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AUTH (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-65-mtqKR3EKMBK8ro9nsESItw-1; Thu, 16 Nov 2023 22:53:39 +0000 X-MC-Unique: mtqKR3EKMBK8ro9nsESItw-1 Received: from AcuMS.Aculab.com (10.202.163.4) by AcuMS.aculab.com (10.202.163.4) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Thu, 16 Nov 2023 22:53:47 +0000 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.048; Thu, 16 Nov 2023 22:53:47 +0000 From: David Laight To: 'Linus Torvalds' CC: David Howells , Borislav Petkov , kernel test robot , "oe-lkp@lists.linux.dev" , "lkp@intel.com" , "linux-kernel@vger.kernel.org" , "Christian Brauner" , Alexander Viro , "Jens Axboe" , Christoph Hellwig , Christian Brauner , Matthew Wilcox , "ying.huang@intel.com" , "feng.tang@intel.com" , "fengwei.yin@intel.com" Subject: RE: [linus:master] [iov_iter] c9eec08bac: vm-scalability.throughput -16.9% regression Thread-Topic: [linus:master] [iov_iter] c9eec08bac: vm-scalability.throughput -16.9% regression Thread-Index: AQHaGDzAFfqMOen5JUCwmbDFX2u0nbB9JNQQgAAOVwCAAEjLIA== Date: Thu, 16 Nov 2023 22:53:47 +0000 Message-ID: References: <202311061616.cd495695-oliver.sang@intel.com> <3865842.1700061614@warthog.procyon.org.uk> <4097023.1700084620@warthog.procyon.org.uk> <42895.1700089191@warthog.procyon.org.uk> <4cfd4808cc694f169aa8b83547ebc74d@AcuMS.aculab.com> In-Reply-To: Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogTGludXMgVG9ydmFsZHMNCj4gU2VudDogMTYgTm92ZW1iZXIgMjAyMyAxNzoyNQ0KLi4u DQo+ID4gSG93IG11Y2ggZGlmZmVyZW5jZSBkb2VzIEZTUk0gYWN0dWFsbHkgbWFrZT8NCj4gPiBF 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