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From: Tejun Heo <tj@kernel.org>
To: Grant Grundler <grundler@google.com>
Cc: Pierre Ossman <drzeus-list@drzeus.cx>,
	Jeff Garzik <jgarzik@pobox.com>,
	linux-ide@vger.kernel.org
Subject: Re: How to determine performance bottleneck?
Date: Wed, 15 Oct 2008 02:19:25 +0900	[thread overview]
Message-ID: <48F4D49D.3050602@kernel.org> (raw)
In-Reply-To: <da824cf30810140929o4b82f69fs9a826ef880d3f462@mail.gmail.com>

Grant Grundler wrote:
> On Mon, Oct 13, 2008 at 4:25 PM, Tejun Heo <tj@kernel.org> wrote:
> ...
>>> Tejun, what kind of throughput have you seen when you have been testing
>>> the sil3132 and multipliers?
>> That's the limit of sil3124/3132.  Dunno why but you can't go over that.
> 
> To be clear, I understood "that" ==  ~100 MB/s

It's somewhere around that.  I don't remember the exact number at the
moment.

>>  There's 3132-2 chip on the market.  Maybe it's worth a try?
> 
> Are you possibly thinking of 3124-2 ? (4-port PCI-X device, not PCI-e)
> 
> I didn't see mention of 3132-2 on
> http://www.siliconimage.com/products/product.aspx?id=32

I asked SIMG about the issue and whether they have newer revisions which
solve the issue.  When I know more, I'll post it on the ata wiki page.

Thanks.

-- 
tejun

  reply	other threads:[~2008-10-14 17:21 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-13 18:28 How to determine performance bottleneck? Pierre Ossman
2008-10-13 20:12 ` Alan Cox
2008-10-14  5:22   ` Pierre Ossman
2008-10-13 23:25 ` Tejun Heo
2008-10-14  5:07   ` Pierre Ossman
2008-10-14  5:37     ` Tejun Heo
2008-10-14  6:03       ` Pierre Ossman
2008-10-14  6:12         ` Tejun Heo
2008-10-14  6:59           ` Pierre Ossman
2008-10-14  7:00             ` Tejun Heo
2008-10-14 16:29   ` Grant Grundler
2008-10-14 17:19     ` Tejun Heo [this message]
2008-10-14 17:43       ` Grant Grundler

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