From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E33E1C7EE45 for ; Fri, 9 Jun 2023 15:15:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239375AbjFIPPR (ORCPT ); Fri, 9 Jun 2023 11:15:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51830 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241421AbjFIPO4 (ORCPT ); Fri, 9 Jun 2023 11:14:56 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BD9961BEB; Fri, 9 Jun 2023 08:14:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Sender:Reply-To:Content-ID:Content-Description; bh=qRoRB9LqgHqWDFDF0Ktxl0tnrELoeJDzkvYu8iL5AeE=; b=bLibIrX1fyW22CJooeGMpoNHLY TkFmYNm9ycUXxc2ArHMOzlePXf7ZanvcTvwzcB5YflwBKgR7/hBAr8/UlVllNeDdWtHN9wpQGCAJ3 VA+6y/DKr7Dtp/CHAKcnYR3AYc7SC9fRNsgk7XDGIV4602EVG0vFFUPZyC2WIehNfCRi7ldhWBjdY +P1CL1msa85/qtliC7BBb6Am+8YEn0r1/pNLZ05Y7OP5V3eHJ62Nt+wtbR63gXdFjupoE2HdOSaag VJ+ZYrKfTgjm6ZQXdRBjSwGJRjx2DV87l5pGI32TVsjqhAWAMg3cGppMZiSZ+KftHdE9ZWtTlDCne D1rhbIQQ==; Received: from [2601:1c2:980:9ec0::2764] by bombadil.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1q7dpE-00DOg9-2p; Fri, 09 Jun 2023 15:14:52 +0000 Message-ID: <92c0209a-ba4e-0b8a-a4dd-6077a75d3378@infradead.org> Date: Fri, 9 Jun 2023 08:14:49 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.2 Subject: Re: [RFC] [kbuild test robot] random-order parallel building Content-Language: en-US To: "Liu, Yujie" , "masahiroy@kernel.org" Cc: "Li, Philip" , "linux-kbuild@vger.kernel.org" , lkp , "linux-kernel@vger.kernel.org" References: <7403dd164cff7d9217999cddb66135db47564c4b.camel@intel.com> From: Randy Dunlap In-Reply-To: <7403dd164cff7d9217999cddb66135db47564c4b.camel@intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/9/23 01:41, Liu, Yujie wrote: > Hi Masahiro, > > On Fri, 2023-05-12 at 15:09 +0800, Philip Li wrote: >> On Fri, May 12, 2023 at 12:25:13PM +0900, Masahiro Yamada wrote: >>> Hello, maintainers of the kbuild test robot. >>> >>> I have a proposal for the 0day tests. >> Thanks a lot for the proposal for the shuffle make, we will do some >> investigation to try this random order parallel build. The gnu make >> we currently use is 4.3, we will try the 4.4 to see any problem. >> >> For the timeline, we may provide update later this month. > We've upgraded to make v4.4.1 in kernel test robot and enabled random- > order parallel compiling in our randconfig build tests. The shuffle > seed is generated by hashing the randconfig, so it changes overtime and > can cover various random orders. We are still doing some internal > testing and will put it online once everything is done. > I have also been using it since this proposal was submitted. I haven't seen any issues with it. thanks. -- ~Randy