PHP profiler

Re: PHP profiler

Here is a simple profiler I wrote. It uses a tick function to measure
the time expired between each PHP operation and debug_back_trac e() to
find out where it occurs. Kinda neat as you don't have to make much
modification. Just include it at the beginning of the script, then at
the end, call __profile__('ge t') to obtain the profile data--an
associative array of percentages keyed by function names.

profiler.php:
<?php

function __profiler__($c md = false) {
static $log, $last_time, $total;
list($usec, $sec) = explode(" ", microtime());
$now = (float) $usec + (float) $sec;
if($cmd) {
if($cmd == 'get') {
unregister_tick _function('__pr ofile__');
foreach($log as $function => $time) {
if($function != '__profile__') {
$by_function[$function] = round($time / $total * 100, 2);
}
}
arsort($by_func tion);
return $by_function;
}
else if($cmd == 'init') {
$last_time = $now;
return;
}
}
$delta = $now - $last_time;
$last_time = $now;
$trace = debug_backtrace ();
$caller = $trace[1]['function'];
@$log[$caller] += $delta;
$total += $delta;
}

__profiler__('i nit');
register_tick_f unction('__prof iler__');
declare(ticks=1 );

?>

Re: PHP profiler

Forgot to mention that as tick functions don't work in a threaded
environment, you'll need to set up PHP as CGI if you're on Windows.

Re: PHP profiler

Mladen Gogala wrote:[color=blue]
> I'm looking for a GPL licensed PHP profiler. The best thing around,
> except the commercial goodies from NuSphere, seems to be Carl Taylor's
> toolkit at http://www.adepteo.net/profiler/index.php
> Any experiences? Does anybody here uses profiler to see where the
> application time is spent and which components need fine tuning?[/color]

Never tried. But, I use APD <http://in.php.net/apd>. It's neat, but
lacks GUI. We use our own GUI (can't give, sorry).

--
<?php echo 'Just another PHP saint'; ?>
Email: rrjanbiah-at-Y!com Blog: http://rajeshanbiah.blogspot.com/

Re: PHP profiler

Chung Leong wrote:[color=blue]
> Here is a simple profiler I wrote.[/color]
<snip>

Hard core programmers like you'll always write codes and would
restrain to use other tools:( But, I would suggest you to try APD
<http://in.php.net/apd> and see the difference.

--
<?php echo 'Just another PHP saint'; ?>
Email: rrjanbiah-at-Y!com Blog: http://rajeshanbiah.blogspot.com/

Re: PHP profiler

On Mon, 19 Dec 2005 20:51:10 -0800, R. Rajesh Jeba Anbiah wrote:
[color=blue]
> Never tried. But, I use APD <http://in.php.net/apd>. It's neat, but
> lacks GUI. We use our own GUI (can't give, sorry).[/color]

APD is a debugger, not a profiler. Thanks.

--

Re: PHP profiler

On Tue, 20 Dec 2005 15:55:50 GMT, Mladen Gogala <gogala@sbcglob al.net> wrote:
[color=blue]
>On Mon, 19 Dec 2005 20:51:10 -0800, R. Rajesh Jeba Anbiah wrote:
>[color=green]
>> Never tried. But, I use APD <http://in.php.net/apd>. It's neat, but
>> lacks GUI. We use our own GUI (can't give, sorry).[/color]
>
>APD is a debugger, not a profiler. Thanks.[/color]

"APD is the Advanced PHP Debugger. It was written to provide profiling and
debugging capabilities for PHP code"

And it goes on with an example of profiling later on the page.

--
Andy Hassall :: andy@andyh.co.u k :: http://www.andyh.co.uk
http://www.andyhsoftware.co.uk/space :: disk and FTP usage analysis tool