LibJS test262 results
- Development of the engine started in March 2020 (see this YouTube video)
- Continuous running of test262 started in June 2021 (see this PR on GitHub) — results before that time are not available
- In October 2021 David reimplemented the test runner to use a streaming architecture (see this PR on GitHub), resulting in a large performance improvement (the part that looks like a cliff).
The source code of the LibJS test262 runner and aggregation script is available here, the source code of this website here, and the raw data here (JSON).
If you have any questions or want to help out with improving these test
scores, feel free to get in touch on the
SerenityOS Discord server
test262 (bytecode interpreter)
test262 parser tests