From: "Martin J. Bligh" <mbligh@aracnet.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [Lse-tech] Re: fix zonelist ordering for NUMA
Date: Thu, 26 Feb 2004 23:54:41 +0000 [thread overview]
Message-ID: <112020000.1077839681@flay> (raw)
In-Reply-To: <100070000.1077834062@flay>
> On Thu, 2004-02-26 at 14:21, Martin J. Bligh wrote:
>> Also, I seem to recall those build_zonelists functions are used for both
>> NUMA and UMA ... now they're getting complex enough that it's probably
>> worth making a specific non-NUMA version, if only for the sanity of
>> 99% of the poor souls trying to work out how a UMA machine lays it out ;-)
>>
>> It looks like it won't change ordering for existing boxes with single
>> layer flat NUMA topologies (round-robin), but we probably ought to check
>> that carefully ;-)
>
> More ifdefs just make the code messier. How about adding a nice comment
> explaining that UMA will fall right through the loop, and giving the
> poor souls a temporary reprieve?
In this case, I disagree - it's better to just have the ifdef.
M.
next prev parent reply other threads:[~2004-02-26 23:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-26 22:21 [Lse-tech] Re: fix zonelist ordering for NUMA Martin J. Bligh
2004-02-26 23:09 ` Matthew Dobson
2004-02-26 23:40 ` Dave Hansen
2004-02-26 23:54 ` Martin J. Bligh [this message]
2004-02-27 0:47 ` Chris Wedgwood
2004-02-27 0:56 ` Martin J. Bligh
2004-02-27 5:38 ` j-nomura
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