Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 5 Aug 2002 01:50:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 5 Aug 2002 01:50:37 -0400 Received: from pizda.ninka.net ([216.101.162.242]:25279 "EHLO pizda.ninka.net") by vger.kernel.org with ESMTP id ; Mon, 5 Aug 2002 01:50:36 -0400 Date: Sun, 04 Aug 2002 22:40:43 -0700 (PDT) Message-Id: <20020804.224043.06804556.davem@redhat.com> To: frankeh@watson.ibm.com Cc: torvalds@transmeta.com, davidm@hpl.hp.com, davidm@napali.hpl.hp.com, gh@us.ibm.com, Martin.Bligh@us.ibm.com, wli@holomorpy.com, linux-kernel@vger.kernel.org Subject: Re: large page patch (fwd) (fwd) From: "David S. Miller" In-Reply-To: <200208041331.24895.frankeh@watson.ibm.com> References: <20020803.172836.60864598.davem@redhat.com> <200208041331.24895.frankeh@watson.ibm.com> X-Mailer: Mew version 2.1 on Emacs 21.1 / Mule 5.0 (SAKAKI) 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 Content-Length: 1087 Lines: 24 From: Hubertus Franke Date: Sun, 4 Aug 2002 13:31:24 -0400 Can we tweak the buddy allocator to give us this additional functionality? Absolutely not, it's a total lose. I have tried at least 5 times to make it work without fragmenting the buddy lists to shit. I channege you to code one up that works without fragmenting things to shreds. Just run an endless kernel build over and over in a loop for a few hours to a day. If the buddy lists are not fragmented after these runs, then you have succeeded in my challenge. Do not even reply to this email without meeting the challenge as it will fall on deaf ears. I've been there and I've done that, and at this point code talks bullshit walks when it comes to trying to colorize the buddy allocator in a way that actually works and isn't disgusting. - 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/