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1 | // -*- C++ -*- |
2 | ||
99dee823 | 3 | // Copyright (C) 2005-2021 Free Software Foundation, Inc. |
4569a895 AT |
4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the terms | |
7 | // of the GNU General Public License as published by the Free Software | |
748086b7 | 8 | // Foundation; either version 3, or (at your option) any later |
4569a895 AT |
9 | // version. |
10 | ||
11 | // This library is distributed in the hope that it will be useful, but | |
12 | // WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | // General Public License for more details. | |
15 | ||
16 | // You should have received a copy of the GNU General Public License | |
748086b7 JJ |
17 | // along with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
4569a895 AT |
20 | |
21 | // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. | |
22 | ||
23 | // Permission to use, copy, modify, sell, and distribute this software | |
24 | // is hereby granted without fee, provided that the above copyright | |
25 | // notice appears in all copies, and that both that copyright notice | |
26 | // and this permission notice appear in supporting documentation. None | |
27 | // of the above authors, nor IBM Haifa Research Laboratories, make any | |
28 | // representation about the suitability of this software for any | |
29 | // purpose. It is provided "as is" without express or implied | |
30 | // warranty. | |
31 | ||
32 | /** | |
33 | * @file join_test.hpp | |
34 | * Contains a join performance test. | |
35 | */ | |
36 | ||
37 | #ifndef PB_DS_JOIN_TEST_HPP | |
38 | #define PB_DS_JOIN_TEST_HPP | |
39 | ||
40 | #include <performance/time/timing_test_base.hpp> | |
41 | #include <ext/pb_ds/detail/type_utils.hpp> | |
42 | #include <performance/io/xml_formatter.hpp> | |
43 | #include <common_type/priority_queue/string_form.hpp> | |
44 | #include <iterator> | |
45 | ||
5e11f978 | 46 | namespace __gnu_pbds |
4569a895 AT |
47 | { |
48 | namespace test | |
49 | { | |
50 | namespace detail | |
51 | { | |
52 | template<typename It, typename Cntnr> | |
53 | class double_push_functor | |
54 | { | |
55 | const It _M_begin; | |
56 | const It _M_end; | |
57 | ||
58 | public: | |
59 | double_push_functor(It b, It e) : _M_begin(b), _M_end(e) { } | |
60 | ||
61 | void | |
62 | operator()(std::size_t resolution) | |
63 | { | |
64 | typedef typename Cntnr::const_reference const_reference; | |
65 | for (std::size_t n = 0; n < resolution; ++n) | |
66 | { | |
67 | Cntnr c0; | |
68 | Cntnr c1; | |
69 | for (It it = _M_begin; it != _M_end; ++it) | |
70 | { | |
71 | c0.push(const_reference(it->first)); | |
72 | c1.push(const_reference(it->first)); | |
73 | } | |
74 | } | |
75 | } | |
76 | }; | |
77 | ||
78 | template<typename It, typename Cntnr> | |
79 | class double_push_join_functor | |
80 | { | |
81 | const It _M_begin; | |
82 | const It _M_end; | |
83 | ||
84 | public: | |
85 | double_push_join_functor(It b, It e) : _M_begin(b), _M_end(e) { } | |
86 | ||
87 | void | |
88 | operator()(std::size_t resolution) | |
89 | { | |
90 | typedef typename Cntnr::const_reference const_reference; | |
91 | for (std::size_t n = 0; n < resolution; ++n) | |
92 | { | |
93 | Cntnr c0; | |
94 | Cntnr c1; | |
95 | for (It it = _M_begin; it != _M_end; ++it) | |
96 | { | |
97 | c0.push(const_reference(it->first)); | |
98 | c1.push(const_reference(it->first)); | |
99 | } | |
100 | c0.join(c1); | |
101 | } | |
102 | } | |
103 | }; | |
104 | } // namespace detail | |
105 | ||
106 | template<typename It> | |
5e11f978 | 107 | class join_test : private __gnu_pbds::test::detail::timing_test_base |
4569a895 | 108 | { |
4569a895 AT |
109 | public: |
110 | join_test(It ins_b, size_t ins_vn, size_t ins_vs, size_t ins_vm) | |
3441f106 | 111 | : m_ins_b(ins_b), m_ins_vn(ins_vn), m_ins_vs(ins_vs), m_ins_vm(ins_vm) |
4569a895 AT |
112 | { } |
113 | ||
114 | template<typename Cntnr> | |
115 | void | |
3441f106 | 116 | operator()(Cntnr) |
4569a895 | 117 | { |
5e11f978 BK |
118 | using __gnu_pbds::test::detail::double_push_functor; |
119 | using __gnu_pbds::test::detail::double_push_join_functor; | |
120 | typedef __gnu_pbds::test::detail::timing_test_base base_type; | |
382a1351 BK |
121 | typedef double_push_functor<It, Cntnr> psh_fnct; |
122 | typedef double_push_join_functor<It, Cntnr> psh_jn_fnct; | |
123 | ||
3441f106 | 124 | typedef xml_result_set_performance_formatter formatter_type; |
f92ab29f | 125 | formatter_type res(string_form<Cntnr>::name(), |
3441f106 | 126 | string_form<Cntnr>::desc()); |
f92ab29f | 127 | |
4569a895 AT |
128 | for (size_t n = 0; m_ins_vn + n* m_ins_vs < m_ins_vm; ++n) |
129 | { | |
130 | const size_t v = m_ins_vn + n * m_ins_vs; | |
131 | It b = m_ins_b; | |
132 | It e = m_ins_b; | |
133 | std::advance(e, v); | |
134 | ||
382a1351 BK |
135 | psh_fnct double_push_fn(b, e); |
136 | const double dbl_psh_res = base_type::operator()(double_push_fn); | |
137 | psh_jn_fnct dbl_psh_jn_fn(b, e); | |
138 | const double dbl_psh_jn_res = base_type::operator()(dbl_psh_jn_fn); | |
139 | const double min_res = double(timing_test_base::min_time_res()); | |
140 | const double effective_delta = std::max(dbl_psh_jn_res - dbl_psh_res, min_res); | |
4569a895 AT |
141 | res.add_res(v, effective_delta / v); |
142 | } | |
143 | } | |
144 | ||
145 | private: | |
146 | join_test(const join_test&); | |
147 | ||
148 | template<typename Cntnr> | |
149 | void | |
3441f106 | 150 | join(Cntnr, It b, It e) |
4569a895 AT |
151 | { |
152 | Cntnr cntnr; | |
153 | typedef typename Cntnr::const_reference const_reference; | |
154 | for (It it = b; it != e; ++it) | |
155 | cntnr.join(const_reference(*it)); | |
156 | } | |
3441f106 BK |
157 | |
158 | const It m_ins_b; | |
159 | const size_t m_ins_vn; | |
160 | const size_t m_ins_vs; | |
161 | const size_t m_ins_vm; | |
4569a895 AT |
162 | }; |
163 | } // namespace test | |
5e11f978 | 164 | } // namespace __gnu_pbds |
4569a895 | 165 | |
f92ab29f | 166 | #endif |
4569a895 | 167 |