Slub/slab paging

Lennart Sorensen lsorense-1wCw9BSqJbv44Nm34jS7GywD8/FfD2ys at public.gmane.org
Tue Aug 28 18:03:08 UTC 2012


On Tue, Aug 28, 2012 at 12:10:12PM -0400, William Muriithi wrote:
> I have a quick question that Google is not being too helpful. I am trying
> to find if Linux do use SLUB for user space page management.
> 
> Would anybody know if that's the case? I mean would you go looking under
> the slab statistics for application related memory stuff?
> 
> After Googling a bit, I get a feeling only it only deal with kernel paging
> as I couldn't find any application related discussion.

The kernel supports multiple memory allocation systems.

SLUB, SLAB and SLOB are the ones I know of.  It is a configuration choice
in the kernel for which one to use.

I believe SLAB is the default these days, while SLUB used to be a few
years ago.

-- 
Len Sorensen
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