From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37876) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VdKVt-00051B-U8 for qemu-devel@nongnu.org; Mon, 04 Nov 2013 08:48:22 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VdKVo-0007K5-9H for qemu-devel@nongnu.org; Mon, 04 Nov 2013 08:48:17 -0500 Received: from mx1.redhat.com ([209.132.183.28]:62459) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VdKVo-0007Jy-0v for qemu-devel@nongnu.org; Mon, 04 Nov 2013 08:48:12 -0500 Message-ID: <5277A595.4040004@redhat.com> Date: Mon, 04 Nov 2013 06:48:05 -0700 From: Eric Blake MIME-Version: 1.0 References: <7d565b41.5d72.1421e694fe5.Coremail.wenchao5566@163.com> In-Reply-To: <7d565b41.5d72.1421e694fe5.Coremail.wenchao5566@163.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="R3s35xdM4vifsv33vxQp6K09uS557wBW3" Subject: [Qemu-devel] savevm speed [was: Re: Qemu-devel Digest, Vol 128, Issue 24] List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: =?UTF-8?B?5a6r5paH6LaF?= , qemu-devel@nongnu.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --R3s35xdM4vifsv33vxQp6K09uS557wBW3 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 11/03/2013 07:41 AM, =E5=AE=AB=E6=96=87=E8=B6=85 wrote: >=20 >=20 Top-posted replies to an untrimmed digest message and with an irrelevant subject line are considered poor netiquette. >=20 >=20 > When i use the savevm command to create a online snapshot i found it's = very very slow,i found the online snapshot save four device information,a= nd now i only want to save the disk information so i delete the code to s= ave the other three device information,however,i found > when the disk capacity is big it's also very slow ,could you offer some= ideas to solve this problem?THX by Wenchao Gong What qemu version are you using? There have been patches that will be in the eventual qemu 1.7 to address some of the speed problems, and further patches planned for 1.8 to make internal snapshots more flexible to use. Perhaps you can evaluate those patches and provide reviews. --=20 Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org --R3s35xdM4vifsv33vxQp6K09uS557wBW3 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.15 (GNU/Linux) Comment: Public key at http://people.redhat.com/eblake/eblake.gpg Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBCAAGBQJSd6WWAAoJEKeha0olJ0Nq+Z4H/ihyoFHli5hxdEiIHxKUreVQ 0NEUi5Nspuk8REw9HXdIg1TlkGlkHlhgOTq1r9pdkiLsdyBBZ1lnt5FDdpERmI/A cUQwgy5u2CfNCTZL0529L02qeP0bJHb/oo86gXvU2ctQV76i0DSFaQvPOUkuD3cM C2RHwT5F5c+4TsAdw3KAuGIUeAD7C5GcluqsJH1J5zB5H9oMDXJ1r5prgifD8rCt MM1NnKiDGxlzJnmGCl+ecEQeFJL74RPZlpWxGbV4aeahY3/6NKSzOff5Hl1FDFDV MXDJdCZtXXnJkE23N1BNKe27k5Br8e1rZIANMQdCmd4R2cWGl5sV9fqqiF/kzhs= =48u+ -----END PGP SIGNATURE----- --R3s35xdM4vifsv33vxQp6K09uS557wBW3--