I am searching for an element that will permit me to determine a present status of php scripts running and showing me just how much memory/io/cpu they're consuming at this time.
I've got a wordpress website that includes a lot of plug ins set up in it, and I am presently getting performance problems that I suspect are based on one of the numerous plug ins.
I am searching for a fast method to check which script/wordpress plugin is consuming probably the most IO/memory/cpu.
I am afraid there's no such command or utility that actually works 'natively' within PHP.
Because you have labeled Apache, please take a look to Apache's Status module: http://httpd.apache.org/docs/2.0/mod/mod_status.html
The output goes like http://www.apache.org/server-status
This obviously requires you to definitely have root use of your webserver, however i accept is as true shows useful informations. This could demonstrate, which Web addresses take most CPU time. To research further you may need a profiler like (pointed out) Xdebug.