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Diffstat (limited to 'src/boost/libs/geometry/index/example/benchmark_insert.cpp')
| -rw-r--r-- | src/boost/libs/geometry/index/example/benchmark_insert.cpp | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/src/boost/libs/geometry/index/example/benchmark_insert.cpp b/src/boost/libs/geometry/index/example/benchmark_insert.cpp new file mode 100644 index 00000000..4fe82e91 --- /dev/null +++ b/src/boost/libs/geometry/index/example/benchmark_insert.cpp @@ -0,0 +1,196 @@ +// Boost.Geometry Index +// Additional tests + +// Copyright (c) 2011-2015 Adam Wulkiewicz, Lodz, Poland. + +// Use, modification and distribution is subject to the Boost Software License, +// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) + +#include <iostream> +#include <vector> +#include <algorithm> + +#include <boost/chrono.hpp> +#include <boost/foreach.hpp> +#include <boost/random.hpp> + +#include <boost/geometry.hpp> +#include <boost/geometry/index/rtree.hpp> +#include <boost/geometry/geometries/geometries.hpp> + +#include <boost/geometry/index/detail/rtree/utilities/are_boxes_ok.hpp> +#include <boost/geometry/index/detail/rtree/utilities/are_counts_ok.hpp> +#include <boost/geometry/index/detail/rtree/utilities/are_levels_ok.hpp> + +namespace bg = boost::geometry; +namespace bgi = bg::index; + +typedef bg::model::point<double, 2, bg::cs::cartesian> P; +typedef bg::model::box<P> B; +typedef bg::model::segment<P> S; +typedef P V; +//typedef B V; +//typedef S V; + +template <typename V> +struct generate_value {}; + +template <> +struct generate_value<B> +{ + static inline B apply(float x, float y) { return B(P(x - 0.5f, y - 0.5f), P(x + 0.5f, y + 0.5f)); } +}; + +template <> +struct generate_value<S> +{ + static inline S apply(float x, float y) { return S(P(x - 0.5f, y - 0.5f), P(x + 0.5f, y + 0.5f)); } +}; + +template <> +struct generate_value<P> +{ + static inline P apply(float x, float y) { return P(x, y); } +}; + +template <typename RT> +void test_queries(RT const& t, std::vector< std::pair<float, float> > const& coords, size_t queries_count) +{ + typedef boost::chrono::thread_clock clock_t; + typedef boost::chrono::duration<float> dur_t; + + std::vector<V> result; + result.reserve(100); + + clock_t::time_point start = clock_t::now(); + size_t temp = 0; + for (size_t i = 0 ; i < queries_count ; ++i ) + { + float x = coords[i].first; + float y = coords[i].second; + result.clear(); + t.query(bgi::intersects(B(P(x - 10, y - 10), P(x + 10, y + 10))), std::back_inserter(result)); + temp += result.size(); + } + dur_t time = clock_t::now() - start; + std::cout << time.count() << " " << temp << '\n'; +} + +//#define BOOST_GEOMETRY_INDEX_BENCHMARK_DEBUG + +int main() +{ + //typedef bgi::rtree<V, bgi::linear<4, 2> > RT; + //typedef bgi::rtree<V, bgi::linear<16, 4> > RT; + //typedef bgi::rtree<V, bgi::quadratic<4, 2> > RT; + typedef bgi::rtree<V, bgi::rstar<8, 2> > RT; + + typedef boost::chrono::thread_clock clock_t; + typedef boost::chrono::duration<float> dur_t; + +#ifndef BOOST_GEOMETRY_INDEX_BENCHMARK_DEBUG + size_t values_count = 1000000; + size_t queries_count = 100000; + size_t nearest_queries_count = 20000; + unsigned neighbours_count = 10; + size_t max_range_inserts = 10; +#else + size_t values_count = 10000; + size_t queries_count = 1000; + size_t nearest_queries_count = 100; + unsigned neighbours_count = 10; + size_t max_range_inserts = 10; +#endif + + float max_val = static_cast<float>(values_count / 2); + std::vector< std::pair<float, float> > coords; + std::vector<V> values; + + //randomize values + { + boost::mt19937 rng; + //rng.seed(static_cast<unsigned int>(std::time(0))); + boost::uniform_real<float> range(-max_val, max_val); + boost::variate_generator<boost::mt19937&, boost::uniform_real<float> > rnd(rng, range); + + coords.reserve(values_count); + + std::cout << "randomizing data\n"; + for ( size_t i = 0 ; i < values_count ; ++i ) + { + float x = rnd(); + float y = rnd(); + coords.push_back(std::make_pair(x, y)); + values.push_back(generate_value<V>::apply(x, y)); + } + std::cout << "randomized\n"; + } + + for (;;) + { + // packing test + { + clock_t::time_point start = clock_t::now(); + + RT t(values.begin(), values.end()); + + BOOST_ASSERT(bgi::detail::rtree::utilities::are_boxes_ok(t)); + BOOST_ASSERT(bgi::detail::rtree::utilities::are_counts_ok(t)); + BOOST_ASSERT(bgi::detail::rtree::utilities::are_levels_ok(t)); + + dur_t time = clock_t::now() - start; + std::cout << "pack(" << values_count << ") - " << time.count() << ", "; + + test_queries(t, coords, queries_count); + } + + { + size_t n_per_max = values_count / max_range_inserts; + + for ( size_t j = 0 ; j < max_range_inserts ; ++j ) + { + clock_t::time_point start = clock_t::now(); + + RT t; + + // perform j range-inserts + for ( size_t i = 0 ; i < j ; ++i ) + { + t.insert(values.begin() + n_per_max * i, + values.begin() + (std::min)(n_per_max * (i + 1), values_count)); + } + + if ( !t.empty() ) + { + BOOST_ASSERT(bgi::detail::rtree::utilities::are_boxes_ok(t)); + BOOST_ASSERT(bgi::detail::rtree::utilities::are_counts_ok(t)); + BOOST_ASSERT(bgi::detail::rtree::utilities::are_levels_ok(t)); + } + + // perform n-n/max_inserts*j inserts + size_t inserted_count = (std::min)(n_per_max*j, values_count); + for ( size_t i = inserted_count ; i < values_count ; ++i ) + { + t.insert(values[i]); + } + + if ( !t.empty() ) + { + BOOST_ASSERT(bgi::detail::rtree::utilities::are_boxes_ok(t)); + BOOST_ASSERT(bgi::detail::rtree::utilities::are_counts_ok(t)); + BOOST_ASSERT(bgi::detail::rtree::utilities::are_levels_ok(t)); + } + + dur_t time = clock_t::now() - start; + std::cout << j << "*insert(N/" << max_range_inserts << ")+insert(" << (values_count - inserted_count) << ") - " << time.count() << ", "; + + test_queries(t, coords, queries_count); + } + } + + std::cout << "------------------------------------------------\n"; + } + + return 0; +} |