Benchmarks

Running the benchmarks

From the parent directory, run

npm run-script benchmark

The above script supports the following arguments:

• --benchmarks=...: A semicolon-separated list of benchmark names. These names will be mapped to file names in this directory by appending .js.

Adding benchmarks

The steps below should be followed when adding new benchmarks.

0. Decide on a name for the benchmark. This name will be used in several places. This example will use the name new_benchmark.

1. Create files new_benchmark.cc and new_benchmark.js in this directory.

2. Copy an existing benchmark in binding.gyp and change the target name prefix and the source file name to new_benchmark. This should result in two new targets which look like this:

     {
       'target_name': 'new_benchmark',
       'sources': [ 'new_benchmark.cc' ],
       'includes': [ '../except.gypi' ],
     },
     {
       'target_name': 'new_benchmark_noexcept',
       'sources': [ 'new_benchmark.cc' ],
       'includes': [ '../noexcept.gypi' ],
     },
   

   There should always be a pair of targets: one bearing the name of the benchmark and configured with C++ exceptions enabled, and one bearing the same name followed by the suffix _noexcept and configured with C++ exceptions disabled. This will ensure that the benchmark can be written to cover both the case where C++ exceptions are enabled and the case where they are disabled.