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To: Dmitry Stogov <dmitry@zend.com>
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Thread-Topic: [PHP-DEV] HYBRID VM
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Date: Wed, 10 May 2017 06:21:21 +0000
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Subject: Re: [PHP-DEV] HYBRID VM
From: andre.romcke@ez.no (=?iso-8859-1?Q?Andr=E9_R=F8mcke?=)



> On 5 May 2017, at 22:06, Dmitry Stogov <dmitry@zend.com> wrote:
>=20
> It provides comparabele improvement on smal benchmarks, without degradati=
on on real apps.
> It can be compiled in reasonale time (GOTO requres significant time anda =
lot of memory).
> Finally HYBRID fallbak to CALL if compiler doesn't provide necessary exte=
nsions.

While at it how does this compare to jit branch?


>=20
> Thanks. Dmitry.
>=20
> On May 5, 2017 10:26 PM, Matt Wilmas <php_lists@realplain.com> wrote:
> Hi Dmitry,
>=20
> ----- Original Message -----
> From: "Dmitry Stogov"
> Sent: Wednesday, May 03, 2017
>=20
>> Hi,
>>=20
>>=20
>> I propose a new VM instruction dispatch technique, that provides great
>> speed up on small benchmarks (1.5 times on bench.php)
>=20
> Interesting. :-) How does this compare to pure GOTO dispatch...?
>=20
>> Please review https://github.com/php/php-src/pull/2507
>>=20
>> Take into account, that HYBRID VM is not enabled by default and VM has t=
o
>> be regenerated by "php zend_vm_gen.php --with-vm-kind=3DHYBRID"
>>=20
>>=20
>> It doesn't work with phpdbg, out of the box, and may make some troubles =
to
>> xdebug and other system extensions.
>>=20
>>=20
>> I'm going to commit this into master after review and then rise question
>> about enabling it by default in PHP-7.2.
>>=20
>>=20
>> Thanks. Dmitry.
>=20
> - Matt
>=20
>=20