Digest is ~5x slower on Ruby 3.x then 2.x
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- Dominant language
- C
- Stars
- 51
- Forks
- 37
- Avg merge
- 8h 16m
- Merged PRs (30d)
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Description
Digest is ~5x slower for SHA1, SHA2, and SHA256 on Ruby 3.x compared to Ruby 2.x. See https://gist.github.com/morimori/1330095#gistcomment-3975819 for more details and the benchmark. Note that I tried benchmarking with Ruby 3.0.3 with both Digest 3.0.0 and 3.1.0, as well as Ruby 3.1.0 and still had the same performance. I suspect that it has to do with the extraction of Digest into its own gem.
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked gist and its benchmark, reproducing the SHA1, SHA2, and SHA256 comparison across Ruby 2.x and Ruby 3.x with Digest 3.0.0 and 3.1.0. Trace the Digest gem's implementation to identify the source of the regression; done means the cause is addressed and the benchmark no longer shows the reported slowdown.
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Assessment
- Tech stack
- c, ruby
- Domain
- cryptography, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100