CPU Tick Hack

gistfile1.txt

<?php

/**
 * Place next to wp-blog-header.php. Visit this file to find the time suck.
 */
declare(ticks=1);
register_tick_function('ds_do_profile');

$ds_profile = array();
$ds_last_time = microtime(true);
function ds_do_profile() {
    global $ds_profile, $ds_last_time;
    $bt = debug_backtrace();
    if (count($bt) <= 1) {
        return ;
    }
    $frame = $bt[1];
    unset($bt);
    if ( $frame['file'] == '' ){
        $frame['file'] = 'muliple locations';
    }else{
        $frame['file'] = substr( $frame['file'], strlen( $_SERVER['DOCUMENT_ROOT']) );
    }
    $function = $frame['function'] . ' in ' . $frame['file'];
    if (!isset($ds_profile[$function])) {
        $ds_profile[$function] = 0;
    }
    $ds_profile[$function] += (microtime(true) - $ds_last_time);
    $ds_last_time = microtime(true);
}
function ds_show_profile() {
    global $ds_profile;
    arsort($ds_profile);
    trace($ds_profile); // DesktopServer's trace window
}
define('WP_USE_THEMES', true);

/** Loads the WordPress Environment and Template */
require('./wp-blog-header.php');
ds_show_profile();