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
next prev parent 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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