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57 lines
2.1 KiB
Markdown
57 lines
2.1 KiB
Markdown
# Benchmarks
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Measured on Apple M-series hardware, Node.js v25, using 1,000,000 iterations with a 1,000-call warm-up.
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## Bundle size
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| Format | Minified | Gzipped |
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| ------ | -------- | ------- |
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| ESM (`index.mjs`) | 2.7 KB | 949 B |
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| CJS (`index.cjs`) | 3.8 KB | 1.3 KB |
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The library has zero external dependencies. Both formats are shipped in the npm package.
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## Throughput
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| Operation | Ops / sec |
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| --------- | --------- |
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| `qiblaAngle` (forward azimuth) | ~180,000,000 |
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| `distanceKm` (haversine) | ~407,000,000 |
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These numbers reflect the V8 JIT at peak — real applications with diverse inputs and cold starts will see lower throughput. The point is that neither function is a bottleneck: both run in nanoseconds per call.
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## Reproducing the benchmark
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```js
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import { qiblaAngle, distanceKm, KAABA_LAT, KAABA_LNG } from '@acamarata/qibla';
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const N = 1_000_000;
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const LATS = Array.from({ length: 100 }, (_, i) => (i - 50) * 1.8);
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const LNGS = Array.from({ length: 100 }, (_, i) => (i - 50) * 3.6);
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// Warm up
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for (let i = 0; i < 1000; i++) qiblaAngle(LATS[i % 100], LNGS[i % 100]);
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// qiblaAngle
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const t0 = performance.now();
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for (let i = 0; i < N; i++) qiblaAngle(LATS[i % 100], LNGS[i % 100]);
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const t1 = performance.now();
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// distanceKm
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const t2 = performance.now();
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for (let i = 0; i < N; i++) distanceKm(LATS[i % 100], LNGS[i % 100], KAABA_LAT, KAABA_LNG);
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const t3 = performance.now();
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console.log(`qiblaAngle: ${Math.round(N / ((t1 - t0) / 1000)).toLocaleString()} ops/s`);
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console.log(`distanceKm: ${Math.round(N / ((t3 - t2) / 1000)).toLocaleString()} ops/s`);
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```
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## Notes
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- V8's JIT optimizer eliminates much of the trig overhead at peak throughput. Expect 40-60% of these values in production with cold module loads.
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- The library works identically in browsers (V8/SpiderMonkey/WebKit), Deno, and Bun. Performance will vary by runtime and optimization tier.
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- `qiblaGreatCircle` is not benchmarked here because throughput depends on the step count. At the default of 120 steps, it runs in roughly 2-5 microseconds per call.
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---
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[Home](../Home) | [API Reference](../API-Reference)
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