From: Andrea Arcangeli <andrea@suse.de>
To: Nick Piggin <piggin@cyberone.com.au>
Cc: Rik van Riel <riel@redhat.com>, Andrew Morton <akpm@osdl.org>,
marcelo.tosatti@cyclades.com, j-nomura@ce.jp.nec.com,
linux-kernel@vger.kernel.org, torvalds@osdl.org
Subject: Re: [2.4] heavy-load under swap space shortage
Date: Mon, 15 Mar 2004 15:50:20 +0100 [thread overview]
Message-ID: <20040315145020.GC30940@dualathlon.random> (raw)
In-Reply-To: <4055BF90.5030806@cyberone.com.au>
On Tue, Mar 16, 2004 at 01:37:04AM +1100, Nick Piggin wrote:
> This case I think is well worth the unfairness it causes, because it
> means your zone's pages can be freed quickly and without freeing pages
> from other zones.
freeing pages from other zones is perfectly fine, the classzone design
gets it right, you have to free memory from the other zones too or you
have no way to work on a 1G machine. you call the thing "unfair" when it
has nothing to do with fariness, your unfariness is the slowdown I
pointed out, it's all about being able to maintain a more reliable cache
information from the point of view of the pagecache users (the pagecache
users cares at the _classzone_, they can't care about the zones
themself), it has nothing to do with fairness.
next prev parent reply other threads:[~2004-03-15 14:49 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
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 [this message]
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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