From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35040) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z0vH1-0002MT-I5 for qemu-devel@nongnu.org; Fri, 05 Jun 2015 13:19:16 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Z0vH0-0007uH-Tf for qemu-devel@nongnu.org; Fri, 05 Jun 2015 13:19:15 -0400 Message-ID: <5571DA0A.8050200@redhat.com> Date: Fri, 05 Jun 2015 19:19:06 +0200 From: Max Reitz MIME-Version: 1.0 References: <670f06f6e90543526ce4808199ec573459591454.1433521455.git.berto@igalia.com> In-Reply-To: <670f06f6e90543526ce4808199ec573459591454.1433521455.git.berto@igalia.com> Content-Type: text/plain; charset=iso-8859-15; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH v6 3/4] docs: document how to configure the qcow2 L2/refcount caches List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alberto Garcia , qemu-devel@nongnu.org Cc: Kevin Wolf , qemu-block@nongnu.org, Stefan Hajnoczi On 05.06.2015 18:27, Alberto Garcia wrote: > QEMU has options to configure the size of the L2 and refcount > caches for the qcow2 format. However, choosing the right sizes for > a particular disk image is not a straightforward operation since > the ratio between the cache size and the allocated disk space is > not obvious and depends on the size of the cluster and the refcount > entries. > > This document attempts to give an overview of both caches and how to > configure their sizes. > > Signed-off-by: Alberto Garcia > Cc: Max Reitz > --- > docs/qcow2-cache.txt | 164 +++++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 164 insertions(+) > create mode 100644 docs/qcow2-cache.txt Reviewed-by: Max Reitz Thanks!