From: Erik Andersen <andersen@codepoet.org>
To: Rik van Riel <riel@conectiva.com.br>
Cc: Ben Israel <ben@genesis-one.com>, linux-kernel@vger.kernel.org
Subject: Re: Disk Performance
Date: Fri, 9 Nov 2001 15:53:10 -0700 [thread overview]
Message-ID: <20011109155309.A14308@codepoet.org> (raw)
In-Reply-To: <000201c16963$365e19e0$5101a8c0@pbc.adelphia.net> <Pine.LNX.4.33L.0111092030470.2963-100000@imladris.surriel.com>
In-Reply-To: <Pine.LNX.4.33L.0111092030470.2963-100000@imladris.surriel.com>
On Fri Nov 09, 2001 at 08:31:32PM -0200, Rik van Riel wrote:
> On Fri, 9 Nov 2001, Ben Israel wrote:
>
> > Why does my 40 Megabyte per second IDE drive, transfer files at best
> > at 1-2 Megabytes per second?
>
> Sounds like you're not using IDE DMA:
>
> # hdparm -d1 /dev/hda
>
> (not enabled by default because it corrupts data with some
> old chipsets and/or disks)
But wouldn't it make more sense to enable DMA by default, except
for a set of blacklisted chipsets, rather then disabling it for
everybody just because some older chipsets are crap?
-Erik
--
Erik B. Andersen http://codepoet-consulting.com/
--This message was written using 73% post-consumer electrons--
next prev parent reply other threads:[~2001-11-09 22:53 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-09 21:04 Disk Performance Ben Israel
2001-11-09 22:31 ` Rik van Riel
2001-11-09 22:53 ` Erik Andersen [this message]
2001-11-09 22:57 ` Rik van Riel
2001-11-09 23:20 ` Erik Andersen
2001-11-09 23:45 ` Matthias Schniedermeyer
2001-11-11 19:24 ` Maxwell Spangler
2001-11-11 21:52 ` Andre Hedrick
2001-11-11 20:56 ` Maxwell Spangler
2001-11-11 22:17 ` Andre Hedrick
2001-11-12 6:02 ` Erik Andersen
2001-11-09 23:24 ` Alan Cox
2001-11-09 22:35 ` Doug McNaught
2001-11-09 23:33 ` Stefan Smietanowski
2001-11-09 23:50 ` Ben Greear
-- strict thread matches above, loose matches on Subject: below --
2001-11-10 1:21 Torrey Hoffman
2001-11-10 16:47 ` Davidovac Zoran
2001-11-10 17:51 ` Erik Andersen
[not found] <fa.jmrptbv.1dh8ur1@ifi.uio.no>
2001-11-10 8:03 ` Dan Maas
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