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From: Christoph Lameter <clameter@sgi.com>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-mm@kvack.org, Andy Whitcroft <apw@shadowen.org>,
	Dave Hansen <haveblue@us.ibm.com>
Subject: Re: [PATCH] Get rid of zone_table V2
Date: Tue, 19 Sep 2006 08:41:11 -0700 (PDT)	[thread overview]
Message-ID: <Pine.LNX.4.64.0609190839370.5034@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20060919083851.75b26075.akpm@osdl.org>

On Tue, 19 Sep 2006, Andrew Morton wrote:

> So it's not completely obvious what the best approach is here.  It's an
> area of some delicacy which requires some thought and testing.

The primary thing that I though was worth doing is to get  the size of 
struct zone to a power of 2. Then the multiply is avoided in page_zone. 
It just happened that this was possible by removing the 
padding.

Would be okay to grow the size of struct zone to the next power of 2 
bytes?



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  reply	other threads:[~2006-09-19 15:41 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-09-18 19:21 Christoph Lameter
2006-09-18 20:28 ` Andrew Morton
2006-09-18 22:51   ` Christoph Lameter
2006-09-18 23:15     ` Andrew Morton
2006-09-18 23:46       ` Christoph Lameter
2006-09-18 23:58         ` Andrew Morton
2006-09-19  0:08           ` Christoph Lameter
2006-09-19  0:14           ` Christoph Lameter
2006-09-19  0:31             ` Andrew Morton
2006-09-19  1:20               ` Christoph Lameter
2006-09-19  6:12               ` Christoph Lameter
2006-09-19  6:33                 ` Andrew Morton
2006-09-19 14:10                   ` Christoph Lameter
2006-09-19 15:38                     ` Andrew Morton
2006-09-19 15:41                       ` Christoph Lameter [this message]
2006-09-19 16:23                         ` Nick Piggin
2006-09-19 16:45                           ` Nick Piggin
2006-09-19 17:50                             ` Christoph Lameter
2006-09-19 18:24                               ` Andi Kleen
2006-09-19 16:17                       ` Nick Piggin
2006-09-24 10:06 ` Andrew Morton
2006-09-24 16:58   ` Christoph Lameter
2006-09-27  9:19   ` Andrew Morton
2006-09-27  9:26     ` Andy Whitcroft
2006-09-27 11:23     ` [PATCH] zone table removal miss merge Andy Whitcroft
2006-09-27 16:19       ` Christoph Lameter
2006-09-27 11:27     ` [PATCH] Get rid of zone_table V2 Andy Whitcroft
2006-09-27 16:24       ` Andrew Morton
2006-09-30 18:47       ` Christoph Lameter
2006-09-30 18:48         ` Christoph Lameter
2006-09-30 20:08         ` Andrew Morton
2006-10-02 15:57           ` Christoph Lameter
2006-10-02 17:10           ` Christoph Lameter
2006-10-04 10:10             ` Andy Whitcroft
2006-10-06 14:45             ` [PATCH] zoneid fix up calculations for ZONEID_PGSHIFT Andy Whitcroft
2006-10-06 17:00               ` Christoph Lameter

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