RStudio's Profiler Tab Made Measure-First the Default — Are Its Memory Columns Safe to Tune Against?
Since the 0.99-era IDE releases (circa 2015 — the exact build is worth confirming in Posit's release notes), RStudio has shipped a built-in Profiler built on the profvis package. Profile > Start Profiling samples the call stack of the current R session and renders an interactive flame graph in a dedicated Profiler tab, which turned "measure before you opt
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