3 ms·

Sounds like they borrowed the tracing idea from mozilla.

• scott_s 16y ago
  Not really. It's a well-known VM optimization technique.
  • cpr 16y ago
    First featured in Self many years ago, done by the same folks (Lars Bak and crew) who brought you V8. Then Sun bought their Smalltalk/Self-based company, and they built HotSpot for the JVM. Then Google hired them to do the same for Javascript, and now we have V8. It generally takes about 10-20 years to get truly new ideas from the labs to consumer-level products.
    • effn 16y ago
      Neither Self nor HotSpot uses tracing. It's a relatively new compilation technique, the implementation in the original tracing paper used java bytecode as the source language. I think you are confusing tracing with adaptive compilation.
      • kingkilr 16y ago
        Actually there's even older work using tracing for re-optimization of assembley :)
• grayrest 16y ago
  They don't mention that they're tracing. I think they're just optimistically optimizing functions in hot loops.