blog post about taking a sabbatical to work on ruby profiling toolshttps://jvns.ca/blog/2017/12/02/taking-a-sabbatical-to-work-on-ruby-profiling-tools/ …
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I am working on a Rust thing to make Rails faster and am frustrated that I can't use the same profiling tools to measure before/after. (Instruments can't see into Ruby, stackprof can't see past FFI) Happy to expand further if this sounds like a point of interest
