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Date: Thu, 01 Aug 2002 23:33:26 -0700
From: "Martin J. Bligh" <Martin.Bligh@us.ibm.com>
Reply-To: "Martin J. Bligh" <Martin.Bligh@us.ibm.com>
To: davidm@hpl.hp.com, "David S. Miller" <davem@redhat.com>
cc: gh@us.ibm.com, riel@conectiva.com.br, akpm@zip.com.au,
       linux-kernel@vger.kernel.org, linux-mm@kvack.org, rohit.seth@intel.com,
       sunil.saxena@intel.com, asit.k.mallick@intel.com
Subject: Re: large page patch 
Message-ID: <868823061.1028244804@[10.10.2.3]>
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>   DaveM>    In my opinion the proposed large-page patch addresses a
>   DaveM> relatively pressing need for databases (primarily).
> 
>   DaveM> Databases want large pages with IPC_SHM, how can this
>   DaveM> special syscal hack address that?
> 
> I believe the interface is OK in that regard.  AFAIK, Oracle is happy
> with it.

Is Oracle now the world's only database? I think not.
 
>   DaveM> It's great for experimentation, but give up syscall slots
>   DaveM> for this?
> 
> I'm a bit concerned about this, too.  My preference would have been to
> use the regular mmap() and shmat() syscalls with some
> augmentation/hint as to what the preferred page size is 

I think that's what most users would prefer, and I don't think it
adds a vast amount of kernel complexity. Linus doesn't seem to
be dead set against the shmem modifications at least ... so that's
half way there ;-)

M.
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