On 01/06/2015 05:14 PM, Michal Hocko wrote: > - THP success rate has become one of the metric for reclaim/compaction > changes which I feel is missing one important aspect and that is > cost/benefit analysis. It might be better to have more THP pages in > some loads but the whole advantage might easily go away when the > initial cost is higher than all aggregated saves. When it comes to > benchmarks and numbers we are usually missing the later. So what I think would help in this discussion is some numbers on how much hugepages (thus THP) actually help performance nowadays. Does anyone have such results on recent hardware from e.g. SPEC CPU2006 or even production workloads? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>