Date: Mon, 8 Nov 2021 18:38:14 +0000 From: Brooks Davis <brooks@freebsd.org> To: Dimitry Andric <dim@FreeBSD.org> Cc: Stephen Montgomery-Smith <montgomerysmithstephen@gmail.com>, FreeBSD Ports <freebsd-ports@FreeBSD.org> Subject: Re: Running out of RAM building devel/llvm13 Message-ID: <20211108183814.GD81740@spindle.one-eyed-alien.net> In-Reply-To: <7D697030-8E5F-4B4F-B5E8-A8BE609A1CCA@FreeBSD.org> References: <23a70169-d986-02c0-6763-61db22c75c0b@FreeBSD.org> <7D697030-8E5F-4B4F-B5E8-A8BE609A1CCA@FreeBSD.org>
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--dTy3Mrz/UPE2dbVg Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Nov 07, 2021 at 12:38:20AM +0100, Dimitry Andric wrote: > On 6 Nov 2021, at 23:53, Stephen Montgomery-Smith <montgomerysmithstephen= @gmail.com> wrote: > >=20 > > Does anyone else have the problem of running out of RAM when building d= evel/llvm13? I have 6 CPUS, 4G of RAM, and 4G of swap. > >=20 > > I can solve it by building with MAKE_JOBS_UNSAFE=3Dyes, but then the bu= ild is so slow. > >=20 > > It seems that there is a small part of the build which requires a lot o= f RAM, and it would be nice to restrict just that portion of the build to j= ust one CPU. >=20 > Try turning off the FLANG option. In my release testing for llvm 13.0.0 I= found this eats up most of the memory during a build. If you turn of FLANG, I also recommend disabling MLIR. It's nominally a separate thing with other uses, but I believe only flang uses it in tree. If we could isolate which file(s) use too much memory it might be possible for upstream to put in an exception to single-thread around them. BTW, which architecture are you building for? -- Brooks --dTy3Mrz/UPE2dbVg Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEcBAEBAgAGBQJhiW6WAAoJEKzQXbSebgfAGMwH+QG3tJN4NMW+RKoceIpzuCSy 3UrV+qoXCuY9EcSjUGA1NRIb1NW7XJH8yHg2JJrXK1UGltjmNUdtihZqABoJKMJV KRoRudnY/4aQkePKh0gH0MFNkh23xvng9Fa0HaVRAL1/cjhBZAgYGLjwxrTZ/bIY 43f6zzqWaVSwBQjKuHy3QlP1CswtOsCv6pAtJKP+epETrRQbsOyIvtOqp9jYMPqo kHxo4gZUY0IovnifCy/f2CVSm0ttF4Y5hxbj+N2p5RTcAJKLsw2P7YLz3T+tb7Y2 ulo2S6GTGXgbWm/Cfa+KUywTBHRaKnRrJ7XFFliXo1/SWGd4DJ8hFQj9xYizQ6Y= =tojc -----END PGP SIGNATURE----- --dTy3Mrz/UPE2dbVg--
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