052fb64068
Our workflows and Dockerfiles now use Ninja on Linux & Mac, which enables safe parallel builds. This significantly speeds up our workflows. GitHub Actions typical compilation times (build step only): - Linux 19m => 9m - macOS 23m => 8m - Windows 12m => 10m - Linux arm64 (self-hosted) 72m => 29m - Docker build 25m => 14m Overall workflow time: 84m => 33m Compilation time on my workstation (12 CPUs @3.3GHz): 15m => 3m This also adds a new environment variable "PACKAGER_LOW_MEMORY_BUILD". If defined when CMake is first run, this will configure the build to disable parallel linking to reduce memory usage. This helps us avoid failures on our self-hosted arm64 machines, where 6 CPUs share 4GB of RAM. NOTE: Parallel builds are **NOT** recommended with Unix Makefiles due to the use of excessive RAM during parallel linking. Unix Makefiles, unlike Ninja, cannot be configured to restrict parallel linking during a parallel build. Anecdotally, parallel builds with Makefiles have exhausted a system with 32GB RAM. (My workstation.) In a follow-up, I will update the build documentation to refer to CMake and recommend all of the flags now used in our workflows. |
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| test_dockers.sh | ||