Ninja vs Make: Faster Incremental Builds?
Ninja is a minimal, very fast build backend meant to be generated by tools like CMake; Make is the classic, hand-written build tool.
Ninja deliberately does little by design: it reads a generated build.ninja file and executes the dependency graph as fast as possible, with quick startup and excellent parallelism. You rarely write Ninja by hand - CMake, Meson, or gn generate it. Make is human-authored, more featureful as a language, and ubiquitous, but its incremental builds are typically slower than Ninja on large graphs.
| Ninja | Make | |
|---|---|---|
| Authoring | Generated | Hand-written |
| Speed | Very fast | Slower on big graphs |
| Language features | Minimal by design | Rich (functions, rules) |
| Common pairing | CMake / Meson | Standalone or generated |
| Best for | Fast generated builds | Hand-authored build logic |
In CI
For large C/C++ builds driven by CMake or Meson, generating Ninja gives faster incremental builds and better parallelism than Make. Make remains fine for smaller or hand-written builds and is preinstalled everywhere. In practice many teams write CMake/Meson and let it emit Ninja for speed.
Speed it up
Cache compiled objects with ccache/sccache and the build directory so incremental builds start warm. Both run on CI runners; faster managed runners shorten compile and link steps.
The verdict
Building large generated C/C++ projects and wanting the fastest incremental builds: Ninja (via CMake or Meson). Hand-authoring build logic or working in small projects: Make is simpler and universal. The common pattern is CMake/Meson generating Ninja.