From: Nick Piggin <piggin@cyberone.com.au>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.6.3-mm3
Date: Mon, 23 Feb 2004 19:08:06 +1100 [thread overview]
Message-ID: <4039B4E6.3050801@cyberone.com.au> (raw)
In-Reply-To: <40396DA7.70200@cyberone.com.au>
Nick Piggin wrote:
>
>
> Nick Piggin wrote:
>
>>
>> Lowmem pagecache vs highmem pagecache should be balanced correctly?
>> I think it is with your other patches.
>>
>> Lowmem pagecache vs slab should be balanced correctly with my patch.
>>
>> Therefore highmem vs slab will be balanced correctly.
>>
>> Is that a good proof?
>>
>>
>
> Well no, because you can construct a similar "proof" for your
> patch because I assume balancing between zones is a two way
> operation :P. Actually, lowmem pressure does not assert highmem
> pressure which is the point where your balancing fails.
>
>
Humph. OK you're right. The above is of course right when all
else is equal, however slab can only be allocated from lowmem
while pagecache can come from anywhere.
So if you have 500MB of slab and 100MB of cache in lowmem, but
10000MB cache in highmem, lowmem pressure should be shrinking
more cache than slab.
Nick
next prev parent reply other threads:[~2004-02-23 8:12 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-23 1:22 2.6.3-mm3 Andrew Morton
2004-02-23 1:43 ` 2.6.3-mm3 Nick Piggin
2004-02-23 1:55 ` 2.6.3-mm3 Andrew Morton
2004-02-23 2:02 ` 2.6.3-mm3 Nick Piggin
2004-02-23 2:51 ` 2.6.3-mm3 Nick Piggin
2004-02-23 3:04 ` 2.6.3-mm3 Nick Piggin
2004-02-23 8:08 ` Nick Piggin [this message]
2004-02-23 8:48 ` [PATCH] vm-fix-all_zones_ok (was Re: 2.6.3-mm3) Nick Piggin
2004-02-23 8:59 ` Andrew Morton
2004-02-23 9:21 ` Nick Piggin
2004-02-23 9:24 ` Andrew Morton
2004-02-23 16:23 ` Bill Davidsen
2004-02-23 22:47 ` Chris Wedgwood
2004-02-24 4:11 ` Nick Piggin
2004-02-24 9:12 ` Chris Wedgwood
2004-02-24 9:22 ` Andrew Morton
2004-02-24 9:30 ` Chris Wedgwood
2004-02-24 9:37 ` Andrew Morton
2004-02-24 20:55 ` Rik van Riel
2004-02-24 22:36 ` Andrew Morton
2004-02-24 22:41 ` Rik van Riel
2004-02-23 2:19 ` 2.6.3-mm3 Christoph Hellwig
2004-02-23 2:52 ` 2.6.3-mm3 Joshua Kwan
2004-02-23 3:34 ` 2.6.3-mm3 Joshua Kwan
2004-02-23 18:09 ` [patch] 2.6.3-mm3: ALSA miXart driver doesn't compile Adrian Bunk
2004-02-23 18:58 ` 2.6.3-mm3 (compile stats) John Cherry
2004-02-23 20:00 ` Sam Ravnborg
2004-02-24 22:22 ` 2.6.3-mm3 Mike Fedyk
2004-02-24 22:30 ` 2.6.3-mm3 Andrew Morton
2004-02-25 21:27 ` 2.6.3-mm3 Mike Fedyk
2004-02-26 1:06 ` 2.6.3-mm3 Nick Piggin
2004-02-26 1:18 ` 2.6.3-mm3 Marc-Christian Petersen
2004-02-26 1:28 ` 2.6.3-mm3 Mike Fedyk
2004-02-26 1:32 ` 2.6.3-mm3 Mike Fedyk
2004-02-26 1:52 ` 2.6.3-mm3 Nick Piggin
2004-02-26 2:34 ` 2.6.3-mm3 Mike Fedyk
2004-02-26 2:40 ` 2.6.3-mm3 Nick Piggin
2004-02-26 2:48 ` 2.6.3-mm3 Mike Fedyk
2004-02-26 3:05 ` 2.6.3-mm3 Nick Piggin
2004-02-26 3:19 ` 2.6.3-mm3 Mike Fedyk
2004-02-26 3:29 ` 2.6.3-mm3 Nick Piggin
2004-02-26 4:08 ` 2.6.3-mm3 Mike Fedyk
2004-02-26 4:56 ` 2.6.3-mm3 Mike Fedyk
2004-02-27 19:02 ` 2.6.3-mm3 Mike Fedyk
2004-02-27 21:57 ` 2.6.3-mm3 Nick Piggin
2004-02-25 0:26 ` 2.6.3-mm3 hangs on boot x440 (scsi?) john stultz
2004-02-25 1:06 ` Andrew Morton
2004-02-25 1:22 ` john stultz
2004-02-25 1:27 ` john stultz
2004-02-25 1:48 ` Andrew Morton
2004-02-25 22:15 ` john stultz
2004-02-26 14:40 ` Go Taniguchi
2004-02-26 21:26 ` john stultz
2004-02-26 23:02 ` john stultz
2004-02-26 23:15 ` Matthew Wilcox
2004-02-27 0:14 ` john stultz
2004-02-27 0:58 ` john stultz
2004-02-27 2:25 ` john stultz
2004-02-25 1:15 ` [PATCH 2.6.3-mm3] serialize_writeback_fdatawait patch Daniel McNeil
2004-02-25 1:43 ` Andrew Morton
2004-02-25 22:56 ` Daniel McNeil
2004-02-25 2:51 ` 2.6.3-mm3 Mike Fedyk
2004-02-25 3:09 ` 2.6.3-mm3 Andrew Morton
2004-02-25 3:34 ` 2.6.3-mm3 Mike Fedyk
2004-02-25 10:47 ` 2.6.3-mm3 sometimes freeze on "sync" Helge Hafting
2004-02-25 9:39 ` Andrew Morton
2004-02-26 8:49 ` Helge Hafting
2004-02-27 14:49 ` Alexander Hoogerhuis
2004-02-27 23:34 ` 2.6.3-mm3 john stultz
2004-02-28 0:06 ` 2.6.3-mm3 Andrew Morton
2004-02-28 2:48 ` 2.6.3-mm3 (ioremap failure w/ _X86_4G and _NUMA) john stultz
2004-02-28 3:18 ` Dave Hansen
2004-02-28 4:34 ` Martin J. Bligh
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