linux-kernel - Re: SATA Performance with Intel ICH6

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20061128104351.1bc34eee@localhost.localdomain>
Date:	Tue, 28 Nov 2006 10:43:51 +0000
From:	Alan <alan@...rguk.ukuu.org.uk>
To:	"Martin A. Fink" <fink@....mpg.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: SATA Performance with Intel ICH6

On Tue, 28 Nov 2006 11:09:47 +0100
"Martin A. Fink" <fink@....mpg.de> wrote:

> 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 ?

According to the docs

	ICH6
	ICH6M
	ICH7
	ICH7M
	ICH7R
	ESB2
	ICH7-M DH
	ICH8
	ICH8M

These devices support both "legacy" and "ahci" modes of operation,
usually controlled by a BIOS setting.
-
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/