Re: prefetch(x)

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On Tue, Apr 20, 2010 at 16:34, Onkar Mahajan <kern.devel@xxxxxxxxx> wrote:
> Thanks for your reply.
>
> I found this , I thought I must share this with you :
>
>    This function is used to minimize cache-miss latency by moving
> data into a cache before it is accessed. You can insert calls to
> __builtin_prefetch into code for which you know addresses of data in
> memory that is likely to be accessed soon. If the target supports
> them, data prefetch instructions will be generated. If the prefetch is
> done early enough before the access then the data will be in the cache
> by the time it is accessed.

Thank you very much for your willingness to share the information with
me. It makes me know more about this prefetch stuff

-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com

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