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cmd/dist: bootstrapping is sequential #10157

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4ad opened this issue Mar 13, 2015 · 1 comment
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cmd/dist: bootstrapping is sequential #10157

4ad opened this issue Mar 13, 2015 · 1 comment

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@4ad
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@4ad 4ad commented Mar 13, 2015

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 go install std cmd.

@rsc
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@rsc rsc commented Apr 10, 2015

Simplicity wins here, I'm afraid.
From what you've described, go install std cmd is very fast.
That doesn't make cmd/dist too slow.

@rsc rsc changed the title cmd/dist: bootstrapping is too slow cmd/dist: bootstrapping is sequential Apr 10, 2015
@rsc rsc closed this Apr 10, 2015
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