rolldown_devtools_metrics 1.3.1

In-memory aggregation of Rolldown devtools events into an agent-readable metrics report
Documentation 
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---
source: crates/rolldown_devtools_metrics/src/tests.rs
expression: "render::render_graph(&report)"
---
# Entry Points & Chunk Graph

3 entry points, 4 non-empty chunks.

### Entry: `src/a.ts`

- **Output chunk**: `dist/a.js` (1000 B)
- **Initial load**: 3.9 kB (this chunk + its transitive static-import chunks)
- **Static imports**: `dist/shared.js`

### Entry: `src/b.ts`

- **Output chunk**: `dist/b.js` (800 B)
- **Initial load**: 3.7 kB (this chunk + its transitive static-import chunks)
- **Static imports**: `dist/shared.js`
- **Dynamic imports**: `dist/lazy.js`

### Entry: `src/lazy.ts`

- **Output chunk**: `dist/lazy.js` (500 B)
- **Initial load**: 500 B (this chunk + its transitive static-import chunks)
- **Static imports**: none

## Retained size (dominator tree)

5 modules / 2.1 kB statically reachable from 2 entry points; 1 module already lazy (dynamic-import only).

Deferring the import edge that pulls a module in removes its whole retained subtree from the initial load. `via` names the immediate dominator - the single import chain to cut. Full graph + `what-if` queries: `module-graph.json`.

| Module | Own | Retained | Modules | via |
| --- | --- | --- | --- | --- |
| `foo/index.js` | 1.2 kB | **1.2 kB** | 1 | `src/a.ts` |
| `src/shared.ts` | 700 B | **700 B** | 2 | (entries) |