From: Joe Landman <joe.landman@gmail.com>
To: David Brown <david.brown@hesbynett.no>
Cc: linux-raid@vger.kernel.org
Subject: Re: Triple-parity raid6
Date: Sat, 11 Jun 2011 11:05:08 -0400 [thread overview]
Message-ID: <4DF38424.1010500@gmail.com> (raw)
In-Reply-To: <isvvhi$2vf$1@dough.gmane.org>
On 06/11/2011 10:53 AM, David Brown wrote:
> Yes - we've already established that the implementation will be
> possible, and that there are people willing and able to help with it.
> And I believe that much of the optimisation can be handled by the
> compiler - gcc has come a long way since raid6 was first implemented in
> mdraid.
Hmmm ... don't be too overly reliant upon optimization from a compiler
for your performance. It makes sense to have a well designed (and
proven correct) algorithm first that is hand optimizable. There are
many designs which are anathema to performance, and you have to be
careful to avoid using them in your coding.
We are interested in working on this capability (and more generic
capability) as well.
Is anyone in particular starting to design/code this? Please let me know.
--
Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics, Inc.
email: landman@scalableinformatics.com
web : http://scalableinformatics.com
http://scalableinformatics.com/sicluster
phone: +1 734 786 8423 x121
fax : +1 866 888 3112
cell : +1 734 612 4615
next prev parent reply other threads:[~2011-06-11 15:05 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-09 0:01 Triple-parity raid6 David Brown
2011-06-09 1:49 ` NeilBrown
2011-06-09 11:32 ` David Brown
2011-06-09 12:04 ` NeilBrown
2011-06-09 19:19 ` David Brown
2011-06-10 3:22 ` Namhyung Kim
2011-06-10 8:45 ` David Brown
2011-06-10 12:20 ` Christoph Dittmann
2011-06-10 14:28 ` David Brown
2011-06-11 10:13 ` Piergiorgio Sartor
2011-06-11 11:51 ` David Brown
2011-06-11 13:18 ` Piergiorgio Sartor
2011-06-11 14:53 ` David Brown
2011-06-11 15:05 ` Joe Landman [this message]
2011-06-11 16:31 ` David Brown
2011-06-11 16:57 ` Joe Landman
2011-06-12 9:05 ` David Brown
2011-06-11 17:14 ` Joe Landman
2011-06-11 18:05 ` David Brown
2011-06-10 9:03 ` David Brown
2011-06-10 13:56 ` Bill Davidsen
2011-06-09 22:42 ` David Brown
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