Performance testing

FlatLoopVsTripleLoop.js

/* CONCLUSION */
// Surprisingly, for me, the triple loop performed better than the flat loop

/* INITIALISATION */
let xseed = random(10);
let yseed = random(10);
let zseed = random(10);
let step = 50;
let noiseVariance = 0.02;
let sideLength = 200;
for (let x=0;x<sideLength;x+=step) {
  for (let y=0;y<sideLength;y+=step) {
    for (let z=0;z<sideLength;z+=step) {
      let xnoise = xseed + noiseVariance * x;
      let ynoise = yseed + noiseVariance * y;
      let znoise = zseed + noiseVariance * z;
      points.push({
        x, y, z, xnoise,ynoise,znoise
      })
    }  
  }
}
pointsLength = points.length;
function emptyFunction(x,y,z,noiseFactor) {
  //
}

/*TESTING*/
let flatPoints = [];
for (let runs=0;runs<50;runs++) {
  let startTime = millis();
  for(let i=0;i<pointsLength;i++) {
    emptyFunction(points[i].x,points[i].y,points[i].z,noise(points[i].xnoise,points[i].ynoise,points[i].znoise));
  }
  let totalTime = millis()-startTime;
  flatPoints.push(totalTime); 
}
console.log(`Flat points, 50 runs: ${flatPoints.reduce( (a,b)=> a+b )}`) // 39.9799999431707
  
let forgrid = [];
for (let runs=0;runs<50;runs++){
  let startTime = millis();
  for (let x=0;x<sideLength;x+=step) {
    for (let y=0;y<sideLength;y+=step) {
      for (let z=0;z<sideLength;z+=step) {
        let xnoise = xseed + noiseVariance * x;
        let ynoise = yseed + noiseVariance * y;
        let znoise = zseed + noiseVariance * z;
        emptyFunction(x,y,z,noise(xnoise,ynoise,znoise));
      }  
    }
  }
  let totalTime = millis()-startTime;
  forgrid.push(totalTime);
}
console.log(`For grid, 50 runs: ${forgrid.reduce( (a,b)=> a+b )}`) // 6.684999796561897