From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41483) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eFAoz-0004EP-PW for qemu-devel@nongnu.org; Wed, 15 Nov 2017 22:26:34 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eFAoz-0001Ip-1U for qemu-devel@nongnu.org; Wed, 15 Nov 2017 22:26:33 -0500 Date: Thu, 16 Nov 2017 11:26:22 +0800 From: Fam Zheng Message-ID: <20171116032622.GB14771@lemon> References: <1510654613-47868-1-git-send-email-anton.nefedov@virtuozzo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1510654613-47868-1-git-send-email-anton.nefedov@virtuozzo.com> Subject: Re: [Qemu-devel] [PATCH 0/5] compressed block-stream List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Anton Nefedov Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, kwolf@redhat.com, mreitz@redhat.com, eblake@redhat.com, stefanha@redhat.com, den@virtuozzo.com On Tue, 11/14 13:16, Anton Nefedov wrote: > It might be useful to compress images during block-stream; > this way the user can merge compressed images of a backing chain and > the result will remain compressed. I haven't looked at the patches yet so maybe the answer is obvious, but still: would the "compress" option be still necessary if what we have is blockdev-stream instead? Fam