On Fri, Sep 21, 2012 at 11:14:45PM +0300, Pekka Enberg wrote: > On Fri, Sep 21, 2012 at 11:07 PM, Tejun Heo <tj@xxxxxxxxxx> wrote: > > Not necessarily disagreeing, but I don't think it's helpful to set the > > bar impossibly high. Even static_key doesn't have "exactly *zero*" > > impact. Let's stick to as minimal as possible when not in use and > > reasonable in use. > > For !CONFIG_MEMCG_KMEM, it should be exactly zero. No need to play > games with static_key. Ah, misread, though you were talking about MEMCG_KMEM && not in use. Yeap, if turned off in Kconfig, it shouldn't have any performance overhead. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
