← Back to branch summary

~bzr-pqm/bzr/bzr.dev

« back to all changes in this revision

Viewing changes to bzrlib/benchmarks/bench_xml.py

  • Committer: Robert Collins
  • Date: 2005-10-06 22:15:52 UTC
  • mfrom: (1185.13.2)
  • mto: This revision was merged to the branch mainline in revision 1420.
  • Revision ID: robertc@robertcollins.net-20051006221552-9b15c96fa504e0ad
merge from upstream

Show diffs side-by-side

added added

removed removed

Lines of Context:
bzrlib/benchmarks/bench_xml.py
1
 
# Copyright (C) 2006 by Canonical Ltd
2
 
#
3
 
# This program is free software; you can redistribute it and/or modify
4
 
# it under the terms of the GNU General Public License version 2 as published by
5
 
# the Free Software Foundation.
6
 
#
7
 
# This program is distributed in the hope that it will be useful,
8
 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
9
 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
10
 
# GNU General Public License for more details.
11
 
#
12
 
# You should have received a copy of the GNU General Public License
13
 
# along with this program; if not, write to the Free Software
14
 
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
15
 
 
16
 
"""Tests for bzr xml serialization performance."""
17
 
 
18
 
from bzrlib import (
19
 
    cache_utf8,
20
 
    xml5,
21
 
    )
22
 
from bzrlib.benchmarks import Benchmark
23
 
 
24
 
 
25
 
class BenchXMLSerializer(Benchmark):
26
 
 
27
 
    def test_write_to_string_kernel_like_inventory(self):
28
 
        # On jam's machine, ElementTree serializer took: 2161ms/13487ms
29
 
        #                      with Robert's serializer:  631ms/10770ms
30
 
        #                      with Entity escaper:       487ms/11636ms
31
 
        #           caching Entity escaper, empty cache:  448ms/ 9489ms
32
 
        #           caching Entity escaper, full cache:   375ms/ 9489ms
33
 
        #                      passing around function:   406ms/ 8942ms
34
 
        #              cached, passing around function:   328ms/11248ms
35
 
        #                      removing extra function:   354ms/ 8942ms
36
 
        #              cached, removing extra function:   275ms/11248ms
37
 
        #                          no cache, real utf8:   363ms/11697ms
38
 
        #                            cached, real utf8:   272ms/12827ms
39
 
        # Really all we want is a real inventory
40
 
        inv = self.make_kernel_like_inventory()
41
 
 
42
 
        xml5._clear_cache()
43
 
        # We want a real tree with lots of file ids and sha strings, etc.
44
 
        self.time(xml5.serializer_v5.write_inventory_to_string, inv)
45
 
 
46
 
    def test_write_kernel_like_inventory(self):
47
 
        # Really all we want is a real inventory
48
 
        inv = self.make_kernel_like_inventory()
49
 
 
50
 
        xml5._clear_cache()
51
 
        f = open('kernel-like-inventory', 'wb')
52
 
        try:
53
 
            # We want a real tree with lots of file ids and sha strings, etc.
54
 
            self.time(xml5.serializer_v5.write_inventory, inv, f)
55
 
        finally:
56
 
            f.close()
57
 
 
58
 
    def test_write_to_string_cached_kernel_like_inventory(self):
59
 
        inv = self.make_kernel_like_inventory()
60
 
 
61
 
        xml5._clear_cache()
62
 
        # We want a real tree with lots of file ids and sha strings, etc.
63
 
        xml5.serializer_v5.write_inventory_to_string(inv)
64
 
 
65
 
        self.time(xml5.serializer_v5.write_inventory_to_string, inv)
66
 
 
67
 
    def test_read_from_string_kernel_like_inventory(self):
68
 
        inv = self.make_kernel_like_inventory()
69
 
        as_str = xml5.serializer_v5.write_inventory_to_string(inv)
70
 
 
71
 
        cache_utf8.clear_encoding_cache()
72
 
        read_inv = self.time(xml5.serializer_v5.read_inventory_from_string,
73
 
                             as_str)
74
 
        # TODO: make sure the final inventory is equal as a sanity check
75
 
 
76
 
    def test_read_from_string_cached_kernel_like_inventory(self):
77
 
        cache_utf8.clear_encoding_cache()
78
 
        inv = self.make_kernel_like_inventory()
79
 
        as_str = xml5.serializer_v5.write_inventory_to_string(inv)
80
 
 
81
 
        xml5.serializer_v5.read_inventory_from_string(as_str)
82
 
 
83
 
        read_inv = self.time(xml5.serializer_v5.read_inventory_from_string,
84
 
                             as_str)
85
 
        # TODO: make sure the final inventory is equal as a sanity check