Benchmarking PHP page load times

Question

How could I measure the time taken to load a page (with various different PHP statements)?

Somewhat like the stats available here - http://talks.php.net/show/drupal08/24

Answer 1

Try https://github.com/fotuzlab/appgati

It allows to define steps in the code and reports time, memory usage, server load etc between two steps.

Something like:

    $appgati->Step('1');

    // Do some code ...

    $appgati->Step('2');

    $report = $appgati->Report('1', '2');
    print_r($report);

Sample output array:

Array
(
    [Clock time in seconds] => 1.9502429962158
    [Time taken in User Mode in seconds] => 0.632039
    [Time taken in System Mode in seconds] => 0.024001
    [Total time taken in Kernel in seconds] => 0.65604
    [Memory limit in MB] => 128
    [Memory usage in MB] => 18.237907409668
    [Peak memory usage in MB] => 19.579357147217
    [Average server load in last minute] => 0.47
    [Maximum resident shared size in KB] => 44900
    [Integral shared memory size] => 0
    [Integral unshared data size] => 0
    [Integral unshared stack size] => 
    [Number of page reclaims] => 12102
    [Number of page faults] => 6
    [Number of block input operations] => 192
    [Number of block output operations] => 
    [Number of messages sent] => 0
    [Number of messages received] => 0
    [Number of signals received] => 0
    [Number of voluntary context switches] => 606
    [Number of involuntary context switches] => 99
)