prototype vs closures

JavaScript performance comparison

Revision 74 of this test case created by

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  function Person(name) {
  	this.name = name;
  }
  Person.prototype.get_name = function() {
  	return this.name;
  };
  Person.prototype.set_name = function(name) {
  	this.name = name;
  };
  Person.prototype.set_name1 = function(name) {
  	this.name = name;
  };
  Person.prototype.set_name2 = function(name) {
  	this.name = name;
  };
  Person.prototype.set_name3 = function(name) {
  	this.name = name;
  };
  Person.prototype.set_name4 = function(name) {
  	this.name = name;
  };
  Person.prototype.set_name5 = function(name) {
  	this.name = name;
  };
  
  function PersonClosure(pname) {
    var _name = pname;
  
    this.get_name = function() {
      return _name;
    };
    this.set_name = function(name) {
      _name = name;
    };
    this.set_name1 = function(name) {
      _name = name;
    };
    this.set_name2 = function(name) {
      _name = name;
    };
    this.set_name3 = function(name) {
      _name = name;
    };
    this.set_name4 = function(name) {
      _name = name;
    };
    this.set_name5 = function(name) {
      _name = name;
    };
  };
  
  function get_name(self) {
    return self.name;
  }
  function set_name(self, name) {
    self.name = name;
  }
  function set_name1(name) {
    self.name = name;
  }
  function set_name2(name) {
    self.name = name;
  }
  function set_name3(name) {
    self.name = name;
  }
  function set_name4(name) {
    self.name = name;
  }
  function set_name5(name) {
    self.name = name;
  }
  function PersonClosure2(name) {
    this.name = name;
  
    var self = this;
    this.get_name = function() {
      return get_name(self);
    };
    this.set_name = function(name) {
      set_name(self, name);
    };
    this.set_name1 = function(name) {
      set_name1(self, name);
    };
    this.set_name2 = function(name) {
      set_name2(self, name);
    };
    this.set_name3 = function(name) {
      set_name3(self, name);
    };
    this.set_name4 = function(name) {
      set_name4(self, name);
    };
    this.set_name5 = function(name) {
      set_name5(self, name);
    };
  };
  
  var _p = new Person('John');
  var _c = new PersonClosure('John');
  var _c2 = new PersonClosure2('John');

};
</script>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Prototype init & 10 reads
var p = new Person('John');

for (var i = 0; i < 10; ++i) {
    p.get_name();
}
pending…
Closure init & 10 reads
var c = new PersonClosure('John');

for (var i = 0; i < 10; ++i) {
    c.get_name();
}
pending…
Prototype init & 10 writes
var p = new Person('John');

for (var i = 0; i < 10; ++i) {
    p.set_name('Jane');
}
pending…
Closure init & 10 writes
var c = new PersonClosure('John');

for (var i = 0; i < 10; ++i) {
    c.set_name('Jane');
}
pending…
Prototype init & 20 reads
var p = new Person('John');

for (var i = 0; i < 20; ++i) {
    p.get_name();
}
pending…
Closure init & 20 reads
var c = new PersonClosure('John');

for (var i = 0; i < 20; ++i) {
    c.get_name();
}
pending…
Prototype init & 20 writes
var p = new Person('John');

for (var i = 0; i < 20; ++i) {
    p.set_name('Jane');
}
pending…
Closure init & 20 writes
var c = new PersonClosure('John');

for (var i = 0; i < 20; ++i) {
    c.set_name('Jane');
}
pending…
Prototype init & 30 reads
var p = new Person('John');

for (var i = 0; i < 30; ++i) {
    p.get_name();
}
pending…
Closure init & 30 reads
var c = new PersonClosure('John');

for (var i = 0; i < 30; ++i) {
    c.get_name();
}
pending…
Prototype init & 30 writes
var p = new Person('John');

for (var i = 0; i < 30; ++i) {
    p.set_name('Jane');
}
pending…
Closure init & 30 writes
var c = new PersonClosure('John');

for (var i = 0; i < 30; ++i) {
    c.set_name('Jane');
}
pending…
Prototype init & 100 reads
var p = new Person('John');

for (var i = 0; i < 100; ++i) {
    p.get_name();
}
pending…
Closure init & 100 reads
var c = new PersonClosure('John');

for (var i = 0; i < 100; ++i) {
    c.get_name();
}
pending…
Prototype init & 100 writes
var p = new Person('John');

for (var i = 0; i < 100; ++i) {
    p.set_name('Jane');
}
pending…
Closure init & 100 writes
var c = new PersonClosure('John');

for (var i = 0; i < 100; ++i) {
    c.set_name('Jane');
}
pending…
Prototype init
var p = new Person('John');
pending…
Closure init
var c = new PersonClosure('John');
pending…
Prototype read and write
_p.get_name();
_p.set_name('Jane');
_p.get_name();
_p.set_name('John');
pending…
Closure read and write
_c.get_name();
_c.set_name('Jane');
_c.get_name();
_c.set_name('John');
pending…
Closure2 init & 10 reads
var c = new PersonClosure2('John');

for (var i = 0; i < 10; ++i) {
    c.get_name();
}
pending…
Closure2 init & 10 writes
var c = new PersonClosure2('John');

for (var i = 0; i < 10; ++i) {
    c.set_name('Jane');
}
pending…
Closure2 init & 20 reads
var c = new PersonClosure2('John');

for (var i = 0; i < 20; ++i) {
    c.get_name();
}
pending…
Closure2 init & 20 writes
var c = new PersonClosure2('John');

for (var i = 0; i < 20; ++i) {
    c.set_name('Jane');
}
pending…
Closure2 init & 30 reads
var c = new PersonClosure2('John');

for (var i = 0; i < 30; ++i) {
    c.get_name();
}
pending…
Closure2 init & 30 writes
var c = new PersonClosure2('John');

for (var i = 0; i < 30; ++i) {
    c.set_name('Jane');
}
pending…
Closure2 init & 100 reads
var c = new PersonClosure2('John');

for (var i = 0; i < 100; ++i) {
    c.get_name();
}
pending…
Closure2 init & 100 writes
var c = new PersonClosure2('John');

for (var i = 0; i < 100; ++i) {
    c.set_name('Jane');
}
pending…
Closure init
var c = new PersonClosure2('John');
pending…
Closure2 read and write
_c2.get_name();
_c2.set_name('Jane');
_c2.get_name();
_c2.set_name('John');
pending…

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Revisions

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