From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= Subject: Re: Image generation Date: Tue, 28 Apr 2020 23:01:04 +0200 Message-ID: <877dxztje7.fsf@gnu.org> References: <878sior7fw.fsf@gmail.com> <87lfml1bei.fsf@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Received: from eggs.gnu.org ([209.51.188.92]:45366) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jTXLm-0000ob-LP for guix-devel@gnu.org; Tue, 28 Apr 2020 17:03:39 -0400 In-Reply-To: <87lfml1bei.fsf@gmail.com> (Mathieu Othacehe's message of "Fri, 24 Apr 2020 11:27:33 +0200") 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-mx.org@gnu.org Sender: "Guix-devel" To: Mathieu Othacehe Cc: guix-devel@gnu.org Hi! Mathieu Othacehe skribis: > This command: > > guix system disk-image --file-system-type=3Diso9660 gnu/system/examples/b= are-bones.tmpl > > takes, > > * Without zisofs compression, on host: 4min > * With zisofs compression, on host: 8min > * With zisofs, on VM: 19min (master) Nice! > This makes me think that we may want to make iso compression optional, > so that tests can use uncompressed iso that takes more space but are > faster to produce. > > It seems that there are also some alternatives to xorriso such as > genisoimage (used by genimage). To me it=E2=80=99s really Xorriso that=E2=80=99s terribly slow, much slower= than what =E2=80=98guix system disk-image=E2=80=99 does for ext4 on master. Ludo=E2=80=99.