Benchmark: bigint-vs-string

Script Preparation code:

/**
 * Gets a random number between 2 bigInts
 * @param {BigInt} max
 * @param {BigInt} [min=0n]
 * @returns {BigInt}
 */
function randomBetween(max, min = 0n) {
  max = BigInt(max);
  min = BigInt(min);
  if (max < min) {
    [max, min] = [min, max]
  }
  const range = max - min;
  const count = calculatePrecision(range);
  let random = new Array(Number(count))
    .fill(0)
    .map(() => BigInt(Math.floor(Math.random() * (2 ** 32))))
    .map((int, index) => int << (BigInt(index) * 32n))
    .reduce((acc, int) => acc + int, 0n);


  let bitCount = countBits(range);
  let minRandom = random >> ((32n * count) - bitCount);
  if (minRandom > range) return randomBetween(max, min);
  else return minRandom + min;
}

function calculatePrecision(range) {
  const result = range >> 32n;
  if (result >= 1n) {
    return calculatePrecision(result) + 1n;
  }
  return 1n;
}

function countBits(range) {
  const result = range >> 1n;
  if (result >= 1n) {
    return countBits(result) + 1n;
  }
  return 1n;
}

const a = randomBetween(10n ** 20n, 10n ** 19n)
const b = randomBetween(10n ** 20n, 10n ** 19n)
const aBigInt = a;
const bBigInt = b;
const aString = a.toString();
const bString = b.toString();
const aFloat = Number(a);
const bFloat = Number(b);

Tests:

float multiply
return aFloat * bFloat;
bigInt multiply
return aBigInt * bBigInt;
float compare
return aFloat === bFloat;
bigInt compare
return aBigInt === bBigInt
string compare
return aString === bString
float greater
return aFloat > bFloat;
bigint greater
return aBigInt > bBigInt;
string greater
return aString > bString
toString bigInt
return aBigInt.toString();
toString float
return aFloat.toString();
toFloat bigInt
return Number(aBigInt);
toFloat string
return parseInt(aString, 10);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
float multiply
bigInt multiply
float compare
bigInt compare
string compare
float greater
bigint greater
string greater
toString bigInt
toString float
toFloat bigInt
toFloat string

Fastest: N/A

Slowest: N/A

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bigint-vs-string (version: 0)

Comparing performance of: float multiply vs bigInt multiply vs float compare vs bigInt compare vs string compare vs float greater vs bigint greater vs string greater vs toString bigInt vs toString float vs toFloat bigInt vs toFloat string

Created: 6 years ago by: Guest

Jump to the latest result

float multiply

bigInt multiply

float compare

bigInt compare

string compare

float greater

bigint greater

string greater

toString bigInt

toString float

toFloat bigInt

toFloat string

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

No previous run results