Re: Disk Performance

Erik Andersen (andersen@codepoet.org)
Fri, 9 Nov 2001 15:53:10 -0700

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/
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