experiment: add a direct SIMDJSON utf8 versionjarred/simdjson

benchmark                                   time (avg)             (min … max)       p75       p99      p995
------------------------------------------------------------------------------ -----------------------------
• small object
------------------------------------------------------------------------------ -----------------------------
JSON.parse                              656.38 ns/iter (621.56 ns … 788.83 ns) 665.85 ns 788.83 ns 788.83 ns
JSON.parse (SIMDJSON on-demand buffer)  743.61 ns/iter  (720.6 ns … 833.83 ns) 745.12 ns 833.83 ns 833.83 ns

summary for small object
  JSON.parse
   1.13x faster than JSON.parse (SIMDJSON on-demand buffer)

• Array(4096) of true
------------------------------------------------------------------------------ -----------------------------
JSON.parse                               45.42 µs/iter    (42.79 µs … 1.91 ms)  44.79 µs  52.71 µs  56.54 µs
JSON.parse (SIMDJSON on-demand buffer)   38.65 µs/iter    (35.33 µs … 1.44 ms)  38.58 µs  45.38 µs  50.17 µs

summary for Array(4096) of true
  JSON.parse (SIMDJSON on-demand buffer)
   1.18x faster than JSON.parse

• Array(4096) of 1234.567
------------------------------------------------------------------------------ -----------------------------
JSON.parse                              100.79 µs/iter  (96.42 µs … 962.79 µs) 100.08 µs  111.5 µs 115.38 µs
JSON.parse (SIMDJSON on-demand buffer)   62.12 µs/iter  (58.13 µs … 751.96 µs)  62.75 µs  71.21 µs  75.96 µs

summary for Array(4096) of 1234.567
  JSON.parse (SIMDJSON on-demand buffer)
   1.62x faster than JSON.parse

• Array(4096) of 'hello'
------------------------------------------------------------------------------ -----------------------------
JSON.parse                              142.44 µs/iter   (132.75 µs … 1.38 ms) 141.33 µs 159.42 µs 169.54 µs
JSON.parse (SIMDJSON on-demand buffer)  196.67 µs/iter    (130.54 µs … 1.9 ms)  203.5 µs  234.5 µs 407.46 µs

summary for Array(4096) of 'hello'
  JSON.parse
   1.38x faster than JSON.parse (SIMDJSON on-demand buffer)

• Array(4096) of 'hello'.repeat(1024)
------------------------------------------------------------------------------ -----------------------------
JSON.parse                                 9.8 ms/iter    (9.07 ms … 11.26 ms)  10.19 ms  11.26 ms  11.26 ms
JSON.parse (SIMDJSON on-demand buffer)    6.39 ms/iter         (5.9 ms … 9 ms)   6.74 ms      9 ms      9 ms

summary for Array(4096) of 'hello'.repeat(1024)
  JSON.parse (SIMDJSON on-demand buffer)
   1.53x faster than JSON.parse

• Array(4096) of {a: 123, b: 456}
------------------------------------------------------------------------------ -----------------------------
JSON.parse                              310.68 µs/iter   (297.96 µs … 1.14 ms) 308.25 µs 386.33 µs 752.25 µs
JSON.parse (SIMDJSON on-demand buffer)  413.16 µs/iter   (398.67 µs … 1.13 ms) 411.88 µs 474.38 µs 717.29 µs

summary for Array(4096) of {a: 123, b: 456}
  JSON.parse
   1.33x faster than JSON.parse (SIMDJSON on-demand buffer)

Benchmark:

```js
import { bench, group, run } from "mitata";

function load(obj) {
  const asStr = JSON.stringify(obj);
  const buffer = Buffer.from(asStr);

  bench("JSON.parse", () => {
    return JSON.parse(asStr);
  });

  bench("JSON.parse (SIMDJSON on-demand buffer)", () => {
    return buffer.json();
  });
}

group("small object", () => {
  var obj = {
    a: 1,
    b: 2,
    c: null,
    false: false,
    true: true,
    null: null,
    foo: "bar",
    arr: [1, 2, 3],
    h: {
      a: 1,
    },
    i: {
      a: 1,
    },
    j: {},
    // 100 more keys
    k: {},
  };
  load(obj);
});

group("Array(4096) of true", () => {
  var obj = Array(4096);
  obj.length = 4096;
  obj.fill(true);
  load(obj);
});

group("Array(4096) of 1234.567", () => {
  var obj = Array(4096);
  obj.length = 4096;
  obj.fill(1234.567);
  load(obj);
});

group("Array(4096) of 'hello'", () => {
  var obj = Array(4096);
  obj.length = 4096;
  obj.fill("hello");
  load(obj);
});

group("Array(4096) of 'hello'.repeat(1024)", () => {
  var obj = Array(4096);
  obj.length = 4096;
  obj.fill("hello".repeat(1024));
  load(obj);
});

group("Array(4096) of {a: 123, b: 456}", () => {
  var obj = Array(4096);
  obj.length = 4096;
  obj.fill({ a: 123, b: 456 });
  load(obj);
});

run();
```

0 files changed, 0 insertions, 0 deletions