[the_duke]

And on having a fast CPU, RAM and disk.

It makes a huge difference.

For what it's worth, I'm working on a project with about 1000 dependencies and incremental debug build time is about 4 seconds on my laptop.

That's already pretty good.

[epage]

I know you said 4s is good but have you tried changing the linker?

Number of dependencies likely won't affect incremental build times except for linking and replacing it might offer some good gains for incremental builds.

[the_duke]

Oh that time is already with mold.

Default linker is quite a bit slower.