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SubjectRe: [Lse-tech] Re: 10.31 second kernel compile

On Sat, 16 Mar 2002 wrote:
> On Sat, Mar 16, 2002 at 11:16:16AM -0800, Linus Torvalds wrote:
> > Show me a semi-sane architecture that _matters_ from a commercial angle.
> I thought we were into this for the pure technical thrill-)

I don't know about you, but to me the difference between technological
thrill and masturbation is that real technology actually matters to real

I'm not in it for some theoretical good. I want my code to make _sense_.

> > page tables. And I personally like how Hammer looks more than the ia64 VM
> > horror.
> No kidding. But I want TLB load instructions.

TLB load instructions + hardware walking just do not make much sense if
you allow the loaded entries to be victimized.

Of course, you can have a separate "lock this TLB entry that I give you"
thing, which can be useful for real-time, and can also be useful for
having per-CPU data areas.

But then you might as well consider that a BAT register ("block address
translation", ppc has those too), and separate from the TLB.


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