depending on what you need it for, recompile it with tracing, and then 
you get the ultimate timing precision, individual clock cycles. 
isildur

On Thu, 1 Aug 2002, Wojciech Puchar wrote:

> while seeing that discussion, and just need to measure precisely time in
> my program...
> 
> 
> what function can i use to measure elapsed time with precision like 10us.
> 
> i could have my machine unloaded and process on highest priority if it
> help
> 
>