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Date: Wed, 19 Sep 2001 12:30:18 -0700
From: Mike Fedyk <mfedyk@matchmail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: the Gimp and pre11
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On Wed, Sep 19, 2001 at 03:48:57PM +0200, Daniel Egger wrote:
> On Mit, 2001-09-19 at 05:44, Ed Tomlinson wrote:
> 
> > I am editing 6 Megapixel files (2800x2048) and things like rotations seem to 
> > have delays that were not happening with previous kernels.  My box has 320M.
> > Seems that pre11 does not swap out as much as pre10 so Gimp has less to work
> > with.
> 
> Since GIMP uses it's own memory management using a tile approach I
> hardly doubt this is caused by swap usage if you defined the maximum
> amount of memory GIMP should use correctly; though it may be that the
> kernel swaps out tiles that the tilemanager considers to be active (and
> thus in memory) this behaviour should not happen as long as the kernel
> is not to eagerly swapping out memory and considering that the tiles
> are referenced quite often it should not swap them to disc at all IF
> the recently introduced algorithms work correctly.
> 
> Anyhow, just to make sure, would you please mention much memory you
> assigned to GIMP and what else is running on the system?
> 

Also, try a test with pre11 with swap turned off, and see how that affects
your system.

Please note: I am not recommending running without swap under normal
circumstances...