linux-kernel - Re: [RFT][PATCH v7] sata

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Date:	Wed, 18 Jul 2007 12:23:51 +0300
From:	Pasi Kärkkäinen <pasik@....fi>
To:	dean gaudet <dean@...tic.org>
Cc:	Jeff Garzik <jeff@...zik.org>, linux-ide@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>, dave@...dillows.org
Subject: Re: [RFT][PATCH v7] sata_mv: convert to new EH

On Thu, Jul 12, 2007 at 07:15:26PM -0700, dean gaudet wrote:
> On Thu, 12 Jul 2007, Jeff Garzik wrote:
> 
> > dean gaudet wrote:
> > > On Thu, 12 Jul 2007, Jeff Garzik wrote:
> > > 
> > > > dean gaudet wrote:
> > > > > oh very nice... no warnings on boot, and no warnings while i "dd
> > > > > if=/dev/sdX
> > > > > of=/dev/null" and i'm seeing 74MB/s+ from each disk on this simple read
> > > > > test.
> > > > > 
> > > > > for lack of a better test i started an untar/diff stress test on the
> > > > > disks... we'll see how it goes.  (it's based on doug ledford's
> > > > > memtest.sh)
> > > > Thanks for the testing.  Looks like we might have hit on something good...
> > > 
> > > yep this does look good.  no problems overnight in the untar/diff/rm
> > > workload.  if you've got any other workload you'd like me to throw at it,
> > > let me know.  i might be able to scare up a disk or two with errors to check
> > > error handling.
> > 
> > Nothing specific.  I usually just throw various workloads at it, both
> > throughput-intensive, seek-intensive, multiple threads at the same time,
> > stressing multiple disks at the same time, etc.
> 
> yeah the untar/diff/rm workload is seek/thread intensive.
> 
> 
> > I presume from your past messages your tests include multiple disks at the
> > same time?
> 
> yep, 4 disks... i was getting 4x74MB/s with dd read.  unfortunately i 
> don't have more disks in the system at this point so i can't test all 8 
> ports at full tilt.
> 
> each disk had its own XFS filesystem.
> 

Hi!

What brand/model your sata_mv controller is? Would be nice to know to be
able to get a "known-to-work" one.. 

-- Pasi
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