mongodb growth test

growth_test.js

function randomString(length) {
  var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";
  var string_length = length;
  var randomstring = '';
  for (var i=0; i<string_length; i++) {
    var rnum = Math.floor(Math.random() * chars.length);
    randomstring += chars.substring(rnum,rnum+1);
  }
  return randomstring;
}

function payload(){
  return randomString(Math.floor(Math.random() * 100));
}

function run(){
  db.test.createIndex({i:1});

  for (n=0;n<20;n=n+1)
  {
    for (v=0;v<100000;v=v+1)
    {
      p = payload();
      db.test.insert({i:v, payload:p});
    }
    db.test.remove({});
    s = db.test.stats().toSource()
    v = db.test.validate().toSource()
    print(n + ": size/storage: " + s.match(/size:(\d*)/)[1] + "/" + s.match(/storageSize:(\d*)/)[1] + " | " + v.match(/deleted: n: \d* size: \d*/))
  }
  print('droping the database')
  db.dropDatabase();
};

run();