I found out that the Computer Language Benchmark Game has some performance data for JavaScript on both V8 and TraceMonkey:
http://shootout.alioth.debian.org/
You can compare the performance against other language implementations for the same benchmarks, such as G++:
http://shootout.alioth.debian.org/u64/benchmark.php?test=all&lang=v8&... http://shootout.alioth.debian.org/u64/benchmark.php?test=all&lang=tracem...
Apparently this was run under a recent version of V8. It's nice to see that there's still a significant performance gap, and hence room for improvement. The pidigits benchmark is one on which both implementations do extremely poorly.
- Maxime
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On 2011-02-20, at 2:15 PM, chevalma@iro.umontreal.ca wrote:
Apparently this was run under a recent version of V8. It's nice to see that there's still a significant performance gap, and hence room for improvement. The pidigits benchmark is one on which both implementations do extremely poorly.
If I recall, pidigits computes pi using bignums which are poorly implemented in JavaScript (using a vector of base 10 digits). So those benchmarks could be improved (compared to G++ and other compilers) by using our implementation of bignums. Of course that will also improve the V8 and TraceMonkey times.
Marc
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chevalma＠iro.umontreal.ca -
Marc Feeley