On Mon, 11 Aug 2003, Lyle Chapman wrote:
> I posted a message a couple of weeks ago about sluggish HD performance
> on a new computer - it is a 3ghz P4, Gigabyte MB, 1gb ram and 2 brand
> new 80gb Seagate 7200rpm drives.
>
> Even with this setup I am still getting sluggish performance, when I do
> a copy I am getting a burst of 45meg/second then it slowly dwindles
> down to around 20meg/second average but will jump up and down between
> 3.5meg/second and 20meg/second until the end of the copy.
>
> Any ideas anybody as I do a lot of DV editing and it is really
> defeating the purpose of purchasing a new ubeat go faster computer.
I may be out of date here, as this is stuff I remember from about 10 years
ago, but it used to be that as hard drives came under load they would heat
up, and the disk would expand slightly. That would require a
re-callibration process which would stop the drive recording briefly. Not
much of an issue for most system usage, but a substantial issue for
multimedia work. It used to be that there were special drives designed to
avoid this problem. IT could be that's why you're seeing occasional drops
to 3.5M/s
The initial speed burst you see is probably because you're filling up the
cache in your HD controller rather than actually writing to disk.
Andrew
--
No added Sugar. Not tested on animals. May contain traces of Nuts. If
irritation occurs, discontinue use.
-------------------------------------------------------------------
Andrew McNaughton In Sydney
Working on a Product Recommender System
[EMAIL PROTECTED]
Mobile: +61 422 753 792 http://staff.scoop.co.nz/andrew/cv.doc
--
SLUG - Sydney Linux User's Group - http://slug.org.au/
More Info: http://lists.slug.org.au/listinfo/slug
