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cmd/dist: bootstrapping is sequential #10157
The "Building compilers and go_bootstrap" step is compiling packages sequentially (there is parallelism in running the assemblers over the .s files in a package, but packages are build one at a time). This is causing bootstrapping to be slow, especially on machines with large number of cores.
On my ARM64, which is an 8-core machine, the cmd/dist step takes 5 times longer than