What's the fatest way to copy a block of system ram?

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Kojima
Posts: 275
Joined: Mon Jun 26, 2006 3:49 am

What's the fatest way to copy a block of system ram?

Post by Kojima »

I mean from one point in sysmem to the other. Is it memcpy or is there a faster hardware dma thing I can use? Or is dma for sys ram to gs ram only?

Thanks.
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EEUG
Posts: 136
Joined: Fri May 13, 2005 4:49 am
Location: The Netherlands

Post by EEUG »

...fastest way is to use uncached accelerated buffer and lq/sq instructions (8 'lq' in the row following 8 'sq' in the row). Limitation is that your blocks must have 16 byte alignment...
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