2005-02-05 11:00:46

by Axel Schmalowsky

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Subject: L1_CACHE

Hey,

Can anyone tell me if it is destruktive or does it cause lose of
performance if I set up
L1_CACHE_SHIFT_MAX as well as CONFIG_X86_L1_CACHE_SHIFT to the value of 10?

I've an Intel centrino processor with 1MB L1-Cache.

Thanx in advance

Axel


2005-02-05 14:22:31

by Paolo Ornati

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Subject: Re: L1_CACHE

On Sat, 05 Feb 2005 11:45:22 +0000
Axel Schmalowsky <[email protected]> wrote:

> Can anyone tell me if it is destruktive or does it cause lose of
> performance if I set up
> L1_CACHE_SHIFT_MAX as well as CONFIG_X86_L1_CACHE_SHIFT to the value
> of 10?
>
> I've an Intel centrino processor with 1MB L1-Cache.

1 MB L1?

Isn't it L2?

--
Paolo Ornati
Gentoo Linux (kernel 2.6.10-gentoo-r6)

2005-02-05 21:53:37

by Dave Jones

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Subject: Re: L1_CACHE

On Sat, Feb 05, 2005 at 11:45:22AM +0000, Axel Schmalowsky wrote:
> Hey,
>
> Can anyone tell me if it is destruktive or does it cause lose of
> performance if I set up
> L1_CACHE_SHIFT_MAX as well as CONFIG_X86_L1_CACHE_SHIFT to the value of 10?

This makes no sense. This define is for the cacheline size, not
the total size of the cache.

Dave