On 2003-04-02T14:19:46,
Vladimir Milovanovic <vlad@webmail.co.za> said:
> Wow... I hope that one of the maintainers will comment on this, I didn't
> even know that XP had a sw RAID implementation. Up to 100% more on read
> and 60% more on write is quite a significant margin. Is there anything
> in favour of the md driver if this is true?
I've not really checked these numbers yet, so take the following with a grain
of salt.
However, with RAID1 for example, I got approximately twice the read speed and
95% of the write speed (compared to just using a single disk).
I have a really hard time imagining a 100% read boost; that would simply
exceed disk bandwidth, and 60% writes - how should that work?
I'm not claiming md is perfect or the fastest imaginable solution, but it is
rather close to theoretical disk bandwidth. A two digit percentage performance
improvement just can't be done.
Sincerely,
Lars Marowsky-Brée <lmb@suse.de>
--
SuSE Labs - Research & Development, SuSE Linux AG
"If anything can go wrong, it will." "Chance favors the prepared (mind)."
-- Capt. Edward A. Murphy -- Louis Pasteur
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