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Subject: Re: using the IDE disk cache

Re: using the IDE disk cache

From: Manuel Dejonghe <manuel_at_dejonghe.de>
Date: 2005-11-10

On 11/10/05, Harald Milz <hm@seneca.muc.de> wrote:
> does rockbox use the 2M or 8M cache of the disk? AFAIK one can set a
> readahead so that data is buffered in the cache. This would help a lot in
> terms of saving power, like the 8M cache mod.
>
> I can't find anything like that in the source code (ata.c, methinks).

If I remember correctly, this buffer can not be used (is flushed by
the hard disk itself) as soon as the disk is powered down/spun down.

That would mean that this buffer can only be used by systems faster
than the harddrive, which the archos hardware definitely not is.

lImbus
Received on Thu Nov 10 21:45:16 2005


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