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This changes the build script to build all the things in one go invocation, instead of one invocation per cmd. This is a lot faster because it means more things get compiled concurrently. It's especially a lot faster when things *don't* need to be rebuilt, possibly because it only needs to build the dependency map and such once instead of once per binary. In order for this to work we need to be able to pass the same ldflags to all the binaries. This means we can't set the program name with an ldflag. When it needs to rebuild everything (go clean -cache): ( ./old-build -gocmd go1.14.2 build all 2> /dev/null; ) 65.82s user 11.28s system 574% cpu 13.409 total ( ./new-build -gocmd go1.14.2 build all 2> /dev/null; ) 63.26s user 7.12s system 1220% cpu 5.766 total On a subsequent run (nothing to build, just link the binaries): ( ./old-build -gocmd go1.14.2 build all 2> /dev/null; ) 26.58s user 7.53s system 582% cpu 5.853 total ( ./new-build -gocmd go1.14.2 build all 2> /dev/null; ) 18.66s user 2.45s system 1090% cpu 1.935 total |
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.. | ||
build_test.go | ||
build.go | ||
tags_noupgrade.go | ||
tags_race.go |