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Date: Wed, 14 May 2014 11:01:23 +0400
Message-ID: <CA+9eiLvKQBgY6RMmQfNWJCJ+JNL3RsHrr-yP7nJgEXJsnB76hw@mail.gmail.com>
To: Pierre Joye <pierre.php@gmail.com>
Cc: Anatol Belski <anatol.php@belski.net>, PHP Internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=047d7b5d84ef91280204f956bf29
Subject: Re: [PHP-DEV] [VOTE] [RFC] 64 bit platform improvements for string
 length and integer
From: dmitry@zend.com (Dmitry Stogov)

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How can you reduce memory overhead if you start using 64-bit number for
class names and other entities?
If you have been developing this patch for months, why didn't you make it
already?
I'll tell you - because it's impossible.

Thanks. Dmitry.


On Wed, May 14, 2014 at 10:27 AM, Pierre Joye <pierre.php@gmail.com> wrote:

> hi,
>
> On Wed, May 14, 2014 at 7:57 AM, Dmitry Stogov <dmitry@zend.com> wrote:
> > Pierre,
> >
> > you developed a patch that will negatively affect every PHP application,
> > just to use "modern" types...
> > it's completely not necessary step for 64-bit support.
>
> It is amazing that we have to argue about that in 2014.
>
> Again, it is not only about about just using it but to finally have a
> safe and clean 64bit implementation. Almost every other project did
> that years ago, recommendation from various compilers developers,
> security teams, etc. do recommend to implement 64bit support this way.
> We had issues because of the lack of usage of this well known
> standard. And now it is told that it is useless? I cannot agree with
> this statement, sorry.
>
> Now, about the numbers, which are based on a prototype, there are
> rooms for more improvements, we both know that. As our numbers show,
> based on 5.6 and 5.6+patch, the actual impact is much smaller. And
> this is without digging deeper or without looking at what would be
> possible when both phpng and this patch would be merged and improved
> together. We are smart people and good developers, and we both have
> very good contacts to compilers expert. We can reduce the impact even
> more and improve the phpng optimization as well.
>
> However, reducing the 64bit support to "only about allowing large
> string", only to 64bit integer for long or "only about using modern
> types" is wrong, and we again both know that.
>
>
> Cheers,
> Pierre
>
> @pierrejoye | http://www.libgd.org
>

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