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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [libstdc++-v3/] [testsuite/] [util/] [performance/] [priority_queue/] [timing/] [join_test.hpp] - Rev 516
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// -*- C++ -*- // Copyright (C) 2005, 2006, 2009 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 3, 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 COPYING3. If not see // <http://www.gnu.org/licenses/>. // 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 __gnu_pbds { 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 __gnu_pbds::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 __gnu_pbds::test::detail::double_push_functor; using __gnu_pbds::test::detail::double_push_join_functor; typedef __gnu_pbds::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 __gnu_pbds #endif