From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 17 Sep 2007 12:14:51 -0700 (PDT) From: Christoph Lameter Subject: Re: [PATCH] Fix NUMA Memory Policy Reference Counting In-Reply-To: <1190055637.5460.105.camel@localhost> Message-ID: References: <20070830185053.22619.96398.sendpatchset@localhost> <1190055637.5460.105.camel@localhost> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Lee Schermerhorn Cc: linux-mm@kvack.org, akpm@linux-foundation.org, ak@suse.de, eric.whitney@hp.com, Mel Gorman List-ID: On Mon, 17 Sep 2007, Lee Schermerhorn wrote: > Page allocation micro-benchmark: > > Time to fault in 256K 16k pages [ia64] into a 4G anon segment. You need to run this as a test that concurrently allocates these pages from as many processors as possible in a common address space. A single thread will not cause cache line bouncing. I suspect this will cause an additional issue than what we already have with mmap_sem locking. -- 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