Re: [Sheflug] Disk Activity Problems

[Barrie Bremner <xxxxx [at] xxxxxxxxxxxxxxxxx>]

>>>>> "jose" == j l gomez-dans <Jos> writes:

    jose> On Tue, Nov 20, 2001 at 09:09:31AM +0000, Alex Hudson wrote:
    >> On Mon, 2001-11-19 at 23:54, Barrie Bremner wrote: > There are
    >> various warnings of possible data loss if you set things to >
    >> something your drive may dislike
    >> 
    >> Now he tells him :)
    >> 
    >> > For geekiness, you can check how this affects things using >
    >> > hdparm -Tt /dev/hda

    jose> 	Erm... I was quite shocked to read that in the newer
    jose> kernels, hdparm doesn't produce incredible results, as the
    jose> new IDE driver autotunes to get the best performance. There
    jose> was a message in ucol last week, and some information can be
    jose> found in here:
    jose> <http://groups.google.com/groups?q=uk.comp.os.linux+hdparm&hl=en&rnum=3&selm=slrn9uueas.95j.mperry%40mperry.lnxpowered.org>

    jose> 	Any de-bunking of this post? My personal experience is
    jose> that of late, hdparm $OPTIONS didn't improve throughput
    jose> (spelling?) that much (by the looks of hdparm -tT /dev/hdX).


You're right, although on my system, it doesn't enable 32-bit I/O
support and it doesn't always turn on DMA unless you set the 'use DMA
when available' option in the kernel config.

Cheers.

Baz.

-- 
Barrie J. Bremner		OpenPGP public key ID: F78CEE08
baz [at] barriebremner.com	http://barriebremner.com/


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