Re: First benchmarks of the ext4 file system

From: Linux Portal
Date: Sun Oct 22 2006 - 08:47:19 EST


On 10/22/06, Andrew Morton <akpm@xxxxxxxx> wrote:
On Sun, 22 Oct 2006 01:57:36 +0200
"Linux Portal" <linportal@xxxxxxxxx> 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



Yeah, and because of this: "Although this doesn't seem to make much
difference with ext3" which is what I observed, too, in some other
benchmarks.
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