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Rep:Re: Rep:Rep:Re: [f-cpu] little feed-back from the libre softawre
- To: <f-cpu@seul.org>
- Subject: Rep:Re: Rep:Rep:Re: [f-cpu] little feed-back from the libre softawre
- From: "Nicolas Boulay" <nicolas.boulay@ifrance.com>
- Date: Tue, 16 Jul 2002 07:24:39 GMT
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- Delivery-Date: Tue, 16 Jul 2002 03:24:47 -0400
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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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