perf(scripts): improve performance benchmarking accuracy (#36)

- Replaces deprecated [benchmark](https://github.com/bestiejs/benchmark.js) with [tinybench](https://github.com/tinylibs/tinybench)
- Updates `scripts/perf.js` to use tinybench
- Enforces warm-up and garbage collection (gc between runs may not be needed, but it should minimize interference)

```shell
npm run perf

> @jmespath-community/jmespath@1.1.4 perf
> node --expose-gc scripts/perf.js

┌─────────┬─────────────────────────────────┬──────────────┬────────────────────┬──────────┬──────────┐
│ (index) │ Task Name                       │ ops/sec      │ Average Time (ns)  │ Margin   │ Samples  │
├─────────┼─────────────────────────────────┼──────────────┼────────────────────┼──────────┼──────────┤
│ 0       │ 'Parser#single_expr'            │ '14,010,279' │ 71.37616207528444  │ '±0.74%' │ 14010280 │
│ 1       │ 'Parser#single_subexpr'         │ '7,064,237'  │ 141.55808538731404 │ '±0.06%' │ 7064238  │
│ 2       │ 'Parser#deeply_nested_50'       │ '340,225'    │ 2939.2295062691283 │ '±0.57%' │ 340226   │
│ 3       │ 'Parser#deeply_nested_50_index' │ '196,826'    │ 5080.625386760879  │ '±0.52%' │ 196827   │
│ 4       │ 'Parser#basic_list_projection'  │ '3,958,033'  │ 252.6507331664748  │ '±0.61%' │ 3958034  │
└─────────┴─────────────────────────────────┴──────────────┴────────────────────┴──────────┴──────────┘
```

<!-- ps-id: 5d145054-8cd2-42df-abf6-bd252e64d9ee -->

Author: cawalch

package-lock.json

@@ -41,7 +41,7 @@
     "lint:fix": "npm run lint -- --fix",
     "prebuild": "npx rimraf dist",
     "build": "npx tsc --outDir dist/lib -d --module commonjs && npx rollup -c rollup.config.ts",
-    "perf": "node scripts/perf.js",
+    "perf": "node --expose-gc scripts/perf.js",
     "start": "npx rollup -c rollup.config.ts -w",
     "test": "npx jest --coverage",
     "test:watch": "npx jest --coverage --watch",
@@ -59,7 +59,6 @@
     "@types/jest": "^29.4.0",
     "@typescript-eslint/eslint-plugin": "^4.26.0",
     "@typescript-eslint/parser": "^4.26.0",
-    "benchmark": "^2.1.4",
     "clean-publish": "^3.4.5",
     "coveralls-next": "^4.2.0",
     "eslint": "^7.27.0",
@@ -76,6 +75,7 @@
     "rollup": "^2.50.5",
     "rollup-plugin-typescript2": "^0.34.1",
     "shelljs": "^0.8.4",
+    "tinybench": "^2.5.1",
     "ts-jest": "^29.0.5",
     "ts-node": "^10.9.1",
     "typescript": "^4.3.2"

package.json

@@ -1,33 +1,40 @@
-const jmespath = require('../dist/lib')
-const Benchmark = require('benchmark');
-const suite = new Benchmark.Suite;
+const jmespath = require('../dist/lib');
+const { Bench } = require('tinybench');
 
-// add tests
-suite.add('Parser#single_expr', function() {
-  jmespath.compile("foo");
-})
-.add('Parser#single_subexpr', function() {
-  jmespath.compile("foo.bar");
-})
-.add('Parser#deeply_nested_50', function() {
-  jmespath.compile("j49.j48.j47.j46.j45.j44.j43.j42.j41.j40.j39.j38.j37.j36.j35.j34.j33.j32.j31.j30.j29.j28.j27.j26.j25.j24.j23.j22.j21.j20.j19.j18.j17.j16.j15.j14.j13.j12.j11.j10.j9.j8.j7.j6.j5.j4.j3.j2.j1.j0");
+async function runBenchmarks() {
 
-})
-.add('Parser#deeply_nested_50_index', function() {
-  jmespath.compile("[49][48][47][46][45][44][43][42][41][40][39][38][37][36][35][34][33][32][31][30][29][28][27][26][25][24][23][22][21][20][19][18][17][16][15][14][13][12][11][10][9][8][7][6][5][4][3][2][1][0]");
-})
-.add('Parser#basic_list_projection', function() {
-  jmespath.compile("foo[*].bar");
-})
-.on('cycle', function(event) {
-  const bench = event.target;
-  const mean = bench.stats.mean * 1000;
-  // const variance = bench.stats.variance * 1000000;
-  let result = 'Mean time: ' + mean.toFixed(6) + 'msec ';
-  result += event.target.toString();
-  console.log(result);
-})
-.on('complete', function() {
-})
-// run async
-.run({ 'async': false });
+  const bench = new Bench({
+    name: 'typescript-jmespath benchmarks',
+    warmupTime: 200,
+    warmup: true,
+    setup: (_task, mode) => {
+      if (mode === 'warmup' && typeof
+        global.gc === 'function') {
+        global.gc();
+      }
+    },
+    time: 1000,
+  })
+
+  bench
+    .add('Parser#single_expr', () => {
+      jmespath.compile("foo");
+    })
+    .add('Parser#single_subexpr', () => {
+      jmespath.compile("foo.bar");
+    })
+    .add('Parser#deeply_nested_50', () => {
+      jmespath.compile("j49.j48.j47.j46.j45.j44.j43.j42.j41.j40.j39.j38.j37.j36.j35.j34.j33.j32.j31.j30.j29.j28.j27.j26.j25.j24.j23.j22.j21.j20.j19.j18.j17.j16.j15.j14.j13.j12.j11.j10.j9.j8.j7.j6.j5.j4.j3.j2.j1.j0");
+    })
+    .add('Parser#deeply_nested_50_index', () => {
+      jmespath.compile("[49][48][47][46][45][44][43][42][41][40][39][38][37][36][35][34][33][32][31][30][29][28][27][26][25][24][23][22][21][20][19][18][17][16][15][14][13][12][11][10][9][8][7][6][5][4][3][2][1][0]");
+    })
+    .add('Parser#basic_list_projection', () => {
+      jmespath.compile("foo[*].bar");
+    });
+
+  await bench.run();
+  console.table(bench.table());
+}
+
+runBenchmarks().catch(console.error);