From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sat, 5 May 2007 19:11:53 +0200 From: Andi Kleen Subject: Re: [RFC 2/3] SLUB: Implement targeted reclaim and partial list defragmentation Message-ID: <20070505171153.GA19957@one.firstfloor.org> References: <20070504221555.642061626@sgi.com> <20070504221708.596112123@sgi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: Andi Kleen , linux-kernel@vger.kernel.org, linux-mm@kvack.org, dgc@sgi.com, Eric Dumazet , Mel Gorman List-ID: On Sat, May 05, 2007 at 08:42:50AM -0700, Christoph Lameter wrote: > On Sat, 5 May 2007, Andi Kleen wrote: > > > clameter@sgi.com writes: > > > > > > NOTE: This patch is for conceptual review. I'd appreciate any feedback > > > especially on the locking approach taken here. It will be critical to > > > resolve the locking issue for this approach to become feasable. > > > > Do you have any numbers on how this improves dcache reclaim under memory pressure? > > How does one measure something like that? You could measure how many dentries are flushed before an > order 1 allocation is satisfied? Make sure to fill the dcache first. There are no counters there for this, but that should be reasonably easy to add. -Andi -- 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