RoaringBitmap / RoaringBitmap/roaring
Avoid unnecessary container allocations
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- Dominant language
- Go
- Stars
- 2.9k
- Forks
- 262
- Avg merge
- 2h 34m
- Merged PRs (30d)
- 8
Description
In many instances, especially when computing intersections, we generate empty containers that are immediately garbage collected.
There are clever tricks we could use to start scanning the input containers, advance up to the point where there might be values to be intersected, and bail out without generating an empty container if the intersection is empty.
Contributor guide
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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
Begin by locating the intersection entry points and tracing where empty result containers are allocated. Compare the current behavior with cases where intersections are empty, then verify that those cases avoid unnecessary allocations without changing results. Run the repository's existing tests and benchmarks if available to confirm correctness and allocation improvements.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- go
- Domain
- performance
- Issue type
- Refactor
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Active
- Clarity
- Mostly clear
- Newbie friendliness
- 52/100