Re: large page patch (fwd) (fwd)

From: David Mosberger (
Date: Mon Aug 05 2002 - 11:59:19 EST

>>>>> On Sun, 4 Aug 2002 15:30:24 -0400, Hubertus Franke <> said:

  Hubertus> Yes, if we (correctly) assume that page coloring only buys
  Hubertus> you significant benefits for small associative caches
  Hubertus> (e.g. <4 or <= 8).

This seems to be a popular misconception. Yes, page-coloring
obviously plays no role as long as your cache no bigger than
PAGE_SIZE*ASSOCIATIVITY. IIRC, Xeon can have up to 1MB of cache and I
bet that it doesn't have a 1MB/4KB=256-way associative cache. Thus,
I'm quite confident that it's possible to observe significant
page-coloring effects even on a Xeon.

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