On Tue, 25 Nov 2014 15:51:58 +0900 Chanho Min <chanho.min@xxxxxxx> wrote: > The faultaround improves the file read performance, whereas pages which > can be dropped by drop_caches are reduced. On some systems, The amount of > freeable pages under memory pressure is more important than read > performance. The faultaround pages *are* freeable. Perhaps you meant "free" here. Please tell us a great deal about the problem which you are trying to solve. What sort of system, what sort of workload, what is bad about the behaviour which you are observing, etc. -- 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>