this is awesome, i'll give it a try with symfony too! On Tue, May 26, 2015 at 5:24 PM, Rasmus Lerdorf <ras...@lerdorf.com> wrote:
> On 05/26/2015 07:33 AM, Dmitry Stogov wrote: > > Commit: 7dac4d449f72d7eb029aa1a8ee87aaf38e17e1c5 > > Author: Dmitry Stogov <dmi...@zend.com> Tue, 26 May 2015 > 17:33:25 +0300 > > Parents: ca31711625095c2d6e308d7f0fc9d371ad0934d4 > > Branches: master > > > > Link: > http://git.php.net/?p=php-src.git;a=commitdiff;h=7dac4d449f72d7eb029aa1a8ee87aaf38e17e1c5 > > > > Log: > > Add targets to simplify building PHP with FDO (Feedback Directed > Optimisation) > > PHP should be built with the folowing steps: > > > > make clean > > make -j4 prof-gen > > ; now php should be trained with some scripts > > ; for example `sapi/cgi/php -T 1000 /var/www/http/wordpress/index.php > > /dev/null` > > make prof-clean > > make -j4 prof-use > > > > The "properly" trained build may give up to 10% real performance boost! > > "Improprly" trained PHP might be even slower. > > Whoa, really 10%? I know there is AutoFDO coming in gcc 5.1 and I didn't > think this was really practical until then. Perhaps it is. I wonder if > this will spur php-wordpress, php-drupal and php-mediawiki tuned builds? > > -Rasmus > >
