From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp2 ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms0.migadu.com with LMTPS id mG/EC2GfnmG0VgAAgWs5BA (envelope-from ) for ; Wed, 24 Nov 2021 21:24:01 +0100 Received: from aspmx1.migadu.com ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp2 with LMTPS id SF2AB2GfnmF8OAAAB5/wlQ (envelope-from ) for ; Wed, 24 Nov 2021 20:24:01 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 9306128EB3 for ; Wed, 24 Nov 2021 21:24:00 +0100 (CET) Received: from localhost ([::1]:52654 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mpyoB-0004cC-H1 for larch@yhetil.org; Wed, 24 Nov 2021 15:23:59 -0500 Received: from eggs.gnu.org ([209.51.188.92]:51830) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mpynb-0004c4-Fl for guix-devel@gnu.org; Wed, 24 Nov 2021 15:23:23 -0500 Received: from cascadia.aikidev.net ([173.255.214.101]:45008) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mpynZ-0006jb-Et for guix-devel@gnu.org; Wed, 24 Nov 2021 15:23:23 -0500 Received: from localhost (unknown [IPv6:2600:3c01:e000:21:21:21:0:100e]) (Authenticated sender: vagrant@cascadia.debian.net) by cascadia.aikidev.net (Postfix) with ESMTPSA id A31A31A982; Wed, 24 Nov 2021 12:23:19 -0800 (PST) From: Vagrant Cascadian To: zimoun , Julien Lepiller , Jacob Hrbek , Liliana Marie Prikler Subject: Re: Proposal: Build timers In-Reply-To: <86v90hu6wc.fsf@gmail.com> References: <86v90hu6wc.fsf@gmail.com> Date: Wed, 24 Nov 2021 12:23:08 -0800 Message-ID: <875ysh5mmr.fsf@ponder> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" Received-SPF: none client-ip=173.255.214.101; envelope-from=vagrant@debian.org; helo=cascadia.aikidev.net X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "guix-devel@gnu.org" Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Migadu-Flow: FLOW_IN X-Migadu-Country: US ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1637785440; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:in-reply-to:in-reply-to: references:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post; bh=6/S3WO47VFBInseO8FFatY9b5dluVp7YdOQgU5koTfE=; b=Iw9N9TCbgWqJ46WqhTcy0SYSMLK0twHOPjR/2gFAfLGLLAmQT7sVKurVN+7k+p1lPvQT1Q USrfnET8gJlLrIqgyAKSeU/1loO8KYiCQ4d3nX4seCzETR3E4n4H/ExZsyuCRI7atQuydK DnKGy/VnlI3vx8kykQiYJ+cN4t5zRLZOwcAH2eaJtunUDaUTSG15gvS7d/2OGNJjPg+d/6 X7UYk3E7bPiqC06emvLSLwZ9qMWgu6Mz0b7SRschTdnihZscaPh/iWaURY4uGiluiruO9G 04/FdT8Wj+7mTlXxpiNZ2nPcncN92PnIUW1QynBRTuUl34o/K74KTZ0ftoYvFw== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1637785441; a=rsa-sha256; cv=none; b=FzrE99g777p4MS5Bnj5gdwxHPS1N+kZ7ZH3/MaGLzRxaW3E7zl5tmhHbRgSumGjufGN8gB rxJogaF5GhfZH2xuuoPGwLmOp2EpTY92a2zUnGUb9lXxEKvcdk511W5GOGJ44Y9s/Clexc sDO8yLqhKkiYUwPKLojyeMd3v4P3hrNJCEIhxoGgOmEE7m73q7O8t6T3qyaAToo45iskO/ HpbRjIDh9llg7wi6ZM9ANk06FLn2TP/t1e2LAXGFS+LZMM3ioGkfEUnjqEL0eegZEqW7I8 vaF/OeWoH/7/vLqSkP9LJ6sKbz2l/dlH2T4eXUYsRa3GtjJ6lkRJAzB8L9ClWg== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -2.99 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: 9306128EB3 X-Spam-Score: -2.99 X-Migadu-Scanner: scn0.migadu.com X-TUID: hwAPFNTMKFzt --=-=-= Content-Type: text/plain On 2021-11-24, zimoun wrote: > On Tue, 23 Nov 2021 at 18:50, Julien Lepiller wrote: >> Do we even care that much about accuracy? I don't really care that the >> build takes 30 or 31 seconds, or even 1 minute, but I certainly care >> whether it takes 30s or 3h. I think this is also what SBUs give you: a >> rough estimate of which build is longer than the other. I think a >> simple proportionality relation would work well enough in most common >> cases. It might be quite off on a super computer, but who cares, >> really? > > What if it takes 3h and the prediction says 2h? Those sound about "the same" for any kind of reasonable expectation... I would guess you only want the correct order of magnitude... hours, minutes, days, weeks, months, years... or maybe quick, fast, slow, painful. I do this soft of fuzzy estimation all the time when working on Reproducible Builds in Debian; look at the past test history to get a *rough* estimate of how long I might expect a build to take. This helps me decide if I should start a build and get a $COFFEE, do some $SWORDFIGHTING on the $OFFICECHAIRS, or sit and watch the progress bar so I don't loose the mental state working on the problem becuase it will be done $SOON. Make it clear it's an estimate, or maybe even abstract away the time units so that there is no expectation of any particular time. I know there are people who would love to get a a value that was consistently right but to be *useful* it only needs an estimate to be mostly not completely wrong. At least to me. :) live well, vagrant --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEARYKAB0WIQRlgHNhO/zFx+LkXUXcUY/If5cWqgUCYZ6fMgAKCRDcUY/If5cW qsvbAP9lbCg7od/3ObncMlUx2sP8KrjP7ucq61l2PAysx0Mn3wD9EpJ4qU/gt/Rf Km858NNuqfGN6F6yUoF8DDmtYHZTIw0= =mk8L -----END PGP SIGNATURE----- --=-=-=--