Messages in this thread | | | Date | Tue, 14 Jan 2014 21:05:50 -0800 (PST) | From | David Rientjes <> | Subject | Re: [PATCH v3 3/5] slab: restrict the number of objects in a slab |
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On Mon, 2 Dec 2013, Joonsoo Kim wrote:
> To prepare to implement byte sized index for managing the freelist > of a slab, we should restrict the number of objects in a slab to be less > or equal to 256, since byte only represent 256 different values. > Setting the size of object to value equal or more than newly introduced > SLAB_OBJ_MIN_SIZE ensures that the number of objects in a slab is less or > equal to 256 for a slab with 1 page. > > If page size is rather larger than 4096, above assumption would be wrong. > In this case, we would fall back on 2 bytes sized index. > > If minimum size of kmalloc is less than 16, we use it as minimum object > size and give up this optimization. > > Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: David Rientjes <rientjes@google.com>
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