On 5/12/14, 11:05 PM, Dmitry Stogov wrote:
> Even in this 64-bit world, I would suggest to try 32-bit PHP. In most
> cases it shows better performance.
> X32 ABI would be ideal, but it's not widely supported yet.
>
> Anyway, PIC doesn't make significant slowdown on x86_64, because of
> additional CPU registers and special PIC support.
>
> We tried GOTO executor and, of course, it's faster.
> Actually, after all the optimizations, instruction dispatch overhead
> became more and more significant,
> so we will have to think about it.
But I don't think people are going to be building PHP 32-bit if the rest
of their system is all 64-bit. And PIC vs. non-PIC isn't really an issue
anymore as I suspected. We should be optimizing for 64-bit. By the time
phpng hits the world there will be even fewer 32-bit deploys out there.
-Rasmus
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