From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Enge Subject: Compressing compressed files Date: Mon, 1 Aug 2016 10:58:39 +0200 Message-ID: <20160801085839.GA2426@solar> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:33105) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bU93g-00035I-4L for guix-devel@gnu.org; Mon, 01 Aug 2016 04:58:49 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bU93c-0007No-Mt for guix-devel@gnu.org; Mon, 01 Aug 2016 04:58:47 -0400 Received: from mailrelay6.public.one.com ([91.198.169.200]:32395) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bU93c-0007M5-Ap for guix-devel@gnu.org; Mon, 01 Aug 2016 04:58:44 -0400 Content-Disposition: inline List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: guix-devel@gnu.org Hello, I am seeing this funny command being executed on one of the build machines: bash -c guix archive --export /gnu/store/06g54r7am7ka96d7jydgmayfyqgx1s1l-cfe-3.5.2.src.tar.xz | xz -c Would it be difficult to prevent re-compressing of already compressed source when offloading? Especially since xz is rather expensive, and more or less occupies one core of the arm machines. Andreas