From: Robert Hancock <hancockrwd@gmail.com>
To: "Dâniel Fraga" <fragabr@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, linux-ide@vger.kernel.org
Subject: Re: ICH10 not working with AHCI kernel option
Date: Thu, 08 Apr 2010 17:54:14 -0600 [thread overview]
Message-ID: <4BBE6CA6.1010808@gmail.com> (raw)
In-Reply-To: <4bbde4f7.1702be0a.5f6c.028e@mx.google.com>
On 04/08/2010 08:15 AM, Dâniel Fraga wrote:
> On Thu, 8 Apr 2010 15:09:20 +0100
> Alan Cox<alan@lxorguk.ukuu.org.uk> wrote:
>
>> Yes
>
> Ok, problem solved. You're right, the BIOS option was wrong.
> The problem is that it's called "RAID mode" and I found it not
> intuitive since I don't use RAID (so I didn't touch it). I changed it
> from IDE to AHCI and it worked.
>
> So just a quick and last question. I read here the following:
>
> http://forum-en.msi.com/index.php?topic=106575.120
>
> "AHCI is a native SATA Mode. There is not necessarely a major
> performance difference between IDE/Legacy Mode and AHCI Mode".
>
> Of course this guy is talking about Windows, but can it be
> applied to Linux too? I mean, does AHCI offers no significant
> performance improvement over SFF/Legacy mode?
Depends on a lot of things, and what you mean by "significant". You
don't get NCQ in legacy mode, and you also don't get 64-bit DMA support,
which gets more significant the more RAM you have.
next prev parent reply other threads:[~2010-04-08 23:54 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-08 13:36 ICH10 not working with AHCI kernel option Dâniel Fraga
2010-04-08 13:45 ` Alan Cox
2010-04-08 13:46 ` Dâniel Fraga
2010-04-08 13:59 ` Alan Cox
2010-04-08 14:02 ` Dâniel Fraga
2010-04-08 14:09 ` Alan Cox
2010-04-08 14:15 ` Dâniel Fraga
2010-04-08 23:54 ` Robert Hancock [this message]
2010-04-09 2:00 ` Dâniel Fraga
2010-04-09 2:09 ` Robert Hancock
2010-04-09 2:22 ` Dâniel Fraga
2010-04-09 2:52 ` Robert Hancock
2010-04-09 3:16 ` Dâniel Fraga
2010-04-09 10:12 ` Tim Small
2010-04-09 14:47 ` Robert Hancock
2010-04-09 15:07 ` Alan Cox
2010-04-09 16:37 ` Tim Small
2010-04-09 18:53 ` Alan Cox
2010-04-09 23:04 ` Robert Hancock
2010-04-09 4:28 ` Jeff Garzik
2010-04-09 9:16 ` Alan Cox
2010-04-09 9:08 ` Alan Cox
2010-04-09 9:12 ` Dâniel Fraga
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