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Date: Wed, 17 Apr 2013 08:55:06 +0200
From: Sander <sander@humilis.net>
To: Matt Pursley <mpursley@gmail.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: One random read streaming is fast (~1200MB/s), but two or more
 are slower (~750MB/s)?
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Matt Pursley wrote (ao):
> I have an LSI HBA card (LSI SAS 9207-8i) with 12 7200rpm SAS drives
> attached.  When it's formated with mdraid6+ext4 I get about 1200MB/s
> for multiple streaming random reads with iozone.  With btrfs in
> 3.9.0-rc4 I can also get about 1200MB/s, but only with one stream at a
> time.

Just curious, is that btrfs on top of mdraid6, or is this experimental
btrfs raid6 without md?