facebookresearch

facebookresearch/faiss

Time frame
Merged PRs May 20, 2026 – Jul 24, 2026

Velocity

0 PRs49.1%

Last 12 weeks · 114 commits · +31,487 / -3,594

Median cycle time

19h

28.0d p90 · — to first approval

Code churn (30d)

3%

0% revert · 7% reedit

Substantive reviews

52%

0% changes requested · 1% rubber-stamped

Complexity-adjusted velocity

165.0

2.1 avg complexity / PR

Maintainability risk

1.3

LLM-assessed, higher means riskier

Reviewer turnaround

8 active reviewers

Work distribution
Merged PRs by commit classification.
Feature 10%Bug fix 21%Maintenance 69%

Maintenance breakdown

Tech debt23
DevOps1
Admin3
165merged PRs

Most of the work

Maintenance

Least of the work

Feature

Work-type mix over time
Merged PRs per week by classification.
Review health
Where substantive-review coverage sits, from rubber-stamp territory to rigorous.

52%

0%40%70%100%

0% of PRs got changes requested · 1% were rubber-stamped

Reviewer metrics
Non-bot reviewer load and first-activity turnaround.
ReviewerReviewsAvg turnP90 turnComments
mnorris111530
mdouze1023
alibeklfc44
alexanderguzhva11
algoriddle10
limqiying11
estebun26-ai11
aknayar11