>"volatile" only say to the compiler to not put the variable in a register.

>Could i ask why does you want to mesure the speed of the RAM ? Is it to study the NUMA behavior of the machine?

In development phase of the board, we are trying to measure RAM performance gain while changing type of the RAM.

The standard benchmark tools are giving us the Cache performance only. So we want to try some method to measure RAM performance.

On Wed, Feb 27, 2013 at 2:30 PM, Karaoui mohamed lamine <moharaka@gmail.com> wrote:

2013/2/27 sandeep kumar <coolsandyforyou@gmail.com>

>>I am not sure but what if you make the variable as a volatile?
Hey i tried. But still is showing the same time for int & volatile int.

"volatile" only say to the compiler to not put the variable in a register.
Could i ask why does you want to mesure the speed of the RAM ? Is it to study the NUMA behavior of the machine?

Thanks

Sandeep

On Tue, Feb 26, 2013 at 6:50 PM, ankur dwivedi <ankurengg2003@gmail.com> wrote:

I am not sure but what if you make the variable as a volatile?

On Tue, Feb 26, 2013 at 5:01 PM, sandeep kumar <coolsandyforyou@gmail.com> wrote:

Hi All
In performance benchmark tools, When we profile read/write timings mostly, those read/writes are done to cache only.

I want to measure my DDR(RAM chip) performance.
So i want to make sure, every read/write should happen to DDR RAM chip only.

How can i achieve this...Any ideas/suggestions...?

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Thanks

Ankur Dwivedi

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