2010/4/6 滕路遥 <tly.phpf...@gmail.com>: > hi, > > We use PHP's Imagemagick extension to process images, and this would > consume a lot of memory under some circumstances. > However, the mainstream PHP's memory management is really weak, so a > huge amount of memory would be consumed under high server load. What's > worse, this even cause our server to crash frequently. > > So I suggest that if we could add a config option to PHP-FPM, so that > PHP-FPM could just kill a PHP process if it consumes too much memory > (say more than 256M). > This would prevent PHP from consuming a lot of memory which couldn't > be freed later. > > For example, assuming that this option is "exit_on_memory_exceeds", > and I set it to 256M. Also, I set PHP's "memory_limit" option to > 1024M. > I would expect PHP-FPM to kill the PHP process which consumes more > than 256M memory, even though PHP could use up to 1024M memory. > We have discussed this idea with the author of PHP-FPM,url is > http://groups.google.com/group/highload-php-en/browse_thread/thread/1882a3b2257dcc5c/ea73892cea011541?lnk=gst&q=gaochunhui#ea73892cea011541 > , and now I have reach my goal by patching the source code of PHP-FPM. So > we can edit the php-fpm.conf and add one item such as "<value > name="term_on_memory_limit">3145728</value>" in the "global_options" section, > when PHP's memory beyond this limit,child process will exit. > > mypatch.diff > http://docs.google.com/leaf?id=0B-ig5wUi7GTMZTUxYjg1ZTQtOGQ5Zi00N2Q1LTkxODYtYWQ4Y2FiMzhlOWM5&hl=en<%20http://docs.google.com/leaf?id=0B-ig5wUi7GTMZTUxYjg1ZTQtOGQ5Zi00N2Q1LTkxODYtYWQ4Y2FiMzhlOWM5&hl=en> > This patch is for > http://svn.php.net/repository/php/php-src/branches/PHP_5_3_FPM version: > 294187. >
thanks, I'll review the patch. But I don't have time right now. It's in my todo list. ++ Jerome -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
