From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx161.postini.com [74.125.245.161]) by kanga.kvack.org (Postfix) with SMTP id A354B6B0044 for ; Tue, 15 Jan 2013 12:38:15 -0500 (EST) Date: Tue, 15 Jan 2013 11:38:14 -0600 From: Nathan Zimmer Subject: Improving lock pages Message-ID: <20130115173814.GA13329@gulag1.americas.sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: holt@sgi.com, linux-mm@kvack.org Hello Mel, You helped some time ago with contention in lock_pages on very large boxes. You worked with Jack Steiner on this. Currently I am tasked with improving this area even more. So I am fishing for any more ideas that would be productive or worth trying. I have some numbers from a 512 machine. Linux uvpsw1 3.0.51-0.7.9-default #1 SMP Thu Nov 29 22:12:17 UTC 2012 (f3be9d0) x86_64 x86_64 x86_64 GNU/Linux 0.166850 0.082339 0.248428 0.081197 0.127635 Linux uvpsw1 3.8.0-rc1-medusa_ntz_clean-dirty #32 SMP Tue Jan 8 16:01:04 CST 2013 x86_64 x86_64 x86_64 GNU/Linux 0.151778 0.118343 0.135750 0.437019 0.120536 Nathan Zimmer -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org