On Wed, Aug 04, 1999 at 01:20:59PM +0200, Dag-Erling Smorgrav wrote:
> "Kelly Yancey" <[email protected]> writes:
> > [...]
>
> Which reminds me - has anyone thought of using DMA for zeroing pages,
> to avoid cache invalidation? The idea is to keep a chunk of zeroes on
> disk and DMA it into memory instead of clearing pages "manually". This
> assumes your disk supports DMA, of course.
On a Pentium III, you can use the new instructions to do page zero'ing
without allocating cache lines.
-Arun
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