Re: rpcc

["Wes Bauske" <wsb@xxxxxxxxxxxxxxxx>]

Richard Henderson wrote:
> 
> On Tue, Jan 12, 1999 at 04:59:00PM +0000, Christoph Dworzak wrote:
> > > (2) page colouring.  this affects the efficiency of the caches.
> > >     there is no way under linux to control your page colour.
> >
> > What is page colouring? Could you explain this or do you
> > know where I can read about it?
> 
> It should be found in most operating system or system architecture
> textbooks, in the location in which they talk about memory caches.
> 
> Caches work by indexing off the middle bits of an address, also
> referred to as the address' `colour'.  The exact range of middle bits
> has to do with the cache line size on the low end, and the size of
> the cache / set associativeness of the cache on the high end.
> 
>

I agree with your description except for one point.
What I've read about other systems is that it is the
virtual address that drives your cache location, not
your physical page address. Are you saying under Linux
or in general it is the physical page address?


Wes

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