Re: nginx+php-fpm question

On Wed, Sep 15, 2010 at 11:21 AM, Rasmus Lerdorf <rasmus@lerdorf.com> wrote: > On 9/15/10 10:57 AM, J Ravi Menon wrote: >>  So my guess is, if we do php-fpm approach, we have to do all these >> cleanups manually?  Or are there simpler solutions or hook-ups that >> does it automatically at the end of the request cycle? > > No, fastcgi doesn't change this model at all.  You have the same > end-of-requests cleanups as with mod_php. > Ah good to know. >> 2) My other concern is the extra ipc overhead between >> nginx<---->php-fpm servers even on unix sockets. To me in theory >> apache+mod_php ( + apc with stat off) should be as efficient as you >> can get. Granted nginx might be more efficient in its socket mgmt >> (non-blocking event-driven i/o), but can it really outperform the >> apache approach given the issues in (1) are resolved? > > In theory that extra ipc should make the nginx case slower, true.  From > what I have been able to measure, that is rarely a factor though. > > You can take a look at this slide from a recent talk of mine: > >  http://talks.php.net/show/drupalconcph/11 > > That's testing a vanilla Drupal setup on Apache, PHP-FPM-nginx and > PHP-FPM-lighttpd.  The dashed lines show the latency, the solid lines > the requests/sec. A lot here will depend upon the typical payload size. If compression is done at the fcgi server end, I can see why it may not matter much. Thx, Ravi > > -Rasmus > >