From: William Lee Irwin III <wli@holomorphy.com>
To: Andrea Arcangeli <andrea@suse.de>
Cc: Rik van Riel <riel@redhat.com>, Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org, Robert_Hentosh@Dell.com,
Con Kolivas <kernel@kolivas.org>
Subject: Re: [PATCH][1/2] adjust dirty threshold for lowmem-only mappings
Date: Sun, 2 Jan 2005 08:36:15 -0800 [thread overview]
Message-ID: <20050102163615.GJ29332@holomorphy.com> (raw)
In-Reply-To: <20050102161008.GF5164@dualathlon.random>
On Sat, Dec 25, 2004 at 07:07:21PM -0800, William Lee Irwin III wrote:
>> The problem as posed is that the dirty memory limits are global, but
On Sun, Jan 02, 2005 at 05:10:08PM +0100, Andrea Arcangeli wrote:
> What do you mean with global? Global is one thing, but taking highmem
> into account for calculating the limit is another thing. The
> nr_free_buffer_pages exists exactly to avoid taking highmem into account
> for the dirty memory limits. 2.6 must also ignore highmem in the dirty
> memory limits like 2.4 does. I'd be surprised if somebody broke this in
> 2.6. As far as I can tell, while writing to a blkdev it cannot make any
> difference if you've 4G or 1G of ram because of that (I mean on x86 of
> course).
It's not used for any of these purposes in 2.6.x.
-- wli
next prev parent reply other threads:[~2005-01-02 16:36 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-20 15:15 [PATCH][1/2] adjust dirty threshold for lowmem-only mappings Rik van Riel
2004-12-20 15:23 ` Rik van Riel
2004-12-20 20:54 ` Andrew Morton
2004-12-20 21:27 ` Rik van Riel
2004-12-23 19:21 ` Rik van Riel
2004-12-24 16:01 ` Andrea Arcangeli
2004-12-24 16:22 ` Rik van Riel
2004-12-24 16:40 ` Andrea Arcangeli
2004-12-24 22:12 ` Rik van Riel
2004-12-25 2:07 ` Andrea Arcangeli
2004-12-25 17:59 ` Rik van Riel
2004-12-25 18:36 ` Andrea Arcangeli
2004-12-25 19:07 ` William Lee Irwin III
2004-12-25 20:03 ` Andrea Arcangeli
2004-12-26 3:07 ` William Lee Irwin III
2005-01-02 16:10 ` Andrea Arcangeli
2005-01-02 16:36 ` William Lee Irwin III [this message]
2005-01-02 16:53 ` Rik van Riel
2005-01-02 17:21 ` Andrea Arcangeli
2004-12-25 22:03 ` Nikita Danilov
2004-12-26 3:16 ` William Lee Irwin III
2005-01-02 15:11 ` Jens Axboe
2005-01-02 16:18 ` Andrea Arcangeli
2005-01-02 20:03 ` Andrew Morton
2005-01-02 20:25 ` William Lee Irwin III
-- strict thread matches above, loose matches on Subject: below --
2004-12-20 16:46 Robert_Hentosh
2004-12-20 17:56 ` Sami Farin
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