From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932900AbcHCUpl (ORCPT ); Wed, 3 Aug 2016 16:45:41 -0400 Received: from gate.crashing.org ([63.228.1.57]:38086 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932734AbcHCUp0 (ORCPT ); Wed, 3 Aug 2016 16:45:26 -0400 Date: Wed, 3 Aug 2016 14:44:29 -0500 From: Segher Boessenkool To: Arnd Bergmann Cc: Nicholas Piggin , Stephen Rothwell , "linux-kernel@vger.kernel.org" , "Luis R. Rodriguez" , linux-next@vger.kernel.org, Paul Mackerras , Fengguang Wu , linuxppc-dev@lists.ozlabs.org, Guenter Roeck Subject: Re: powerpc allyesconfig / allmodconfig linux-next next-20160729 - next-20160729 build failures Message-ID: <20160803194429.GA14627@gate.crashing.org> References: <5216072.9VpDc0iy8Q@wuerfel> <20160804013729.7fffa45a@roar.ozlabs.ibm.com> <3892328.nUGXIq3MaH@wuerfel> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3892328.nUGXIq3MaH@wuerfel> User-Agent: Mutt/1.4.2.3i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Arnd, On Wed, Aug 03, 2016 at 08:52:48PM +0200, Arnd Bergmann wrote: > From my first look, it seems that all of lib/*.o is now getting linked > into vmlinux, while we traditionally leave out everything from lib/ > that is not referenced. > > I also see a noticeable overhead in link time, the numbers are for > a cache-hot rebuild after a successful allyesconfig build, using a > 24-way Opteron@2.5Ghz, just relinking vmlinux: > > $ time make skj30 vmlinux # before > real 2m8.092s > user 3m41.008s > sys 0m48.172s > > $ time make skj30 vmlinux # after > real 4m10.189s > user 5m43.804s > sys 0m52.988s Is it better when using rcT instead of rcsT? Segher