Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753341AbaKCSWf (ORCPT ); Mon, 3 Nov 2014 13:22:35 -0500 Received: from a.ns.miles-group.at ([95.130.255.143]:65275 "EHLO radon.swed.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752681AbaKCSWd (ORCPT ); Mon, 3 Nov 2014 13:22:33 -0500 Message-ID: <5457C7E3.9000104@nod.at> Date: Mon, 03 Nov 2014 19:22:27 +0100 From: Richard Weinberger User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.0 MIME-Version: 1.0 To: Ezequiel Garcia , Ming Lei CC: Christoph Hellwig , Jens Axboe , dedekind1@gmail.com, David Woodhouse , computersforpeace@gmail.com, "linux-mtd@lists.infradead.org" , Linux Kernel Mailing List Subject: Re: [PATCH] UBI: Block: Add blk-mq support References: <1414933255-3795-1-git-send-email-richard@nod.at> <545789F8.1060401@free-electrons.com> In-Reply-To: <545789F8.1060401@free-electrons.com> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="qGAgqvhehk6hdkudpXXcWivT7L51nsl8i" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --qGAgqvhehk6hdkudpXXcWivT7L51nsl8i Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Am 03.11.2014 um 14:58 schrieb Ezequiel Garcia: > On 11/03/2014 02:03 AM, Ming Lei wrote: >> On Sun, Nov 2, 2014 at 9:00 PM, Richard Weinberger wr= ote: >>> Convert the driver to blk-mq. >> >> It is always helpful to include some performance comparison data( >> randrw, rw) between blk-mq and non-mq. >> >=20 > UBI block support is read-only for now so you'll be able to run read > tests only. >=20 > Richard: If at all possible, it would be interested to so some > performance tests on *real* devices, not only RAM-based ones. Sure. There you go: nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xda nand: Micron NAND 256MiB 3,3V 8-bit nand: 256MiB, SLC, page size: 2048, OOB size: 64 root@debian-armhf:~# dd if=3D/dev/ubiblock0_0 of=3D/dev/zero bs=3D1M 243+1 records in 243+1 records out 255080448 bytes (255 MB) copied, 4.39295 s, 58.1 MB/s vs. root@debian-armhf:~# dd if=3D/dev/ubiblock0_0 of=3D/dev/zero bs=3D1M 243+1 records in 243+1 records out 255080448 bytes (255 MB) copied, 2.87676 s, 88.7 MB/s Thanks, //richard --qGAgqvhehk6hdkudpXXcWivT7L51nsl8i Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAEBAgAGBQJUV8fjAAoJEPmeIjfg4UaasggQAIpShvGmW0Pggfcy3T7Y/1aX jBaJLvzsvGdNObiXzpUoi88FMqUVWW819OIVU2OkJwzevgC852aN3ac6C9DnklBI +hOFI9jRjtxlnb6s8VZr/kqIUH63U8G4Zu7CzVJSUhVNHYfsfwckrr0gzz7Z4rNw QOJcP2gZiVfJQnfXsowFkDlDDoH16qoYcNDGFs1gSur/MKnAU4ivywk6sFq/loj+ dt9eTNUPvyZKRxxq/Gnf/vPhSxnDMJgBOVcyvhj2zNPN8eV6gkJC5KNqN08sszLm jtlVK8n9JbXMRDDRg6bXWpEl3sQ8tOv8eVZ0P+BU+YSW05LT1Jwf+Ljur2lyJ6eo NFlMwNL0YDFi/RL9HZvmncQj4PHu4jrQIHw8vRZ0eiI/oEXsJx8a5zfnm0kgANS5 lRvLvJsZ166NZjJaFmzrrE+cj7Cn9VzRy7Yv4Cg/4BqDYfT8VvRjkWMHdXF2jj3D lV2NMcKbbSDjP38D5fYVLnpxPRqNAW92ZZBqUphcuvp6ajcyXSinCuEGuI8k9YMj BAmgvY59Jv41p9exq0Z4Zk5GVrNlJxC9j9lXd+ii6UKUjgtTjuXaXQSKMaIbiWHY VxFcvTzU7OcLE7NZVkywUaLT2N0gIzcVeyh+oDLAdv133VXNc2Cav50wRjug4d4b /mWZbd65YN+N70vtZY98 =0Yfo -----END PGP SIGNATURE----- --qGAgqvhehk6hdkudpXXcWivT7L51nsl8i-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/