[querier] introduce RepeatList class, used to optimize size of data returned for result set description
When rql query has no ambiguity, we used to return the same description * N
where N is the size of the result set. Returning RepeatList class avoid
that multiplication.
According to quick benchmark this improve performance for result set whose
size is ~ > 50, has very small penalty for rset < 50, and in any case improve
the size of data to be transfered over the network through pyro connection.
"""
:organization: Logilab
:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
"""
import sys
import os
from cStringIO import StringIO
from logilab.common.testlib import TestCase, unittest_main
if os.environ.get('APYCOT_ROOT'):
root = os.environ['APYCOT_ROOT']
CUBES_DIR = '%s/local/share/cubicweb/cubes/' % root
os.environ['CW_CUBES_PATH'] = CUBES_DIR
REGISTRY_DIR = '%s/etc/cubicweb.d/' % root
os.environ['CW_INSTANCES_DIR'] = REGISTRY_DIR
from cubicweb.cwconfig import CubicWebConfiguration
CubicWebConfiguration.load_cwctl_plugins()
class CubicWebCtlTC(TestCase):
def setUp(self):
self.stream = StringIO()
sys.stdout = self.stream
def tearDown(self):
sys.stdout = sys.__stdout__
def test_list(self):
from cubicweb.cwctl import ListCommand
ListCommand().run([])
if __name__ == '__main__':
unittest_main()