From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261914AbVBOWNJ (ORCPT ); Tue, 15 Feb 2005 17:13:09 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261915AbVBOWNI (ORCPT ); Tue, 15 Feb 2005 17:13:08 -0500 Received: from omx2-ext.sgi.com ([192.48.171.19]:65233 "EHLO omx2.sgi.com") by vger.kernel.org with ESMTP id S261914AbVBOWNF (ORCPT ); Tue, 15 Feb 2005 17:13:05 -0500 Date: Tue, 15 Feb 2005 14:10:22 -0800 From: Paul Jackson To: Peter Chubb Cc: holt@sgi.com, haveblue@us.ibm.com, raybry@sgi.com, taka@valinux.co.jp, hugh@veritas.com, akpm@osdl.org, marcello@cyclades.com, raybry@austin.rr.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [RFC 2.6.11-rc2-mm2 7/7] mm: manual page migration -- sys_page_migrate Message-Id: <20050215141022.3b99df87.pj@sgi.com> In-Reply-To: <16914.28795.316835.291470@wombat.chubb.wattle.id.au> References: <20050212032535.18524.12046.26397@tomahawk.engr.sgi.com> <20050212032620.18524.15178.29731@tomahawk.engr.sgi.com> <1108242262.6154.39.camel@localhost> <20050214135221.GA20511@lnx-holt.americas.sgi.com> <1108407043.6154.49.camel@localhost> <20050214220148.GA11832@lnx-holt.americas.sgi.com> <20050215074906.01439d4e.pj@sgi.com> <20050215162135.GA22646@lnx-holt.americas.sgi.com> <20050215083529.2f80c294.pj@sgi.com> <20050215185943.GA24401@lnx-holt.americas.sgi.com> <16914.28795.316835.291470@wombat.chubb.wattle.id.au> Organization: SGI X-Mailer: Sylpheed version 1.0.0 (GTK+ 1.2.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Dr Peter Chubb writes: > Can page migration be done lazily, instead of all at once? That might be a useful option. Not my area to comment on. We would also require, at least as an option, to be able to force the migration on demand. Some of our big honkin iron parallel jobs run with a high degree of parallelism, and nearly saturate each node being used. For jobs like that, it can be better to get everything in place, before resuming execution. -- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson 1.650.933.1373, 1.925.600.0401 From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 15 Feb 2005 14:10:22 -0800 From: Paul Jackson Subject: Re: [RFC 2.6.11-rc2-mm2 7/7] mm: manual page migration -- sys_page_migrate Message-Id: <20050215141022.3b99df87.pj@sgi.com> In-Reply-To: <16914.28795.316835.291470@wombat.chubb.wattle.id.au> References: <20050212032535.18524.12046.26397@tomahawk.engr.sgi.com> <20050212032620.18524.15178.29731@tomahawk.engr.sgi.com> <1108242262.6154.39.camel@localhost> <20050214135221.GA20511@lnx-holt.americas.sgi.com> <1108407043.6154.49.camel@localhost> <20050214220148.GA11832@lnx-holt.americas.sgi.com> <20050215074906.01439d4e.pj@sgi.com> <20050215162135.GA22646@lnx-holt.americas.sgi.com> <20050215083529.2f80c294.pj@sgi.com> <20050215185943.GA24401@lnx-holt.americas.sgi.com> <16914.28795.316835.291470@wombat.chubb.wattle.id.au> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Peter Chubb Cc: holt@sgi.com, haveblue@us.ibm.com, raybry@sgi.com, taka@valinux.co.jp, hugh@veritas.com, akpm@osdl.org, marcello@cyclades.com, raybry@austin.rr.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: Dr Peter Chubb writes: > Can page migration be done lazily, instead of all at once? That might be a useful option. Not my area to comment on. We would also require, at least as an option, to be able to force the migration on demand. Some of our big honkin iron parallel jobs run with a high degree of parallelism, and nearly saturate each node being used. For jobs like that, it can be better to get everything in place, before resuming execution. -- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson 1.650.933.1373, 1.925.600.0401 -- 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: aart@kvack.org