From: Jeff Garzik <jgarzik@pobox.com>
To: azarah@gentoo.org
Cc: Catalin BOIE <util@deuroconsult.ro>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
SCSI Mailing List <linux-scsi@vger.kernel.org>,
Vojtech Pavlik <vojtech@suse.cz>
Subject: Re: libata driver update posted
Date: Sat, 19 Jul 2003 16:13:05 -0400 [thread overview]
Message-ID: <3F19A651.2080503@pobox.com> (raw)
In-Reply-To: <1058645294.23174.7.camel@nosferatu.lan>
Martin Schlemmer wrote:
> On Fri, 2003-07-18 at 17:43, Jeff Garzik wrote:
>
> Slower this side. The Maxtor 40GB (ata133) is however just set to
> udma33, where the Seagate 20GB (ata100) driver is set correctly to
> udma100.
Yeah, that's expected: Parallel ATA (PATA) requires cable detection to
go beyond UDMA/33, and my driver doesn't do that yet [since I'm
concentrating on SATA].
> The Seagate start off ok (about 35mb/s), but then after doing some heavy
> disk io, it also just drops to the 20mb/s region.
That's definitely interesting. Is "heavy disk I/O" the hdparm stuff you
described, or something else too?
Jeff
next prev parent reply other threads:[~2003-07-19 19:58 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-17 21:14 libata driver update posted Jeff Garzik
2003-07-18 6:24 ` Catalin BOIE
2003-07-18 13:13 ` Jeff Garzik
2003-07-18 15:39 ` Martin Schlemmer
2003-07-18 15:43 ` Jeff Garzik
2003-07-19 0:30 ` Martin Schlemmer
2003-07-19 0:38 ` Alan Cox
2003-07-19 0:52 ` Martin Schlemmer
2003-07-19 0:45 ` Andre Tomt
2003-07-19 20:08 ` Martin Schlemmer
2003-07-19 20:13 ` Jeff Garzik [this message]
2003-07-19 21:18 ` Martin Schlemmer
2003-07-20 2:27 ` James H. Cloos Jr.
2003-07-20 2:51 ` Jeff Garzik
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