How to find out which PHP script is the most "heavy" for CPU?

Question

PHP

Worth lighttpd + fastcgi + php.
I see that php creates a load on the CPU.
Maybe there is some stray in the form of a php extension or a module for lighttpd to find out which one?

Answer 1

Xdebug is a good profiler, give it a try.
To reduce the load, I advise you to use accelerators , I like Alternative PHP Cache .

Answer 2

Install Xdebug and configure it like this: View logs - CacheGrind ( WinCacheGrind , KCacheGrind )
...
xdebug.profiler_enable=1
xdebug.profiler_output_dir="d:\web\debug"
...

Answer 3

pinba IMHO the best of free

Answer 4

The simplest thing I see is the page generation time in the web server logs.