From: David Miller <davem@davemloft.net>
To: clameter@sgi.com
Cc: linux-kernel@vger.kernel.org, ak@suse.com, holt@sgi.com,
linux-ia64@vger.kernel.org, mpm@selenic.com
Subject: Re: [QUICKLIST 0/6] Arch independent quicklists V1
Date: Mon, 12 Mar 2007 11:23:26 +0000 [thread overview]
Message-ID: <20070312.042326.59467679.davem@davemloft.net> (raw)
In-Reply-To: <Pine.LNX.4.64.0703120409150.25910@schroedinger.engr.sgi.com>
From: Christoph Lameter <clameter@sgi.com>
Date: Mon, 12 Mar 2007 04:12:32 -0700 (PDT)
> On Sun, 11 Mar 2007, David Miller wrote:
>
> > I'm going to make the radical declaration that it be perhaps often
> > better to always initialize page table chunks to all zeros on
> > allocation.
>
> That is the case if most of the page is going to be used soon. If we have
> sparse access patterns then not zeroing can avoid uselessly bringing
> cachelines in.
Good point.
next prev parent reply other threads:[~2007-03-12 11:23 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-11 2:09 [QUICKLIST 0/6] Arch independent quicklists V1 Christoph Lameter
2007-03-11 2:09 ` [QUICKLIST 1/6] Extract quicklist implementation from IA64 Christoph Lameter
2007-03-11 2:09 ` [QUICKLIST 2/6] i386: quicklist support Christoph Lameter
2007-03-11 3:22 ` William Lee Irwin III
2007-03-11 2:09 ` [QUICKLIST 3/6] i386: Use standard list manipulators for pgd_list Christoph Lameter
2007-03-11 2:09 ` [QUICKLIST 4/6] x86_64: Single Quicklist Christoph Lameter
2007-03-11 7:54 ` Andi Kleen
2007-03-11 16:44 ` Christoph Lameter
2007-03-14 19:49 ` Mel Gorman
2007-03-11 2:09 ` [QUICKLIST 5/6] x86_64: Separate quicklist for pgds Christoph Lameter
2007-03-11 2:09 ` [QUICKLIST 6/6] slub: remove special casing for PAGE_SIZE slabs Christoph Lameter
2007-03-11 20:59 ` [QUICKLIST 0/6] Arch independent quicklists V1 David Miller
2007-03-12 11:12 ` Christoph Lameter
2007-03-12 11:23 ` David Miller [this message]
2007-03-12 15:52 ` Robin Holt
2007-03-12 22:51 ` David Miller
2007-03-13 0:37 ` Paul Mackerras
2007-03-13 1:38 ` Christoph Lameter
2007-03-13 2:26 ` David Miller
2007-03-13 2:32 ` David Miller
2007-03-15 7:23 ` Andrew Morton
2007-03-15 7:31 ` David Miller
2007-03-15 7:40 ` Andrew Morton
2007-03-14 0:41 ` William Lee Irwin III
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