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Re: [Xen-devel] [PATCH 3/3] Replace slab.c with a very simpleallocator.

ultraptr@xxxxxxxxxxx wrote:
I wonder what are reasons for this replacement. From outside it looks like
proven and fast slab allocator is being replaced with slow and new one just
for sake of size and beauty of source codes?

Read the paper describing the original version of the slab allocator
(http://citeseer.ist.psu.edu/bonwick94slab.html), and then look at how it
is used in Xen (the calls that are being replaced by xmalloc in the patch).

From this it is clear that the feature that results in most of the
allocator's complexity (retaining parts of the initialized state of
objects to reduce the cost of reinitialization) is not used at all by Xen.

David Hopwood <david.nospam.hopwood@xxxxxxxxxxxxxxxx>

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