Messages in this thread | | | Date | Wed, 16 Aug 2006 10:32:59 +0200 | From | Andi Kleen <> | Subject | Re: [MODSLAB 0/7] A modular slab allocator V1 |
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> > 3. New slabs that are created can be merged into the kmalloc array > > if it is detected that they match. This decreases the number of caches > > and benefits cache use. > > While this will be good for reducing fragmentation,
Will it? The theory behind a zone allocator like slab is that objects of the same type have similar livetimes. Fragmentation mostly happens when objects have very different live times. If you mix objects of different types into the same slab then you might get more fragmentation. kmalloc already has that problem but it probably shouldn't be added to other slabs too.
-Andi
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