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0adb8a69b1
relating to previous work https://github.com/tfussell/xlnt/issues/422 Results are matching what was observed at the time ^^ was being worked on std::from_chars is included as the target to beat, but since only MSVC has it for floating point it's not hugely useful yet uniform real distribution is probably a horrible choice, and it might be good to randomise the number of sf in each string also (currently the y all end up at max length) Run on (4 X 3500 MHz CPU s) CPU Caches: L1 Data 32K (x4) L1 Instruction 32K (x4) L2 Unified 262K (x4) L3 Unified 6291K (x1) ---------------------------------------------------------------------------------------------------------- Benchmark Time CPU Iterations ---------------------------------------------------------------------------------------------------------- RandFloats/double_from_string_sstream 804 ns 820 ns 896000 RandFloats/double_from_string_strtod 163 ns 162 ns 5973333 RandFloats/double_from_string_strtod_fixed 175 ns 172 ns 5352107 RandFloats/double_from_string_strtod_fixed_const_ref 150 ns 152 ns 5352107 RandFloats/double_from_string_std_from_chars 87.1 ns 88.3 ns 9557333 RandFloatsComma/double_from_string_strtod_fixed_comma_ref 172 ns 173 ns 5146257 RandFloatsComma/double_from_string_strtod_fixed_comma_const_ref 180 ns 175 ns 5352107
48 lines
1.6 KiB
CMake
48 lines
1.6 KiB
CMake
cmake_minimum_required(VERSION 3.1)
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project(xlnt.benchmarks)
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# Require C++11 compiler
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set(CMAKE_CXX_STANDARD 11)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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if(NOT COMBINED_PROJECT)
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# Include xlnt library
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add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../source ${CMAKE_CURRENT_BINARY_DIR}/source)
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endif()
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if(STATIC_CRT)
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include(${CMAKE_CURRENT_SOURCE_DIR}/../cmake/ucm.cmake)
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ucm_set_runtime(STATIC)
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endif()
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set(XLNT_BENCHMARK_DATA_DIR ${CMAKE_CURRENT_SOURCE_DIR}/data)
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file(GLOB BENCHMARK_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
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foreach(BENCHMARK_SOURCE IN ITEMS ${BENCHMARK_SOURCES})
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# Convert <name>.cpp to benchmark-<name>
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get_filename_component(BENCHMARK_NAME ${BENCHMARK_SOURCE} NAME_WE)
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set(BENCHMARK_EXECUTABLE benchmark-${BENCHMARK_NAME})
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add_executable(${BENCHMARK_EXECUTABLE} ${BENCHMARK_SOURCE})
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target_link_libraries(${BENCHMARK_EXECUTABLE} PRIVATE xlnt)
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# Need to use some test helpers
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target_include_directories(${BENCHMARK_EXECUTABLE}
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PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/../tests)
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target_compile_definitions(${BENCHMARK_EXECUTABLE}
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PRIVATE XLNT_BENCHMARK_DATA_DIR=${XLNT_BENCHMARK_DATA_DIR})
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if(MSVC AND NOT STATIC)
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# Copy xlnt DLL into benchmarks directory
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add_custom_command(TARGET ${BENCHMARK_EXECUTABLE} POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E copy_if_different
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$<TARGET_FILE:xlnt>
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$<TARGET_FILE_DIR:${BENCHMARK_EXECUTABLE}>)
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endif()
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endforeach()
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option(XLNT_MICROBENCH_ENABLED "Enable small benchmarks typically used for development" OFF)
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if (XLNT_MICROBENCH_ENABLED)
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add_subdirectory(microbenchmarks)
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endif() |