Release fixes

[benbernard]

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[github-actions]

Performance Benchmark Results

⚠️ 11 regressions detected out of 103 benchmarks (threshold: 25%)

Benchmark	Median	Baseline	Delta
KeySpec — simple key (name)	394.3µs	214.6µs	+83.7% 🔴
chain — 5 ops (grep	eval	grep	eval
implicit — 2 ops (grep	eval), 100 records	143.2µs	71.5µs
chain — 2 ops (grep	eval), 1K records	310.4µs	204.8µs
implicit — 3 ops (grep	eval	grep), 100 records	175.6µs
chain — 3 ops (grep	eval	grep), 1K records	303.4µs
implicit — 3 ops (grep	eval	grep), 1K records	309.0µs
chain — 3 ops (grep	eval	grep), 10K records	1.41ms
implicit — 3 ops (grep	eval	grep), 10K records	1.44ms
chain — 5 ops (grep	eval	grep	eval
chain — 5 ops (grep	eval	grep	eval

103 benchmarks: 11 faster, 14 slower, 78 within noise (10%)

ℹ️ Note: Benchmarks are advisory-only. GitHub Actions shared runners have variable performance, so results may fluctuate ±25% between runs. For reliable benchmarking, run locally with bun run bench.

Full benchmark results

JSON Parsing

Benchmark	Median	Baseline	Delta	Throughput
Record.fromJSON — 100 lines	151.9µs	152.8µs	-0.6%	658.39K rec/s
Record.fromJSON — 10K lines	14.17ms	13.15ms	+7.8%	705.61K rec/s, 209.0 MB/s
InputStream.fromString — 100 records	211.0µs	219.9µs	-4.0%	473.86K rec/s
InputStream.fromString — 10K records	18.54ms	17.93ms	+3.4%	539.40K rec/s, 159.7 MB/s
JSON.parse baseline — 10K lines (no Record)	12.74ms	12.95ms	-1.6%	784.68K rec/s, 232.4 MB/s
JSON.parse single array — 10K records	12.70ms	13.32ms	-4.7%	787.71K rec/s, 233.3 MB/s

JSON Serialization

Benchmark	Median	Baseline	Delta	Throughput
Record.toString — 100 records	82.6µs	86.2µs	-4.1%	1.21M rec/s
Record.toString — 10K records	8.36ms	8.17ms	+2.4%	1.20M rec/s, 354.1 MB/s
Record.toJSON — 10K records	288.3µs	282.4µs	+2.1%	34.68M rec/s
JSON.stringify baseline — 10K objects (no Record)	7.85ms	7.89ms	-0.5%	1.27M rec/s, 377.3 MB/s
Batch join — 10K records (map+join)	8.42ms	9.13ms	-7.8%	1.19M rec/s, 351.6 MB/s

KeySpec Access

Benchmark	Median	Baseline	Delta	Throughput
KeySpec — simple key (name)	394.3µs	214.6µs	+83.7% 🔴	25.36M rec/s
KeySpec — nested key (address/zip)	544.3µs	521.2µs	+4.4%	18.37M rec/s
KeySpec — deep nested (address/coords/lat)	604.7µs	567.9µs	+6.5%	16.54M rec/s
KeySpec — array index (tags/#0)	421.1µs	562.7µs	-25.2% 🟢	23.75M rec/s
Direct property access baseline (rec['name'])	37.5µs	39.8µs	-5.6%	266.38M rec/s
Direct nested access baseline (rec.address.coords.lat)	58.3µs	63.7µs	-8.5%	171.46M rec/s
KeySpec construction — cached (same spec 10K times)	278.6µs	281.3µs	-1.0%	35.90M rec/s
KeySpec construction — unique specs (10K different)	2.24ms	2.15ms	+4.0%	4.47M rec/s
Compiled KeySpec.resolveValue — nested (address/zip)	165.2µs	305.0µs	-45.8% 🟢	60.54M rec/s
Compiled KeySpec.resolveValue — deep (address/coords/lat)	123.8µs	232.1µs	-46.7% 🟢	80.78M rec/s
Compiled KeySpec.resolveValue — array (tags/#0)	155.8µs	240.4µs	-35.2% 🟢	64.17M rec/s
Compiled KeySpec.setValue — nested (address/zip)	203.4µs	162.9µs	+24.9% 🔴	49.16M rec/s

Core Operations

Benchmark	Median	Baseline	Delta	Throughput
grep — 10K records (r.age > 50)	432.9µs	445.9µs	-2.9%	23.10M rec/s
grep — 10K records (string match)	440.2µs	463.7µs	-5.1%	22.72M rec/s
eval — 10K records (add computed field)	2.41ms	2.31ms	+4.1%	4.16M rec/s
xform — 10K records (push each record)	2.79ms	2.88ms	-3.0%	3.58M rec/s
sort — 100 records (by score, numeric)	162.6µs	172.5µs	-5.8%	614.91K rec/s
sort — 10K records (by score, numeric)	17.57ms	18.52ms	-5.2%	569.25K rec/s
sort — 10K records (by name, lexical)	11.92ms	12.20ms	-2.3%	839.06K rec/s
collate — 100 records (count by city)	283.0µs	290.7µs	-2.7%	353.40K rec/s
collate — 10K records (count by city)	11.61ms	12.23ms	-5.1%	861.09K rec/s
fromcsv — 10K rows (parse CSV to records)	15.49ms	14.71ms	+5.3%	645.46K rec/s, 42.4 MB/s

Pipeline Overhead

Benchmark	Median	Baseline	Delta	Throughput
chain — single op (grep), 10K records	7.07ms	6.98ms	+1.2%	1.41M rec/s
chain — 3 ops (grep	eval	grep), 10K records	7.38ms	7.74ms
chain — 5 ops (grep	eval	grep	eval	grep), 10K records
passthrough baseline — 10K records (direct collector)	6.01ms	6.00ms	+0.2%	1.66M rec/s

Record Creation & Serialization

Benchmark	Median	Baseline	Delta	Throughput
new Record() — 10K objects	97.1µs	93.1µs	+4.3%	103.02M rec/s
new Record() empty — 10K	134.1µs	129.1µs	+3.8%	74.57M rec/s
Record.get — 10K records × 3 fields	53.6µs	47.6µs	+12.5% 🔴	559.91M rec/s
Record.set — 10K records × 1 field	59.9µs	61.1µs	-2.1%	167.08M rec/s
Record.toJSON — 10K records	310.5µs	282.4µs	+10.0%	32.21M rec/s
Record.toString — 10K records	8.43ms	8.17ms	+3.1%	1.19M rec/s
Record.clone — 10K records	56.88ms	54.48ms	+4.4%	175.81K rec/s
Record.fromJSON — 10K lines	13.08ms	13.15ms	-0.5%	764.29K rec/s, 226.3 MB/s
Record.dataRef — 10K records (zero-copy)	38.0µs	38.3µs	-0.7%	262.84M rec/s
Record.sort — 10K records (numeric field)	11.37ms	11.69ms	-2.7%	879.30K rec/s
Record.sort — 10K records (lexical field)	6.00ms	6.09ms	-1.4%	1.67M rec/s
Record.cmp — 1M comparisons (single field)	103.52ms	102.50ms	+1.0%	9.66M rec/s
Record.sort — 10K records (nested field numeric)	15.33ms	15.75ms	-2.7%	652.19K rec/s
Record.cmp — 1M comparisons (multi-field cached)	91.52ms	85.74ms	+6.7%	10.93M rec/s
Record.sort — 10K records (cached comparator reuse)	11.59ms	11.84ms	-2.1%	862.47K rec/s

Chain vs Pipe

Benchmark	Median	Baseline	Delta	Throughput
chain — 2 ops (grep	eval), 100 records	115.2µs	152.5µs	-24.4% 🟢
pipe — 2 ops (grep	eval), 100 records	419.53ms	381.93ms	+9.8%
implicit — 2 ops (grep	eval), 100 records	143.2µs	71.5µs	+100.2% 🔴
chain — 2 ops (grep	eval), 1K records	310.4µs	204.8µs	+51.6% 🔴
pipe — 2 ops (grep	eval), 1K records	375.12ms	367.53ms	+2.1%
implicit — 2 ops (grep	eval), 1K records	290.6µs	301.9µs	-3.8%
chain — 2 ops (grep	eval), 10K records	1.08ms	1.37ms	-21.1% 🟢
pipe — 2 ops (grep	eval), 10K records	365.62ms	360.86ms	+1.3%
implicit — 2 ops (grep	eval), 10K records	1.07ms	1.09ms	-2.0%
chain — 3 ops (grep	eval	grep), 100 records	98.3µs	156.0µs
pipe — 3 ops (grep	eval	grep), 100 records	533.68ms	552.79ms
implicit — 3 ops (grep	eval	grep), 100 records	175.6µs	113.2µs
chain — 3 ops (grep	eval	grep), 1K records	303.4µs	206.9µs
pipe — 3 ops (grep	eval	grep), 1K records	556.68ms	567.45ms
implicit — 3 ops (grep	eval	grep), 1K records	309.0µs	204.0µs
chain — 3 ops (grep	eval	grep), 10K records	1.41ms	1.07ms
pipe — 3 ops (grep	eval	grep), 10K records	570.39ms	551.81ms
implicit — 3 ops (grep	eval	grep), 10K records	1.44ms	1.09ms
chain — 5 ops (grep	eval	grep	eval	grep), 100 records
pipe — 5 ops (grep	eval	grep	eval	grep), 100 records
implicit — 5 ops (grep	eval	grep	eval	grep), 100 records
chain — 5 ops (grep	eval	grep	eval	grep), 1K records
pipe — 5 ops (grep	eval	grep	eval	grep), 1K records
implicit — 5 ops (grep	eval	grep	eval	grep), 1K records
chain — 5 ops (grep	eval	grep	eval	grep), 10K records
pipe — 5 ops (grep	eval	grep	eval	grep), 10K records
implicit — 5 ops (grep	eval	grep	eval	grep), 10K records

Line Reading

Benchmark	Median	Baseline	Delta	Throughput
InputStream.fromFile — 100 lines	490.4µs	495.3µs	-1.0%	203.91K rec/s, 60.2 MB/s
InputStream.fromString — 100 lines	191.5µs	186.7µs	+2.6%	522.15K rec/s, 154.2 MB/s
manual buffer (isolated) — 100 lines	314.5µs	261.2µs	+20.4% 🔴	317.96K rec/s, 93.9 MB/s
bulk text + split — 100 lines	69.8µs	81.4µs	-14.3% 🟢	1.43M rec/s, 423.3 MB/s
node readline — 100 lines	428.2µs	442.9µs	-3.3%	233.53K rec/s, 69.0 MB/s
TextDecoderStream — 100 lines	255.2µs	243.3µs	+4.9%	391.87K rec/s, 115.7 MB/s
binary newline scan — 100 lines	285.8µs	271.5µs	+5.3%	349.88K rec/s, 103.3 MB/s
bun native stdin — 100 lines	25.79ms	26.17ms	-1.5%	3.88K rec/s, 1.1 MB/s
InputStream.fromFile — 10K lines	24.24ms	23.88ms	+1.5%	412.47K rec/s, 122.2 MB/s
InputStream.fromString — 10K lines	17.80ms	17.53ms	+1.6%	561.66K rec/s, 166.3 MB/s
manual buffer (isolated) — 10K lines	6.21ms	6.72ms	-7.6%	1.61M rec/s, 476.9 MB/s
bulk text + split — 10K lines	2.38ms	2.43ms	-1.9%	4.19M rec/s, 1242.0 MB/s
node readline — 10K lines	9.34ms	9.29ms	+0.5%	1.07M rec/s, 317.0 MB/s
TextDecoderStream — 10K lines	4.11ms	4.82ms	-14.7% 🟢	2.43M rec/s, 719.9 MB/s
binary newline scan — 10K lines	7.48ms	10.33ms	-27.6% 🟢	1.34M rec/s, 395.9 MB/s
bun native stdin — 10K lines	42.11ms	44.03ms	-4.4%	237.48K rec/s, 70.3 MB/s
InputStream.fromFile — 100K lines	261.62ms	259.87ms	+0.7%	382.23K rec/s, 113.6 MB/s
InputStream.fromString — 100K lines	216.34ms	214.28ms	+1.0%	462.24K rec/s, 137.4 MB/s
manual buffer (isolated) — 100K lines	33.61ms	36.92ms	-8.9%	2.97M rec/s, 884.0 MB/s
bulk text + split — 100K lines	29.18ms	26.97ms	+8.2%	3.43M rec/s, 1018.4 MB/s
node readline — 100K lines	84.26ms	83.36ms	+1.1%	1.19M rec/s, 352.6 MB/s
TextDecoderStream — 100K lines	42.24ms	39.47ms	+7.0%	2.37M rec/s, 703.5 MB/s
binary newline scan — 100K lines	67.35ms	83.52ms	-19.4% 🟢	1.48M rec/s, 441.2 MB/s
bun native stdin — 100K lines	124.95ms	114.59ms	+9.0%	800.29K rec/s, 237.8 MB/s