Messages in this thread | | | Date | Tue, 14 Jan 2014 21:09:15 -0800 (PST) | From | David Rientjes <> | Subject | Re: [PATCH v3 5/5] slab: make more slab management structure off the slab |
| |
On Mon, 2 Dec 2013, Joonsoo Kim wrote:
> Now, the size of the freelist for the slab management diminish, > so that the on-slab management structure can waste large space > if the object of the slab is large. > > Consider a 128 byte sized slab. If on-slab is used, 31 objects can be > in the slab. The size of the freelist for this case would be 31 bytes > so that 97 bytes, that is, more than 75% of object size, are wasted. > > In a 64 byte sized slab case, no space is wasted if we use on-slab. > So set off-slab determining constraint to 128 bytes. > > Acked-by: Christoph Lameter <cl@linux.com> > Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: David Rientjes <rientjes@google.com>
| |