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Message-ID: <6278d2220705310218x2736f652wb8d17095a9a82e6f@mail.gmail.com> Date: Thu, 31 May 2007 10:18:48 +0100 From: "Daniel J Blueman" <daniel.blueman@...il.com> To: "Lee Revell" <rlrevell@...-job.com> Cc: bzolnier@...il.com, linux-ide@...r.kernel.org, "Linux Kernel" <linux-kernel@...r.kernel.org>, "Jeff Garzik" <jeff@...zik.org>, "Alan Cox" <alan@...rguk.ukuu.org.uk> Subject: Re: Compact Flash performance... On 30/05/07, Lee Revell <rlrevell@...-job.com> wrote: > On 5/30/07, Daniel J Blueman <daniel.blueman@...il.com> wrote: > > I have a SanDisk Extreme IV 4GB CF card, capable of 40MB/s read, but > > am seeing 30MB/s read [1], connected directly to the IDE bus on my > > ICH8 controller. > > How do you know it's capable of 40MB/s read? Hi Lee, There are various reports of users getting 40MB/s == 38.1MiB/s with UDMA mode 6 media readers (which are few and far between): http://www.robgalbraith.com/bins/content_page.asp?cid=7-7896-8475 http://www.it-enquirer.com/media/screenshots/sandisk-extreme-bench.png If a particular reader is able to get 40MB/s through the CF interface, then this most likely will be achievable with ICH8+Linux also, but perhaps parameters need to be tuned or the right IDE configuration needs to be reached etc. > Lee -- Daniel J Blueman - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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