Mustache.java benchmarks

[Sam]

Did some benchmarking of MustacheBuilder and MustacheCompiler using
BenchmarkTest in the distribution. Also, there is a new JDK 7 branch
that uses MethodHandles rather than Reflection to call your backing
code. Here are the results:

MustacheBuilder Average
Reflection JDK 6 37,088 37,646 37,427 37,387
Reflection JDK 7 41,345 41,956 41,495 41,599
Method Handles 50,154 52,462 52,379 51,665

MustacheCompiler Average
Reflection JDK 6 35,238 35,086 34,824 35,049
Reflection JDK 7 40,078 40,081 40,032 40,064
Method Handles 41,362 46,629 44,222 44,071

What we see here is that Builder > Compiler, Handles > Reflection and
JDK 7 > JDK 6. Also, the compile time for Builder is around 10ms and
the compile time for Compiler is around 800ms. These tests were all
run on a 6-core MacPro using the latest JDK 6 from Apple and the
latest JDK 7 compiled from OpenJDK. With this result for JDK 7 I will
likely figure out a way to merge that change into the mainline and
still allow it to work with JDK 6.

Sam

[Sam]

This functionality is now integrated into the mainline. It detects
whether method handles are available at runtime and uses them if they
are available.

Sam