Travers Carter a écrit : > On Thu, 20 Aug 2009 00:45:36 +0300, Noor > <mlist-fc...@orientalsensation.com> > wrote: > >> And while you're at it, I'll through in another question: How does >> eAccelerator/FastCGI manage the shared memory segments? According to >> eAccelerator's homepage, it'll share such segments when the spawning >> process is shared. In the case of FastCGI (mod_fcgid), *who* is the >> spawning process? And this spawning process, how many cgi-php >> processes it'll spawn? (which if I understand correctly, such cgi-php >> processes would share eAccelerator's cached scripts as they've got one >> "father"). >> >> > > As I understand it in FastCGI mode a php process will launch a number > of children equal to the value of the PHP_FCGI_CHILDREN environment > variable, I believe that this is the spawning process referred to in > the eAccelerator docs, meaning that the shared memory segment would > be shared by those PHP_FCGI_CHILDREN processes. > > But mod_fcgid (unlike mod_fastcgi) assumes that each process it starts > directly can only handle a single concurrent request so > PHP_FCGI_CHILDREN should be set to 0, meaning that no children will be > launched and the shared memory segment will only be used by a single > php process. > > PHP will shutdown the process after 500 request, so if you don't use PHP_FCGI_CHILDREN the opcode cache (eaccelerator/xcache/apc) will be lost. For this type of setup I generally set PHP_FCGI_CHILDREN to 1 and increase the "ProcessLifeTime" fastcgi parameter to 86400 seconds instead of 3600.
Olivier ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Mod-fcgid-users mailing list Mod-fcgid-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mod-fcgid-users
