Re: L1_CACHE_SHIFT value for P4 ?

Dave Jones (davej@codemonkey.org.uk)
Thu, 21 Nov 2002 13:23:02 +0000

On Thu, Nov 21, 2002 at 02:10:02PM +0100, Andi Kleen wrote:

> The P4 has 128byte L2 cache lines (2^7). The L1 apparently has smaller lines.

Not mine:

L2 unified cache:
Size: 512KB Sectored, 8-way associative.
line size=64 bytes.

Someone (Manfred?) pointed out a chapter in the P4 system programmer guide about
this last time I brought it up. I forget the reasoning, I'll see if I can dig it out..

Dave

-- 
| Dave Jones.        http://www.codemonkey.org.uk
| SuSE Labs
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