From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LhUtb-00037m-Qu for qemu-devel@nongnu.org; Wed, 11 Mar 2009 16:19:20 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LhUta-00037D-Nu for qemu-devel@nongnu.org; Wed, 11 Mar 2009 16:19:19 -0400 Received: from [199.232.76.173] (port=34789 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LhUta-000376-Hd for qemu-devel@nongnu.org; Wed, 11 Mar 2009 16:19:18 -0400 Received: from rv-out-0708.google.com ([209.85.198.247]:31288) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1LhUtZ-0001rr-W1 for qemu-devel@nongnu.org; Wed, 11 Mar 2009 16:19:18 -0400 Received: by rv-out-0708.google.com with SMTP id f25so155367rvb.22 for ; Wed, 11 Mar 2009 13:19:16 -0700 (PDT) Message-ID: <49B81CC0.20303@codemonkey.ws> Date: Wed, 11 Mar 2009 15:19:12 -0500 From: Anthony Liguori MIME-Version: 1.0 Subject: Re: [Qemu-devel] Re: Problems KVM-84 References: <49B79D50.4090300@redhat.com> <49B7C6BF.6030803@codemonkey.ws> <49B7D02E.1010307@redhat.com> In-Reply-To: <49B7D02E.1010307@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Avi Kivity Cc: Jay Mann , Uri Lublin , qemu-devel@nongnu.org, kvm@vger.kernel.org Avi Kivity wrote: > Anthony Liguori wrote: >>> >>> Scanning the file at startup is slow. We need to find a better way. >> >> Any quick ideas? Seems like this is broken by design. > > I agree. > >> Unless we can find a quick fix, I'm going to revert this in the >> stable tree. > > We could cache the value in some unused area. Set it up in qemu-img. > Don't support it on older images. > > But that's not a quick fix; I'd suggest reverting it in both stable > and mainline, and re-applying in mainline when there's a fix. Done. Uri, please submit the series again when you've found a solution to these problems. Regards, Anthony Liguori