From: Nick Piggin <piggin@cyberone.com.au>
To: Andrea Arcangeli <andrea@suse.de>
Cc: Andrew Morton <akpm@osdl.org>,
marcelo.tosatti@cyclades.com, j-nomura@ce.jp.nec.com,
linux-kernel@vger.kernel.org, riel@redhat.com, torvalds@osdl.org
Subject: Re: [2.4] heavy-load under swap space shortage
Date: Mon, 15 Mar 2004 15:38:51 +1100 [thread overview]
Message-ID: <4055335B.30402@cyberone.com.au> (raw)
In-Reply-To: <20040315001400.GX30940@dualathlon.random>
Andrea Arcangeli wrote:
>
>I don't see other ways to optimize it (and I never enjoyed too much the
>per-zone lru since it has some downside too with a worst case on 2G
>systems). peraphs a further optimization could be a transient per-cpu
>lru refiled only by the page reclaim (so absolutely lazy while lots of
>ram is free), but maybe that's already what you're doing when you say
>"Adding/removing sixteen pages for one taking of the lock". Though the
>fact you say "sixteen pages" sounds like it's not as lazy as it could
>be.
>
Hi Andrea,
What are the downsides on a 2G system?
next prev parent reply other threads:[~2004-03-15 4:39 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-02 10:12 [2.4] heavy-load under swap space shortage j-nomura
2004-02-02 13:29 ` Hugh Dickins
2004-02-03 7:53 ` j-nomura
2004-02-03 17:19 ` Hugh Dickins
2004-02-04 11:40 ` j-nomura
2004-02-05 18:42 ` Hugh Dickins
2004-02-06 9:03 ` j-nomura
2004-03-10 10:57 ` j-nomura
2004-03-14 19:47 ` Marcelo Tosatti
2004-03-14 19:54 ` Rik van Riel
2004-03-14 20:15 ` Andrew Morton
[not found] ` <20040314230138.GV30940@dualathlon.random>
2004-03-14 23:22 ` Andrew Morton
2004-03-15 0:14 ` Andrea Arcangeli
2004-03-15 4:38 ` Nick Piggin [this message]
2004-03-15 11:49 ` Andrea Arcangeli
2004-03-15 13:23 ` Rik van Riel
2004-03-15 14:37 ` Nick Piggin
2004-03-15 14:50 ` Andrea Arcangeli
2004-03-15 18:35 ` Andrew Morton
2004-03-15 18:51 ` Andrea Arcangeli
2004-03-15 19:02 ` Andrew Morton
2004-03-15 21:55 ` Andrea Arcangeli
2004-03-15 22:05 ` Nick Piggin
2004-03-15 22:24 ` Andrea Arcangeli
2004-03-15 22:41 ` Nick Piggin
2004-03-15 22:44 ` Andrea Arcangeli
2004-03-15 22:41 ` Rik van Riel
2004-03-15 23:32 ` Andrea Arcangeli
2004-03-16 6:27 ` Nick Piggin
2004-03-16 7:25 ` Marcelo Tosatti
2004-03-16 6:31 ` Marcelo Tosatti
2004-03-16 13:47 ` Andrea Arcangeli
2004-03-16 16:59 ` Marcelo Tosatti
2004-11-22 15:01 ` Lazily add anonymous pages to LRU on v2.4? was " Marcelo Tosatti
2004-11-22 19:49 ` Andrea Arcangeli
2004-11-22 15:58 ` Marcelo Tosatti
2004-05-26 12:41 ` Marcelo Tosatti
2004-05-26 18:24 ` Marc-Christian Petersen
2004-05-27 11:16 ` Marcelo Tosatti
2004-05-26 19:06 ` Hugh Dickins
2004-05-26 22:23 ` Andrea Arcangeli
2004-05-28 2:55 ` j-nomura
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