From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ingo Molnar <mingo@kernel.org>
Subject: Re: [PATCH 5/7] kvm tools: enable LTO
Date: Thu, 30 Aug 2012 10:16:54 +0200
Message-ID: <20120830081654.GA3741@gmail.com>
References: <1346312203-29456-1-git-send-email-levinsasha928@gmail.com>
 <1346312203-29456-5-git-send-email-levinsasha928@gmail.com>
 <CAOJsxLHTKXUjAv82DfXZUX+1SayDGwQFbGLQWG3rg9HmcAzngA@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Cc: Sasha Levin <levinsasha928@gmail.com>, asias.hejun@gmail.com,
	mingo@elte.hu, gorcunov@openvz.org, kvm@vger.kernel.org
To: Pekka Enberg <penberg@kernel.org>
Return-path: <kvm-owner@vger.kernel.org>
Received: from mail-bk0-f46.google.com ([209.85.214.46]:46259 "EHLO
	mail-bk0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1752584Ab2H3IRE (ORCPT <rfc822;kvm@vger.kernel.org>);
	Thu, 30 Aug 2012 04:17:04 -0400
Received: by bkwj10 with SMTP id j10so658224bkw.19
        for <kvm@vger.kernel.org>; Thu, 30 Aug 2012 01:17:02 -0700 (PDT)
Content-Disposition: inline
In-Reply-To: <CAOJsxLHTKXUjAv82DfXZUX+1SayDGwQFbGLQWG3rg9HmcAzngA@mail.gmail.com>
Sender: kvm-owner@vger.kernel.org
List-ID: <kvm.vger.kernel.org>


* Pekka Enberg <penberg@kernel.org> wrote:

> On Thu, Aug 30, 2012 at 10:36 AM, Sasha Levin <levinsasha928@gmail.com> wrote:
> > Build with -flto set, which should enable link-time-optimizations.
> >
> > I'm not sure if it provides a significant performance increase, but
> > it's probably just worth it for catching issues which it may cause.
> >
> > Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
> 
> Ingo, any objections to this?

No objections if you can live with a 2x-4x increase in build 
time - at worst it might cause funnies with the BIOS linker 
script and such.

Thanks,

	Ingo