lkml.org 
[lkml]   [2001]   [Dec]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: "Colo[u]rs"
On Sun, 9 Dec 2001, Larry McVoy wrote:

> On Sun, Dec 09, 2001 at 11:21:23PM -0800, David Lang wrote:
> > Larry, I thought that direct mapped caches had full mapping from any cache
> > address to any physical address while the N-way mapped caches were more
> > limited. modern caches are N-way instead of direct mapped becouse it's
> > much more expensive (transistor count wise) for the direct mapped
> > approach.
>
> That's not correct unless they changed terminology without asking my
> permission :-) A direct mapped cache is the same as a 1-way set
> associative cache. It means each cache line has one and only one
> place it can be in the cache. It also means there is only one set
> of tag comparitors, which makes it cheaper and easier to build.
>
> > If I'm mistaken about my termonology (very possible :-) what is the term
> > for what I am refering to as direct mapped?
>
> Fully associative cache, I believe.

Yep, that's it. thanks for the correction.

David Lang
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:14    [W:0.036 / U:0.012 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site