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Re: IDEA: Shortening boot-time



On July 27, 2004 02:56 am, Alan Cox <alan redhat com> wrote:
> On Mon, Jul 26, 2004 at 02:05:40AM -0600, Mark Lane wrote:
> > single drive and could be slower depending on your hardware. Reads could
> > be faster depending on you hardware but twice? Only very highend
> > (expensive) SCSI raid cards do that and only theoretically. Practically
> > you won't get twice the performance.
>
> Linux software raid will do read balancing so you may get better
> performance and you can easily get more than twice with some loads. In most
> setups the PCI bus is the blocker for everything that isnt limited by seek
> rate.

I agree that in certain situations you may get better twice the performance 
may have to do more seeking than two separate drives but on a benchmark test 
like bonnie++ the average is not going to be twice a single drive. And he was 
talking about benchmarks. 

regards,
-- 
Mark Lane, CET mailto:mark harddata com 
Hard Data Ltd. http://www.harddata.com 
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