How to measure the RAM read/write performance

[Karaoui mohamed lamine]

2013/2/27 sandeep kumar <coolsandyforyou at 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 at 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 at 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...?
>>>
>>> --
>>> With regards,
>>> Sandeep Kumar Anantapalli,
>>>
>>> _______________________________________________
>>> Kernelnewbies mailing list
>>> Kernelnewbies at kernelnewbies.org
>>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>>>
>>>
>>
>>
>> --
>> Thanks
>>
>> Ankur Dwivedi
>>
>>
>
>
> --
> With regards,
> Sandeep Kumar Anantapalli,
>
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>
>
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