On 08/03/2015 06:13 PM, Xishi Qiu wrote: > How did you do the experiment? I just stuck in some counters in expand() that looked to see whether the list was empty or not when the page is added and then printed them out occasionally. It will be interesting to see the results both on a freshly-booted system and one that's reached relatively steady-state and is moving around a minimal number of pageblocks between the different types. In any case, the end result here needs to be some indication that the patch either helps ease fragmentation or helps performance. -- 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>