Re: [RT LATENCY] 249 microsecond latency caused by slub'sunfreeze_partials() code.

[Christoph Lameter]

On Wed, 5 Jun 2013, JoonSoo Kim wrote:

> @@ -2495,7 +2495,8 @@ static void __slab_free(struct kmem_cache *s,
> struct page *page,
>                 new.inuse--;
>                 if ((!new.inuse || !prior) && !was_frozen) {
>
> -                       if (!kmem_cache_debug(s) && !prior)
> +                       if (!kmem_cache_debug(s) && !prior &&
> +                               node_match(page,
> cpu_to_node(smp_processor_id())))
>

Would increase the overhead of the free path. cpu_to_node? Use
numa_node_id().
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/