Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756209Ab3I3TJp (ORCPT ); Mon, 30 Sep 2013 15:09:45 -0400 Received: from mail-ee0-f51.google.com ([74.125.83.51]:38281 "EHLO mail-ee0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756118Ab3I3TJn (ORCPT ); Mon, 30 Sep 2013 15:09:43 -0400 Date: Mon, 30 Sep 2013 21:09:39 +0200 From: Ingo Molnar To: Arnaldo Carvalho de Melo Cc: David Ahern , Linus Torvalds , Linux Kernel Mailing List , Peter Zijlstra , Thomas Gleixner , Andrew Morton , Jiri Olsa , Namhyung Kim Subject: Re: [PATCH] perf auto-dep: Speed up feature tests by building them in parallel Message-ID: <20130930190939.GC3427@gmail.com> References: <20130912184341.GA11400@ghostprotocols.net> <52321CE4.1080804@gmail.com> <20130912200236.GC11400@ghostprotocols.net> <20130912203116.GD32644@gmail.com> <20130912204313.GA3259@gmail.com> <20130915091029.GA21465@gmail.com> <20130930164210.GA22342@gmail.com> <20130930171220.GC10293@ghostprotocols.net> <20130930172741.GD10293@ghostprotocols.net> <20130930173052.GE10293@ghostprotocols.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130930173052.GE10293@ghostprotocols.net> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1531 Lines: 45 * Arnaldo Carvalho de Melo wrote: > Em Mon, Sep 30, 2013 at 02:27:41PM -0300, Arnaldo Carvalho de Melo escreveu: > > Em Mon, Sep 30, 2013 at 02:12:20PM -0300, Arnaldo Carvalho de Melo escreveu: > > > Em Mon, Sep 30, 2013 at 06:42:10PM +0200, Ingo Molnar escreveu: > > > > This series (with combo patch attached) implements (much) faster > > > > perf-tools feature-auto-detection. > > > > Cool stuff! > > > > Testing: > > > Removed python-devel and it correctly turned those off: > > ... libpython: [ OFF ] > ... libpython-version: [ OFF ] > > One possible way to speed this up a bit more would be to somehow state > that if the test A fails, then don't even bother testing test B, like in > the case above. Yeah, that's possible in a way, I did it in another case, see how the 'bionic' test for Android libc gets executed separately (but still unconditionally - we should probably only execute it if the libc test fails). The 'FEATURE_TESTS' variable holds the 'flat' list of features that we want to definitely test. Also, if glibc test passes then perhaps the strlcpy() test does not have to be executed at all. In the initial version I wanted to maintain the existing feature dependency. Thanks, Ingo -- 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/