mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
4a5d9b03f8
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@39001 467b73ca-7a2a-4603-9d3b-597d59a354a9
253 lines
8.7 KiB
PHP
253 lines
8.7 KiB
PHP
<?php
|
|
/********************************************************************************\
|
|
* Copyright (C) Carl Taylor (cjtaylor@adepteo.com) *
|
|
* Copyright (C) Torben Nehmer (torben@nehmer.net) for Code Cleanup *
|
|
* *
|
|
* This program is free software; you can redistribute it and/or *
|
|
* modify it under the terms of the GNU General Public License *
|
|
* as published by the Free Software Foundation; either version 2 *
|
|
* of the License, or (at your option) any later version. *
|
|
* *
|
|
* This program is distributed in the hope that it will be useful, *
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
|
* GNU General Public License for more details. *
|
|
* *
|
|
* You should have received a copy of the GNU General Public License *
|
|
* along with this program; if not, write to the Free Software *
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
|
|
\********************************************************************************/
|
|
|
|
/// Enable multiple timers to aid profiling of performance over sections of code
|
|
class Profiler {
|
|
var $description;
|
|
var $startTime;
|
|
var $endTime;
|
|
var $initTime;
|
|
var $cur_timer;
|
|
var $stack;
|
|
var $trail;
|
|
var $trace;
|
|
var $count;
|
|
var $running;
|
|
|
|
protected static $inst;
|
|
|
|
/**
|
|
* Initialise the timer. with the current micro time
|
|
*/
|
|
function Profiler( $output_enabled=false, $trace_enabled=false)
|
|
{
|
|
$this->description = array();
|
|
$this->startTime = array();
|
|
$this->endTime = array();
|
|
$this->initTime = 0;
|
|
$this->cur_timer = "";
|
|
$this->stack = array();
|
|
$this->trail = "";
|
|
$this->trace = "";
|
|
$this->count = array();
|
|
$this->running = array();
|
|
$this->initTime = $this->getMicroTime();
|
|
$this->output_enabled = $output_enabled;
|
|
$this->trace_enabled = $trace_enabled;
|
|
$this->startTimer('unprofiled');
|
|
}
|
|
|
|
// Public Methods
|
|
|
|
static function init() {
|
|
if(!self::$inst) self::$inst = new Profiler(true,true);
|
|
}
|
|
|
|
static function mark($name, $level2 = "", $desc = "") {
|
|
if($level2 && $_GET['debug_profile'] > 1) $name .= " $level2";
|
|
|
|
if(!self::$inst) self::$inst = new Profiler(true,true);
|
|
|
|
self::$inst->startTimer($name, $desc);
|
|
}
|
|
static function unmark($name, $level2 = "", $desc = "") {
|
|
if($level2 && $_GET['debug_profile'] > 1) $name .= " $level2";
|
|
|
|
if(!self::$inst) self::$inst = new Profiler(true,true);
|
|
|
|
self::$inst->stopTimer($name, $desc);
|
|
}
|
|
static function show($showTrace = false) {
|
|
if(!self::$inst) self::$inst = new Profiler(true,true);
|
|
|
|
echo "<div onclick=\"this.style.display = 'none'\" style=\"position: absolute; z-index: 100000; top: 20px; left: 20px; background-color: white; padding: 20px; border: 1px #AAA solid\">";
|
|
echo "<p>(Click to close)</p>";
|
|
self::$inst->printTimers();
|
|
if($showTrace) self::$inst->printTrace();
|
|
echo "</div>";
|
|
}
|
|
|
|
/**
|
|
* Start an individual timer
|
|
* This will pause the running timer and place it on a stack.
|
|
* @param string $name name of the timer
|
|
* @param string optional $desc description of the timer
|
|
*/
|
|
function startTimer($name, $desc="" ){
|
|
$this->trace.="start $name\n";
|
|
$n=array_push( $this->stack, $this->cur_timer );
|
|
$this->__suspendTimer( $this->stack[$n-1] );
|
|
$this->startTime[$name] = $this->getMicroTime();
|
|
$this->cur_timer=$name;
|
|
$this->description[$name] = $desc;
|
|
if (!array_key_exists($name,$this->count))
|
|
$this->count[$name] = 1;
|
|
else
|
|
$this->count[$name]++;
|
|
}
|
|
|
|
/**
|
|
* Stop an individual timer
|
|
* Restart the timer that was running before this one
|
|
* @param string $name name of the timer
|
|
*/
|
|
function stopTimer($name){
|
|
$this->trace.="stop $name\n";
|
|
$this->endTime[$name] = $this->getMicroTime();
|
|
if (!array_key_exists($name, $this->running))
|
|
$this->running[$name] = $this->elapsedTime($name);
|
|
else
|
|
$this->running[$name] += $this->elapsedTime($name);
|
|
$this->cur_timer=array_pop($this->stack);
|
|
$this->__resumeTimer($this->cur_timer);
|
|
}
|
|
|
|
/**
|
|
* measure the elapsed time of a timer without stoping the timer if
|
|
* it is still running
|
|
*/
|
|
function elapsedTime($name){
|
|
// This shouldn't happen, but it does once.
|
|
if (!array_key_exists($name,$this->startTime))
|
|
return 0;
|
|
|
|
if(array_key_exists($name,$this->endTime)){
|
|
return ($this->endTime[$name] - $this->startTime[$name]);
|
|
} else {
|
|
$now=$this->getMicroTime();
|
|
return ($now - $this->startTime[$name]);
|
|
}
|
|
}//end start_time
|
|
|
|
/**
|
|
* Measure the elapsed time since the profile class was initialised
|
|
*
|
|
*/
|
|
function elapsedOverall(){
|
|
$oaTime = $this->getMicroTime() - $this->initTime;
|
|
return($oaTime);
|
|
}//end start_time
|
|
|
|
/**
|
|
* print out a log of all the timers that were registered
|
|
*
|
|
*/
|
|
function printTimers($enabled=false)
|
|
{
|
|
if($this->output_enabled||$enabled){
|
|
$TimedTotal = 0;
|
|
$tot_perc = 0;
|
|
ksort($this->description);
|
|
print("<pre>\n");
|
|
$oaTime = $this->getMicroTime() - $this->initTime;
|
|
echo"============================================================================\n";
|
|
echo " PROFILER OUTPUT\n";
|
|
echo"============================================================================\n";
|
|
print( "Calls Time Routine\n");
|
|
echo"-----------------------------------------------------------------------------\n";
|
|
while (list ($key, $val) = each ($this->description)) {
|
|
$t = $this->elapsedTime($key);
|
|
$total = $this->running[$key];
|
|
$count = $this->count[$key];
|
|
$TimedTotal += $total;
|
|
$perc = ($total/$oaTime)*100;
|
|
$tot_perc+=$perc;
|
|
// $perc=sprintf("%3.2f", $perc );
|
|
$lines[ sprintf( "%3d %3.4f ms (%3.2f %%) %s\n", $count, $total*1000, $perc, $key) ] = $total;
|
|
}
|
|
arsort($lines);
|
|
foreach($lines as $line => $total) {
|
|
echo $line;
|
|
}
|
|
|
|
echo "\n";
|
|
|
|
$missed=$oaTime-$TimedTotal;
|
|
$perc = ($missed/$oaTime)*100;
|
|
$tot_perc+=$perc;
|
|
// $perc=sprintf("%3.2f", $perc );
|
|
printf( " %3.4f ms (%3.2f %%) %s\n", $missed*1000,$perc, "Missed");
|
|
|
|
echo"============================================================================\n";
|
|
|
|
printf( " %3.4f ms (%3.2f %%) %s\n", $oaTime*1000,$tot_perc, "OVERALL TIME");
|
|
|
|
echo"============================================================================\n";
|
|
|
|
print("</pre>");
|
|
}
|
|
}
|
|
|
|
function printTrace( $enabled=false )
|
|
{
|
|
if($this->trace_enabled||$enabled){
|
|
print("<pre>");
|
|
print("Trace\n$this->trace\n\n");
|
|
print("</pre>");
|
|
}
|
|
}
|
|
|
|
/// Internal Use Only Functions
|
|
|
|
/**
|
|
* Get the current time as accuratly as possible
|
|
*
|
|
*/
|
|
function getMicroTime(){
|
|
$tmp=split(" ",microtime());
|
|
$rt=$tmp[0]+$tmp[1];
|
|
return $rt;
|
|
}
|
|
|
|
/**
|
|
* resume an individual timer
|
|
*
|
|
*/
|
|
function __resumeTimer($name){
|
|
$this->trace.="resume $name\n";
|
|
$this->startTime[$name] = $this->getMicroTime();
|
|
}
|
|
|
|
/**
|
|
* suspend an individual timer
|
|
*
|
|
*/
|
|
function __suspendTimer($name){
|
|
$this->trace.="suspend $name\n";
|
|
$this->endTime[$name] = $this->getMicroTime();
|
|
if (!array_key_exists($name, $this->running))
|
|
$this->running[$name] = $this->elapsedTime($name);
|
|
else
|
|
$this->running[$name] += $this->elapsedTime($name);
|
|
}
|
|
}
|
|
|
|
function profiler_start($name) {
|
|
if (array_key_exists("midcom_profiler",$GLOBALS))
|
|
$GLOBALS["midcom_profiler"]->startTimer ($name);
|
|
}
|
|
|
|
function profiler_stop($name) {
|
|
if (array_key_exists("midcom_profiler",$GLOBALS))
|
|
$GLOBALS["midcom_profiler"]->stopTimer ($name);
|
|
}
|
|
|
|
?>
|