From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Benjamin LaHaise <bcrl@redhat.com>
Cc: "Martin J. Bligh" <mbligh@aracnet.com>,
Rik van Riel <riel@conectiva.com.br>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Bill Davidsen <davidsen@tmr.com>,
Dave McCracken <dmccr@us.ibm.com>, Andrew Morton <akpm@digeo.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linux Memory Management <linux-mm@kvack.org>
Subject: Re: [PATCH 2.5.43-mm2] New shared page table patch
Date: 22 Oct 2002 19:22:14 +0100 [thread overview]
Message-ID: <1035310934.31917.124.camel@irongate.swansea.linux.org.uk> (raw)
In-Reply-To: <20021022134501.C20957@redhat.com>
On Tue, 2002-10-22 at 18:45, Benjamin LaHaise wrote:
> On Tue, Oct 22, 2002 at 10:36:40AM -0700, Martin J. Bligh wrote:
> > Bear in mind that large pages are neither swap backed or file backed
> > (vetoed by Linus), for starters. There are other large app problem scenarios
> > apart from Oracle ;-)
>
> I think the fact that large page support doesn't support mmap for users
> that need it is utterly appauling; there are numerous places where it is
> needed. The requirement for root-only access makes it useless for most
> people, especially in HPC environments where it is most needed as such
> machines are usually shared and accounts are non-priveledged.
I was very suprised the large page crap went in, in the form it
currently exists. Merging pages makes sense, spotting and doing 4Mb page
allocations kernel side makes sense. The rest is very questionable
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next prev parent reply other threads:[~2002-10-22 18:22 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-18 23:06 Dave McCracken
2002-10-19 1:32 ` Ed Tomlinson
2002-10-19 19:17 ` Bill Davidsen
2002-10-19 19:36 ` Dave McCracken
2002-10-20 4:20 ` Eric W. Biederman
2002-10-20 6:18 ` Martin J. Bligh
2002-10-21 14:55 ` Eric W. Biederman
2002-10-21 15:21 ` Martin J. Bligh
2002-10-22 3:54 ` Eric W. Biederman
2002-10-22 5:55 ` Martin J. Bligh
2002-10-22 16:09 ` Rik van Riel
2002-10-22 16:14 ` Martin J. Bligh
2002-10-22 18:06 ` Bill Davidsen
2002-10-22 19:02 ` Martin J. Bligh
2002-10-22 19:21 ` Dave McCracken
2002-10-24 10:50 ` Bill Davidsen
2002-10-24 14:22 ` Martin J. Bligh
2002-10-24 14:38 ` Dave McCracken
2002-10-24 14:51 ` Martin J. Bligh
2002-10-25 17:31 ` Bill Davidsen
2002-10-24 10:42 ` Bill Davidsen
2002-10-22 17:19 ` Benjamin LaHaise
2002-10-22 17:36 ` Martin J. Bligh
2002-10-22 17:45 ` Benjamin LaHaise
2002-10-22 17:56 ` Andrew Morton
2002-10-22 18:01 ` Benjamin LaHaise
2002-10-22 19:03 ` Martin J. Bligh
2002-10-22 20:23 ` Alan Cox
2002-10-22 21:33 ` Gerrit Huizenga
2002-10-22 18:22 ` Alan Cox [this message]
2002-10-22 18:47 ` Gerrit Huizenga
2002-10-22 18:55 ` Benjamin LaHaise
2002-10-22 19:27 ` Gerrit Huizenga
2002-10-22 19:29 ` Benjamin LaHaise
2002-10-22 19:56 ` Arjan van de Ven
2002-10-22 14:26 ` Rik van Riel
2002-10-22 17:09 ` Andrew Morton
2002-10-22 17:15 ` Rik van Riel
2002-10-22 18:36 ` Dave McCracken
2002-10-22 18:49 ` Andrew Morton
2002-10-22 19:06 ` Gerrit Huizenga
2002-10-22 19:29 ` Dave McCracken
2002-10-22 19:11 ` Ulrich Drepper
2002-10-22 19:29 ` Gerrit Huizenga
2002-10-22 18:45 ` Gerrit Huizenga
2002-10-22 17:54 ` Bill Davidsen
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