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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2F8BAC433EF for ; Sun, 14 Nov 2021 13:01:31 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A2D4E604D7 for ; Sun, 14 Nov 2021 13:01:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org A2D4E604D7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=buildroot.org Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id 7616F80D7F; Sun, 14 Nov 2021 13:01:30 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id sNp0yG2dwfSw; Sun, 14 Nov 2021 13:01:29 +0000 (UTC) Received: from ash.osuosl.org (ash.osuosl.org [140.211.166.34]) by smtp1.osuosl.org (Postfix) with ESMTP id D298D80D6F; Sun, 14 Nov 2021 13:01:28 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by ash.osuosl.org (Postfix) with ESMTP id E15AD1BF228 for ; Sun, 14 Nov 2021 13:01:27 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id CBF924019D for ; Sun, 14 Nov 2021 13:01:27 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id GY4a75443PmR for ; Sun, 14 Nov 2021 13:01:27 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [217.70.183.194]) by smtp2.osuosl.org (Postfix) with ESMTPS id AB5484015A for ; Sun, 14 Nov 2021 13:01:26 +0000 (UTC) Received: (Authenticated sender: thomas.petazzoni@bootlin.com) by relay2-d.mail.gandi.net (Postfix) with ESMTPSA id BE94B40003; Sun, 14 Nov 2021 13:01:24 +0000 (UTC) Date: Sun, 14 Nov 2021 14:01:23 +0100 From: Thomas Petazzoni To: Peter Korsgaard Message-ID: <20211114140123.77bcde89@windsurf> In-Reply-To: <87mtm6ykb8.fsf@dell.be.48ers.dk> References: <20211113141703.1124706-1-thomas.petazzoni@bootlin.com> <87mtm6ykb8.fsf@dell.be.48ers.dk> Organization: Bootlin X-Mailer: Claws Mail 3.18.0 (GTK+ 2.24.33; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Subject: Re: [Buildroot] [PATCH] utils/genrandconfig: reduce the maximum "size" of random configurations X-BeenThere: buildroot@buildroot.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion and development of buildroot List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Romain Naour , "Yann E. MORIN" , Buildroot List Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: buildroot-bounces@buildroot.org Sender: "buildroot" On Sun, 14 Nov 2021 13:48:43 +0100 Peter Korsgaard wrote: > >>>>> "Thomas" == Thomas Petazzoni writes: > > > genrandconfig is used by the Buildroot autobuilders to generate > > semi-random configurations that we build test. As part of this, we use > > "make randpackageconfig" to randomize the selection of packages, > > together with a KCONFIG_PROBABILITY value, which indicates the > > probabibility for each option to be enabled. This probability is > > itself randomized, between 1% and 30% for every build. > > > However, with our increasing number of packages (over 2900), when we > > use a 30% probability for options to be enabled, it means a *lot* of > > options are enabled, causing very large configurations to be > > tested. These configurations are not very realistic, and they take > > ages to build on our autobuilders: we have builds that take 4, 5 or > > even 7 hours to build. > > > In order to test a larger number of configurations and therefore a > > larger variety of configurations, this commit reduces the maximum > > probability to 20%. > > > Signed-off-by: Thomas Petazzoni > > Makes sense. Committed, thanks. Thanks! I think we want it in all branches currently tested by the autobuilders, i.e master, next, 2021.02.x and 2021.08.x. Thomas -- Thomas Petazzoni, co-owner and CEO, Bootlin Embedded Linux and Kernel engineering and training https://bootlin.com _______________________________________________ buildroot mailing list buildroot@buildroot.org https://lists.buildroot.org/mailman/listinfo/buildroot