From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx122.postini.com [74.125.245.122]) by kanga.kvack.org (Postfix) with SMTP id 33F6E6B0034 for ; Wed, 31 Jul 2013 12:39:10 -0400 (EDT) Date: Wed, 31 Jul 2013 18:39:03 +0200 From: Peter Zijlstra Subject: Re: [PATCH 0/18] Basic scheduler support for automatic NUMA balancing V5 Message-ID: <20130731163903.GG3008@twins.programming.kicks-ass.net> References: <1373901620-2021-1-git-send-email-mgorman@suse.de> <20130725103620.GM27075@twins.programming.kicks-ass.net> <20130731103052.GR2296@suse.de> <20130731104814.GA3008@twins.programming.kicks-ass.net> <20130731115719.GT2296@suse.de> <20130731153018.GD3008@twins.programming.kicks-ass.net> <20130731161141.GX2296@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130731161141.GX2296@suse.de> Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: Srikar Dronamraju , Ingo Molnar , Andrea Arcangeli , Johannes Weiner , Linux-MM , LKML On Wed, Jul 31, 2013 at 05:11:41PM +0100, Mel Gorman wrote: > RSS was another option it felt as arbitrary as a plain delay. Right, it would avoid 'small' programs getting scanning done with the rationale that their cost isn't that large since they don't have much memory to begin with. The same can be said for tasks that don't run much -- irrespective of how much absolute runtime they've gathered. Is there any other group of tasks that we do not want to scan? Maybe if we can list all the various exclusions we can get to a proper quantifier that way. So far we've got: - doesn't run long - doesn't run much - doesn't have much memory > Should I revert 5bca23035391928c4c7301835accca3551b96cc2 with an > explanation that it potentially is completely useless in the purely > multi-process shared case? Yeah I suppose so.. -- 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