From: "Stephen C. Tweedie" <sct@redhat.com>
To: riel@nl.linux.org
Cc: "Stephen C. Tweedie" <sct@redhat.com>,
Andrea Arcangeli <andrea@suse.de>,
Roger Larsson <roger.larsson@norran.net>,
linux-kernel@vger.rutgers.edu, linux-mm@kvack.org
Subject: Re: kswapd @ 60-80% CPU during heavy HD i/o.
Date: Tue, 2 May 2000 23:34:39 +0100 [thread overview]
Message-ID: <20000502233439.A10012@redhat.com> (raw)
In-Reply-To: <Pine.LNX.4.21.0005021837080.10610-100000@duckman.conectiva>; from riel@conectiva.com.br on Tue, May 02, 2000 at 06:42:31PM -0300
Hi,
On Tue, May 02, 2000 at 06:42:31PM -0300, Rik van Riel wrote:
> On Tue, 2 May 2000, Stephen C. Tweedie wrote:
> Ermmm, a few days ago (yesterday?) you told me on irc that we
> needed to balance between zones ...
On a single NUMA node, definitely. We need balance between all of
the zones which may be in use in a specific allocation class.
NUMA is a very different issue. _Some_ memory pressure between nodes is
necessary: if one node is completely out of memory then we may have to
start allocating memory on other nodes to tasks tied to the node under
pressure. But in the normal case, you really do want NUMA memory classes
to be as independent of each other as possible.
--Stephen
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next prev parent reply other threads:[~2000-05-02 22:34 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <390E1534.B33FF871@norran.net>
2000-05-01 23:23 ` Rik van Riel
2000-05-01 23:33 ` David S. Miller
2000-05-02 0:07 ` Rik van Riel
2000-05-02 0:23 ` David S. Miller
2000-05-02 1:03 ` Rik van Riel
2000-05-02 1:13 ` David S. Miller
2000-05-02 1:31 ` Rik van Riel
2000-05-02 1:51 ` Andrea Arcangeli
2000-05-03 17:11 ` [PATCHlet] " Rik van Riel
2000-05-02 7:56 ` michael
2000-05-02 16:17 ` Roger Larsson
2000-05-02 15:43 ` Rik van Riel
2000-05-02 16:20 ` Andrea Arcangeli
2000-05-02 17:06 ` Rik van Riel
2000-05-02 21:14 ` Stephen C. Tweedie
2000-05-02 21:42 ` Rik van Riel
2000-05-02 22:34 ` Stephen C. Tweedie [this message]
2000-05-04 12:37 ` [PATCH][RFC] Alternate shrink_mmap Roger Larsson
2000-05-04 14:34 ` Rik van Riel
2000-05-04 22:38 ` [PATCH][RFC] Another shrink_mmap Roger Larsson
2000-05-04 15:25 ` [PATCH][RFC] Alternate shrink_mmap Roger Larsson
2000-05-04 18:30 ` Rik van Riel
2000-05-04 20:44 ` Roger Larsson
2000-05-04 18:59 ` Rik van Riel
2000-05-04 22:29 ` Roger Larsson
2000-05-02 18:03 ` kswapd @ 60-80% CPU during heavy HD i/o Roger Larsson
2000-05-02 17:37 ` Rik van Riel
2000-05-02 17:26 frankeh
2000-05-02 17:45 ` Rik van Riel
2000-05-02 17:53 ` Andrea Arcangeli
2000-05-02 18:46 frankeh
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