From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qc0-f171.google.com (mail-qc0-f171.google.com [209.85.216.171]) by kanga.kvack.org (Postfix) with ESMTP id B39676B0031 for ; Tue, 11 Feb 2014 15:39:59 -0500 (EST) Received: by mail-qc0-f171.google.com with SMTP id n7so13877261qcx.2 for ; Tue, 11 Feb 2014 12:39:59 -0800 (PST) Received: from mx1.redhat.com (mx1.redhat.com. [209.132.183.28]) by mx.google.com with ESMTP id a3si13369942qam.186.2014.02.11.12.39.57 for ; Tue, 11 Feb 2014 12:39:57 -0800 (PST) Date: Tue, 11 Feb 2014 18:15:57 -0200 From: Marcelo Tosatti Subject: Re: [PATCH 0/4] hugetlb: add hugepagesnid= command-line option Message-ID: <20140211201557.GA16281@amt.cnet> References: <1392053268-29239-1-git-send-email-lcapitulino@redhat.com> <20140211092514.GH6732@suse.de> <20140211152629.GA28210@amt.cnet> <20140211171035.GN6732@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140211171035.GN6732@suse.de> Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: David Rientjes , Luiz Capitulino , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrew Morton , Andrea Arcangeli , Andi Kleen , Rik van Riel On Tue, Feb 11, 2014 at 05:10:35PM +0000, Mel Gorman wrote: > On Tue, Feb 11, 2014 at 01:26:29PM -0200, Marcelo Tosatti wrote: > > > Or take a stab at allocating 1G pages at runtime. It would require > > > finding properly aligned 1Gs worth of contiguous MAX_ORDER_NR_PAGES at > > > runtime. I would expect it would only work very early in the lifetime of > > > the system but if the user is willing to use kernel parameters to > > > allocate them then it should not be an issue. > > > > Can be an improvement on top of the current patchset? Certain use-cases > > require allocation guarantees (even if that requires kernel parameters). > > > > Sure, they're not mutually exclusive. It would just avoid the need to > create a new kernel parameter and use the existing interfaces. Yes, the problem is there is no guarantee is there? -- 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