Date: Mon, 30 May 2016 21:31:40 -0700 From: Matthew Macy <mmacy@nextbsd.org> To: "Matthias Apitz" <guru@unixarea.de> Cc: "<freebsd-current@freebsd.org>" <freebsd-current@freebsd.org> Subject: Re: r300951 make buildworld duration 18h Message-ID: <1550514d8fe.cc2d189b33647.6378517539401453661@nextbsd.org> In-Reply-To: <20160530143726.GA2418@c720-r292778-amd64.oa.oclc.org> References: <20160530143726.GA2418@c720-r292778-amd64.oa.oclc.org>
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---- On Mon, 30 May 2016 07:37:26 -0700 Matthias Apitz <guru@unixarea.de> wrote ---- > > Hello, > > Yesterday I pulled via svn co ... a fresh r300951 and started the buildworld as > > # make -j2 buildworld > > it ended today at lunchtime after 18 hours. The laptop has 2x Intel Atom 1.6GHz > and 1 GByte RAM and was otherwise unused. Is this the normal buildworld time of > today? I think it spent most of the time in building the llvm... > I never build on any of my laptops. I have a 8-thread VM running FreeBSD on a new-ish 6-core Broadwell. It builds world in 35-45 minutes and a new kernel in ~3-5 minutes. I mount it over NFS and install to the laptops when I want to update. Obviously if you only have this Atom based machine then that's not a luxury you have. If that's the case I'd install llvm/clang from ports and skip both clangs from the build. I'd guess it's probably 70+% of the buildworld time on my system and possibly > 80% on yours due to the large C++ memory usage. -M
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