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From: Peter Chubb <peterc@chubb.wattle.id.au>
To: Jeremy Fitzhardinge <jeremy@goop.org>, ianw@gelato.unsw.edu.au
Cc: Matt Mackall <mpm@selenic.com>,
	David Miller <davem@davemloft.net>,
	nickpiggin@yahoo.com.au, akpm@linux-foundation.org,
	clameter@sgi.com, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org
Subject: Re: [QUICKLIST 0/4] Arch independent quicklists V2
Date: Wed, 14 Mar 2007 08:46:33 +1100	[thread overview]
Message-ID: <87hcsoakau.wl%peterc@chubb.wattle.id.au> (raw)
In-Reply-To: <45F7194B.5080705@goop.org>

>>>>> "Jeremy" == Jeremy Fitzhardinge <jeremy@goop.org> writes:


Jeremy> And do the same in pte pages for actual mapped pages?  Or do
Jeremy> you think they would be too densely populated for it to be
Jeremy> worthwhile?

We've been doing some measurements on how densely clumped ptes are.
On 32-bit platforms, they're pretty dense.  On IA64, quite a bit
sparser, depending on the workload of course.  I think that's mostly because
of the larger pagesize on IA64 -- with 64k pages, you don't need very
many to map a small object.

I'm hoping IanW can give more details.

  reply	other threads:[~2007-03-13 22:26 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-13  7:13 [QUICKLIST 0/4] Arch independent quicklists V2 Christoph Lameter
2007-03-13  7:13 ` [QUICKLIST 1/4] Generic quicklist implementation Christoph Lameter
2007-03-13  9:05   ` Paul Mundt
2007-03-15 20:51     ` Christoph Lameter
2007-03-13  7:13 ` [QUICKLIST 2/4] Quicklist support for i386 Christoph Lameter
2007-03-13  7:13 ` [QUICKLIST 3/4] Quicklist support for x86_64 Christoph Lameter
2007-03-13  7:13 ` [QUICKLIST 4/4] Quicklist support for sparc64 Christoph Lameter
2007-03-13  8:53 ` [QUICKLIST 0/4] Arch independent quicklists V2 Andrew Morton
2007-03-13  8:03   ` Nick Piggin
2007-03-13 11:52     ` Andrew Morton
2007-03-13 11:06       ` Nick Piggin
2007-03-13 12:15         ` Andrew Morton
2007-03-13 11:20           ` Christoph Lameter
2007-03-13 12:30             ` Andrew Morton
2007-03-15 20:23               ` Christoph Lameter
2007-03-13 11:30           ` Nick Piggin
2007-03-13 12:47             ` Andrew Morton
2007-03-13 12:01               ` Nick Piggin
2007-03-13 13:11                 ` Andrew Morton
2007-03-13 12:18                   ` Nick Piggin
2007-03-13 17:30                 ` Jeremy Fitzhardinge
2007-03-13 20:03                   ` Matt Mackall
2007-03-13 20:17                     ` Jeremy Fitzhardinge
2007-03-13 20:21                       ` Matt Mackall
2007-03-13 21:07                         ` David Miller
2007-03-13 21:14                           ` Matt Mackall
2007-03-13 21:36                             ` Jeremy Fitzhardinge
2007-03-13 21:46                               ` Peter Chubb [this message]
2007-03-13 21:48                             ` David Miller
2007-03-14  1:12               ` William Lee Irwin III
2007-03-15 23:12                 ` William Lee Irwin III
2007-03-13 23:58       ` Paul Mackerras
2007-03-13 11:17   ` Christoph Lameter
2007-03-13 12:27     ` Andrew Morton
2007-03-15 20:28       ` Christoph Lameter

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