[Lxc-users] Copy-on-write hard-link / hashify feature

[Daniel Lezcano]

On 06/10/2010 10:54 PM, Gordon Henderson wrote:
> On Thu, 10 Jun 2010, John Drescher wrote:
>
>    
>> BTW, a second option is lessfs.
>>
>> http://www.lessfs.com/wordpress/?page_id=50
>>      
> What about the KSM kernel option? It's aimed at KVM I think and in the
> kernel from 2.6.32. See:
>
>    http://lwn.net/Articles/306704/
> and
>    http://lwn.net/Articles/330589/
>
> Not sure if that could be used to help here - it seems a bit of a
> retrospective way to find data duplications - assuming we could enable it
> for whole containers...
>    

KSM is enabled on my ubuntu 10.04. When I do a compilation, ksm takes 
more cpu than the compilation itself and is always eating 10-30% of my 
cpu (Intel(R) Core(TM)2 Duo CPU T9500  @ 2.60GHz). So I disabled it 
definitively ...