Re: L1_CACHE_SHIFT value for P4 ?

From: Dave Jones (davej@codemonkey.org.uk)
Date: Thu Nov 21 2002 - 08:30:23 EST

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On Thu, Nov 21, 2002 at 02:25:54PM +0100, Margit Schubert-While wrote:
> Andi,
> L2 cache lines = L2 cache size ?

No.

> This P4 has got 512KB L2 cache.

That 512KB is divided into 'lines' of n bytes.
Where n is the L1_CACHE_SHIFT value. (Or should be).
x86info will tell you the line size. (Its also printk'd at boot up iirc)

Dave

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