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Rep:Re: Rep:Rep:Re: [f-cpu] little feed-back from the libre softawre



Good question !

I believe that tiny, large and hudge page are mostly for data and medium
size page for code. With an execption : the linux kernel use a 4 Mb page
to avoid miss.

nicO

-----Message d'origine-----
De: Ben Franchuk <bfranchuk@jetnet.ab.ca>
A: f-cpu@seul.org
Date: 16/07/02
Objet: Re: Rep:Rep:Re: [f-cpu] little feed-back from the libre softawre


> There's no need to check the TLB on every instruction fetch. The
> virtual->physical mapping remains valid until we leave the page or the
> TLB entry is changed or invalidated - and that will be rather rare if
> the compiler generates good code.
> 

But need the TLB sizes be the same size for code and data?
-- 
Ben Franchuk - Dawn * 12/24 bit cpu *
www.jetnet.ab.ca/users/bfranchuk/index.html

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