From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261702AbVBXCI6 (ORCPT ); Wed, 23 Feb 2005 21:08:58 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261690AbVBXCI6 (ORCPT ); Wed, 23 Feb 2005 21:08:58 -0500 Received: from omx3-ext.sgi.com ([192.48.171.20]:49610 "EHLO omx3.sgi.com") by vger.kernel.org with ESMTP id S261694AbVBXCHy (ORCPT ); Wed, 23 Feb 2005 21:07:54 -0500 Date: Wed, 23 Feb 2005 18:07:32 -0800 From: Paul Jackson To: Jay Lan Cc: kaigai@ak.jp.nec.com, akpm@osdl.org, lse-tech@lists.sourceforge.net, linux-kernel@vger.kernel.org, guillaume.thouvenin@bull.net, tim@physik3.uni-rostock.de, erikj@subway.americas.sgi.com, limin@dbear.engr.sgi.com, jbarnes@sgi.com Subject: Re: [Lse-tech] Re: A common layer for Accounting packages Message-Id: <20050223180732.3ecd3894.pj@sgi.com> In-Reply-To: <421D3448.7050209@sgi.com> References: <42168D9E.1010900@sgi.com> <20050218171610.757ba9c9.akpm@osdl.org> <421993A2.4020308@ak.jp.nec.com> <421B955A.9060000@sgi.com> <421C2B99.2040600@ak.jp.nec.com> <20050223172551.6771ce7a.pj@sgi.com> <421D3448.7050209@sgi.com> Organization: SGI X-Mailer: Sylpheed version 1.0.0 (GTK+ 1.2.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jay wrote: > I think the microbenchmarking your link provides is irrelevant. In the cases such as you describe where it's just some sort of empty function call, then yes, I am willing to accept a wave of the hands and a simple explanation of how it's not significant. I've done the same myself ;). What about the case where accounting is enabled, and thus actually has to do work? How does that compare with just doing the traditional BSD accounting? I presume in that case that the benchmarking is no longer irrelevant. Though if you can make a decent case that it is, I'm willing to listen. -- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson 1.650.933.1373, 1.925.600.0401