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Message-ID: <58cb370e0507041251dd5a@mail.gmail.com>
Date: Mon, 4 Jul 2005 21:51:45 +0200
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Reply-To: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: Ondrej Zary <linux@rainbow-software.org>
Subject: Re: [git patches] IDE update
Cc: Al Boldi <a1426z@gawab.com>, Linus Torvalds <torvalds@osdl.org>,
       linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
In-Reply-To: <42C9742E.8000204@rainbow-software.org>
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On 7/4/05, Ondrej Zary <linux@rainbow-software.org> wrote:
> Al Boldi wrote:
> > Bartlomiej Zolnierkiewicz wrote: {
> >
> >>On 7/4/05, Al Boldi <a1426z@gawab.com> wrote:
> >>Hdparm -tT gives 38mb/s in 2.4.31
> >>Cat /dev/hda > /dev/null gives 2% user 33% sys 65% idle
> >>
> >>Hdparm -tT gives 28mb/s in 2.6.12
> >>Cat /dev/hda > /dev/null gives 2% user 25% sys 0% idle 73% IOWAIT
> >>
> >>It feels like DMA is not being applied properly in 2.6.12.
> >
> >
> > Are earlier 2.6.x kernels okay?
> >
> > dmesg output?
> > }
> >
> > Same on 2.6.10,11,12.
> > No errors though, only sluggish system.

What about earlier kernels?

Please try to narrow down the problem to a specific kernel version.

> Something like this http://lkml.org/lkml/2005/6/13/1 ?

It doesn't seem like IDE regression but...

Bartlomiej