From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx136.postini.com [74.125.245.136]) by kanga.kvack.org (Postfix) with SMTP id AA81C6B004F for ; Fri, 13 Jan 2012 10:28:23 -0500 (EST) Date: Fri, 13 Jan 2012 09:28:20 -0600 (CST) From: Christoph Lameter Subject: Re: [RFC][PATCH] mm: Remove NUMA_INTERLEAVE_HIT In-Reply-To: <20120112222929.GI11715@one.firstfloor.org> Message-ID: References: <1326380820.2442.186.camel@twins> <20120112182644.GE11715@one.firstfloor.org> <1326399227.2442.209.camel@twins> <20120112210743.GG11715@one.firstfloor.org> <20120112134045.552e2a61.akpm@linux-foundation.org> <20120112222929.GI11715@one.firstfloor.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Andi Kleen Cc: Andrew Morton , Peter Zijlstra , Mel Gorman , Lee Schermerhorn , "linux-mm@kvack.org" On Thu, 12 Jan 2012, Andi Kleen wrote: > The problem is that then there will be nothing left that actually > tests interleaving. The numactl has caught kernel regressions in the past. How about adding a CONFIG_NUMA_DEBUG option and have it only available then? I think there is no general use case. > I don't think disabling useful regression tests is a good idea. > In contrary the kernel needs far more of them, not less. True. Some more debugging code for the NUMA features would be appreciated but that does not need to be enabled by default. Lately I have become a bit concerned about the number of statistics we are adding. The per_cpu_pageset structure should not get too large. -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org