Sorry about my fault about the experiments, here is the real one. Btw, apparently, there are still some questions about the results and I will sync with Kirill about his test command line. Below is just some simple experiment numbers from this patch, let me know if you would like more: Tested on Xeon machine with 64GiB of RAM, using the current default fault order 4. Sequential access 8GiB file Baseline with-patch 1 thread minor fault 8,389,052 4,456,530 time, seconds 9.55 8.31 Random access 8GiB file Baseline with-patch 1 thread minor fault 8,389,315 6,423,386 time, seconds 11.68 10.51 Best wishes, -- Ning Qu -- 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>