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Date: Thu, 14 Feb 2019 01:02:42 +0100
Message-ID: <CADqioP1brsToR0fr5Yts20FMzC9rzTDzcGwSx6drA3aUfYgn6A@mail.gmail.com>
To: Bruce Weirdan <weirdan@gmail.com>
Cc: Dmitry Stogov <dmitry@zend.com>, Nikita Popov <nikita.ppv@gmail.com>, 
	PHP internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary="0000000000003e18b90581cf624d"
Subject: Re: [PHP-DEV] [RFC] JIT
From: gen.work@gmail.com (Eugene Leonovich)

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On Tue, Feb 5, 2019 at 6:06 PM Bruce Weirdan <weirdan@gmail.com> wrote:

> On Tue, Feb 5, 2019 at 8:38 AM Dmitry Stogov <dmitry@zend.com> wrote:
> > > PHP+optimizer (-dopcache.jit_buffer_size=0):  32.29s  (100%)
> > > PHP+optimizer+JIT (-dopcache.jit_buffer_size=50000000): 30.72s (95.1%)
> > > PHP+optimizer+minimalJIT (-dopcache.jit_buffer_size=50000000
> > > -dopcache.jit=1201): 29.95s (92.7%)
> >
> > It may be interesting to try -dopcache.jit=1235. It should JIT only hot
> > functions and requires some warm-up.
>
> For this use case 1201 was the fastest of all the options I tried
> (including 1235).
>
> --
> PHP Internals - PHP Runtime Development Mailing List
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>


Here are my results of benchmarking rybakit/msgpack.php:

bench.php, w/o jit:
    Total     9.8220     4.3121

bench.php, opcache.jit=1235 opcache.jit_buffer_size=256M:
    Total     8.7255     3.3350

bench2.php, w/o jit:
    pure msgpack: 2.2818 sec
    pure msgpack packed: 2.1717 sec

bench2.php, opcache.jit=1235 opcache.jit_buffer_size=256M:
    pure msgpack: 1.5221 sec
    pure msgpack packed: 1.4739 sec

Details: https://gist.github.com/rybakit/bb551f962b706a9e08c995cf5ed9762f

-- 
Thank you and best regards,
Eugene Leonovich

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