Benchmarks: Compare es5 and es2015

calc.js

const { readFile } = require('fs').promises;

(async () => {
  const n = 3;

  /**
      1 middleware
      5 middleware
      10 middleware
      15 middleware
      20 middleware
      30 middleware
      50 middleware
      100 middleware
    */
  const middlewares = {};

  // 3 times
  for (let i = 1; i < n + 1; i++) {
    const res = await readFile(`./res${i}`, 'utf-8');
    const data = res
      .split('\n')
      .filter(Boolean)
      .map((s) => s.trim());

    for (let j = 1; j < data.length; j += 2) {
      if (middlewares[data[j - 1]] === undefined) {
        middlewares[data[j - 1]] = 0;
      }

      middlewares[data[j - 1]] += Number(data[j]);
    }
  }

  Object.entries(middlewares).forEach(([key, value]) => {
    console.log(key, 'average:', value / n);
  });
})();

result.md

v12.2.0

master

1

  1 middleware
  9652.18

  5 middleware
  9355.48

  10 middleware
  9550.42

  15 middleware
  6078.65

  20 middleware
  8696.78

  30 middleware
  9076.64

  50 middleware
  6546.11

  100 middleware
  5747.77

2

  1 middleware
  9378.22

  5 middleware
  9254.36

  10 middleware
  9395.49

  15 middleware
  8978.95

  20 middleware
  8012.05

  30 middleware
  8047.60

  50 middleware
  8509.17

  100 middleware
  7631.24

3

  1 middleware
  8409.74

  5 middleware
  9034.98

  10 middleware
  8871.86

  15 middleware
  8975.99

  20 middleware
  8590.74

  30 middleware
  8728.41

  50 middleware
  8331.69

  100 middleware
  7734.54

es2015

1

  1 middleware
  8898.41

  5 middleware
  9410.14

  10 middleware
  8949.18

  15 middleware
  8929.16

  20 middleware
  8985.00

  30 middleware
  8175.30

  50 middleware
  8409.48

  100 middleware
  7204.69

2

  1 middleware
  8628.65

  5 middleware
  8621.92

  10 middleware
  8219.50

  15 middleware
  9111.55

  20 middleware
  8199.48

  30 middleware
  8071.27

  50 middleware
  7782.98

  100 middleware
  7577.18

3

  1 middleware
  8355.30

  5 middleware
  8110.18

  10 middleware
  8868.90

  15 middleware
  8905.01

  20 middleware
  8814.74

  30 middleware
  8122.96

  50 middleware
  7974.61

  100 middleware
  7859.60

v10.15.3

master

1

  1 middleware
  9215.30

  5 middleware
  7250.22

  10 middleware
  8945.82

  15 middleware
  8654.52

  20 middleware
  9153.04

  30 middleware
  8206.03

  50 middleware
  8075.00

  100 middleware
  7181.42

2

  1 middleware
  9814.70

  5 middleware
  6154.18

  10 middleware
  6023.72

  15 middleware
  7380.39

  20 middleware
  6723.84

  30 middleware
  4404.24

  50 middleware
  7528.97

  100 middleware
  6816.66

3

  1 middleware
  9490.98

  5 middleware
  9279.37

  10 middleware
  8830.61

  15 middleware
  9285.58

  20 middleware
  9293.66

  30 middleware
  8501.05

  50 middleware
  8214.72

  100 middleware
  6747.00

es2015

1

  1 middleware
  9321.77

  5 middleware
  5340.82

  10 middleware
  5348.22

  15 middleware
  8777.59

  20 middleware
  8422.49

  30 middleware
  8382.60

  50 middleware
  8075.40

  100 middleware
  5993.87

2

  1 middleware
  8672.85

  5 middleware
  8767.52

  10 middleware
  8246.11

  15 middleware
  8697.80

  20 middleware
  8693.13

  30 middleware
  8297.06

  50 middleware
  8475.92

  100 middleware
  6919.62

3

  1 middleware
  9161.62

  5 middleware
  9249.08

  10 middleware
  8722.49

  15 middleware
  8325.87

  20 middleware
  8798.12

  30 middleware
  8699.74

  50 middleware
  8013.51

  100 middleware
  6634.43

v8.16.0

master

1

  1 middleware
  4646.04

  5 middleware
  5243.97

  10 middleware
  7425.29

  15 middleware
  3642.89

  20 middleware
  6963.33

  30 middleware
  6656.05

  50 middleware
  5811.14

  100 middleware
  5314.85

2

  1 middleware
  8704.82

  5 middleware
  9071.57

  10 middleware
  9065.44

  15 middleware
  8655.19

  20 middleware
  8025.97

  30 middleware
  8278.85

  50 middleware
  7247.66

  100 middleware
  6381.96

3

  1 middleware
  9045.02

  5 middleware
  8287.76

  10 middleware
  8632.22

  15 middleware
  8167.67

  20 middleware
  8566.36

  30 middleware
  6213.47

  50 middleware
  6121.48

  100 middleware
  4004.15

es2015

1

  1 middleware
  8891.61

  5 middleware
  8305.69

  10 middleware
  8322.30

  15 middleware
  8169.57

  20 middleware
  8097.42

  30 middleware
  8112.78

  50 middleware
  7302.37

  100 middleware
  5907.54

2

  1 middleware
  8361.24

  5 middleware
  7926.33

  10 middleware
  7624.84

  15 middleware
  7928.33

  20 middleware
  6033.38

  30 middleware
  7608.90

  50 middleware
  7088.14

  100 middleware
  5602.67

3

  1 middleware
  7907.50

  5 middleware
  8642.01

  10 middleware
  7860.14

  15 middleware
  8342.29

  20 middleware
  7739.36

  30 middleware
  7096.14

  50 middleware
  6928.45

  100 middleware
  5487.15