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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: cce33ccd-a861-46f3-2435-08d63f5de72e X-MS-Exchange-CrossTenant-originalarrivaltime: 31 Oct 2018 18:23:07.0249 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR1201MB0237 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Tested with fio on a 2 socket AMD EPYC based server with 128 cores and 8 nv= me drives. Comparing baseline linux-next kernel results with linux-next wi= th this patch applied IOPS increased by 40%.=20 sudo fio --bs=3D4k --ioengine=3Dlibaio --iodepth=3D16 --filename=3D/dev/nvm= e1n1:/dev/nvme2n1:/dev/nvme3n1:/dev/nvme4n1:/dev/nvme5n1:/dev/nvme6n1:/dev/= nvme7n1:/dev/nvme8n1 --direct=3D1 --runtime=3D60 --numjobs=3D160 --rw=3Dran= dread --name=3Dtest --group_reporting Tested-by: Sherry Hurwitz