Expressive Vector Engine - SIMD in C++ Goes Brrrr
C-Rank Grade: A (Welcoming) - 59/100
External PR Merge Rate: 67%
Response Time: 3d
First Timer Success: 67%
jfalcou/eve has a recorded first-timer success rate of 66.7%. Repositories ranked A typically provide actionable feedback during code reviews and actively nurture new community contributors.
Maintainers in jfalcou/eve respond to incoming external pull requests in approximately 68.0 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.
The C-Rank™ system evaluates GitHub projects on a 0–100 scale using real data: PR merge rates, review turnaround time, active maintainer presence, and first-time contributor success. A score of 58.7 places jfalcou/eve in the A tier.
The external contributor pull request merge rate for jfalcou/eve is 66.7%, based on public PR activity from non-core contributors.
jfalcou/eve currently has 2 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".
Active maintainer team in jfalcou/eve welcoming community pull requests and bug fixes.
Average Response Latency
Tracks hours until a maintainer leaves a review, comment, or PR response.
External Acceptance Rate
Percentage of community pull requests successfully merged into main.
First PR Conversion
Rate at which developers submitting their first repository PR succeed.
Show contributors that your repository actively reviews and merges external pull requests.
[](https://getmerged.abhishekco.de/jfalcou/eve?utm_source=github&utm_medium=badge)
Historical health & responsiveness evolution
External PR acceptance
First PR success rate
50% receive response in
90% receive response in
Maintainer review activity heatmap & prime window prediction
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Detected: UTC
Maintainers are most responsive around 05:00 UTC (05:00 UTC in your timezone). Recommended submission window is Tuesday - Thursday from 11:00 to 15:00 UTC (11:00 - 15:00 UTC local).
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~44 hours (83% approval). Large PRs (>500 lines) take ~327 hours (30% approval). Keep your diff compact for rapid review.
Currently the insert and extract function, defined in detail/function/subscript.hpp both take a runtime index value as a parameter. It may be possible to provide better implementation on some architectures if the index is known at compile time (taking example on the bit shift family of functions). Proposal : Implement new overloads of insert and extract that take an index_t as their index type.
As we are trying to support a broad range of compilers we should investigate compiling on mingw.
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When evaluating whether to contribute to jfalcou/eve, response velocity and maintainer engagement are crucial. GetMerged continuously tracks pull request trajectories, first-comment latency, and code review rounds to help developers avoid submitting pull requests to backlogged repositories.
Currently, maintainers of jfalcou/eve acknowledge new external contributions in approximately 2 days+. Out of all submitted pull requests from non-core authors in the last 180-day window, 66.7% were successfully merged into the primary branch.
jfalcou/eve has a recorded first-timer success rate of 66.7%. Repositories ranked Welcoming typically provide actionable feedback during code reviews and actively nurture new community contributors.
The initial maintainer response time averages ~2 days+. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.
The C-Rank™ index scores repositories on a 0 to 100 scale using an objective formula: external PR merge rates, initial response speed, active maintainer count, and first-time contributor retention. A score of 58.7 places jfalcou/eve in the Welcoming tier.
The external pull request merge rate is 66.7%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.
Yes, jfalcou/eve currently has 2 active issue(s) tagged with beginner-friendly labels. You can inspect these directly from the repository issues tab.
All metrics displayed for jfalcou/eve are automatically retrieved via the public GitHub API and recalculated daily. Insider pull requests submitted by repository owners or organization members are excluded from merge rate calculations to preserve objective external contributor statistics.