From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Joris <joris@v5.be>
Cc: Linux IDE <linux-ide@vger.kernel.org>
Subject: Re: ICH7: ata_piix twice as fast as ahci?
Date: Sun, 17 Feb 2008 16:10:33 +0000 [thread overview]
Message-ID: <20080217161033.3bb420fd@core> (raw)
In-Reply-To: <6b9952490802170741h1de9be53nefccea3775f7de00@mail.gmail.com>
On Sun, 17 Feb 2008 16:41:42 +0100
Joris <joris@v5.be> wrote:
> Hello List,
>
> Odd problem on my machines: the sata disks appear to be a lot slower
> when used via ata_piix vs the ahci driver.
I would expect that. AHCI allows the use of NCQ and unloads a ton of work
from the processor. It also means you pretty much avoid the inter command
latency that limits standard IDE performance.
next prev parent reply other threads:[~2008-02-17 16:18 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-17 15:41 ICH7: ata_piix twice as fast as ahci? Joris
2008-02-17 16:10 ` Alan Cox [this message]
2008-02-17 16:39 ` Joris
2008-02-17 17:20 ` Alan Cox
-- strict thread matches above, loose matches on Subject: below --
2008-04-25 3:09 kyle
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