Date: Sun, 26 Feb 2023 14:50:33 +0100 From: Jan Beich <jbeich@FreeBSD.org> To: Matthias Andree <matthias.andree@tu-dortmund.de> Cc: Piotr Kubaj <pkubaj@FreeBSD.org>, ports-committers@FreeBSD.org, dev-commits-ports-all@FreeBSD.org, dev-commits-ports-main@FreeBSD.org Subject: Re: git: c8c2d4f22536 - main - lang/python3: allow using LTO on powerpc64 Message-ID: <cz5w-ilhy-wny@FreeBSD.org> In-Reply-To: <98e988fa-9c8b-abee-8357-1cacd7462014@tu-dortmund.de> (Matthias Andree's message of "Sun, 26 Feb 2023 13:00:19 %2B0100") References: <202302241548.31OFmQ39049727@gitrepo.freebsd.org> <98e988fa-9c8b-abee-8357-1cacd7462014@tu-dortmund.de>
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Matthias Andree <matthias.andree@tu-dortmund.de> writes: > Am 24.02.23 um 16:48 schrieb Piotr Kubaj: > >> The branch main has been updated by pkubaj: >> URL: >> https://cgit.FreeBSD.org/ports/commit/?id=c8c2d4f2253694802ef720f098c57800570ad2fc >> commit c8c2d4f2253694802ef720f098c57800570ad2fc >> Author: Piotr Kubaj <pkubaj@FreeBSD.org> >> AuthorDate: 2023-02-24 15:48:16 +0000 >> Commit: Piotr Kubaj <pkubaj@FreeBSD.org> >> CommitDate: 2023-02-24 15:48:16 +0000 >> lang/python3: allow using LTO on powerpc64 >> It was recently fixed and will be available in >> 13.2-RELEASE. >> Since LTO is not enabled by default, it's ok to make it available. > > Careful. LTO causes EXCESSIVE memory use for the build. > I've had to disable it for a low-memory server I operate (amd64 based, > but that's the LTO feature itself, not the CPU). Are you sure 570Mb RAM is EXCESSIVE for amd64 ? For example, # LTO=on (default) $ command time -l poudriere testport -j 131amd64 lang/python311 [...] 239,69 real 337,42 user 28,81 sys 576192 maximum resident set size 31894 average shared memory size 376 average unshared data size 130 average unshared stack size 6421966 page reclaims 722 page faults 0 swaps 264 block input operations 7192 block output operations 492544 messages sent 1601891 messages received 206 signals received 557019 voluntary context switches 94688 involuntary context switches # LTO=off $ command time -l poudriere testport -j 131amd64 lang/python311 [...] 51,74 real 157,36 user 24,55 sys 227632 maximum resident set size 38459 average shared memory size 342 average unshared data size 133 average unshared stack size 5435102 page reclaims 169 page faults 0 swaps 27 block input operations 5922 block output operations 152036 messages sent 841866 messages received 207 signals received 269370 voluntary context switches 86800 involuntary context switches
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