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Tracing and a J avascript VM Increasing the Performance of Web 3.0

Tracing and a J avascript VM Increasing the Performance of Web 3.0 . Mohammad Soryani Mazandaran University of Science and Technology Soryani@ustmb.ac.ir. Outline. Introduction Tamarin -Tracing HLL to x86 Trace compilation Side exits Organizing Traces

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Tracing and a J avascript VM Increasing the Performance of Web 3.0

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  1. Tracing and a JavascriptVM Increasing the Performance of Web 3.0 Mohammad Soryani Mazandaran University of Science and Technology Soryani@ustmb.ac.ir

  2. Tracing and a javascript VM Outline • Introduction • Tamarin-Tracing • HLL to x86 • Trace compilation • Side exits • Organizing Traces • Type specialization via traces • Results of evaluation

  3. Tracing and a javascript VM Introduction • Client side programming is increasing • Browsers are the best choice • Javascript is powerful and supported in • all browsers • - Unfortunately has a low performance

  4. Tracing and a javascript VM Tamarin-Tracing • An experimental java script virtual machine • A Trace baced just in time compiler(JIT) • Cooperation of Mozilla and Adobe

  5. Tracing and a javascript VM HLL To X86

  6. Tracing and a javascript VM Trace Compilation

  7. Tracing and a javascript VM Side Exits

  8. Tracing and a javascript VM Organizing Traces

  9. Tracing and a javascript VM Type Specialization • dynamically typed languages are poor • candidates for just-in-time compilation • Javascript is dynamically typed • The type of some objects don’t change during • program execution • We try to compile javascript as a statically • typed language by assuming this for some • parts of code

  10. Tracing and a javascript VM Results of Evaluation

  11. Tracing and a javascript VM Results of Evaluation

  12. Tracing and a javascript VM Results of Evaluation

  13. Tracing and a javascript VM Results of Evaluation

  14. Tracing and a javascript VM References • [1] Mason Chang, Edwin Smith, Rick Reitmaier, Michael Bebenita, • Andreas Gal, Christian Wimmer, Brendan Eich, Michael Franz, • “Tracing for Web 3.0”, Proceedings of the 2009 ACM SIGPLAN/SIGOPS • international conference on Virtual execution environments , • Washington, DC, USA, March 11-3, 2009.

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