Article: ISSCC 2006: Intel Tulsa
By: Linus Torvalds (torvalds.delete@this.osdl.org), February 21, 2006 10:10 am
Room: Moderated Discussions
Michael S (already5chosen@yahoo.com) on 2/21/06 wrote:
>
>It should be rather complex to build inclusive cache that
>has to stay in synch with not one, not two, but SIX inner
>caches!
Why would that be complex? I think the Intel L2 is already
inclusive, and so the L3 can totally ignore the L1 I/D side
entirely. So there are just two inner caches that it needs
to worry about.
And the L3 would have to be inclusive if you want all the
coherency logic to be there, and not have to worry about
snooping the L2. Makes perfect sense to me.
Or am I missing something?
Linus
>
>It should be rather complex to build inclusive cache that
>has to stay in synch with not one, not two, but SIX inner
>caches!
Why would that be complex? I think the Intel L2 is already
inclusive, and so the L3 can totally ignore the L1 I/D side
entirely. So there are just two inner caches that it needs
to worry about.
And the L3 would have to be inclusive if you want all the
coherency logic to be there, and not have to worry about
snooping the L2. Makes perfect sense to me.
Or am I missing something?
Linus
Topic | Posted By | Date |
---|---|---|
Intel Tulsa Coverage from ISSCC | David Kanter | 2006/02/21 02:45 AM |
Intel Tulsa Coverage from ISSCC | Alberto | 2006/02/21 04:43 AM |
Intel Tulsa Coverage from ISSCC | Paul DeMone | 2006/02/21 06:52 AM |
Inclusive L3? Wow | Michael S | 2006/02/21 04:51 AM |
Inclusive L3? Wow | Wouter Tinus | 2006/02/21 07:06 AM |
Inclusive L3? Wow | Michael S | 2006/02/21 08:20 AM |
Inclusive L3? Wow | slim | 2006/02/21 11:40 AM |
It is? | anonymous | 2006/02/21 09:57 AM |
Inclusive L3? Wow | Linus Torvalds | 2006/02/21 10:10 AM |
Inclusive L3? Wow | Michael S | 2006/02/21 11:03 AM |
Inclusive L3? Wow | Linus Torvalds | 2006/02/21 11:52 AM |
Inclusive L3? Wow | Eric Bron | 2006/02/22 06:39 AM |
Inclusive L3 | David Kanter | 2006/02/22 12:16 PM |
Inclusive L3 | Eric Bron | 2006/02/22 01:00 PM |