Messages in this thread | | | Date | Wed, 17 Dec 2014 16:15:34 +0900 | Subject | Re: [PATCH 3/7] slub: Do not use c->page on free | From | Joonsoo Kim <> |
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2014-12-17 0:48 GMT+09:00 Christoph Lameter <cl@linux.com>: > On Tue, 16 Dec 2014, Jesper Dangaard Brouer wrote: > >> > Ok but now there is a multiplication in the fast path. >> >> Could we pre-calculate the value (page->objects * s->size) and e.g store it >> in struct kmem_cache, thus saving the imul ? > > I think I just used the last available field for the page->address.
Possibly, we can use _count field.
Thanks.
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