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docs: update build performance benchmarks (v2.4.0) #131

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10 changes: 7 additions & 3 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -406,10 +406,14 @@ Self-measured on every release via CI ([build benchmarks](generated/BUILD-BENCHM

| Metric | Latest |
|---|---|
| Build speed (native) | **2.1 ms/file** |
| Build speed (WASM) | **6.4 ms/file** |
| Build speed (native) | **4.7 ms/file** |
| Build speed (WASM) | **9.4 ms/file** |
| Query time | **2ms** |
| ~50,000 files (est.) | **~105.0s build** |
| No-op rebuild (native) | **4ms** |
| 1-file rebuild (native) | **262ms** |
| Query: fn-deps | **1.7ms** |
| Query: path | **1.1ms** |
| ~50,000 files (est.) | **~235.0s build** |

Metrics are normalized per file for cross-version comparability. Times above are for a full initial build — incremental rebuilds only re-parse changed files.

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95 changes: 52 additions & 43 deletions generated/BUILD-BENCHMARKS.md
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Expand Up @@ -5,8 +5,8 @@ Metrics are normalized per file for cross-version comparability.

| Version | Engine | Date | Files | Build (ms/file) | Query (ms) | Nodes/file | Edges/file | DB (bytes/file) |
|---------|--------|------|------:|----------------:|-----------:|-----------:|-----------:|----------------:|
| 2.4.0 | native | 2026-02-26 | 109 | 2.1 ↑11% | 1.8 ↑20% | 5.9 ~ | 9.7 ↑7% | 4434 ↑15% |
| 2.4.0 | wasm | 2026-02-26 | 109 | 6.4 ↓3% | 2.1 ~ | 5.9 ~ | 9.7 ↑7% | 4434 ↑15% |
| 2.4.0 | native | 2026-02-26 | 115 | 4.7 ↑147% | 2 ↑33% | 6.1 ↑5% | 10.2 ↑12% | 4701 ↑22% |
| 2.4.0 | wasm | 2026-02-26 | 115 | 9.4 ↑42% | 2.9 ↑38% | 6.1 ↑5% | 10.2 ↑12% | 4701 ↑22% |
| 2.3.0 | native | 2026-02-24 | 99 | 1.9 ~ | 1.5 ↑7% | 5.8 ↑7% | 9.1 ~ | 3848 ~ |
| 2.3.0 | wasm | 2026-02-24 | 99 | 6.6 ~ | 2.1 ↑11% | 5.8 ~ | 9.1 ↑3% | 3848 ~ |
| 2.1.0 | native | 2026-02-23 | 92 | 1.9 ↓24% | 1.4 ↑17% | 5.4 ↑6% | 9.1 ↓47% | 3829 ↓14% |
Expand All @@ -20,47 +20,48 @@ Metrics are normalized per file for cross-version comparability.

| Metric | Value |
|--------|-------|
| Build time | 225ms |
| Build time | 537ms |
| Query time | 2ms |
| Nodes | 644 |
| Edges | 1,062 |
| DB size | 472 KB |
| Files | 109 |

| Nodes | 696 |
| Edges | 1,173 |
| DB size | 528 KB |
| Files | 115 |

#### WASM

| Metric | Value |
|--------|-------|
| Build time | 702ms |
| Query time | 2ms |
| Nodes | 644 |
| Edges | 1,062 |
| DB size | 472 KB |
| Files | 109 |
| Build time | 1.1s |
| Query time | 3ms |
| Nodes | 696 |
| Edges | 1,173 |
| DB size | 528 KB |
| Files | 115 |

### Estimated performance at 50,000 files

Extrapolated linearly from per-file metrics above.

| Metric | Native (Rust) | WASM |
|--------|---:|---:|
| Build time | 105.0s | 320.0s |
| DB size | 211.4 MB | 211.4 MB |
| Nodes | 295,000 | 295,000 |
| Edges | 485,000 | 485,000 |
| Build time | 235.0s | 470.0s |
| DB size | 224.2 MB | 224.2 MB |
| Nodes | 305,000 | 305,000 |
| Edges | 510,000 | 510,000 |

### Incremental Rebuilds

| Version | Engine | No-op (ms) | 1-file (ms) |
|---------|--------|----------:|-----------:|
| 2.4.0 | wasm | 5 | 233 |
| 2.4.0 | native | 4 | 262 |
| 2.4.0 | wasm | 4 | 364 |

### Query Latency

| Version | Engine | fn-deps (ms) | fn-impact (ms) | path (ms) | roles (ms) |
|---------|--------|------------:|--------------:|----------:|----------:|
| 2.4.0 | wasm | 1.8 | 1.4 | 0.8 | 0.8 |
| 2.4.0 | native | 1.7 | 1.3 | 1.1 | 1 |
| 2.4.0 | wasm | 1.8 | 1.4 | 1.1 | 1 |

<!-- NOTES_START -->
### Notes
Expand All @@ -87,39 +88,47 @@ extractor is needed to recover the regression.
{
"version": "2.4.0",
"date": "2026-02-26",
"files": 109,
"files": 115,
"wasm": {
"buildTimeMs": 702,
"queryTimeMs": 2.1,
"nodes": 644,
"edges": 1062,
"dbSizeBytes": 483328,
"buildTimeMs": 1081,
"queryTimeMs": 2.9,
"nodes": 696,
"edges": 1173,
"dbSizeBytes": 540672,
"perFile": {
"buildTimeMs": 6.4,
"nodes": 5.9,
"edges": 9.7,
"dbSizeBytes": 4434
"buildTimeMs": 9.4,
"nodes": 6.1,
"edges": 10.2,
"dbSizeBytes": 4701
},
"noopRebuildMs": 5,
"oneFileRebuildMs": 233,
"noopRebuildMs": 4,
"oneFileRebuildMs": 364,
"queries": {
"fnDepsMs": 1.8,
"fnImpactMs": 1.4,
"pathMs": 0.8,
"rolesMs": 0.8
"pathMs": 1.1,
"rolesMs": 1
}
},
"native": {
"buildTimeMs": 225,
"queryTimeMs": 1.8,
"nodes": 644,
"edges": 1062,
"dbSizeBytes": 483328,
"buildTimeMs": 537,
"queryTimeMs": 2,
"nodes": 696,
"edges": 1173,
"dbSizeBytes": 540672,
"perFile": {
"buildTimeMs": 2.1,
"nodes": 5.9,
"edges": 9.7,
"dbSizeBytes": 4434
"buildTimeMs": 4.7,
"nodes": 6.1,
"edges": 10.2,
"dbSizeBytes": 4701
},
"noopRebuildMs": 4,
"oneFileRebuildMs": 262,
"queries": {
"fnDepsMs": 1.7,
"fnImpactMs": 1.3,
"pathMs": 1.1,
"rolesMs": 1
}
}
},
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