Re: Fw: potential /dev/urandom scalability improvement

[David Mosberger]

>>>>> On Fri, 26 Mar 2004 12:33:03 -0800, Andrew Morton <akpm@xxxxxxxx> said:

  Andrew> If someone does, say,

  Andrew> 	prefetch_range(some_pointer, sizeof(*some_pointer));

  Andrew> then it is possible that prefetch_range() could

  Andrew> a) execute a prefetch at addresses which are not
  Andrew> PREFETCH_STRIDE-aligned and, as a consequence,

  Andrew> b) prefetch data from the next page, outside the range of
  Andrew> the user's (addr,len).

This is getting silly.  Cache-lines _never_ cross page-boundaries.

	--david
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