Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762824AbXJNUQ5 (ORCPT ); Sun, 14 Oct 2007 16:16:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753692AbXJNUQt (ORCPT ); Sun, 14 Oct 2007 16:16:49 -0400 Received: from lucidpixels.com ([75.144.35.66]:39132 "EHLO lucidpixels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752801AbXJNUQs (ORCPT ); Sun, 14 Oct 2007 16:16:48 -0400 Date: Sun, 14 Oct 2007 16:16:47 -0400 (EDT) From: Justin Piszcz X-X-Sender: jpiszcz@p34.internal.lan To: Jan Engelhardt cc: linux-kernel@vger.kernel.org, apiszcz@solarrain.com Subject: Re: In response to kernel compression e-mail a few months ago. In-Reply-To: Message-ID: References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1581 Lines: 60 On Sun, 14 Oct 2007, Jan Engelhardt wrote: > > On Oct 14 2007 15:53, Justin Piszcz wrote: >>> >>> What's with all these odd formats, and where is .zip? :) >>> Somehow... have you tried lrzip? >> $ apt-cache search lrzip >> $ >> >> I tried most of the main ones in the standard testing distribution within >> Debian. > > Debian is not a solution to everything. > > http://ck.kolivas.org/apps/lrzip/ > $ lrzip -L 9 linux-2.6.16.17.tar Failed to open streams in rzip_fd Fatal error - exiting $ lrzip linux-2.6.16.17.tar -o linux-2.6.16.17.tar.lrz Failed to open streams in rzip_fd Fatal error - exiting $ lrzip -l -L 9 linux-2.6.16.17.tar Bus error PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 22176 abc 20 0 2197m 156m 75m R 93 4.8 0:09.17 lrzip It must grow to 3.0GB and die (this is on an x86 host).. $ lrzip -w 1 -l -L 9 linux-2.6.16.17.tar linux-2.6.16.17.tar - compression ratio 3.127 $ du -sh *lrz 72M linux-2.6.16.17.tar.lrz $ lrzip -w 10 -l -L 9 linux-2.6.16.17.tar linux-2.6.16.17.tar - compression ratio 3.380 $ du -sh *lrz 67M linux-2.6.16.17.tar.lrz Does not seem to come close unless I am doing something wrong. Also, 7z can compress/decompress on stdin and it is multi-threaded (uses 1.8-2.2 CPU/cores). >> note that lrzip cannot operate on stdin/stdout Justin. - 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/