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Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Reinis Rozitis
June 15, 2010 03:16PM
> I read somewhere that 2 PHP processes do not share APC cache. So if I
> have 10 PHP_FCGI_CHILDREN - that means 10 times cache size.

That could be true if the php processes are spawned seperatly (by webserver)
each time a client request comes in - which is slow as hell (and somewhat
mimics the apache forking mechanism).

The preferred way (especially for high concurrency) is to spawn the php as
permanent process and the webserver (nginx) talks to it through fastcgi (
http://wiki.nginx.org/NginxHttpFcgiModule ) - (you just provide ip:port -
which gives you also the ability if needed to use multiple boxes) that way
all the php processes have the same APC opcode cache / shared memory (and
there is no need to recompile script each time a new child is spawned). Not
to mention other benefits like persistant connections (to memcache / db /
etc) which aren't killed each time a request finishes but reused on next.

spawn-fcgi was kinda early way to do this (came from lighttpd) but now the
inbuilt FPM sapi has much more control and options (like to kill processes
which run for too long / monitor/backtrace the code) to miss the opportunity
to try it out.

rr


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Subject Author Posted

Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

rahul286 June 15, 2010 11:39AM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Reinis Rozitis June 15, 2010 02:08PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

rahul286 June 15, 2010 02:18PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

mike June 15, 2010 02:22PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

rahul286 June 15, 2010 03:00PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Reinis Rozitis June 15, 2010 03:26PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Jérôme Loyet June 15, 2010 03:42PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Rahul Bansal June 15, 2010 04:02PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Jérôme Loyet June 15, 2010 04:10PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

rahul286 June 15, 2010 04:32PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Piotr Karbowski June 15, 2010 04:36PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Jérôme Loyet June 15, 2010 04:38PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

rahul286 June 15, 2010 04:52PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Piotr Karbowski June 15, 2010 05:02PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

rahul286 June 15, 2010 05:17PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

rahul286 June 15, 2010 05:28PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Piotr Karbowski June 15, 2010 05:34PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Reinis Rozitis June 15, 2010 05:10PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Jérôme Loyet June 15, 2010 05:18PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Reinis Rozitis June 15, 2010 05:46PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Jérôme Loyet June 15, 2010 05:52PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

rahul286 June 16, 2010 08:20AM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

rahul286 June 15, 2010 05:46PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

rahul286 June 15, 2010 05:50PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

rahul286 June 26, 2010 07:29PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

ericdeko411 June 26, 2010 09:45PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

rahul286 June 27, 2010 10:04AM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

rahul286 June 15, 2010 03:12PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Reinis Rozitis June 15, 2010 03:16PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

rahul286 June 15, 2010 03:42PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

mike June 15, 2010 04:02PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

rahul286 June 15, 2010 04:12PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

speedway June 17, 2010 10:38PM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Jan Bujk September 09, 2011 08:36AM

Re: Optimizing worker_processes, worker_connections & PHP_FCGI_CHILDREN - Any Good Tutorial?

Reinis Rozitis September 09, 2011 09:40AM



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