Measuring performance of PHP

[Mudge]

I'm writing PHP Web sites that are database driven with mysql.

I'm looking for ways to measure the performance (speed) of my php code, so
that I can find ways to write the fastest php code. Any suggestions?

Nick

[Aggro]

Mudge wrote:

I'm looking for ways to measure the performance (speed) of my php code, so
that I can find ways to write the fastest php code. Any suggestions?

Use microtime() function at the beginning of your code and save the
result into variable. Then do the same at the end and calculate the
difference.

[Chung Leong]

"Mudge" <ma******@hotma il.com> wrote in message
news:hklRc.2671 53$XM6.192050@a ttbi_s53...

I'm writing PHP Web sites that are database driven with mysql.

I'm looking for ways to measure the performance (speed) of my php code, so
that I can find ways to write the fastest php code. Any suggestions?

Nick

Load up the database with lots of test data and run through the site with
your browser. Perceived performance is what's important. After all, if an
improvement can only be detected by a test tool, what is the point?

[Mike Peters]

On 2004-08-08, Mudge wrote:

I'm writing PHP Web sites that are database driven with mysql.

I'm looking for ways to measure the performance (speed) of my php code, so
that I can find ways to write the fastest php code. Any suggestions?

Nick

Check the PHP manual section for microtime, especially the example code
and user comments:
http://www.php.net/microtime

--
Mike Peters
mike [-AT-] ice2o [-DOT-] com
http://www.ice2o.com

[steve]

"Mudge" wrote:

I’m writing PHP Web sites that are database driven with mysql.

I’m looking for ways to measure the performance (speed) of my
php code, so
that I can find ways to write the fastest php code. Any suggestions?
Nick

Use a PHP timing class. All done 4 u.
http://www.phpbuilder.com/columns/akent20000926.php3

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[Aggro]

Chung Leong wrote:

Load up the database with lots of test data and run through the site with
your browser. Perceived performance is what's important. After all, if an
improvement can only be detected by a test tool, what is the point?

Nothing if you have only one user. But if you got 10^X users, then wait
time for each user will increase, because they have to wait for other
viewers first.

For example, if it takes 1 second for the php to do it all, and we have
600 viewers. Assuming processor time will be shared equally for all,
then they all have to wait 10 minutes before they can see the page. If
time will be shared unequally, then first person might get the page in 1
second, but the last one would have to wait 10 minutes.

And now, if you can speed up the page into 0,5 seconds. Doesn't look
much, but viewers will see the page 5 minutes faster assuming we have
the same amount of viewers.

[Per Gustafsson]

Mudge wrote:

I'm writing PHP Web sites that are database driven with mysql.

I'm looking for ways to measure the performance (speed) of my php code, so
that I can find ways to write the fastest php code. Any suggestions?

Nick

I think you should check out the xdebug extension created by Derick Rethans,
available at http://www.xdebug.org

It's a great way to measure performance, and will help you debug your PHP apps.

/p

--
http://www.pergustafsson.com/