From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Korsgaard Date: Thu, 22 Mar 2018 23:39:20 +0100 Subject: [Buildroot] [PATCH 2/2] core/instrumentation: shave minutes off the build time In-Reply-To: <20180322175035.2410072a@windsurf> (Thomas Petazzoni's message of "Thu, 22 Mar 2018 17:50:35 +0100") References: <6a793a6dba4f052ca8bbc35edd63df601f46478b.1521146096.git.yann.morin.1998@free.fr> <87muz5fp2n.fsf@dell.be.48ers.dk> <20180318161530.GA2478@scaer> <87efkhfimu.fsf@dell.be.48ers.dk> <20180322164144.GY14461@australia> <20180322175035.2410072a@windsurf> Message-ID: <87sh8r68h3.fsf@dell.be.48ers.dk> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net >>>>> "Thomas" == Thomas Petazzoni writes: Hi, > These are all valid concerns, but what do you suggest ? > The current approach of hashing all files clearly doesn't scale, as a > significant amount of build time is now spent on hashing files. Indeed. If the choice is between huge overhead vs potentially minor inaccuracies in these list, then I think the choice is made fast, even though the inaccuracies aren't nice - Especially if we have a plan for fixing the the inaccuracies going forward (E.G. toplevel parallel builds). -- Bye, Peter Korsgaard