I'm encountering a situation with WordPress 3.4.2 Multisite that seems peculiar to me, but figured I'd run it by more seasoned folks to see if my instincts are naive.
We're running Multisite with a few memory intensive options (Headway Themes, Press Permit, etc.) and are having issues that require us to increase the amount of memory available to WordPress beyond 256MB. I know that's a lot, but it's on a VPS hosting plan, so the capability to do this is there.
No problem, just add the following line to the wp-config.php, right?
Except WordPress still seems "stuck" at 256MB . . . as far as the symptoms I'm trying to eliminate and also using an internal function (i.e. Backup Buddy's server information tool) that reports back the amount of RAM available to PHP. I can successfully increase the memory limit in php.ini and that reports back the correct/corresponding amount of RAM when I use phpinfo outside of WordPress.
There's no statement in the .htaccess file that's locking the memory limit down either.
I know there was at one point an internal "hard limit" of 256M in WordPress . . . but my understanding is that no longer exists as of WordPress 3.2 or later. Is there, by chance, a hard memory limit within WordPress that "kicks in" when Multisite gets activated?