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Subject: Re: amiconn: firmware/drivers ata.c,1.115,1.116
From: Joseph Jones (joe_at_bumpycarrot.cjb.net)
Date: 2004-07-05


Okay, I didn't think about spin-up etc. when I was thinking about it :)

Joe

Jens Arnold wrote:
> Hello Joseph
>
>
>>Is this likely to improve battery runtime? To a simple luser
>>like me "approx. 2 times as fast" spell "approx. 2 times
>>battery life" ;)
>
>
> It approximately doubles the speed of disk reading and writing,
> so all disk operations profit from it, both those that impact
> the "visible" performance of Rockbox (faster directory browsing,
> forward/ backward skipping, loading of voice file) and those
> that are usually (almost) invisible (loading the next chunk of
> data when playing, saving the data chunks when recording).
>
> Since this lowers the disk's runtime for all these operations,
> it does also increase battery runtime, but not by a factor of 2,
> since (1) disk reading/ writing is not the only factor affecting
> the disk runtime (spinup time and idle poweroff setting are
> others) and (2) the disk is not the only power consuming part in
> the Archos. I'd expect a few percent increase in runtime.
>
> Imho the primary benefit is the improved performance, not the
> increased battery rutime.
>
> Regards, Jens
>
> _______________________________________________
> http://cool.haxx.se/mailman/listinfo/rockbox
>
>
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