mirror of https://github.com/CGAL/cgal
add a benchmark for Polyline_simplification_2
Using the tool `compare.py` from [Google Benchmark Tools][1]... [1]: https://github.com/google/benchmark/blob/main/docs/tools.md ...given that: - `benchmark_simplify-AFTER` is the file `benchmark_simplify.cpp` compiled from this branch, and flags `-msse3 -DNDEBUG -O3` with gcc version 14.2.1, - `benchmark_simplify-BEFORE` is the same file compiled from the branch `master`, and same flags and compiler. the command line was: ```shell compare.py benchmarks build/Release/benchmark/Polyline_simplification_2/benchmark_simplify-BEFORE build/Release/benchmark/Polyline_simplification_2/benchmark_simplify-AFTER Data/data/wkt/norway-MP.wkt --benchmark_repetitions=20 --benchmark_counters_tabular=true --benchmark_time_unit=s ``` The following results show that there is a speedup of about 15% (mean) or 18% (median) ``` RUNNING: build/Release/benchmark/Polyline_simplification_2/benchmark_simplify-BEFORE Data/data/wkt/norway-MP.wkt --benchmark_repetitions=20 --benchmark_counters_tabular=true --benchmark_time_unit=s --benchmark_out=/tmp/tmpvxyq_i24 2025-02-06T17:23:08+01:00 Running Data/data/wkt/norway-MP.wkt Run on (16 X 800 MHz CPU s) CPU Caches: L1 Data 48 KiB (x8) L1 Instruction 32 KiB (x8) L2 Unified 1280 KiB (x8) L3 Unified 24576 KiB (x1) Load Average: 1.47, 2.07, 1.65 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Benchmark Time CPU Iterations #points #polygons #polylines nb of constraints nb of sub-constraints nb of vertices ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- simplify file Data/data/wkt/norway-MP.wkt 0.067 s 0.067 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.066 s 0.066 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.065 s 0.065 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.073 s 0.072 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.066 s 0.066 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.064 s 0.064 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.067 s 0.066 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.071 s 0.071 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.064 s 0.064 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.064 s 0.064 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.074 s 0.074 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.066 s 0.066 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.075 s 0.074 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.074 s 0.074 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.076 s 0.076 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.078 s 0.078 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.074 s 0.074 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.067 s 0.067 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.064 s 0.064 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.069 s 0.069 s 12 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt_mean 0.069 s 0.069 s 20 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt_median 0.067 s 0.067 s 20 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt_stddev 0.005 s 0.005 s 20 0 0 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt_cv 6.73 % 6.68 % 20 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% RUNNING: build/Release/benchmark/Polyline_simplification_2/benchmark_simplify-AFTER Data/data/wkt/norway-MP.wkt --benchmark_repetitions=20 --benchmark_counters_tabular=true --benchmark_time_unit=s --benchmark_out=/tmp/tmp59ui0dsw 2025-02-06T17:29:26+01:00 Running Data/data/wkt/norway-MP.wkt Run on (16 X 800.961 MHz CPU s) CPU Caches: L1 Data 48 KiB (x8) L1 Instruction 32 KiB (x8) L2 Unified 1280 KiB (x8) L3 Unified 24576 KiB (x1) Load Average: 1.61, 1.94, 1.73 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Benchmark Time CPU Iterations #points #polygons #polylines nb of constraints nb of sub-constraints nb of vertices ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- simplify file Data/data/wkt/norway-MP.wkt 0.054 s 0.054 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.057 s 0.057 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.059 s 0.059 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.065 s 0.065 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.058 s 0.058 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.056 s 0.056 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.053 s 0.053 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.061 s 0.061 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.058 s 0.058 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.052 s 0.052 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.054 s 0.054 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.055 s 0.054 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.054 s 0.054 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.055 s 0.054 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.054 s 0.054 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.059 s 0.059 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.057 s 0.057 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.058 s 0.057 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.055 s 0.055 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt 0.059 s 0.059 s 13 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt_mean 0.057 s 0.057 s 20 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt_median 0.057 s 0.056 s 20 0 848 0 849 40.568k 40.565k simplify file Data/data/wkt/norway-MP.wkt_stddev 0.003 s 0.003 s 20 0 0 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt_cv 5.37 % 5.32 % 20 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% Comparing build/Release/benchmark/Polyline_simplification_2/benchmark_simplify-BEFORE to build/Release/benchmark/Polyline_simplification_2/benchmark_simplify-AFTER Benchmark Time CPU Time Old Time New CPU Old CPU New ----------------------------------------------------------------------------------------------------------------------------------------------- simplify file Data/data/wkt/norway-MP.wkt -0.1941 -0.1942 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.1269 -0.1272 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.0900 -0.0918 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.1049 -0.1065 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.1204 -0.1206 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.1279 -0.1282 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.1962 -0.1961 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.1370 -0.1377 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.0951 -0.0962 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.1851 -0.1852 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.2720 -0.2716 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.1702 -0.1717 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.2700 -0.2703 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.2644 -0.2634 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.2861 -0.2856 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.2492 -0.2488 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.2310 -0.2301 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.1382 -0.1389 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.1401 -0.1406 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt -0.1464 -0.1467 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt_pvalue 0.0000 0.0000 U Test, Repetitions: 20 vs 20 simplify file Data/data/wkt/norway-MP.wkt_mean -0.1804 -0.1806 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt_median -0.1547 -0.1549 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt_stddev -0.3458 -0.3479 0 0 0 0 simplify file Data/data/wkt/norway-MP.wkt_cv -0.2018 -0.2041 0 0 0 0 OVERALL_GEOMEAN -0.1797 -0.1800 0 0 0 0 ```
This commit is contained in:
Laurent Rineau
parent
765744e8b2
commit
bc44c91536
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@ -16,7 +16,7 @@ include_directories(BEFORE "/usr/include/libxml2/")
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#add_compile_definitions("-pg")
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#SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pg")
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# add_compile_definitions("-g")
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return()
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# OpenMesh
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find_package(OpenMesh REQUIRED)
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include(CGAL_OpenMesh_support)
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@ -1,6 +1,8 @@
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cmake_minimum_required(VERSION 3.12...3.29)
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project(LCC_performance_3)
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return()
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if(NOT POLICY CMP0070 AND POLICY CMP0053)
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# Only set CMP0053 to OLD with CMake<3.10, otherwise there is a warning.
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cmake_policy(SET CMP0053 OLD)
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@ -0,0 +1,11 @@
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cmake_minimum_required(VERSION 3.12...3.29)
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project(Polyline_simplification_2_Benchmarks)
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# Add Google Benchmark
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find_package(benchmark REQUIRED)
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# Add CGAL
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find_package(CGAL REQUIRED)
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add_executable(benchmark_simplify benchmark_simplify.cpp)
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target_link_libraries(benchmark_simplify PRIVATE benchmark::benchmark CGAL::CGAL CGAL::Data)
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@ -0,0 +1,98 @@
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#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
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#include <CGAL/Polygon_2.h>
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#include <CGAL/Polygon_with_holes_2.h>
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#include <CGAL/Constrained_Delaunay_triangulation_2.h>
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#include <CGAL/Constrained_triangulation_plus_2.h>
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#include <CGAL/Polyline_simplification_2/simplify.h>
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#include <CGAL/Polyline_simplification_2/Squared_distance_cost.h>
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#include <CGAL/IO/WKT.h>
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#include <benchmark/benchmark.h>
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#include <iostream>
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#include <fstream>
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#include <vector>
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#include <deque>
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namespace PS = CGAL::Polyline_simplification_2;
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using K = CGAL::Exact_predicates_inexact_constructions_kernel;
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using Polygon_2 = CGAL::Polygon_2<K>;
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using Polygon_with_holes_2 = CGAL::Polygon_with_holes_2<K>;
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using Vb = PS::Vertex_base_2<K>;
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using Fb = CGAL::Constrained_triangulation_face_base_2<K>;
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using TDS = CGAL::Triangulation_data_structure_2<Vb, Fb>;
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using CDT = CGAL::Constrained_Delaunay_triangulation_2<K, TDS, CGAL::Exact_predicates_tag>;
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using CT = CGAL::Constrained_triangulation_plus_2<CDT>;
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using Stop = PS::Stop_below_count_ratio_threshold;
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using Cost = PS::Squared_distance_cost;
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static void BM_Simplify(benchmark::State& state, std::string filename) {
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using Point_2 = K::Point_2;
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using MultiPoint = std::vector<Point_2>;
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using LineString = std::vector<Point_2>;
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using MultiLineString = std::deque<LineString>;
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using Polygon_2 = CGAL::Polygon_2<K>;
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using Polygon_with_holes_2 = CGAL::Polygon_with_holes_2<K>;
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using MultiPolygon = std::deque<Polygon_with_holes_2>;
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std::ifstream ifs(filename);
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MultiPoint points;
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MultiLineString polylines;
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MultiPolygon polygons;
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if(!CGAL::IO::read_WKT(ifs, points, polylines, polygons) && false) {
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state.SkipWithError("Cannot read file " + filename);
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return;
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}
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state.counters["#points"] = points.size();
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state.counters["#polylines"] = polylines.size();
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state.counters["#polygons"] = polygons.size();
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CT ct;
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for(const auto& point : points) {
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ct.insert(point);
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}
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for(const auto& polyline : polylines) {
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ct.insert_constraint(polyline);
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}
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for(const auto& polygon_with_holes : polygons) {
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const Polygon_2& outer_polygon = polygon_with_holes.outer_boundary();
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ct.insert_constraint(outer_polygon);
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for(Polygon_with_holes_2::Hole_const_iterator it = polygon_with_holes.holes_begin();
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it != polygon_with_holes.holes_end(); ++it)
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{
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const Polygon_2& hole = *it;
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ct.insert_constraint(hole);
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}
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}
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state.counters["nb of constraints"] = ct.number_of_constraints();
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state.counters["nb of vertices"] = ct.number_of_vertices();
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state.counters["nb of sub-constraints"] = ct.number_of_subconstraints();
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for([[maybe_unused]] auto _ : state) {
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state.PauseTiming();
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CT ct_copy = ct; // Copy the object `ct` in the loop
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state.ResumeTiming();
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PS::simplify(ct_copy, Cost(), Stop(0.5));
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}
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}
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int main(int argc, char** argv) {
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std::string filename = CGAL::data_file_path("wkt/norway-MP.wkt");
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if(argc > 1) {
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std::string_view arg1{argv[1]};
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if(arg1.size() < 2 || arg1[0] != '-' || arg1[1] != '-') {
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--argc;
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++argv;
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filename = arg1;
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}
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}
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benchmark::RegisterBenchmark("simplify file " + filename, BM_Simplify, filename);
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benchmark::Initialize(&argc, argv);
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benchmark::RunSpecifiedBenchmarks();
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benchmark::Shutdown();
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}
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