From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:32778) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VoZ1D-0008Qj-Ty for qemu-devel@nongnu.org; Thu, 05 Dec 2013 08:31:09 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VoZ19-0007VN-2J for qemu-devel@nongnu.org; Thu, 05 Dec 2013 08:31:03 -0500 Received: from mx1.redhat.com ([209.132.183.28]:7094) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VoZ18-0007VG-Pz for qemu-devel@nongnu.org; Thu, 05 Dec 2013 08:30:59 -0500 Message-ID: <52A08006.2030904@redhat.com> Date: Thu, 05 Dec 2013 06:30:46 -0700 From: Eric Blake MIME-Version: 1.0 References: <1385546829-3839-1-git-send-email-pl@kamp.de> <1385546829-3839-7-git-send-email-pl@kamp.de> In-Reply-To: <1385546829-3839-7-git-send-email-pl@kamp.de> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="m9rn3eD1C1X1ciuboXhGriDCfRtHL8H8q" Subject: Re: [Qemu-devel] [PATCHv3 1.8 6/9] qemu-img: dynamically adjust iobuffer size during convert List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Lieven , qemu-devel@nongnu.org Cc: kwolf@redhat.com, pbonzini@redhat.com, stefanha@redhat.com This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --m9rn3eD1C1X1ciuboXhGriDCfRtHL8H8q Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 11/27/2013 03:07 AM, Peter Lieven wrote: > since the convert process is basically a sync operation it might > be benificial in some case to change the hardcoded I/O buffer s/benificial/beneficial/ > size to a greater value. >=20 > This patch increases the I/O buffer size if the output > driver advertises an optimal transfer length or discard alignment > that is greater than the default buffer size of 2M. >=20 --=20 Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org --m9rn3eD1C1X1ciuboXhGriDCfRtHL8H8q 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/ iQEcBAEBCAAGBQJSoIAGAAoJEKeha0olJ0NqkdgH/2bqGvfjhiJTHMi60w0JflrF X4KGe4/k9CqekbhRgQe9jduNTQpJIOCYYtSYitUzariDXiiQhVFPoGXb37PEYuEF J7mDXNGuslz+GKfWOCYE2hL0dpKfcIp5KYt9rW4hI6ImDzfmInqhZUGRWZz+4vZf Ct/DRhrP21RVcDmF0UaF+OR6sDzwf8ZFL9QwBlJMOAX9ijIp/VIUyAVWiunHGCIg aQfw1BenkSazEH+4ZGzBnNVTJCdvxkgFNi5YULE3uDSC7LZYQ2qMVduiRGNNj2qs KlGuug6Nq29MxkEepe9zjNdyKDdfKdBi5U7SCz9boRDheElx2jGlgeVeyTzG3wQ= =FPZT -----END PGP SIGNATURE----- --m9rn3eD1C1X1ciuboXhGriDCfRtHL8H8q--