From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35436) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bXUsW-0006e9-5P for qemu-devel@nongnu.org; Wed, 10 Aug 2016 10:53:09 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bXUsR-0006FL-EN for qemu-devel@nongnu.org; Wed, 10 Aug 2016 10:53:07 -0400 Received: from mx1.redhat.com ([209.132.183.28]:57152) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bXUsR-0006FB-8N for qemu-devel@nongnu.org; Wed, 10 Aug 2016 10:53:03 -0400 Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C86316266E for ; Wed, 10 Aug 2016 14:53:02 +0000 (UTC) Date: Wed, 10 Aug 2016 15:52:58 +0100 From: "Daniel P. Berrange" Message-ID: <20160810145258.GQ13393@redhat.com> Reply-To: "Daniel P. Berrange" References: <1470756748-18933-1-git-send-email-berrange@redhat.com> <878tw4u3cd.fsf@fimbulvetr.bsc.es> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <878tw4u3cd.fsf@fimbulvetr.bsc.es> Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] [PATCH for-2.8 v1 00/60] Modular build of trace event files List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, Stefan Hajnoczi On Wed, Aug 10, 2016 at 04:05:06PM +0200, Llu=C3=ADs Vilanova wrote: > Daniel P Berrange writes: >=20 > > I previously split the global trace-events file up into one file > > per-subdirectory to avoid merge conflict hell. >=20 > > This series builds on that to now actually generate the individual > > trace files per-subdirectory too. The key benefit of doing this is > > that a change in a trace-events file will no longer cause a rebuild > > of the entire world. Instead only that one affected sub-directory > > will have files rebuilt. >=20 > Is re-compilation time worth the effort? Absolutely yes, especially if you have build for multiple targets enabled. Rebuilding all files when you have all 30+ targets enabled takes an incredibly long time. Regards, Daniel --=20 |: http://berrange.com -o- http://www.flickr.com/photos/dberrange= / :| |: http://libvirt.org -o- http://virt-manager.or= g :| |: http://autobuild.org -o- http://search.cpan.org/~danberr= / :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vn= c :|