Run results for: Math.cbrt() vs. Binary search cbrt fix

Run details:

User agent: Mozilla/5.0 (X11; CrOS x86_64 14092.77.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.107 Safari/537.36

Browser: Chrome 93

Operating system: Chrome OS 14092.77.0

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Math.cbrt()	754411.8 Ops/sec
Binary search cbrt	494481.1 Ops/sec

Script Preparation code:

function cbrt(x) {
  if (x < 0.0)
    return NaN;
  if (x < 1.0)
    return 1.0 / cbrt(1.0 / x);
  let xhi = x;
  let xlo = 0.0;
  let guess = x / 3.0;
  let next;
  while ((guess * guess * guess) != x) {
    if ((guess * guess * guess) > x)
      xhi = guess;
    else xlo = guess;
    if ((next = (xhi + xlo) / 2.0) == guess)
      break;
    guess = next;
  }
  return guess;
}

Tests:

Math.cbrt()
Math.cbrt(Math.random() * 1000000);
Binary search cbrt
cbrt(Math.random() * 1000000);