Re: Memory Management - BSD vs Linux

Benjamin Saller Bender (case@loki.appliedtheory.com)
Mon, 11 Aug 1997 08:46:21 -0400

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Ingo Molnar <mailto:mingo@pc7537.hil.siemens.at> writes:
>> The SLAB allocator. (See the Bonwick '94 paper, published in the 1994 B
oston
>> Usenix proceedings).
>
>it's SLAB _ontop_ of the Buddy system. Also, user-pages (obviously) are
>allocated via Buddy. The SLAB cannot live 'alone', it needs a page
>allocator to create those 'slabs'.

Unless someone else has looked into this, I am playing with some ideas
about how to make the SLAB ride on top of Guarded Page Tables with software
enforced page sizes as low as 16 bytes. A variable page size impl that deals
well with a sparse address space (as for the 64bit ports) lends itself even
better to the SLAB than the buddy system methinks.

-- 
Benjamin Saller Bender 			<case@AppliedTheory.com>
AppliedTheory Communications		Software Engineering Group
http://AppliedTheory.com/               Sentio aliquos togatos contra me conspirare.

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