Re: Too Slow - what'd I break?

["Daniel L. Miller" <dmiller@amfes.com>]

Roberto Sanchez wrote:
> Daniel L. Miller wrote:
>
> > Howdy all.
> >
> > I've converted a Pentium II-350mhz w/ 128M RAM workstation from 
> > Windoze to Debian.  Unfortunately, it seems that many operations are 
> > far slower - especially disk access.  I've pasted the output of 
> > <dmesg> below.  I do see some error messages regarding VFS mounts.  I 
> > also see errors regarding <devfs> mounts during bootup that are not 
> > shown in the <dmesg> output - I'd also appreciate knowing what these 
> > bootup messages are indicating and how to fix 'em.
> >
> > This is using the latest unstable kernel-image-2.4-686 package, as 
> > well as the lowlatency and preempt patches.
>
>
> Have you enabled DMA on your disk?
>
> Use hdparm (install via apt-get if you don't have it) and try
> something like:
>
> hdparm -c1 -m16 -d1 -u1 /dev/hda
>
> However, carefully read the documentation.  I believe that in most
> cases DMA is disabled by default becuase some drive/chipset combos
> are buggy, which can cause severe corruption of data if DMA is
> enabled.
>
> -Roberto

Using hdparm in "get" mode, I found my settings were:
c0 m32 d1 u0

I set c1 and u1 - and I have done this step before.  I've tried the -k 
flag - but it doesn't remember these settings between reboots.  Or am I 
using this wrong, and I need to execute hdparm at each boot?

I don't really see a difference after these settings - is there 
something else I need to do?  And should drop from m32 to m16?

Daniel