Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755471AbaDAX4o (ORCPT ); Tue, 1 Apr 2014 19:56:44 -0400 Received: from mail-oa0-f46.google.com ([209.85.219.46]:56786 "EHLO mail-oa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755425AbaDAX4j (ORCPT ); Tue, 1 Apr 2014 19:56:39 -0400 MIME-Version: 1.0 In-Reply-To: <1396394931.25314.34.camel@buesod1.americas.hpqcorp.net> References: <1396235199.2507.2.camel@buesod1.americas.hpqcorp.net> <20140331143217.c6ff958e1fd9944d78507418@linux-foundation.org> <1396306773.18499.22.camel@buesod1.americas.hpqcorp.net> <20140331161308.6510381345cb9a1b419d5ec0@linux-foundation.org> <1396308332.18499.25.camel@buesod1.americas.hpqcorp.net> <20140331170546.3b3e72f0.akpm@linux-foundation.org> <1396371699.25314.11.camel@buesod1.americas.hpqcorp.net> <1396377083.25314.17.camel@buesod1.americas.hpqcorp.net> <1396386062.25314.24.camel@buesod1.americas.hpqcorp.net> <20140401142947.927642a408d84df27d581e36@linux-foundation.org> <20140401144801.603c288674ab8f417b42a043@linux-foundation.org> <1396394931.25314.34.camel@buesod1.americas.hpqcorp.net> From: KOSAKI Motohiro Date: Tue, 1 Apr 2014 19:56:18 -0400 Message-ID: Subject: Re: [PATCH] ipc,shm: increase default size for shmmax To: Davidlohr Bueso Cc: Andrew Morton , Manfred Spraul , aswin@hp.com, LKML , "linux-mm@kvack.org" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >> > Ah-hah, that's interesting info. >> > >> > Let's make the default 64GB? >> >> 64GB is infinity at that time, but it no longer near infinity today. I like >> very large or total memory proportional number. > > So I still like 0 for unlimited. Nice, clean and much easier to look at > than ULONG_MAX. And since we cannot disable shm through SHMMIN, I really > don't see any disadvantages, as opposed to some other arbitrary value. > Furthermore it wouldn't break userspace: any existing sysctl would > continue to work, and if not set, the user never has to worry about this > tunable again. > > Please let me know if you all agree with this... Surething. Why not. :) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/