On 06/28/2012 08:55 AM, Andrea Arcangeli wrote:
o reduced the page_autonuma memory overhead to from 32 to 12 bytes per page
This bit still worries me a little. Between the compact list management code, the migrate daemon, the list locking and page queuing and unqueuing code, we are looking at 1000-2000 lines of code. I know your reasoning why asynchronous migration done by a kernel thread should be better than migrate-on-fault, but there is no actual evidence that it is in fact true. Would it be an idea to simplify the code for now, and add the asynchronous migration later on, if there are compelling benchmark results that show it to be useful? The amount of source code involved is large enough that a justification like that would be useful, IMHO... -- All rights reversed -- 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>