Aysylu Greenberg on One VM to Rule Them All by Thomas Wuerthinger, Christian Wimmer, et al.

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One VM to Rule Them All Aysylu Greenberg @aysylu22 h9p://aysy.lu Papers We Love NYC #5 June 18th, 2014

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About Me •  Search Infrastructure at •  Spare Qme, + art + archery •  Love everything related to compilers

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Today •  Introduce concepts: – Interpreter, Compiler – Just-‐in-‐Qme (JIT) Compiler, VM •  Truﬄe + Graal •  Node specializaQon #FTW •  Truﬄe + Graal now

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•  Familiar with interpreter? Compiler? VM? •  Wrote interpreter/compiler/VM? •  Read the paper? •  Played with Truﬄe/Graal?

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Interpreter vs. Compiler h9p://www.youtube.com/watch?v=kmQUB-‐5cEgM

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Example AST

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JIT Compiler Interpreter + Compiler

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Virtual Machine Interprets bytecode for processor Targets ANY hardware Easier to opQmize bytecode

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Truﬄe + Graal •  Truﬄe: language implementaQon framework •  Graal VM: extension to HotSpot VM with exposing of its internals

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Truﬄe + Graal Interpreter for AST -‐> JIT Compiler for Free!

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Node SpecializaQon

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Node SpecializaQon

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Languages in Truﬄe + Graal •  Javascript •  Ruby •  Python •  R •  J

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All the Useful Links in One Place •  Graal on OpenJDK h9p://openjdk.java.net/projects/graal/ •  TruffleRuby h9p://blog.jruby.org/2014/01/ truffle_graal_high_performance_backend/ •  FastR h9ps://bitbucket.org/allr/fastr •  ZipPy h9ps://bitbucket.org/ssllab/zippy •  TruffleSOM h9ps://github.com/smarr/TruffleSOM

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Truﬄe + Graal Now •  System Modularity: h9p://www.slideshare.net/ ThomasWuerthinger/2014-‐0424-‐graal-‐ modularity •  All things Truﬄe + Graal: h9p://graalvm.org •  Smalltalk (SOM) fastest implementaQon: h9p://som-‐st.github.io/#performance •  Progress on R, Python, Ruby, and Smalltalk

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Truﬄe + Graal Now •  New Truﬄe features: – on-‐stack-‐replacement for loops – tail calls •  GraalVM binaries: h9p://lafo.ssw.uni-‐linz.ac.at/builds – Also, execute Java binaries (faster for some workloads)

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And now for Clojurians …

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From Authors: “We are very interested to build up a Clojure implementa5on on top of Truffle. We believe we would be able to support tail calls. We would be happy to support kick-‐ start any kind of open source effort on Truffle/Clojure.”