# -*- coding: utf-8 -*- import random import os import time import datetime as dt nfns = 4 # Functions per class nargs = 4 # Arguments per function def generate_dummy_code_pybind11(nclasses=10): decl = "" bindings = "" for cl in range(nclasses): decl += "class cl%03i;\n" % cl decl += "\n" for cl in range(nclasses): decl += "class cl%03i {\n" % cl decl += "public:\n" bindings += ' py::class_(m, "cl%03i")\n' % (cl, cl) for fn in range(nfns): ret = random.randint(0, nclasses - 1) params = [random.randint(0, nclasses - 1) for i in range(nargs)] decl += " cl%03i *fn_%03i(" % (ret, fn) decl += ", ".join("cl%03i *" % p for p in params) decl += ");\n" bindings += ' .def("fn_%03i", &cl%03i::fn_%03i)\n' % (fn, cl, fn) decl += "};\n\n" bindings += " ;\n" result = "#include \n\n" result += "namespace py = pybind11;\n\n" result += decl + "\n" result += "PYBIND11_MODULE(example, m) {\n" result += bindings result += "}" return result def generate_dummy_code_boost(nclasses=10): decl = "" bindings = "" for cl in range(nclasses): decl += "class cl%03i;\n" % cl decl += "\n" for cl in range(nclasses): decl += "class cl%03i {\n" % cl decl += "public:\n" bindings += ' py::class_("cl%03i")\n' % (cl, cl) for fn in range(nfns): ret = random.randint(0, nclasses - 1) params = [random.randint(0, nclasses - 1) for i in range(nargs)] decl += " cl%03i *fn_%03i(" % (ret, fn) decl += ", ".join("cl%03i *" % p for p in params) decl += ");\n" bindings += ( ' .def("fn_%03i", &cl%03i::fn_%03i, py::return_value_policy())\n' % (fn, cl, fn) ) decl += "};\n\n" bindings += " ;\n" result = "#include \n\n" result += "namespace py = boost::python;\n\n" result += decl + "\n" result += "BOOST_PYTHON_MODULE(example) {\n" result += bindings result += "}" return result for codegen in [generate_dummy_code_pybind11, generate_dummy_code_boost]: print("{") for i in range(0, 10): nclasses = 2 ** i with open("test.cpp", "w") as f: f.write(codegen(nclasses)) n1 = dt.datetime.now() os.system( "g++ -Os -shared -rdynamic -undefined dynamic_lookup " "-fvisibility=hidden -std=c++14 test.cpp -I include " "-I /System/Library/Frameworks/Python.framework/Headers -o test.so" ) n2 = dt.datetime.now() elapsed = (n2 - n1).total_seconds() size = os.stat("test.so").st_size print(" {%i, %f, %i}," % (nclasses * nfns, elapsed, size)) print("}") 3f037d7c0ee5dfb2896766d76 (plain)