Skip to content

STATUS.md

Latest commit

 

History

History
88 lines (68 loc) · 4.2 KB

STATUS.md

File metadata and controls

88 lines (68 loc) · 4.2 KB

Current Status

Compact current snapshot for the main browser sweep and benchmark numbers.

Use this file for "where are we right now?". Use RESEARCH.md for why the numbers changed and what was tried. Use corpora/STATUS.md for the long-form corpus canaries.

Browser Accuracy

Official browser regression sweep:

Browser Status
Chrome 7680/7680
Safari 7680/7680
Firefox 7680/7680

Notes:

  • This is the 4-font × 8-size × 8-width × 30-text browser corpus.
  • The public accuracy page is effectively a regression gate now, not the main steering metric.
  • Current machine-readable accuracy snapshots are checked in as:
    • accuracy/chrome.json
    • accuracy/safari.json
    • accuracy/firefox.json
  • These accuracy snapshot files were captured on 2026-03-27.

Benchmark Snapshot

Current benchmark snapshots are checked in as:

  • benchmarks/chrome.json
  • benchmarks/safari.json

STATUS.md stays the compact dashboard. The JSON files are the machine-readable source for the current benchmark numbers. These snapshot files were captured on 2026-03-28.

Top-level batch

Browser prepare() layout() DOM batch DOM interleaved
Chrome 18.85ms 0.09ms 4.05ms 43.50ms
Safari 18.00ms 0.12ms 87.00ms 149.00ms

Rich line APIs (shared corpus)

Browser layoutWithLines() walkLineRanges() layoutNextLine()
Chrome 0.05ms 0.03ms 0.07ms
Safari 0.05ms 0.03ms 0.07ms

Rich line APIs (Arabic long-form stress)

Browser layoutWithLines() walkLineRanges() layoutNextLine()
Chrome 4.99ms 2.17ms 6.39ms
Safari 4.66ms 2.37ms 5.53ms

Long-form corpus stress (Chrome baseline)

Corpus analyze() measure() prepare() layout() segs (analyze→prepared) lines @ 300px
Japanese prose (story 2) 1.90ms 4.00ms 6.10ms 0.02ms 1,773→2,667 193
Japanese prose 4.10ms 8.30ms 12.60ms 0.03ms 3,606→5,044 380
Korean prose 2.40ms 8.40ms 11.40ms 0.04ms 5,282→9,679 428
Chinese prose 6.10ms 13.10ms 19.20ms 0.05ms 5,433→7,949 626
Chinese prose (story 2) 3.70ms 8.10ms 11.80ms 0.03ms 3,271→4,745 375
Thai prose 8.10ms 5.40ms 13.50ms 0.05ms 10,281→10,281 1,024
Myanmar prose 0.60ms 0.70ms 1.30ms <0.01ms 797→797 81
Myanmar prose (story 2) 0.30ms 0.60ms 0.90ms <0.01ms 498→498 54
Urdu prose 2.20ms 3.30ms 5.50ms 0.03ms 6,051→6,051 351
Khmer prose 5.80ms 4.50ms 10.40ms 0.05ms 11,109→11,109 591
Hindi prose 4.30ms 6.60ms 11.10ms 0.04ms 9,958→9,958 653
Arabic prose 29.10ms 34.80ms 63.50ms 0.17ms 37,603→37,603 2,643

Notes:

  • Chrome remains the main maintained performance baseline. Safari snapshots are still useful, but they are noisier and warm up less predictably.
  • The checked-in JSON snapshots are cold checker runs. Ad hoc page-driven numbers, especially in Safari, can differ after warmup.
  • Refresh the benchmark JSON snapshots when a diff changes benchmark methodology or the text engine's hot path (src/analysis.ts, src/measurement.ts, src/line-break.ts, src/layout.ts, src/bidi.ts, or pages/benchmark.ts).
  • layout() remains the resize hot path; prepare() is where script-specific cost still lives.
  • Long-form corpus rows now split prepare() into analysis and measurement phases, which makes it easier to tell whether a script is expensive because of segmentation/glue work or because of raw width measurement volume.

Pointers

  • Current machine-readable accuracy snapshots: accuracy/chrome.json, accuracy/safari.json, accuracy/firefox.json
  • Current machine-readable benchmark snapshots: benchmarks/chrome.json, benchmarks/safari.json
  • Long-form corpus canary status: corpora/STATUS.md
  • Current representative corpus rows: corpora/representative.json
  • Full exploration log: RESEARCH.md