From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:41426) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QbrL7-00052P-5W for qemu-devel@nongnu.org; Wed, 29 Jun 2011 05:45:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QbrL5-0000zx-TS for qemu-devel@nongnu.org; Wed, 29 Jun 2011 05:45:45 -0400 Received: from mx1.redhat.com ([209.132.183.28]:7005) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QbrL5-0000zp-GG for qemu-devel@nongnu.org; Wed, 29 Jun 2011 05:45:43 -0400 Message-ID: <4E0AF4F0.7050609@redhat.com> Date: Wed, 29 Jun 2011 11:48:32 +0200 From: Kevin Wolf MIME-Version: 1.0 References: <4DFF5D8B.80600@redhat.com> <1308588499-6562-1-git-send-email-fsimonce@redhat.com> In-Reply-To: <1308588499-6562-1-git-send-email-fsimonce@redhat.com> Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCHv4] qemu-img: Add cache command line option List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Federico Simoncelli Cc: avi@redhat.com, qemu-devel@nongnu.org, kvm@vger.kernel.org, hch@lst.de Am 20.06.2011 18:48, schrieb Federico Simoncelli: > qemu-img currently writes disk images using writeback and filling > up the cache buffers which are then flushed by the kernel preventing > other processes from accessing the storage. > This is particularly bad in cluster environments where time-based > algorithms might be in place and accessing the storage within > certain timeouts is critical. > This patch adds the option to choose a cache method when writing > disk images. > > Signed-off-by: Federico Simoncelli Thanks, applied to the block branch. Kevin