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Thu, 24 Jun 2021 00:59:01 +0000 Received: by kubenode537.mail-prod1.omega.bf1.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID 85cdfcc6563d62b9b66b21641ea58be7; Thu, 24 Jun 2021 00:58:58 +0000 (UTC) Content-Type: text/plain; charset=us-ascii List-Id: Maintenance List-Archive: https://lists.freebsd.org/archives/freebsd-toolchain List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-toolchain@freebsd.org X-BeenThere: freebsd-toolchain@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.100.0.2.22\)) Subject: Re: llvm10 build failure on Rpi3 In-Reply-To: <8E78EE69-44A2-429E-AB65-941537DE25A0@yahoo.com> Date: Wed, 23 Jun 2021 17:58:56 -0700 Cc: FreeBSD ports , freebsd-arm , FreeBSD Toolchain Content-Transfer-Encoding: quoted-printable Message-Id: <43B69E69-AF38-4B50-8018-BCA02A5BBAAA@yahoo.com> References: <20210623050958.GA79888@www.zefox.net> <20210623174338.GA84853@www.zefox.net> <6F0CF2F3-A298-4CEA-AA07-B79810F3E8CF@yahoo.com> <20210623222838.GA85566@www.zefox.net> <8E78EE69-44A2-429E-AB65-941537DE25A0@yahoo.com> To: bob prohaska X-Mailer: Apple Mail (2.3654.100.0.2.22) X-Rspamd-Queue-Id: 4G9MGH40rpz4jqV X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=yahoo.com header.s=s2048 header.b=UIC5B/ty; dmarc=pass (policy=reject) header.from=yahoo.com; spf=pass (mx1.freebsd.org: domain of marklmi@yahoo.com designates 98.137.64.32 as permitted sender) smtp.mailfrom=marklmi@yahoo.com X-Spamd-Result: default: False [-3.50 / 15.00]; FREEMAIL_FROM(0.00)[yahoo.com]; MV_CASE(0.50)[]; R_SPF_ALLOW(-0.20)[+ptr:yahoo.com]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[yahoo.com:+]; DMARC_POLICY_ALLOW(-0.50)[yahoo.com,reject]; NEURAL_HAM_SHORT(-1.00)[-1.000]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[yahoo.com]; ASN(0.00)[asn:36647, ipnet:98.137.64.0/20, country:US]; MID_RHS_MATCH_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[yahoo.com:dkim]; ARC_NA(0.00)[]; RBL_DBL_DONT_QUERY_IPS(0.00)[98.137.64.32:from]; R_DKIM_ALLOW(-0.20)[yahoo.com:s=s2048]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; SPAMHAUS_ZRD(0.00)[98.137.64.32:from:127.0.2.255]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[98.137.64.32:from]; RWL_MAILSPIKE_POSSIBLE(0.00)[98.137.64.32:from]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[freebsd-toolchain] Reply-To: marklmi@yahoo.com From: Mark Millard via freebsd-ports X-Original-From: Mark Millard X-ThisMailContainsUnwantedMimeParts: N Misc notes . . . Looking at your logs, I expect trying to build both llvm10 and rust in parallel is likely to run into resource issues on teh RPi3B+. For builds in that context, it may be better to do something like: # poudriere buld -j main devel/llvm10 # poudriere buld -j main lang/rust # poudriere buld -j main -f SOMEFILE-LISTING-OTHER-ORIGINS based on using ALLOW_MAKE_JOBS=3Dyes . Part of this I based on your on-going llvm10-10.0.1_5 build shows load averages (example): 4.53 4.49 4.40 so all 4 cores are busy with a little backlogged work already. It is also part of the explanation for: bad_C++_code 24:30:53 for both building at the same time vs. bad_C++_code 06:59:12 for only llvm10 building. (I'm not making claims for overall elapsed time.) You wrote in http://www.zefox.org/~bob/readme : MAX_EXECUTION_TIME_PACKAGE=3D432000 (since increased to 1724000, builds = still stop at 24 hours)=20 I think you may have guessed wrong about what MAX_EXECUTION_TIME_PACKAGE covers: it is for after staging the build, just creating the package from the staged material. It is not for the overall time turning the port into a package. The time to build (through staging?) is controlled by something you have left commented out and have not adjusted: # This defines the max time (in seconds) that a command may run for a = build # before it is killed for taking too long. Default: 86400 #MAX_EXECUTION_TIME=3D86400 My prior notes had listed: # Cortex-A53 and such are slow for the purpose, allow 4 times the = defaults: MAX_EXECUTION_TIME=3D432000 But the figures that I'd used never dealt with something like rust on something like an RPi3B+. So the figure may well be too small even if rust is never built in parallel with anything else. (A similar point goes for all my example MAX_EXECUTION_TIME* figures.) I did do various llvm* builds, but rust is bigger than any one of those by a long shot. Parallel builds of things like llvm10 and rust in significantly overlapping time frames put the load average well over 4 and likely cause periods if significant paging/swapping. This can greatly expand the elapsed-time for the individual jobs (builders). =3D=3D=3D Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar)