From: Andrea Arcangeli <andrea@suse.de>
To: Christoph Hellwig <hch@infradead.org>,
William Lee Irwin III <wli@holomorphy.com>,
linux-kernel@vger.kernel.org
Subject: Re: 64GB NUMA-Q after pgcl
Date: Tue, 1 Apr 2003 02:44:53 +0200 [thread overview]
Message-ID: <20030401004453.GB12718@x30.random> (raw)
In-Reply-To: <20030331194117.A27859@infradead.org>
On Mon, Mar 31, 2003 at 07:41:17PM +0100, Christoph Hellwig wrote:
> On Mon, Mar 31, 2003 at 08:35:06PM +0200, Andrea Arcangeli wrote:
> > About you not caring anymore about the mem_map array size, that still
> > matters on the embedded usage, infact rmap on the embedded usage is the
> > biggest waste there, normally they don't even have swap so if something
> > you should use the rmap provided for truncate, rather than wasting
> > memory in the mem_map array.
>
> We have CONFIG_SWAP for that in 2.5..
that's useless for the case I mentioned, you definitely still need to
unpage all private and shared mappings, and you can use the rmap
provided by truncate for that. Infact I don't think CONFIG_SWAP is
useful at all.
Andrea
next prev parent reply other threads:[~2003-04-01 0:33 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-28 4:00 64GB NUMA-Q after pgcl William Lee Irwin III
2003-03-28 7:45 ` Zwane Mwaikambo
2003-03-28 7:57 ` William Lee Irwin III
2003-03-28 8:05 ` Zwane Mwaikambo
2003-03-28 10:14 ` William Lee Irwin III
2003-03-28 17:38 ` John Levon
2003-03-30 23:19 ` Andrea Arcangeli
2003-03-31 4:27 ` William Lee Irwin III
2003-03-31 5:22 ` William Lee Irwin III
2003-03-31 21:02 ` Ingo Oeser
2003-03-31 22:27 ` William Lee Irwin III
2003-04-01 1:25 ` Andrea Arcangeli
2003-03-31 18:35 ` Andrea Arcangeli
2003-03-31 18:41 ` Christoph Hellwig
2003-03-31 19:08 ` William Lee Irwin III
2003-04-01 0:47 ` Andrea Arcangeli
2003-04-01 0:44 ` Andrea Arcangeli [this message]
2003-03-31 18:55 ` William Lee Irwin III
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