From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57206) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fAWtE-0004lM-Gm for qemu-devel@nongnu.org; Mon, 23 Apr 2018 04:32:06 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fAWt7-00034d-6D for qemu-devel@nongnu.org; Mon, 23 Apr 2018 04:31:58 -0400 Message-ID: <1524472299.3017.20.camel@redhat.com> From: Andrea Bolognani Date: Mon, 23 Apr 2018 10:31:39 +0200 In-Reply-To: <20180420102117.GQ2434@umbus.fritz.box> References: <20180419062917.31486-1-david@gibson.dropbear.id.au> <1524151804.3017.9.camel@redhat.com> <20180420023542.GD2434@umbus.fritz.box> <1524216670.3017.11.camel@redhat.com> <20180420102117.GQ2434@umbus.fritz.box> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [RFC for-2.13 0/7] spapr: Clean up pagesize handling List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: David Gibson Cc: groug@kaod.org, aik@ozlabs.ru, qemu-ppc@nongnu.org, qemu-devel@nongnu.org, clg@kaod.org On Fri, 2018-04-20 at 20:21 +1000, David Gibson wrote: > On Fri, Apr 20, 2018 at 11:31:10AM +0200, Andrea Bolognani wrote: > > I'll check out what other distros are doing: if all the major ones > > are defaulting to 64 KiB pages these days, it might be reasonable > > to do the same and pretend smaller page sizes don't exist at all in > > order to avoid the pain of having to tweak yet another knob, even > > if that means leaving people compiling their own custom kernels > > with 4 KiB page size in the dust. > > That's my guess. I just checked RHEL 7, Fedora 27, OpenSUSE Leap 42.3, Debian 9 and Ubuntu 16.04: they all use 64 KiB pages, so I'd conclude leaving out 4 KiB pages support is basically a non-issue. -- Andrea Bolognani / Red Hat / Virtualization