Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264329AbUDOQtF (ORCPT ); Thu, 15 Apr 2004 12:49:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264331AbUDOQtF (ORCPT ); Thu, 15 Apr 2004 12:49:05 -0400 Received: from bay-bridge.veritas.com ([143.127.3.10]:22032 "EHLO MTVMIME01.enterprise.veritas.com") by vger.kernel.org with ESMTP id S264329AbUDOQtC (ORCPT ); Thu, 15 Apr 2004 12:49:02 -0400 Date: Thu, 15 Apr 2004 17:48:52 +0100 (BST) From: Hugh Dickins X-X-Sender: hugh@localhost.localdomain To: Bill Davidsen cc: linux-kernel@vger.kernel.org Subject: Re: Benchmarking objrmap under memory pressure In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1322 Lines: 31 On Thu, 15 Apr 2004, Bill Davidsen wrote: > Hugh Dickins wrote: > > > > The worst that will happen with anonmm's mremap move, is that some > > app might go slower and need more swap. Unlikely, but agreed possible. > > It appears that users on small memory machines running kde are not of > concern to you. Unfortunately that describes a fair number of people, > not everyone has the big memory fast system. I will try to get some > reproducible numbers, but "consistently feels faster" is a reason to > keep running -aa even if I can't quantify it. Appearances can be deceptive. Of course I care about users, of small or large memory machines, running kde or not. It appears that you do not understand that we're talking about a case so rare that we've never seen it in practice, only by testing. But perhaps we haven't looked out for it enough (no printk), I'd better put something in to tell us when it does occur, thanks for the reminder. If -aa consistently feels faster to you, great, go with it: but I doubt it's because of this issue we're discussing! Hugh - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/