next-gen mapping
Adam 'WeirdArms' Wiggins
awiggins at cse.unsw.edu.au
Wed Jan 6 21:41:35 CET 1999
On 6 Jan 1999, Michael Hohmuth wrote:
> "Adam 'WeirdArms' Wiggins" <awiggins at cse.unsw.edu.au> writes:
>
> > Can anyone explain whats different/new about the planned
> > next-generation mapping tree for fiasco? I'd appreciate a detailed
> > explination if anyones got the time.
>
> The new thing about the new mapping database is that its data
> structures are much smaller. It uses compact linear arrays of fixed
> sizes, instead of elements linked in binary trees, to store the
> mapping trees for a given physical page frame.
Would an assembler based L4 benifit from this new mapping tree
data base too? It certainly sounds easier to handle memory for. I'm trying
to work out my dynamic data structures now. So far i have TCB's (512
bytes), 1st level page table entries 16K, 2nd level page table entries 1K,
mapping tree nodes ??? no idea yet. I got Lukas's paper but i failed
german in my high school years :( I'm trying to get it translated. It
there any code somewhere i can look at which would illistraight it? Or
does lukas have the time to give me an english run down?
Cheers Adam
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