On Mon, Jun 23, 2014 at 06:22:34PM +0200, Andi Kleen wrote: > > So I don't get why we can't do the below; I think Jason tried to ask the > > same... > > The important part for performance is to minimize the cache line transfers. > Your > unconditional variant would cause more dirty cache lines than Tim's, > right?
Don't think so. We already have the overloaded thing on stack and dirty, and the only thing it needs is rq->nr_running and we already unconditionally load that. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
