From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755852AbXFDNfj (ORCPT ); Mon, 4 Jun 2007 09:35:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753751AbXFDNfU (ORCPT ); Mon, 4 Jun 2007 09:35:20 -0400 Received: from x35.xmailserver.org ([64.71.152.41]:1283 "EHLO x35.xmailserver.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753456AbXFDNfS (ORCPT ); Mon, 4 Jun 2007 09:35:18 -0400 X-AuthUser: davidel@xmailserver.org Date: Mon, 4 Jun 2007 06:35:16 -0700 (PDT) From: Davide Libenzi X-X-Sender: davide@alien.or.mcafeemobile.com To: Eric Dumazet cc: Andrew Morton , Ingo Molnar , Linux Kernel Mailing List , Linus Torvalds , Ulrich Drepper Subject: Re: [patch 1/2] ufd v1 - unsequential O(1) fdmap core In-Reply-To: <20070604152540.985c186a.dada1@cosmosbay.com> Message-ID: References: <46633047.1020707@cosmosbay.com> <20070603230859.5000424d.akpm@linux-foundation.org> <20070604080537.GA22898@elte.hu> <20070604080941.GA23537@elte.hu> <20070604013449.ea3acca8.akpm@linux-foundation.org> <20070604122857.1399e3fc.dada1@cosmosbay.com> <20070604152540.985c186a.dada1@cosmosbay.com> X-GPG-FINGRPRINT: CFAE 5BEE FD36 F65E E640 56FE 0974 BF23 270F 474E X-GPG-PUBLIC_KEY: http://www.xmailserver.org/davidel.asc 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 On Mon, 4 Jun 2007, Eric Dumazet wrote: > You add conditional branches on very hot spots. Keep BS for the ones you argue usually, and that are not able to reply. You *still* two bitmaps, because allocation spaces are far apart. So the "if" will still be there. - Davide