timeit_json_respnse.py

from timeit import Timer

def test_json_response():
    new_json_response = """\
    from django.http import HttpResponse
    from django.utils import simplejson

    class JsonResponse(HttpResponse):
        def __init__(self, data=None, content_type=None, **kwargs):
            if not content_type:
                content_type = 'application/json; charset=utf-8'
            content = simplejson.dumps(data)
            super(JsonResponse, self).__init__(
                content,
                content_type=content_type,
                **kwargs
            )

    data = []
    for i in range(0, 100):
        data.append({'key': 'value', 'int': 42, 'a': [1, 'hello world']})
    resp = JsonResponse(data)
    """

    t = Timer(stmt=new_json_response)
    print "new JsonResponse %.2f usec/pass" % (1000000 * t.timeit(number=10000)/10000)

    old_json_response = """\
    from django.http import HttpResponse
    from django.utils import simplejson

    class JsonResponse(HttpResponse):
        def __init__(self, data=None, status=None, content_type=None, **kwargs):
            if not content_type:
                content_type = 'application/json; charset=utf-8'
            HttpResponse.__init__(self, '', status=status,
                    content_type=content_type)
            simplejson.dump(data, self, **kwargs)

    data = []
    for i in range(0, 100):
        data.append({'key': 'value', 'int': 42, 'a': [1, 'hello world']})
    resp = JsonResponse(data)
    """

    t = Timer(stmt=old_json_response)
    print "old JsonResponse %.2f usec/pass" % (1000000 * t.timeit(number=10000)/10000)

if __name__ == '__main__':
    test_json_response()