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Date: Fri, 1 Mar 2002 23:16:39 -0700
From: "Jeff V. Merkey" <jmerkey@vger.timpanogas.org>
To: Mike Anderson <andmike@us.ibm.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: queue_nr_requests needs to be selective
Message-ID: <20020301231639.A14413@vger.timpanogas.org>
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In-Reply-To: <20020301230142.B14239@vger.timpanogas.org>; from jmerkey@vger.timpanogas.org on Fri, Mar 01, 2002 at 11:01:42PM -0700
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On Fri, Mar 01, 2002 at 11:01:42PM -0700, Jeff V. Merkey wrote:
> On Fri, Mar 01, 2002 at 10:59:18PM -0700, Jeff V. Merkey wrote:
> > 
> > 
> > Mike,
> > 
> > Here are some numbers from the running system.  This system is 
> > running at 120 MB/S 

Mike,

Also, I've had a single adapter above 150 MB/S.  This test I am running
was to test this 15 queue depth issue, so I took the system down 
to a single adapter for the test so I could get the stats you raised the 
issue about.

Jeff


on a single 3Ware adapter.  Stats attached.  You
> > will note that the max commands hitting the adapter are way above
> > 15.  I can only presume this is due to caching behavior on the card.
> > I do have these cards enabled with caching.  I have had these numbers
> > as high as 319 MB/S with multiple cards in separate buses.  The system
> > this test is running on has 3 PCI buses.  2 x 33 Mhz and 1 x 66 Mhz.  
> > with Serverwork HE Chipset.
> > 
-
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