Messages in this thread | | | From | Daniel Phillips <> | Subject | Re: [RFC] My research agenda for 2.7 | Date | Fri, 27 Jun 2003 17:50:52 +0200 |
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On Friday 27 June 2003 17:22, Mel Gorman wrote: > I still suspect moving order0 allocations to slab will be a fragmentation > resistent allocator but my main concern would be that the slab allocator > overhead, both CPU and storage requirements will be too high. > > On the other hand, it would do some things you are looking for. For > example, it allocates large blocks of memory in one lump and then > allocates them piecemeal. Second, it would be resistent to the FAFAFA > problem Martin pointed out. As slabs would be allocated in a large block > from the buddy, you are guarenteed that you'll be able to free up buddies. > Lastly, as there would be a cache specifically for userspace pages, a > defragger that looked exclusively at user pages will still be sure of > being able to free adjacent buddies. > > I need to write a proper RFC.....
You might want to have a look at this:
http://www.research.att.com/sw/tools/vmalloc/ (Vmalloc: A Memory Allocation Library)
Regards,
Daniel
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