On Thu, Nov 08, 2007 at 02:50:44PM +0000, Mel Gorman wrote: > > - if (!s->defrag_ratio || get_cycles() % 1024 > s->defrag_ratio) > > + if (!s->remote_node_defrag_ratio || > > + get_cycles() % 1024 > s->remote_node_defrag_ratio) > > I cannot figure out what the number of cycles currently showing on the TSC > have to do with a ratio :(. I could semi-understand if we were counting up > how many cycles were being spent trying to pack objects but that does not > appear to be the case. The comment didn't help a whole lot either. It felt > like a cost for packing, not a ratio
It's just a random number generator. And a bad one: lots of arches return 0. And I believe at least one of them has some NUMA support. -- Mathematics is the supreme nostalgia of our time. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
