Date: Mon, 27 Mar 2017 11:41:40 +0200 From: Dimitry Andric <dim@FreeBSD.org> To: Mark Millard <markmi@dsl-only.net> Cc: FreeBSD Ports <freebsd-ports@freebsd.org>, FreeBSD PowerPC ML <freebsd-ppc@freebsd.org>, FreeBSD Toolchain <freebsd-toolchain@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: FYI: what it takes for RAM+swap to build devel/llvm40 with 4 processors or cores and WITH__DEBUG= (powerpc64 example) Message-ID: <7F94CE59-D2CC-4D6F-B1CD-FF3D1F8EDCE7@FreeBSD.org> In-Reply-To: <39C60316-F905-490D-B0AB-BC24D7F351A2@dsl-only.net> References: <3EDEF0B7-59C5-4648-9737-6682E18645BC@dsl-only.net> <39C60316-F905-490D-B0AB-BC24D7F351A2@dsl-only.net>
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--Apple-Mail=_42849A06-C7A8-45F6-85FA-EA3552BA4953 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii On 26 Mar 2017, at 23:36, Mark Millard <markmi@dsl-only.net> wrote: > > I upgraded from llvm40 r4 to final. An interesting result was > its creation of a backup package for llvm40-4.0.0.r4: > > about 13 cpu-core-hours running pkg create > > (Remember: I've been building with WITH_DEBUG= ) Its > single-threaded status stands out via elapsed time > approximately matching. > > I'll note that it was somewhat under 6 elapsed hours for > staging to have been populated (-j4 with 4 cores present > helps for this part). > > (Of course these elapsed-time figures are rather system > dependent, although the ratio might be more stable.) > > > > Also interesting was: > > Installed packages to be REMOVED: > llvm40-4.0.0.r4 > > Number of packages to be removed: 1 > > The operation will free 49 GiB. Yes, this is big. But there is no real need to build the llvm ports with debug information, unless you want to hack on llvm itself. And in that case, you are better served by a Subversion checkout or Git clone from upstream instead. -Dimitry --Apple-Mail=_42849A06-C7A8-45F6-85FA-EA3552BA4953 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.30 iEYEARECAAYFAljY3l4ACgkQsF6jCi4glqNxXQCeMmQxz2blw4Ebe9kfnfD2Lgst zswAn1d2KmHqe49pG50RRjWtVnrquJMM =phiU -----END PGP SIGNATURE----- --Apple-Mail=_42849A06-C7A8-45F6-85FA-EA3552BA4953--
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