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Posted by windandwaves on 09/28/05 04:40
Chung Leong wrote:
> windandwaves wrote:
>> b. what is a lot?
>
> No easy answer. Depends a lot on the hardware and bandwidth, as well
> as the nature of the site. Some years ago I was on a team building the
> launch site for a certain next-generation video game console. The
> requirements called for 20 million hits on the first day IIRC.
>
>> c. are there any techniques to reduce the load on the server (e.g.
>> changing PHP files into HTML ones)?
>
> Zend sells a number products that are supposed to improve performance.
> Code execution speed usually isn't a big factor though. Scalability is
> usually limited by the database. So I would avoid hitting the database
> as much as possible. For example, if you have a drop-down list of US
> states, don't populate it with data from the database. It's quite
> unnecessary as the list isn't going to change anytime soon.
>
>> d. is there a way to measure server load and calculate expected load
>> with X number of visitors?
>
> For quotable numbers, you really need a commercial tool. LoadRunner
> from Mercury Interactive and SilkTest from Segue come to mind.
>
> For a very rough estimate, in the past I've done something as simple
> as sticking <script> location.reload() </script> into my page footer
> and opening up a bunch of browser windows.
might try that... brilliant.
one more question: if I add include_once("library/functions5.php") to a
bunch of scripts (with a myriad of functions), does that add a lot of
weight? I am adding these by default, because then I do not have to think
which page needs then and which page does not.
Thank you for the detailed answer.
- Nicolaas
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