linux-kernel - Re: First benchmarks of the ext4 file system

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Message-Id: <20061021234923.defbfb1f.akpm@osdl.org>
Date:	Sat, 21 Oct 2006 23:49:23 -0700
From:	Andrew Morton <akpm@...l.org>
To:	"Linux Portal" <linportal@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: First benchmarks of the ext4 file system

On Sun, 22 Oct 2006 01:57:36 +0200
"Linux Portal" <linportal@...il.com> wrote:

> ext4 is 20 percent faster writer than ext3 or reiser4, probably thanks
> to extents and delayed allocation. On other tests it is either
> slightly faster or slightly slower. reiser4 comes as a nice surprise,
> winning few benchmarks. Both are very stable, no errors during
> testing.
> 
> http://linux.inet.hr/first_benchmarks_of_the_ext4_file_system.html

ext4 doesn't implement delayed allocation (yet).

I made some observations regarding comparative benchmarking of filesystems
when releasing 2.6.19-rc1-mm1.  They seem to have been ignored ;)  See

ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.19-rc1/2.6.19-rc1-mm1/announce.txt

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