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From: "Martin A. Fink" <fink@mpe.mpg.de>
To: Alan <alan@lxorguk.ukuu.org.uk>, linux-kernel@vger.kernel.org
Subject: Re: SATA Performance with Intel ICH6
Date: Tue, 28 Nov 2006 11:09:47 +0100	[thread overview]
Message-ID: <200611281109.47438.fink@mpe.mpg.de> (raw)

Dear Alan,

You wrote
> The PIIX interface needs CPU intervention each command, so in practice
> about every 64K or so, and the CPU gets stalled waiting for the disk
> during the setup of each I/O. The newer kernels support AHCI which does
> not have this overhead, but it is only present on the newest intel
> controllers.

Can you tell me the name of these newest controllers? Is it ICH7 or 8 ?
What kernel versions? dmesg only shows ACPI and u/e/o hci_* host controller.
(kernel version is 2.6.8-24.25-smp). How can I switch to AHCI ?

Thank you very much,

Martin

             reply	other threads:[~2006-11-28 10:10 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-11-28 10:09 Martin A. Fink [this message]
2006-11-28 10:43 ` Alan
  -- strict thread matches above, loose matches on Subject: below --
2006-11-24 14:30 Daniel J Blueman
2006-11-24 13:07 Martin A. Fink
2006-11-24 13:33 ` Alan
2006-11-24 14:10   ` Martin A. Fink
2006-11-24 14:30     ` Alan
2006-11-24 14:54       ` Martin A. Fink
2006-11-25 19:23     ` Andrew Morton
2006-11-24 14:05 ` Ed Sweetman
2006-11-24 22:10 ` J.A. Magallón

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