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Wed, 3 Feb 2021 02:49:55 +0000 Date: Tue, 2 Feb 2021 18:49:51 -0800 From: Roman Gushchin To: "Xing, Zhengjun" CC: kernel test robot , Johannes Weiner , Andrew Morton , Vlastimil Babka , Shakeel Butt , Christoph Lameter , Michal Hocko , Tejun Heo , Linus Torvalds , LKML , , Subject: Re: [LKP] Re: [mm] 10befea91b: hackbench.throughput -62.4% regression Message-ID: <20210203024951.GA1837780@carbon.DHCP.thefacebook.com> References: <20210114025151.GA22932@xsang-OptiPlex-9020> <20210114031839.GA415540@carbon.dhcp.thefacebook.com> <59b6fda7-509a-0afb-112d-46c1e73c589b@intel.com> Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <59b6fda7-509a-0afb-112d-46c1e73c589b@intel.com> X-Originating-IP: [2620:10d:c090:400::5:65c1] X-ClientProxiedBy: CO2PR06CA0059.namprd06.prod.outlook.com (2603:10b6:104:3::17) To BYAPR15MB4136.namprd15.prod.outlook.com (2603:10b6:a03:96::24) X-MS-Exchange-MessageSentRepresentingType: 1 Received: from carbon.DHCP.thefacebook.com (2620:10d:c090:400::5:65c1) by CO2PR06CA0059.namprd06.prod.outlook.com (2603:10b6:104:3::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3825.17 via Frontend Transport; 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Hm, so in your setup it's about the same with and without this commit? It's strange because I've received a letter stating a 45.2% improvement recently: https://lkml.org/lkml/2021/1/27/83 Thanks!