Re: non-NUMA cache_free_alien() (was Re: [RFC] SLAB : NUMAcache_free_alien() very expensive because of virt_to_slab(objp); nodeid =slabp->nodeid;)

[Christoph Lameter]

On Thu, 22 Mar 2007, Siddha, Suresh B wrote:

> @@ -1394,6 +1394,9 @@ void __init kmem_cache_init(void)
>  	int order;
>  	int node;
>  
> +	if (num_online_nodes() == 1)
> +		use_alien_caches = 0;
> +

What happens if you bring up a second node?

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