Performance is a release gate here, not a marketing page. Every number below is
generated at build time from the reports named in
docs/acceptance/performance-report.json, so this page cannot quietly pick up a
newer failed or incomplete run.
MiB/s is throughput, and higher is better. p95 is the nearest-rank 95th
percentile of the retained samples, so it shows tail behavior rather than the
average. Hover or focus any table row for its budget, sample count, median, and
p95.
Matched 1,000-file CLI comparison
ESLint, official Oxlint, and OXC for TSRX lint the same byte-identical TSX files, with one no-debugger rule, through each tool’s own npm entry point, over 5 warmups and 20 measured processes. The separate mixed-file-types row is a paired internal workload rather than a cross-tool comparison, and it is the only lane that enters the native TSRX path. Report: benchmarks/comparative/results-1785296573160.json (2026-07-29), every budget passed.
Frozen release gate: throughput, same-build ordinary-path overhead, cold start, memory, and batch invariants. The npm-launcher ratio is a diagnostic boundary, not a speed claim. Report: benchmarks/native-lint/results-1785296504890.json (2026-07-29), every budget passed.
19 budgets, every budget passed. Show the numbers and the per-gate charts
Boundary
Result
Budget
Status
P01 median standard-path latency ratio
0.988
≤ 1.050
✓ pass
P01 p95 standard-path latency ratio
0.965
≤ 1.080
✓ pass
P01 diagnostic parity
1
exactly 1
✓ pass
P01 direct standard bypass
1
exactly 1
✓ pass
P02 median scan+copy+parse throughput
214.85
≥ 75
✓ pass
P02 p95 scan+copy+parse throughput
187.82
≥ 60
✓ pass
P02 equivalent-TSX throughput ratio
0.514
≥ 0.500
✓ pass
P02 warm 10 KiB p95 scan+copy+parse latency
0.050
≤ 1
✓ pass
P03 in-process one-thread lint throughput
108.58
≥ 35
✓ pass
P03 CLI one-thread lint throughput
64.029
≥ 35
✓ pass
P03 end-to-end CLI latency ratio
1.199
≤ 1.350
✓ pass
P03 diagnostic parity
1
exactly 1
✓ pass
P03 config compiled once
1
exactly 1
✓ pass
P03 config one parse per file
1
exactly 1
✓ pass
P03 configured rule applied
1
exactly 1
✓ pass
P05 fresh-process TSRX p95 latency
4.807
≤ 50
✓ pass
Direct Rust / official Oxlint npm-launcher p95 ratio
0.074
≤ 1.250
✓ pass
P05 startup-rule diagnostic parity
1
exactly 1
✓ pass
P07 TSRX peak RSS
233422848
≤ 252723200
✓ pass
Near-threshold adjudication.P02 equivalent-TSX throughput ratio landed inside the 3% band, so this family required 2 additional fresh identity-matched reports and kept the median-pressure representative of the three. Retained: benchmarks/native-lint/results-1785296491666.json, benchmarks/native-lint/results-1785296504890.json, benchmarks/native-lint/results-1785296517432.json.
Native format
Frozen release gate: formatter throughput, convergence scaling, memory, and batch invariants. The historical 16.6 MiB/s value is an absolute cross-corpus-derived floor, not a speedup claim. Report: benchmarks/native-format/results-1785296526997.json (2026-07-29), every budget passed.
25 budgets, every budget passed. Show the numbers and the per-gate charts
Boundary
Result
Budget
Status
p04 direct median ratio
0.988
≤ 1.050
✓ pass
p04 direct p95 ratio
1.008
≤ 1.080
✓ pass
p04 direct output parity
1
exactly 1
✓ pass
p04 direct bypass
1
exactly 1
✓ pass
p04 sequential median mib s
121.55
≥ 15
✓ pass
p04 sequential p95 mib s
115.16
≥ 12
✓ pass
Sequential throughput vs absolute 16.6 MiB/s floor
121.55
≥ 16.600
✓ pass
p04 default thread mib s
450.74
≥ 100
✓ pass
p04 generalized control median mib s
18.990
≥ 15
✓ pass
p04 generalized control p95 mib s
16.615
≥ 12
✓ pass
p04 generalized control linear scaling
1.016
≤ 1.350
✓ pass
p04 generalized control idempotent
1
exactly 1
✓ pass
p04 generalized control one parse
1
exactly 1
✓ pass
p04 generalized dynamic style coverage
1
exactly 1
✓ pass
p04 generalized style metadata
1
exactly 1
✓ pass
p04 generalized no hidden embedded parse
1
exactly 1
✓ pass
p04 idempotent
1
exactly 1
✓ pass
p04 one parse
1
exactly 1
✓ pass
p04 config compiled once
1
exactly 1
✓ pass
p04 config one parse per file
1
exactly 1
✓ pass
p04 config options applied
1
exactly 1
✓ pass
p05 stdin p95 ms
3.454
≤ 110
✓ pass
Direct Rust / official Oxfmt npm-launcher p95 ratio
0.039
≤ 1.250
✓ pass
p05 complete output
1
exactly 1
✓ pass
p07 rss ratio
1.143
≤ 1.150
✓ pass
Near-threshold adjudication.p07_rss_ratio landed inside the 3% band, so this family required 2 additional fresh identity-matched reports and kept the median-pressure representative of the three. Retained: benchmarks/native-format/results-1785296522210.json, benchmarks/native-format/results-1785296526997.json, benchmarks/native-format/results-1785296531837.json.
Opt-in type-aware lint
The opt-in TypeScript-Go lane. The default lane stays syntax-only with zero type processes. Report: benchmarks/type-aware/results-1785296533520.json (2026-07-29), every budget passed.
8 budgets, every budget passed. Show the numbers and the per-gate charts
Boundary
Result
Budget
Status
Default syntax lint p95
2.556 ms
≤ 10 ms
✓ pass
Single-file type-aware p95
28.046 ms
≤ 60 ms
✓ pass
Two-file project type-aware p95
29.648 ms
≤ 70 ms
✓ pass
Single-file type-aware cold start
58.416 ms
≤ 100 ms
✓ pass
Two-file project cold start
27.921 ms
≤ 120 ms
✓ pass
Type-aware vs default p95 ratio
10.972 ×
≤ 12 ×
✓ pass
Type processes per batch
1
exactly 1
✓ pass
Default path parse count per file
1
exactly 1
✓ pass
Vite/Vite+ command boundary
Fresh companion processes at the ecosystem seam. Vite build and HMR carry zero OXC for TSRX transforms. Report: benchmarks/vite/results-1785296550669.json (2026-07-29), every budget passed.
8 budgets, every budget passed. Show the numbers and the per-gate charts
Boundary
Result
Budget
Status
Mixed companion lint p95
59.343 ms
≤ 150 ms
✓ pass
Mixed lint vs canonical p95 ratio
1.698 ×
≤ 2.500 ×
✓ pass
Mixed companion format-check p95
132.80 ms
≤ 220 ms
✓ pass
Mixed format vs canonical p95 ratio
1.192 ×
≤ 2 ×
✓ pass
Ordinary npm formatter p95
119.10 ms
≤ 150 ms
✓ pass
Ordinary npm formatter vs canonical p95 ratio
1.069 ×
≤ 1.250 ×
✓ pass
Vite+ 0.2.4 mixed lint p95
254.57 ms
≤ 750 ms
✓ pass
Native TSRX parses per file
1
exactly 1
✓ pass
Native editor server
Syntax-only local language-server round trips on the retained Markless fixture. Report: benchmarks/editor/results-1785296551322.json (2026-07-29), every budget passed.
6 budgets, every budget passed. Show the numbers and the per-gate charts
Noise is handled by a fail-closed rerun policy rather than by picking a
favorable sample. A first report inside the 3% near-threshold band requires
exactly two additional fresh reports, and only the assertions that triggered get
two-of-three tolerance; everything else has to pass in all three. The
representative is chosen by median normalized budget pressure with a stable
report-path tie-break, never by taking the fastest run, and the aggregate fails
if the selected representative is red or if any failure lands more than 3%
beyond its threshold.
The harnesses are release-only, and memory-stats is linked into benchmark
executables only, never into the CLI you install. Make the authoritative release
decision with:
OXC for TSRX