| // -*- C++ -*- |
| |
| // Copyright (C) 2005, 2006 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library 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, or (at your option) any later |
| // version. |
| |
| // This library 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 library; see the file COPYING. If not, write to |
| // the Free Software Foundation, 59 Temple Place - Suite 330, Boston, |
| // MA 02111-1307, USA. |
| |
| // As a special exception, you may use this file as part of a free |
| // software library without restriction. Specifically, if other files |
| // instantiate templates or use macros or inline functions from this |
| // file, or you compile this file and link it with other files to |
| // produce an executable, this file does not by itself cause the |
| // resulting executable to be covered by the GNU General Public |
| // License. This exception does not however invalidate any other |
| // reasons why the executable file might be covered by the GNU General |
| // Public License. |
| |
| // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. |
| |
| // Permission to use, copy, modify, sell, and distribute this software |
| // is hereby granted without fee, provided that the above copyright |
| // notice appears in all copies, and that both that copyright notice |
| // and this permission notice appear in supporting documentation. None |
| // of the above authors, nor IBM Haifa Research Laboratories, make any |
| // representation about the suitability of this software for any |
| // purpose. It is provided "as is" without express or implied |
| // warranty. |
| |
| /** |
| * @file join_test.hpp |
| * Contains a join performance test. |
| */ |
| |
| #ifndef PB_DS_JOIN_TEST_HPP |
| #define PB_DS_JOIN_TEST_HPP |
| |
| #include <performance/time/timing_test_base.hpp> |
| #include <ext/pb_ds/detail/type_utils.hpp> |
| #include <performance/io/xml_formatter.hpp> |
| #include <common_type/priority_queue/string_form.hpp> |
| #include <iterator> |
| |
| namespace pb_ds |
| { |
| namespace test |
| { |
| namespace detail |
| { |
| template<typename It, typename Cntnr> |
| class double_push_functor |
| { |
| const It _M_begin; |
| const It _M_end; |
| |
| public: |
| double_push_functor(It b, It e) : _M_begin(b), _M_end(e) { } |
| |
| void |
| operator()(std::size_t resolution) |
| { |
| typedef typename Cntnr::const_reference const_reference; |
| for (std::size_t n = 0; n < resolution; ++n) |
| { |
| Cntnr c0; |
| Cntnr c1; |
| for (It it = _M_begin; it != _M_end; ++it) |
| { |
| c0.push(const_reference(it->first)); |
| c1.push(const_reference(it->first)); |
| } |
| } |
| } |
| }; |
| |
| template<typename It, typename Cntnr> |
| class double_push_join_functor |
| { |
| const It _M_begin; |
| const It _M_end; |
| |
| public: |
| double_push_join_functor(It b, It e) : _M_begin(b), _M_end(e) { } |
| |
| void |
| operator()(std::size_t resolution) |
| { |
| typedef typename Cntnr::const_reference const_reference; |
| for (std::size_t n = 0; n < resolution; ++n) |
| { |
| Cntnr c0; |
| Cntnr c1; |
| for (It it = _M_begin; it != _M_end; ++it) |
| { |
| c0.push(const_reference(it->first)); |
| c1.push(const_reference(it->first)); |
| } |
| c0.join(c1); |
| } |
| } |
| }; |
| } // namespace detail |
| |
| template<typename It> |
| class join_test : private pb_ds::test::detail::timing_test_base |
| { |
| public: |
| join_test(It ins_b, size_t ins_vn, size_t ins_vs, size_t ins_vm) |
| : m_ins_b(ins_b), m_ins_vn(ins_vn), m_ins_vs(ins_vs), m_ins_vm(ins_vm) |
| { } |
| |
| template<typename Cntnr> |
| void |
| operator()(Cntnr) |
| { |
| using pb_ds::test::detail::double_push_functor; |
| using pb_ds::test::detail::double_push_join_functor; |
| typedef pb_ds::test::detail::timing_test_base base_type; |
| typedef double_push_functor<It, Cntnr> psh_fnct; |
| typedef double_push_join_functor<It, Cntnr> psh_jn_fnct; |
| |
| typedef xml_result_set_performance_formatter formatter_type; |
| formatter_type res(string_form<Cntnr>::name(), |
| string_form<Cntnr>::desc()); |
| |
| for (size_t n = 0; m_ins_vn + n* m_ins_vs < m_ins_vm; ++n) |
| { |
| const size_t v = m_ins_vn + n * m_ins_vs; |
| It b = m_ins_b; |
| It e = m_ins_b; |
| std::advance(e, v); |
| |
| psh_fnct double_push_fn(b, e); |
| const double dbl_psh_res = base_type::operator()(double_push_fn); |
| psh_jn_fnct dbl_psh_jn_fn(b, e); |
| const double dbl_psh_jn_res = base_type::operator()(dbl_psh_jn_fn); |
| const double min_res = double(timing_test_base::min_time_res()); |
| const double effective_delta = std::max(dbl_psh_jn_res - dbl_psh_res, min_res); |
| res.add_res(v, effective_delta / v); |
| } |
| } |
| |
| private: |
| join_test(const join_test&); |
| |
| template<typename Cntnr> |
| void |
| join(Cntnr, It b, It e) |
| { |
| Cntnr cntnr; |
| typedef typename Cntnr::const_reference const_reference; |
| for (It it = b; it != e; ++it) |
| cntnr.join(const_reference(*it)); |
| } |
| |
| const It m_ins_b; |
| const size_t m_ins_vn; |
| const size_t m_ins_vs; |
| const size_t m_ins_vm; |
| }; |
| } // namespace test |
| } // namespace pb_ds |
| |
| #endif |
| |