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Thu, 4 Mar 2021 04:09:54 +0000 To: "Melanie Plageman (Microsoft)" Cc: linux-scsi@vger.kernel.org, andres@anarazel.de, haiyangz@microsoft.com, jejb@linux.ibm.com, kys@microsoft.com, linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, martin.petersen@oracle.com, mikelley@microsoft.com, sthemmin@microsoft.com, wei.liu@kernel.org Subject: Re: [PATCH v4] scsi: storvsc: Parameterize number hardware queues From: "Martin K. 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X-MS-Exchange-AntiSpam-MessageData: =?us-ascii?Q?HdmFbHryyE0TuAPQnNVZio5nkde3D6gJslTmTaXBLUn6zg5Xi8ke91lqZwM4?= =?us-ascii?Q?ZCuIho5l7pRX14JIkf3HM+y8agLnFyrILoslzUMXecvWmOgAb9aS3a/PU057?= =?us-ascii?Q?9LYZukcR4p9T/UdxremEw9vo12UOLq4g4+JEfja//JDrkuvFH3QEMs645ZPr?= =?us-ascii?Q?KPk27dBohg6rnc5rKzkmiHlaW0uLrhP2kmbMIe2vpiCguNH8JPpgKJcaziUN?= =?us-ascii?Q?z7vOHTgxwwf6jpXXxDSrRDnQZ9JY6zl+FVM+J7LE5NxaeBtNFkZHafnScxuP?= =?us-ascii?Q?TwYXVertZR3sVvGXkcfrC7U69zpl3tT/a4zv/dduYR2RDhg0JZnNYsG2VkLC?= =?us-ascii?Q?DrwTbAKksTfG5VwOq3BIv6rZ2jtU2lPFzU6iJL3/y+lXZCARni+ZWYsUnD40?= =?us-ascii?Q?leBVnUQKVAEos/+NZzPe4Z/g91eD3j4Mi7QfFVG0DMfwXVrg3jxKvZ+s9Qe9?= =?us-ascii?Q?jZ+b55rBUeF4QlkqWu360WRhR2DJ4eJao4oP60g7YOFON++0YFWW49+ULyUX?= =?us-ascii?Q?RsYlButFlgucFTExsMWEFHGbhn6ZHmkg47hDtqeSopUE9cF95nMVSTHk9hRF?= =?us-ascii?Q?v9qwebTNBUcLrj9V04+985opzSijOWLwLblssU0jFtsJpuJV1ahazZyMBY2d?= =?us-ascii?Q?k1cqcwvMdNDPjqejvavaVir3gJaUxiqQsDqPYDML42/GioV2/AHIQrvfgVoU?= =?us-ascii?Q?HZ5UvuJIdUhB2R1kiZho9+Wn7In9ZrJ/EbKvOyqRJSMmSfQcXZjDZn3nw1Yi?= =?us-ascii?Q?Ial9w8oo9nR2RNJ9WyRkWTqoK8l2VhVBq1SrqRjYpQl4WFgZ3Fu7lvhtFWYz?= =?us-ascii?Q?eNcSDRMQYLyAFoRoMRdgRICRk7GdplUQCbHR98KPAgIXsCsh7JEXwiD1Dydj?= =?us-ascii?Q?Iyt4Gdzq0lkLKKKILfrFZ1A5Hhr3xTENI0GpWMhz0RZlMHKOWakp9DycghV9?= =?us-ascii?Q?+B5pOj6tbDDB1UJoURGfi5e3NsXeiUkIeKKHpmaeIsFCBq2yiurIhlVmnkHf?= =?us-ascii?Q?k87PMay/3Fi+zoDwpIvFugFyvUxY/7q/AcQi0l3VH2OaAWuz/uwMnYpY5a0B?= =?us-ascii?Q?hC8N7le/Op37fei+69z6w3l4BZcBjhhPc5DEX3p6uTd8CYeUwU7EU6jp/M7L?= =?us-ascii?Q?VjMJK0jqHcSycM6rqf9vSlbA8PIZUCSUE0v6jXwn5nG8gc4QGuJTKmgtBj57?= =?us-ascii?Q?43YGg2cLiRM2UKIq9TohNCfmcGU4RF9goR10fxLuzzWbnqW8Eo/MawVRZhD5?= =?us-ascii?Q?ucFu3DOTYllpclt+N7zK4V2XKN0KYGV3Df+KQnz6WfaVLfq+0mQzhv09DUOB?= =?us-ascii?Q?o6dqx6G8XmLse+xmezypsLcR?= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 57bc5805-2747-4a6a-06aa-08d8dec35daf X-MS-Exchange-CrossTenant-AuthSource: PH0PR10MB4759.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Mar 2021 04:09:54.6159 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: +agITHa2Z7NkIn/rrueI/asEXBlkswLO2APfbPuhbiPVJM/PPRGGMMOFlYGU+cgULvFzjISIiXflMRKeQKobZUstfloDTtQ/SSQtbCJ9MVw= X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR10MB4791 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9912 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 mlxscore=0 spamscore=0 bulkscore=0 suspectscore=0 mlxlogscore=959 phishscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2103040014 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9912 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 impostorscore=0 suspectscore=0 phishscore=0 bulkscore=0 mlxscore=0 lowpriorityscore=0 clxscore=1011 mlxlogscore=999 adultscore=0 malwarescore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2103040014 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Melanie, > Add ability to set the number of hardware queues with new module > parameter, storvsc_max_hw_queues. The default value remains the number > of CPUs. This functionality is useful in some environments > (e.g. Microsoft Azure) where decreasing the number of hardware queues > has been shown to improve performance. Applied to 5.13/scsi-staging, thanks! -- Martin K. Petersen Oracle Linux Engineering