From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40644) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YJlfI-0007Ku-1v for qemu-devel@nongnu.org; Fri, 06 Feb 2015 11:21:56 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YJlfD-00020L-IH for qemu-devel@nongnu.org; Fri, 06 Feb 2015 11:21:55 -0500 Received: from mail-we0-x22b.google.com ([2a00:1450:400c:c03::22b]:63040) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YJlfD-00020D-C7 for qemu-devel@nongnu.org; Fri, 06 Feb 2015 11:21:51 -0500 Received: by mail-we0-f171.google.com with SMTP id k11so14705027wes.2 for ; Fri, 06 Feb 2015 08:21:50 -0800 (PST) Date: Fri, 6 Feb 2015 16:21:39 +0000 From: Stefan Hajnoczi Message-ID: <20150206162139.GJ18729@stefanha-thinkpad.redhat.com> References: <1423209253-22222-1-git-send-email-jasowang@redhat.com> <1423209253-22222-3-git-send-email-jasowang@redhat.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="W13SgbpmD6bhZUTM" Content-Disposition: inline In-Reply-To: <1423209253-22222-3-git-send-email-jasowang@redhat.com> Subject: Re: [Qemu-devel] [PATCH 2/5] virtio: increase VIRITO_QUEUE_MAX to 513 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Jason Wang Cc: qemu-devel@nongnu.org, mst@redhat.com --W13SgbpmD6bhZUTM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Fri, Feb 06, 2015 at 03:54:10PM +0800, Jason Wang wrote: Subject has a typo s/VIRITIO/VIRTIO/ > Recent linux kernel supports up to 256 tap queues. Increase the limit > to 513 (256 * 2 + 1(ctrl vq)). For other reviewers: sizeof(VirtQueue) on x86_64 is 88 bytes. We waste memory but it's only on the order of 40 KB so I think this is okay. --W13SgbpmD6bhZUTM Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJU1OoTAAoJEJykq7OBq3PIx6wIAK6uArdBZsIZ7X/scghd0V/n plGQh4F9hP6eH+KswojkKBLVrwCIzE92ShOuC+nTkhPL53LsbOMKpF4DuWtPebep ghc6TGcblzqlUVurbLI2niqp3rZ5W3CNY9UQRAG67N3QVI5cCcwsoPjFgoFRruWn NrS9xj1WROPY+ZpCK7GICUmpN0SOWx+hYtBMcYY7PIvpQ4hpwMTbLED65gQz99ux Gk4+NS8SPt4FulH0YgdGgTZqG6nWMuyYQGuPtqA1WHiIakcVzfGNEJkNtcfyhu1c jrDcpm8JNyEtP6gc4ZzYnMAZpgp7/VFo3NCwAzEJ59mEJvabB/lbAPOrneQaLwE= =xZJt -----END PGP SIGNATURE----- --W13SgbpmD6bhZUTM--