From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ie0-f176.google.com (mail-ie0-f176.google.com [209.85.223.176]) by kanga.kvack.org (Postfix) with ESMTP id 1A8A96B0032 for ; Fri, 24 Apr 2015 10:09:14 -0400 (EDT) Received: by iebrs15 with SMTP id rs15so84294035ieb.3 for ; Fri, 24 Apr 2015 07:09:13 -0700 (PDT) Received: from resqmta-ch2-01v.sys.comcast.net (resqmta-ch2-01v.sys.comcast.net. [2001:558:fe21:29:69:252:207:33]) by mx.google.com with ESMTPS id i6si2130522igu.6.2015.04.24.07.09.13 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Fri, 24 Apr 2015 07:09:13 -0700 (PDT) Date: Fri, 24 Apr 2015 09:09:12 -0500 (CDT) From: Christoph Lameter Subject: Re: Interacting with coherent memory on external devices In-Reply-To: <55390EE1.8020304@gmail.com> Message-ID: References: <20150421214445.GA29093@linux.vnet.ibm.com> <20150422000538.GB6046@gmail.com> <20150422131832.GU5561@linux.vnet.ibm.com> <1429756200.4915.19.camel@kernel.crashing.org> <55390EE1.8020304@gmail.com> Content-Type: TEXT/PLAIN; CHARSET=US-ASCII; FORMAT=flowed Content-ID: Sender: owner-linux-mm@kvack.org List-ID: To: Austin S Hemmelgarn Cc: Benjamin Herrenschmidt , "Paul E. McKenney" , Jerome Glisse , linux-kernel@vger.kernel.org, linux-mm@kvack.org, jglisse@redhat.com, mgorman@suse.de, aarcange@redhat.com, riel@redhat.com, airlied@redhat.com, aneesh.kumar@linux.vnet.ibm.com, Cameron Buschardt , Mark Hairgrove , Geoffrey Gerfin , John McKenna , akpm@linux-foundation.org On Thu, 23 Apr 2015, Austin S Hemmelgarn wrote: > Looking at this whole conversation, all I see is two different views on how to > present the asymmetric multiprocessing arrangements that have become > commonplace in today's systems to userspace. Your model favors performance, > while CAPI favors simplicity for userspace. Oww. No performance just simplicity? Really? The simplification of the memory registration for Infiniband etc is certainly useful and I hope to see contributions on that going into the kernel. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org