to get a copy of this message | ||
Am 13.01.2010 12:18, schrieb mathieu.suen:
> I would like to know why the opcode is not optimized.
Because any optimization, even very simple ones, impose a performance
penalty in the default execution model of PHP which does not use a
bytecode cache.
Only when the bytecode is not regenerated for each execution does it
make sense to invest for time for the then one-time compilation.
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Sebastian Bergmann Co-Founder and Principal Consultant
http://sebastian-bergmann.de/
http://thePHP.cc/