benchmark for lua binding library
work in progress...
http://satoren.github.io/lua_binding_benchmark/
If library has not supported feature,I wrote the wrap class. It might not be an appropriate use for each library. please to PR if you know a better way.
It is also good with the addition of another library benchmark.
##execute benchmark
git submodule update --init --recursive
on Linux
mkdir build
cd build
cmake ../ -DCMAKE_BUILD_TYPE=Release
make execute_benchmark
on Windows with MSVC++
Download lua source code and extract to root of working tree
mkdir build
cd build
cmake ../ -DCMAKE_BUILD_TYPE=Release -DLOCAL_LUA_DIRECTORY=luadirectoryname
open build/lua_binding_benchmark.sln and build 'execute_benchmark' project
##benchmark code
- global table
for (int i = 0; i < BENCHMARK_LOOP_COUNT; ++i)
{
globaltable["value"] = i;
int v = globaltable["value"];
if (v != i) { throw std::logic_error(""); }
}- table chain
for (int i = 0; i < BENCHMARK_LOOP_COUNT; ++i)
{
table["t1"]["value"] = i;
int v = table["t1"]["value"];
if (v != i) { throw std::logic_error(""); }
}- c function call
// cfunction
int native_function(int arg)
{
executed = true;
return arg;
} -- lua
local times = 5000000
for i=1,times do
local r = native_function(i)
if(r ~= i)then
error('error')
end
end- lua function call
lua_function=function(i)return i;end
std::string teststring = "testtext";
for (int i = 0; i < BENCHMARK_LOOP_COUNT; ++i)
{
std::string result = f(teststring);
if (result != teststring) { throw std::logic_error(""); }
}- C++ object member call
//C++ class
class SetGet
{
public:
SetGet() :_mem(0.0) {}
void set(double i)
{
_mem = i;
}
double get()const
{
return _mem;
}
private:
double _mem;
}; -- lua
local times = 5000000
for i=1,times do
getset:set(i)
if(getset:get() ~= i)then
error('error')
end
end- std random(C++11) bind
-- lua
local times = BENCHMARK_LOOP_COUNT
local rengine=random.mt19937.new(0)
local udist=random.uniform_int_distribution.new(1,6)
if(rengine() ~= 2357136044) then error('mt19937?') end
if(pcall(udist.__call,udist,udist) ~= false)then error('no error checked') end -- argument miss. error check
if(pcall(udist.__call,rengine,rengine) ~= false)then error('no error checked') end
for i=1,times do
local value = udist:__call(rengine)--Actually below code, but __call metamethod has cost. for fair with "gen" function version.
-- local value = udist(rengine)
if( value < 1 or value > 6)then\
error('error')
end
endOr
local times = BENCHMARK_LOOP_COUNT
local rengine=random.mt19937(0)
local udist=random.uniform_int_distribution(1,6)
if(rengine:gen() ~= 2357136044) then error('mt19937?') end
if(pcall(udist.gen,udist,udist) ~= false)then error('no error checked') end\n"//ouch! argument miss. error ch
if(pcall(udist.gen,rengine,rengine) ~= false)then error('no error checked') end
for i=1,times do
local value = udist:gen(rengine)
if( value < 1 or value > 6)then
error('error')
end
end