GraphQL benchmark

Simple benchmark of two GraphQL parsers written for Ruby.

These were written to study the performance of YJIT under various conditions. Racc makes many "cross boundary" calls (Ruby -> C -> Ruby), but also has a pure Ruby runtime implementation. That means we can test the how YJIT performs against a C implementation without rewriting upstream code.

Second, there is a GraphQL C extension that replaces the Ruby parser with a parser written in C. TinyGQL aims to be a fast GraphQL parser written in pure Ruby. This allows us to study whether it is worthwhile to rewrite slow code in C, or rewrite it in Ruby.

Running the Benchmark

1. Normal GraphQL benchmark (baseline):

ruby graphql-bench.rb negotiate.gql

2. GraphQL benchmark with Ruby implementation of Racc:

ruby graphql-bench.rb --ruby-racc negotiate.gql

3. GraphQL benchmark with GraphQL C extention + TinyGQL:

ruby graphql-bench.rb --cext --tinygql negotiate.gql

4. GraphQL benchmark with GraphQL C extention + TinyGQL + YJIT:

ruby --jit graphql-bench.rb --cext --tinygql negotiate.gql