From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on archive.lwn.net X-Spam-Level: X-Spam-Status: No, score=-5.7 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by archive.lwn.net (Postfix) with ESMTP id C209E7D2F0 for ; Tue, 1 Oct 2019 12:39:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726463AbfJAMjv (ORCPT ); Tue, 1 Oct 2019 08:39:51 -0400 Received: from ms.lwn.net ([45.79.88.28]:36350 "EHLO ms.lwn.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725821AbfJAMjv (ORCPT ); Tue, 1 Oct 2019 08:39:51 -0400 Received: from lwn.net (localhost [127.0.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ms.lwn.net (Postfix) with ESMTPSA id A94F52CF; Tue, 1 Oct 2019 12:39:50 +0000 (UTC) Date: Tue, 1 Oct 2019 06:39:49 -0600 From: Jonathan Corbet To: Kees Cook Cc: Mauro Carvalho Chehab , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3] docs: Use make invocation's -j argument for parallelism Message-ID: <20191001063949.1b5e87dc@lwn.net> In-Reply-To: <201909241627.CEA19509@keescook> References: <201909241627.CEA19509@keescook> Organization: LWN.net MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-doc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org On Tue, 24 Sep 2019 16:29:58 -0700 Kees Cook wrote: > While sphinx 1.7 and later supports "-jauto" for parallelism, this > effectively ignores the "-j" flag used in the "make" invocation, which > may cause confusion for build systems. Instead, extract the available > parallelism from "make"'s job server (since it is not exposed in any > special variables) and use that for the "sphinx-build" run. Now things > work correctly for builds where -j is specified at the top-level: > > make -j16 htmldocs > > If -j is not specified, continue to fallback to "-jauto" if available. > > Signed-off-by: Kees Cook I finally messed with this a bit; it seems to do exactly what's written on the box. It seems to me that The Real Solution™ here is to send a patch to the Sphinx folks adding a "-jgmake" (or some such) option. It also seems to me that none of us is likely to get around to that in the near future. So I just applied this, thanks for dealing with all my picky comments... jon