> > Don't we need to make per zone stastics? I'm afraid small dma zone > > makes much thp-splitting and screw up this stastics. > > Does it? I haven't seen that so far. > > If it happens a lot it would be better to disable THP for the 16MB DMA > zone at least. Or did you mean the 4GB zone? I assumered 4GB. And cpusets/mempolicy binding might makes similar issue. It can make only one zone high pressure. But, hmmm... Do you mean you don't hit any issue then? I don't think do don't tested NUMA machine. So, it has no practical problem I can agree this. Thanks. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>