On Wed, 7 Dec 2016, Mel Gorman wrote: > Which is related to the fundamentals of fragmentation control in > general. At some point there will have to be a revisit to get back to > the type of reliability that existed in 3.0-era without the massive > overhead it incurred. As stated before, I agree it's important but > outside the scope of this patch. What reliability issues are there? 3.X kernels were better in what way? Which overhead are we talking about? Fragmentation has been a problem for a long time and the issue gets worse as memory sizes increase, the hardware improves and the expectations on throughput and reliability increase. -- 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>