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From: Mark Lord <lkml@rtr.ca>
To: Daniel J Blueman <daniel.blueman@gmail.com>
Cc: bzolnier@gmail.com, linux-ide@vger.kernel.org,
	Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: Compact Flash performance...
Date: Wed, 30 May 2007 23:24:32 -0400	[thread overview]
Message-ID: <465E3FF0.9010709@rtr.ca> (raw)
In-Reply-To: <6278d2220705301510y2d81f69eu38fb778d32de05e1@mail.gmail.com>

Daniel J Blueman 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 can I find out if this would be a timing or configuration issue?
> On 2.6.20.5 [2], the 120nS timing looks to be right [3], but perhaps
> no multi-word transfer is hurting here...alas, it can't be enabled
> with the libata subsystem and 'hdparm -m', so what else?

Please post the output from "hdparm --Istdout /dev/sdb" for this card.

Thanks

  parent reply	other threads:[~2007-05-31  3:24 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-30 22:10 Compact Flash performance Daniel J Blueman
2007-05-30 22:31 ` Lee Revell
2007-05-31  9:18   ` Daniel J Blueman
2007-05-30 22:56 ` Bartlomiej Zolnierkiewicz
2007-05-31  3:24 ` Mark Lord [this message]
2007-05-31  9:22   ` Daniel J Blueman
2007-05-31 12:22     ` Mark Lord
2007-05-31 17:25       ` Daniel J Blueman
2007-05-31 20:54         ` Mark Lord
2007-05-31 21:39           ` Daniel J Blueman
2007-05-31 22:33             ` Mark Lord
2007-05-31 22:35               ` Mark Lord
2007-05-31 22:37               ` Jeff Garzik
2007-05-31 22:43                 ` Mark Lord
2007-06-02  5:10                   ` Willy Tarreau
2007-05-31 23:47               ` Daniel J Blueman
2007-05-31 22:40             ` Mark Lord
2007-05-31 23:26               ` Jeff Garzik
     [not found] <fa.XmtWMJk5gwBC00HJh+5O62Vx8eA@ifi.uio.no>
     [not found] ` <fa.fl4+oXGwE5VC39h2DLdFoBUbqV4@ifi.uio.no>
     [not found]   ` <fa.+cW0LouEqSiZ6zrmBDeBJxRjPTg@ifi.uio.no>
     [not found]     ` <fa.PM7erd/Gm1gq8ZshwTBJwux7o6o@ifi.uio.no>
     [not found]       ` <fa.MYVClL+Q9g/jFTcUNWOeysiV0Ig@ifi.uio.no>
     [not found]         ` <fa.Q4zXu+xtMAT5H5vbl/zgxZk/Ivo@ifi.uio.no>
2007-06-01  0:00           ` Robert Hancock

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