Re: [Gems-users] Real time based experiments

[Alaa Alameldeen <alaa@xxxxxxxxxxx>]

arrvindh shriraman wrote:
> Can I perform simulation of programs which terminate based on real-time 
> elapsed.
> For eg: I have a loop which runs until 2 seconds have elapsed. I am 
> using the
> gethrtimer call to determine the cycles elapsed. I have attached only ruby.
> Does it make sense to perform experiments this way or based on number of 
> loops/transactions completed.
It is not clear to me what you will be able to measure or use to compare 
different simulations when you run for a fixed period of time. Ideally 
you want to use runtime (or an equivalent metric like cycles per 
transaction) as a comparison metric. How will you compare your runs if 
you have them execute for the same period of time?
If you are going to use another metric like IPC, you should make sure 
that simulations you compare have executed the same amount of useful 
code (i.e., not idle loops etc.).
-Alaa