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Hi. I were using something like this, os.time() instead o os.clock(), but it uses much CPU to do nothing. In a case like mine, where the server is so hard used by many process, it could be very bad for global performance.

On Wed, May 20, 2009 at 11:58 PM, RJP Computing <> wrote:

On Wed, May 20, 2009 at 4:33 PM, Marco Antonio Abreu <> wrote:
Hi Guys,
I am writting a script to copy some data from one database to another, this script will be running all the time, verifying if have something to copy.
I need to wait for some seconds between two checks, to do not overload the DB server or CPU.
How can I implement a function (or use if already has) to perform a "sleep", to wait some (milli)seconds doing nothing.

This is a Lua version and yes I know it is not a true Sleep because it uses CPU, but here you go:

function Delay( seconds )      
     local start = os.clock() 
     while os.clock() - start < seconds do end     
Delay( .500 )