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Diffstat (limited to 'source4/dsdb/tests/python/ad_dc_search_performance.py')
| -rw-r--r-- | source4/dsdb/tests/python/ad_dc_search_performance.py | 296 |
1 files changed, 296 insertions, 0 deletions
diff --git a/source4/dsdb/tests/python/ad_dc_search_performance.py b/source4/dsdb/tests/python/ad_dc_search_performance.py new file mode 100644 index 0000000..aabcc22 --- /dev/null +++ b/source4/dsdb/tests/python/ad_dc_search_performance.py @@ -0,0 +1,296 @@ +#!/usr/bin/env python3 +# -*- coding: utf-8 -*- + +import optparse +import sys +sys.path.insert(0, 'bin/python') + +import os +import samba +import samba.getopt as options +import random +import time +import itertools + +# We try to use the test infrastructure of Samba 4.3+, but if it +# doesn't work, we are probably in a back-ported patch and trying to +# run on 4.1 or something. +# +# Don't copy this horror into ordinary tests -- it is special for +# performance tests that want to apply to old versions. +try: + from samba.tests.subunitrun import SubunitOptions, TestProgram + ANCIENT_SAMBA = False +except ImportError: + ANCIENT_SAMBA = True + samba.ensure_external_module("testtools", "testtools") + samba.ensure_external_module("subunit", "subunit/python") + from subunit.run import SubunitTestRunner + import unittest + +from samba.samdb import SamDB +from samba.auth import system_session +from ldb import Message, MessageElement, Dn, LdbError +from ldb import FLAG_MOD_ADD +from ldb import SCOPE_SUBTREE + +parser = optparse.OptionParser("ad_dc_search_performance.py [options] <host>") +sambaopts = options.SambaOptions(parser) +parser.add_option_group(sambaopts) +parser.add_option_group(options.VersionOptions(parser)) + +if not ANCIENT_SAMBA: + subunitopts = SubunitOptions(parser) + parser.add_option_group(subunitopts) + +# use command line creds if available +credopts = options.CredentialsOptions(parser) +parser.add_option_group(credopts) +opts, args = parser.parse_args() + + +if len(args) < 1: + parser.print_usage() + sys.exit(1) + +host = args[0] + +lp = sambaopts.get_loadparm() +creds = credopts.get_credentials(lp) + +random.seed(1) + + +class PerfTestException(Exception): + pass + + +BATCH_SIZE = 1000 +N_GROUPS = 5 + + +class GlobalState(object): + next_user_id = 0 + n_groups = 0 + next_linked_user = 0 + next_relinked_user = 0 + next_linked_user_3 = 0 + next_removed_link_0 = 0 + + +class UserTests(samba.tests.TestCase): + + def add_if_possible(self, *args, **kwargs): + """In these tests sometimes things are left in the database + deliberately, so we don't worry if we fail to add them a second + time.""" + try: + self.ldb.add(*args, **kwargs) + except LdbError: + pass + + def setUp(self): + super(UserTests, self).setUp() + self.state = GlobalState # the class itself, not an instance + self.lp = lp + self.ldb = SamDB(host, credentials=creds, + session_info=system_session(lp), lp=lp) + self.base_dn = self.ldb.domain_dn() + self.ou = "OU=pid%s,%s" % (os.getpid(), self.base_dn) + self.ou_users = "OU=users,%s" % self.ou + self.ou_groups = "OU=groups,%s" % self.ou + self.ou_computers = "OU=computers,%s" % self.ou + + for dn in (self.ou, self.ou_users, self.ou_groups, + self.ou_computers): + self.add_if_possible({ + "dn": dn, + "objectclass": "organizationalUnit"}) + + def tearDown(self): + super(UserTests, self).tearDown() + + def test_00_00_do_nothing(self): + # this gives us an idea of the overhead + pass + + def _prepare_n_groups(self, n): + self.state.n_groups = n + for i in range(n): + self.add_if_possible({ + "dn": "cn=g%d,%s" % (i, self.ou_groups), + "objectclass": "group"}) + + def _add_users(self, start, end): + for i in range(start, end): + self.ldb.add({ + "dn": "cn=u%d,%s" % (i, self.ou_users), + "objectclass": "user"}) + + def _add_users_ldif(self, start, end): + lines = [] + for i in range(start, end): + lines.append("dn: cn=u%d,%s" % (i, self.ou_users)) + lines.append("objectclass: user") + lines.append("") + self.ldb.add_ldif('\n'.join(lines)) + + def _test_unindexed_search(self): + expressions = [ + ('(&(objectclass=user)(description=' + 'Built-in account for adminstering the computer/domain))'), + '(description=Built-in account for adminstering the computer/domain)', + '(objectCategory=*)', + '(samaccountname=Administrator*)' + ] + for expression in expressions: + t = time.time() + for i in range(50): + self.ldb.search(self.ou, + expression=expression, + scope=SCOPE_SUBTREE, + attrs=['cn']) + print('%d %s took %s' % (i, expression, + time.time() - t), + file=sys.stderr) + + def _test_indexed_search(self): + expressions = ['(objectclass=group)', + '(samaccountname=Administrator)' + ] + for expression in expressions: + t = time.time() + for i in range(10000): + self.ldb.search(self.ou, + expression=expression, + scope=SCOPE_SUBTREE, + attrs=['cn']) + print('%d runs %s took %s' % (i, expression, + time.time() - t), + file=sys.stderr) + + def _test_complex_search(self): + classes = ['samaccountname', 'objectCategory', 'dn', 'member'] + values = ['*', '*t*', 'g*', 'user'] + comparators = ['=', '<=', '>='] # '~=' causes error + maybe_not = ['!(', ''] + joiners = ['&', '|'] + + # The number of permutations is 18432, which is not huge but + # would take hours to search. So we take a sample. + all_permutations = list(itertools.product(joiners, + classes, classes, + values, values, + comparators, comparators, + maybe_not, maybe_not)) + random.seed(1) + + for (j, c1, c2, v1, v2, + o1, o2, n1, n2) in random.sample(all_permutations, 100): + expression = ''.join(['(', j, + '(', n1, c1, o1, v1, + '))' if n1 else ')', + '(', n2, c2, o2, v2, + '))' if n2 else ')', + ')']) + print(expression) + self.ldb.search(self.ou, + expression=expression, + scope=SCOPE_SUBTREE, + attrs=['cn']) + + def _test_member_search(self, rounds=10): + expressions = [] + for d in range(50): + expressions.append('(member=cn=u%d,%s)' % (d + 500, self.ou_users)) + expressions.append('(member=u%d*)' % (d + 700,)) + for i in range(N_GROUPS): + expressions.append('(memberOf=cn=g%d,%s)' % (i, self.ou_groups)) + expressions.append('(memberOf=cn=g%d*)' % (i,)) + expressions.append('(memberOf=cn=*%s*)' % self.ou_groups) + + for expression in expressions: + t = time.time() + for i in range(rounds): + self.ldb.search(self.ou, + expression=expression, + scope=SCOPE_SUBTREE, + attrs=['cn']) + print('%d runs %s took %s' % (i, expression, + time.time() - t), + file=sys.stderr) + + def _test_add_many_users(self, n=BATCH_SIZE): + s = self.state.next_user_id + e = s + n + self._add_users(s, e) + self.state.next_user_id = e + + def _test_add_many_users_ldif(self, n=BATCH_SIZE): + s = self.state.next_user_id + e = s + n + self._add_users_ldif(s, e) + self.state.next_user_id = e + + def _link_user_and_group(self, u, g): + m = Message() + m.dn = Dn(self.ldb, "CN=g%d,%s" % (g, self.ou_groups)) + m["member"] = MessageElement("cn=u%d,%s" % (u, self.ou_users), + FLAG_MOD_ADD, "member") + self.ldb.modify(m) + + def _test_link_many_users(self, n=BATCH_SIZE): + self._prepare_n_groups(N_GROUPS) + s = self.state.next_linked_user + e = s + n + for i in range(s, e): + # put everyone in group 0, and one other group + g = i % (N_GROUPS - 1) + 1 + self._link_user_and_group(i, g) + self._link_user_and_group(i, 0) + self.state.next_linked_user = e + + test_00_01_adding_users_1000 = _test_add_many_users + + test_00_10_complex_search_1k_users = _test_complex_search + test_00_11_unindexed_search_1k_users = _test_unindexed_search + test_00_12_indexed_search_1k_users = _test_indexed_search + test_00_13_member_search_1k_users = _test_member_search + + test_01_02_adding_users_2000_ldif = _test_add_many_users_ldif + test_01_03_adding_users_3000 = _test_add_many_users + + test_01_10_complex_search_3k_users = _test_complex_search + test_01_11_unindexed_search_3k_users = _test_unindexed_search + test_01_12_indexed_search_3k_users = _test_indexed_search + + def test_01_13_member_search_3k_users(self): + self._test_member_search(rounds=5) + + test_02_01_link_users_1000 = _test_link_many_users + test_02_02_link_users_2000 = _test_link_many_users + test_02_03_link_users_3000 = _test_link_many_users + + test_03_10_complex_search_linked_users = _test_complex_search + test_03_11_unindexed_search_linked_users = _test_unindexed_search + test_03_12_indexed_search_linked_users = _test_indexed_search + + def test_03_13_member_search_linked_users(self): + self._test_member_search(rounds=2) + + +if "://" not in host: + if os.path.isfile(host): + host = "tdb://%s" % host + else: + host = "ldap://%s" % host + + +if ANCIENT_SAMBA: + runner = SubunitTestRunner() + if not runner.run(unittest.TestLoader().loadTestsFromTestCase( + UserTests)).wasSuccessful(): + sys.exit(1) + sys.exit(0) +else: + TestProgram(module=__name__, opts=subunitopts) |