From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753916AbXDLXbm (ORCPT ); Thu, 12 Apr 2007 19:31:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753915AbXDLXbm (ORCPT ); Thu, 12 Apr 2007 19:31:42 -0400 Received: from gw.goop.org ([64.81.55.164]:44983 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753916AbXDLXbk (ORCPT ); Thu, 12 Apr 2007 19:31:40 -0400 Message-ID: <461EC138.10407@goop.org> Date: Thu, 12 Apr 2007 16:31:04 -0700 From: Jeremy Fitzhardinge User-Agent: Thunderbird 1.5.0.10 (X11/20070302) MIME-Version: 1.0 To: Jan Engelhardt CC: Andi Kleen , Andrew Morton , Tim Yamin , Linux Kernel Mailing List Subject: Re: [PATCH UPDATE] deflate stack usage in lib/inflate.c References: <461DED14.1070603@goop.org> <461E9BAD.8050202@goop.org> <200704122321.23318.ak@suse.de> <461EB515.4080106@goop.org> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jan Engelhardt wrote: > On Apr 12 2007 15:39, Jeremy Fitzhardinge wrote: > >> Andi Kleen wrote: >> >>> Hmm, does Xen perhaps not use interrupt stacks? Normally 2.7k should be still >>> green as long as there are not too many functions above/below it. >>> >> That's a good point, I'll need to check that. Still, nearly 3k of stack! >> > > I bite. Would compressing the vmlinux binary with LZO or LZMA make an > improvement to the bootstrap uncompress stack usage? > Well, the thread started with my patch to fix inflate. The stack usage of LZO or LZMA decompressors will primarily depend on how they're implemented rather than any inherent property of the algorithms. J