How do a read a xdebug profile in webgrind?
The basic output lists all the different functions, methods, and included/required files.
Invocation Count: The number of times the function has been called
Total Self Cost: The total time it took to execute the raw php in this function (time taken to execute your other custom functions is excluded.)
Total Inclusive Cost: Total time, including any other functions called (PHP internal, or your functions)
What the different colours mean?
- Blue are PHP internal functions
- Green are your class methods
- Orange are procedural functions
- Grey is time taken to
include, orrequire.php files.
What the coloured bar means? Graphical display of breakdown of time for each type as above.
For the last ones, I assume you've clicked the arrow to open a particular function?
Calls: The functions/methods called in executing this function
Total Call Cost: The total time executing this function, when called from the parent function
Count: Number of times the parent calls the child.