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# Copyright (C) 2006 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""Tests for bzr xml serialization performance."""
from bzrlib import (
cache_utf8,
xml5,
)
from bzrlib.benchmarks import Benchmark
class BenchXMLSerializer(Benchmark):
"""Benchmarks for serializing to/from XML."""
def test_write_to_string_kernel_like_inventory(self):
# On jam's machine, ElementTree serializer took: 2161ms/13487ms
# with Robert's serializer: 631ms/10770ms
# with Entity escaper: 487ms/11636ms
# caching Entity escaper, empty cache: 448ms/ 9489ms
# caching Entity escaper, full cache: 375ms/ 9489ms
# passing around function: 406ms/ 8942ms
# cached, passing around function: 328ms/11248ms
# removing extra function: 354ms/ 8942ms
# cached, removing extra function: 275ms/11248ms
# no cache, real utf8: 363ms/11697ms
# cached, real utf8: 272ms/12827ms
# Really all we want is a real inventory
inv = self.make_kernel_like_inventory()
xml5._clear_cache()
# We want a real tree with lots of file ids and sha strings, etc.
self.time(xml5.serializer_v5.write_inventory_to_string, inv)
def test_write_kernel_like_inventory(self):
# Really all we want is a real inventory
inv = self.make_kernel_like_inventory()
xml5._clear_cache()
f = open('kernel-like-inventory', 'wb')
try:
# We want a real tree with lots of file ids and sha strings, etc.
self.time(xml5.serializer_v5.write_inventory, inv, f)
finally:
f.close()
def test_write_to_string_cached_kernel_like_inventory(self):
inv = self.make_kernel_like_inventory()
xml5._clear_cache()
# We want a real tree with lots of file ids and sha strings, etc.
xml5.serializer_v5.write_inventory_to_string(inv)
self.time(xml5.serializer_v5.write_inventory_to_string, inv)
def test_read_from_string_kernel_like_inventory(self):
inv = self.make_kernel_like_inventory()
as_str = xml5.serializer_v5.write_inventory_to_string(inv)
cache_utf8.clear_encoding_cache()
read_inv = self.time(xml5.serializer_v5.read_inventory_from_string,
as_str)
# TODO: make sure the final inventory is equal as a sanity check
def test_read_from_string_cached_kernel_like_inventory(self):
cache_utf8.clear_encoding_cache()
inv = self.make_kernel_like_inventory()
as_str = xml5.serializer_v5.write_inventory_to_string(inv)
xml5.serializer_v5.read_inventory_from_string(as_str)
read_inv = self.time(xml5.serializer_v5.read_inventory_from_string,
as_str)
# TODO: make sure the final inventory is equal as a sanity check
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