Justin, On 8 March 2012 at 11:06, Justin Talbot wrote: | I've been working on an R performance academic project for the last | couple years which has involved writing an interpreter for R from | scratch and a JIT for R vector operations.
Cool. I think John mention that once or twice and I promptly forgot. Can you share some numbers? | So why is R performance poor now? I think the fundamental reason is | related to software engineering: R is nearly impossible to experiment | with, so no one tries out new performance techniques on it. There are Did you compare notes with the CXXR project by Andrew Runnalls and his student(s)? See http://www.cs.kent.ac.uk/projects/cxxr/ | I see little value is debating changes to the language semantics until | we've addressed this low hanging fruit and at least tried to make the | current R/S semantics run fast. Fully agree. I'd add that helping expand R via the FFI also works, though it is of course not as easy on the end user as making the core faster. Dirk -- "Outside of a dog, a book is a man's best friend. Inside of a dog, it is too dark to read." -- Groucho Marx ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
