lkml.org 
[lkml]   [2001]   [Jan]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Subtle MM bug
On Fri, Jan 12, 2001 at 09:11:43PM +0000, Russell King wrote:
> Eric W. Biederman writes:
> > Hmm. I would think that increasing the logical page size in the kernel
> > would be the trivial way to handle virtual aliases. (i.e.) with a large
> > enough page size you can't actually have a virtual alias.
>
> There are types of caches out there that no matter how large the page size,
> you will always have alias issues. These are ones where the cache lines
> are indexed independent of virtual address (and therefore can have funny
> cache line replacement algorithms).
>
> And yes, you guessed which processor has it. ;)

I recently spoke with some CPU architecture researcher at some university
about cache architectures; I suspect in the near future we'll see more
funny cache indexing and replacment algorithems ...

Ralf

--
"Embrace, Enhance, Eliminate" - it worked for the pope, it'll work for Bill.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:28    [from the cache]
©2003-2011 Jasper Spaans