From: Kaspar Schleiser <kaspar@schleiser.de>
To: linux-btrfs@vger.kernel.org
Cc: Chris Mason <chris.mason@fusionio.com>
Subject: Re: experimental raid5/6 code in git
Date: Tue, 12 Feb 2013 16:16:49 +0100 [thread overview]
Message-ID: <511A5CE1.60309@schleiser.de> (raw)
In-Reply-To: <20130202160212.GB4694@shiny>
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
next prev parent reply other threads:[~2013-02-12 15:24 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-02 16:02 experimental raid5/6 code in git Chris Mason
2013-02-03 17:33 ` Hendrik Friedel
2013-02-04 21:42 ` H. Peter Anvin
2013-02-05 1:23 ` Chris Mason
2013-02-05 2:26 ` H. Peter Anvin
2013-02-05 2:59 ` Gareth Pye
2013-02-05 5:29 ` Chester
2013-02-05 6:10 ` Gareth Pye
2013-02-05 14:22 ` Tomasz Torcz
2013-02-05 18:32 ` Chris Mason
[not found] ` <CAM_ZMPCAcKtOH4UapR8HbSN6Woi7Lh7mqy+e14TDY+8tM386iQ@mail.gmail.com>
2013-02-11 15:13 ` Chris Mason
2013-02-12 15:16 ` Kaspar Schleiser [this message]
2013-02-12 15:30 ` Chris Mason
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