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Printing hello world does not show the cost / benefit of a tracing jit that needs to be warmed up over thousands of iterations. And counter example: it takes maven 0.788s to realize I don't have a pom.xml in my PWD and fail a build. It takes meson 0.163s.

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Maven versus Meson is purely about architecture, just look at Maven's design.

There is a reason I didn't say anything about that aspect of JITs that you mention, it's because it's not relevant to commands which are launched from shell scripts and then exit.

This is not the gotcha you think it is.

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