If you are using DB queries a lot, try to use LIMIT, this will save lot 
of your time.

Tom Carter wrote:

> Do you have many DB queries? What is the average size of the result
> returned?
> 
> have you tried running timing functions on it to get a measure of how long
> the page is taking? theres many examples on the web..
> 
> You can also use these to calculate the time for different sections.. that
> should help you work out what is taking the time.
> 
> HTH,Tom
> 
>> 
>> Hi all
>> 
>> I have Linux/PHP/MySQL. Some of my script really run
>> very slowly. painfully slow. All data are fetched from
>> the database. The tables in database are indexed.
>> Still  some scripts are very slow. I am using nested
>> while and for loops. Any idea how to make them faster?
>> 
>> What should I avoid in my scripting?
>> 
>> thanks all
>> 
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