Re: -CURRENT compilation time

From: David Chisnall <>
Date: Tue, 7 Sep 2021 14:51:21 +0100
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.

Received on Tue Sep 07 2021 - 13:51:21 UTC

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