How to measure the RAM read/write performance

[sandeep kumar]

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...?

-- 
With regards,
Sandeep Kumar Anantapalli,
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