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(http://salvagedrive.us8.list-manage.com/about?u=3D386= 68d8a390eaafe346aac8d5&id=3Db173b821c7&e=3Dc538f13530&c=3D6d11553fff) un= subscribe from this list (http://salvagedrive.us8.list-manage.com/unsubscr= ibe?u=3D38668d8a390eaafe346aac8d5&id=3Db173b821c7&e=3Dc538f13530&c=3D6d11553= fff) update subscription preferences (http://salvagedrive.us8.list-man= age1.com/profile?u=3D38668d8a390eaafe346aac8d5&id=3Db173b821c7&e=3D= c538f13530) Salvage Drive=2C Inc. =C2=B7 217 Broadway =C2=B7 Suite 505 =C2=B7 New York= =2C NY 10007 =C2=B7 USA From owner-freebsd-arch@FreeBSD.ORG Thu Feb 19 04:10:15 2015 Return-Path: Delivered-To: freebsd-arch@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 75FF24F2; Thu, 19 Feb 2015 04:10:15 +0000 (UTC) Received: from gold.funkthat.com (gate2.funkthat.com [208.87.223.18]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "gold.funkthat.com", Issuer "gold.funkthat.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 512A63B8; Thu, 19 Feb 2015 04:10:14 +0000 (UTC) Received: from gold.funkthat.com (localhost [127.0.0.1]) by gold.funkthat.com (8.14.5/8.14.5) with ESMTP id t1J4ACQI041145 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 18 Feb 2015 20:10:12 -0800 (PST) (envelope-from jmg@gold.funkthat.com) Received: (from jmg@localhost) by gold.funkthat.com (8.14.5/8.14.5/Submit) id t1J4ACaY041144; Wed, 18 Feb 2015 20:10:12 -0800 (PST) (envelope-from jmg) Date: Wed, 18 Feb 2015 20:10:12 -0800 From: John-Mark Gurney To: freebsd-arch@FreeBSD.org Subject: getting NUMA into the tree (userland most interesting for me) Message-ID: <20150219041012.GJ1953@funkthat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Operating-System: FreeBSD 9.1-PRERELEASE amd64 X-PGP-Fingerprint: 54BA 873B 6515 3F10 9E88 9322 9CB1 8F74 6D3F A396 X-Files: The truth is out there X-URL: http://resnet.uoregon.edu/~gurney_j/ X-Resume: http://resnet.uoregon.edu/~gurney_j/resume.html X-TipJar: bitcoin:13Qmb6AeTgQecazTWph4XasEsP7nGRbAPE X-to-the-FBI-CIA-and-NSA: HI! HOW YA DOIN? can i haz chizburger? User-Agent: Mutt/1.5.21 (2010-09-15) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (gold.funkthat.com [127.0.0.1]); Wed, 18 Feb 2015 20:10:12 -0800 (PST) Cc: alc@FreeBSD.org, kib@FreeBSD.org X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Feb 2015 04:10:15 -0000 I would like to help drive getting NUMA into the tree. Specificly, getting userland allocations to be done from a specified domain. I've looked at the projects/numa tree, but it appears that not much was done to get userland mappings to be NUMA aware. How are we going to do this? Do people have code to do this? I've looked at how Linux does this, at least from a programming interface. They use mmap to create the mapping, and then use the call mbind to tell the kernel where to handle the allocations. Is this what people are thinking? I've checked the wiki status, and the userland section is quite empty. Thanks. -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."