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Date: Tue, 12 Feb 2013 16:16:49 +0100
From: Kaspar Schleiser <kaspar@schleiser.de>
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To: linux-btrfs@vger.kernel.org
CC: Chris Mason <chris.mason@fusionio.com>
Subject: Re: experimental raid5/6 code in git
References: <20130202160212.GB4694@shiny>
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Hey Chris,

On 02/02/2013 05:02 PM, Chris Mason wrote:
> Btrfs -- 604MB/s
> MD    -- 162MB/s
> 
> 
> MD -- 800MB/s very little system time
> Btrfs -- 3.8GB/s one CPU mostly pegged

> Btrfs -- 380MB/s seen by fio
> MD    -- 174MB/s seen by fio

> Creating 12 million files on Btrfs raid5 took 226 seconds, vs 485
> seconds on MD.

Do I read these numbers incorrectly, or does even this first iteration
of btrfs' raid5/6 code run circles around MD?

Thanks for all the work!

Kaspar