NVIDIA/cudf
What happens to a stranger's pull request here, in the Porchlamp snapshot of 14 October 2026.
Outside pull requests to cudf got a first human reply in a median of 22.2 hours (109 pull requests, 11 April to 8 October 2026); 35% got none within 14 days. It ranks 435 of 3,833 overall and 236 of 1,968 for first-time contributors.
Rating
- Score: 63.54
- Coverage: 81% · Ceiling A
- Tier: B
- Quadrant: Sweet Spot
- Ecosystem: systems (C, C++ and Zig)
Five pillars
| Pillar | Score | Coverage |
|---|---|---|
| Responsiveness | 60.6 | 55% |
| Criticality | 55.4 | 100% |
| Governance | 68.0 | 100% |
| Rigor | 53.6 | 100% |
| Accessibility | 86.0 | 50% |
Rank in each lens
| Lens | Standing |
|---|---|
| Balanced | Rank 435 of 3,833 |
| First-timer | Rank 236 of 1,968 |
| Career capital | Not ranked: This repository's production-criticality signal is not yet high enough for career-capital ranking. |
| Senior systems | Rank 357 of 1,206 |
| AI-assisted | Rank 686 of 3,929 |
The measured parameters
| Parameter | Value | Count | Window | What it measures |
|---|---|---|---|---|
| Time to First Response | 22.2039 | 109 | 11 April to 8 October 2026 | Median hours from an outside pull request opening to its first substantive human reply. |
| Decision Rate (90d) | Not shown: Insufficient sample size | — | — | Share of outside pull requests that were merged or closed within 90 days. |
| First-timer Merge Rate | Not shown: Insufficient sample size | — | — | Share of first-time outside authors' decided pull requests that were merged. |
| PR Ghost Rate (14d) | 0.3489 | 278 | 16 April to 13 October 2026 | Share of outside pull requests with no maintainer response, merge or close within 14 days. |
| Time to Merge (p90) | 260.7092 | 256 | 11 April to 8 October 2026 | Hours within which 90% of merged outside pull requests were merged. |
| Dependents | Not shown: Not applicable | — | — | Packages in the registry that depend on this project, counted once each. |
| OpenSSF Criticality | 0.5538 | — | — | OpenSSF criticality score from 0 to 1, computed from the project's public activity signals. |
| Monthly Downloads | Not shown: Not applicable | — | — | Downloads from the package registry in a month. |
| Legal IP Regime | NONE | — | — | The contributor licence regime: DCO, none, a foundation CLA or a corporate CLA. |
| Elephant Factor | 3 | 999 | — | The fewest organisations that account for half of the last year's commits. |
| Promotion Ladder | AD_HOC | — | — | How openly a contributor can become a maintainer, from closed to verified. |
| Pipeline Defenses | 67.0616 | 287 | — | How well the project's build and review pipeline defends against bad changes, 0 to 100. |
| AI Policy Posture | AD_HOC | — | — | Whether the project has a written policy on AI-assisted contributions. |
| Substantive Review Rate | 0.3941 | 307 | 11 April to 8 October 2026 | Share of decided pull requests that received a substantive review. |
| Newcomer Issue Supply | 8 | — | — | Open, unassigned, up-to-date issues marked for newcomers. |
| Newcomer Conversion | Not shown: Insufficient sample size | — | — | Share of first-time authors whose first pull request merged within 180 days. |
| Newcomer Return Rate | Not shown: Insufficient sample size | — | — | Share of those merged first-time authors who sent a second pull request within 90 days. |
| Developer Experience | 100 | 30 | — | Developer experience, 0 to 100: half CI run time, half setup signals. |
Similar projects
The ranked projects nearest this one in the same ecosystem.
- luanti-org/luanti (rank 421)
- osquery/osquery (rank 423)
- zenc-lang/zenc (rank 428)
- radareorg/radare2 (rank 430)
- networkupstools/nut (rank 437)
Evidence
- Snapshot 2026-10-14, data as of 13 October 2026.
- Record hash:
81c15d7e07766021f368f11575e93a0ded6390e3b4e9329aaa597951f44a7306 - The full record is in data/2026-10-14/repos/55.json, under the key
NVIDIA/cudf. - How every number is measured: Porchlamp methodology.
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