From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755458Ab0BNLy1 (ORCPT ); Sun, 14 Feb 2010 06:54:27 -0500 Received: from tossu.ebaana.net ([62.121.33.10]:4120 "EHLO tossu.ebaana.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754097Ab0BNLy0 (ORCPT ); Sun, 14 Feb 2010 06:54:26 -0500 From: Lasse Collin To: Stefan Richter Subject: Re: [kernel.org users] XZ Migration discussion Date: Sun, 14 Feb 2010 11:56:21 +0200 User-Agent: KMail/1.12.1 (Linux/2.6.30-ARCH; KDE/4.3.1; i686; ; ) Cc: Pavel Machek , Willy Tarreau , Jean Delvare , "linux-kernel" , mirrors@kernel.org, users@kernel.org, "FTPAdmin Kernel.org" , Linus Torvalds References: <4B744E13.8040004@kernel.org> <4B767989.1010200@s5r6.in-berlin.de> <4B767D34.2080909@s5r6.in-berlin.de> In-Reply-To: <4B767D34.2080909@s5r6.in-berlin.de> MIME-Version: 1.0 Content-Type: Text/Plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Message-Id: <201002141156.21576.lasse.collin@tukaani.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2010-02-13 Stefan Richter wrote: > PS: It boils down to CPU time requirements. For small memory > systems, there is the XZ Embedded decompressor. XZ Embedded saves only code size. If the file was compressed with settings that make the decompressor require e.g. 65 MiB RAM (xz -9), using XZ Embedded won't help you. XZ Embedded is also very limited. It cannot decompress all .xz files. It should still be quite useful, since on some architectures it can compress the kernel image better than the current LZMA support in the kernel, and the API should be nice to use e.g. by Squashfs. -- Lasse Collin | IRC: Larhzu @ IRCnet & Freenode