Re: [gentoo-dev] Optimizing performance

[Wernfried Haas <amne@gentoo.org>]

On Thu, Dec 15, 2005 at 09:13:34AM -0500, Chris Gianelloni wrote:
> CFQ is much worse for a desktop system.  I tend to like deadline for
> playing games.  These can probably make a bit more difference than a new
> -fomg-itsofast-and-broken-math added to CFLAGS.

That's funny, i switched from default to CFQ on my notebook which has
a rather slow disk and it feels much better, especially when
recovering from suspend to disk which swaps out a lot. It's possible
it decreases overall performance, but it may feel faster sometimes.

> There was a tip in the GWN about
> turning on dir_index on an already formatted file system.  If formatting
> a new one, just use mkfs.ext2 -J -O dir_index /dev/$whatever to create
> your file system.

Good thing you remind me of that. As a new ext3 convert (i happily
used reiser3 for years before), any problems to be expected by doing
so? Afaics it turns on B-trees which should have no impact on the
safety of my data, right? Just want to make sure, i rather use a
slightly slower file system than risking data loss.

cheers,
	Wernfried

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Wernfried Haas (amne) - amne at gentoo dot org
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