Date: Tue, 7 Sep 2021 14:51:21 +0100 From: David Chisnall <theraven@FreeBSD.org> To: Wolfram Schneider <wosch@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: -CURRENT compilation time Message-ID: <a16ae438-cef8-d21f-cf5c-891a2a328a26@FreeBSD.org> In-Reply-To: <CAMWY7CCUXJmUT8g1irOUNAxgihhoqpcTcV1nF7MR1NHCVY-%2BEQ@mail.gmail.com> References: <CAGSa5y0FMwt8g4%2BmqFegvrgBzxJCwupB_RJqb52ZUQy9EFB__Q@mail.gmail.com> <b0dadbd1-3f99-ef8e-0a35-f35d3dab828c@FreeBSD.org> <CAMWY7CCUXJmUT8g1irOUNAxgihhoqpcTcV1nF7MR1NHCVY-%2BEQ@mail.gmail.com>
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On 06/09/2021 20:34, Wolfram Schneider wrote: > With the option WITHOUT_TOOLCHAIN=yes the world build time is 2.5 > times faster (real or user+sys), down from 48 min to 19.5 min real > time. Note that building LLVM with the upstream CMake + Ninja build system is *significantly* faster on a decent multicore machine than the FreeBSD bmake-based in-tree version. One of the things I'd love to prototype if I had time is a CMake-based build system for FreeBSD so that we could get all of the tooling integration from the compile_commands.json, reuse LLVM's (and any other contrib things that use CMake) build system without having to recreate it, and be able to use ninja, to build. Davidhome | help
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