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From: David Mosberger <davidm@napali.hpl.hp.com>
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Date: Mon, 5 Aug 2002 09:59:19 -0700
To: frankeh@watson.ibm.com
Cc: Linus Torvalds <torvalds@transmeta.com>,
       "David S. Miller" <davem@redhat.com>, <davidm@hpl.hp.com>,
       <gh@us.ibm.com>, <Martin.Bligh@us.ibm.com>, <wli@holomorphy.com>,
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Subject: Re: large page patch (fwd) (fwd)
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>>>>> On Sun, 4 Aug 2002 15:30:24 -0400, Hubertus Franke <frankeh@watson.ibm.com> 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.

	--david
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