fast-csv-benchmark.js

  var csv = require('fast-csv');
  var fs = require('fs');

  var data = [];

  var startTime = Date.now();
  for (var i = 0; i < 1000000; i++) {
    var row = [];
    row = [
      Math.floor(Math.random() * 4294967295),
      Math.floor(Math.random() * 4294967295),
      Math.floor(Math.random() * 4294967295),
      Math.floor(Math.random() * 4294967295)
    ];
    data.push(row);
  };

  var dataGenerationTime = Date.now();
  console.log(Date() + " - " + data.length + " data rows randomly generated. Converting to CSV...");
  csv.writeToString(data, {
      includeEndRowDelimiter: true
    },
    function(err, csvdata) {
      var csvGenerationTime = Date.now();
      console.log(Date() + " - " + "CSV created. Writing CSV to disk");
      if (err) {
        console.log(err);
      }
      fs.writeFile("csv-generated-data.csv", csvdata, function(err) {
        if (err) {
          console.log("Error writing file: " + err);
        } else {
          var fileWriteTime = Date.now();
          console.log(Date() + " - " + "Wrote file succesfully. Results: ");
          var dataGenTimeElapsed = dataGenerationTime - startTime;
          var csvGenTimeElapsed = csvGenerationTime - dataGenerationTime;
          var fileWriteTimeElapsed = fileWriteTime - csvGenerationTime;
          var str = " - Random Data Generation Time: " + dataGenTimeElapsed + " milliseconds\n";
          str += " - CSV Generation Time: " + csvGenTimeElapsed + " milliseconds\n";
          str += " - File Write Time: " + fileWriteTimeElapsed + " milliseconds\n";
          console.log(str);
        }
      });
    }
  );