Histogram
The empirical density, binned linearly and clipped at the 99th percentile with an overflow bucket so tail outliers don't dominate the visual.
Abstract
For every engineer and every commit merged in the selected window, we compute the Engineering-Terminal-Value (ETV). This page replaces aggregate totals with three complementary statistical views of how that quantity distributes across each population.
Reading engineers and commits side-by-side separates a people story (output tracks individual capability) from a commits story (output tracks the size of merged changes) — see Figure 5.
The empirical density, binned linearly and clipped at the 99th percentile with an overflow bucket so tail outliers don't dominate the visual.
The cumulative share of total ETV produced by the bottom of the sorted population; is perfect equality, and the further sags below the diagonal, the more concentrated the distribution.
, with , is a scalar summary (0 = uniform contribution, 1 = all mass in a single entity); reported alongside the top-20 % share and the ratio as redundant sanity checks.
How Performance is spread across active engineers in the selected window. A flat histogram means the team contributes evenly; a long right tail means a few top engineers carry most of the output. The Lorenz curve bends toward the bottom-right in proportion to that concentration.
Read each bar as: “there are this many engineers whose total ETV in the selected window falls in this bucket.” Linear x-axis, clipped at p99 with an overflow bin on the far right so a couple of outliers don't dominate the view.
Read a point (x, y) as: “the bottom x % of engineers produced y % of the total ETV.” Dashed diagonal = perfect equality (every engineer ships the same). The further the curve sags below it, the more output is concentrated in the top few.
How Performance is spread across individual commits. Most commits are small; a few large ones carry disproportionate weight. The histogram uses a log x-axis because the distribution is heavy-tailed — on a linear axis everything collapses into the first bar.
No substantive commits in the selected window.
Is Performance a people story or a commits story? The same ETV, viewed two ways — once as how it piles up across engineers, once as how it piles up across individual commits.
Not enough data to compare in the selected window.