xdebug and webgrind

xdebug.ini

zend_extension=/usr/lib/php5/20090626+lfs/xdebug.so

;Uncomment the following to enable xdebug. Check phpinfo always to see loaded modules and proper conf
;xdebug.profiler_enable = 0 
;xdebug.profiler_enable_trigger = 1
;xdebug.remote_enable = 0
;xdebug.auto_trace = 0
;xdebug.profiler_output_dir = /tmp
;xdebug.collect_params = 4
;xdebug.trace_output_dir = /tmp
;xdebug.profiler_output_name = cachegrind.%R.%p
;xdebug.trace_output_name = trace.%R.%p

 

Make sure tmp or whatever output dirs are writable by webgrind

trigger means you can trigger xdebug profile by adding a param XDEBUG_PROFILE=1