Re: memcg: slab control

[Balbir Singh <balbir@linux.vnet.ibm.com>]

* Suleiman Souhlal <suleiman@google.com> [2009-11-26 02:13:17]:

> On 11/26/09, Balbir Singh <balbir@linux.vnet.ibm.com> wrote:
> >  I think it is easier to write a slab controller IMHO.
> 
> One potential problem I can think of with writing a slab controller
> would be that the user would have to estimate what fraction of the
> amount of memory slab should be allowed to use, which might not be
> ideal.
> 
> If you wanted to limit a cgroup to a total of 1GB of memory, you might
> not care if the job wants to use 0.9 GB of user memory and 0.1GB of
> slab or if it wants to use 0.9GB of slab and 0.1GB of user memory..
>

Hmm.. true, yes not caring about how memory usage is partitioned is
nice (we have memsw for very similar reasons).
 
> Because of this, it might be more practical to integrate the slab
> accounting in memcg.
> 

I tend to agree, but I would like to see the early design and
thoughts. Like Kame pointed, integrating their accounting can be an
issue.

-- 
	Balbir

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>