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authorAndreas Sandberg <andreas.sandberg@arm.com>2017-02-27 13:17:51 +0000
committerAndreas Sandberg <andreas.sandberg@arm.com>2017-05-02 12:37:32 +0000
commitc79706ff4ce591df2151db5504d3c224f3c9965f (patch)
treeb56cd2bfe704a40575a71075e78194a4c516c98d /ext/pybind11/docs/benchmark.py
parent359cb08623324b62d7c34973ae54d5bc7f23f9fd (diff)
downloadgem5-c79706ff4ce591df2151db5504d3c224f3c9965f.tar.xz
ext: Add pybind rev f4b81b3
Change-Id: I52e4fc9ebf2f59da57d8cf8f3e37cc79598c2f5f Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Andreas Hansson <andreas.hansson@arm.com> Reviewed-by: Curtis Dunham <curtis.dunham@arm.com> Reviewed-on: https://gem5-review.googlesource.com/2229 Reviewed-by: Tony Gutierrez <anthony.gutierrez@amd.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Pierre-Yves PĂ©neau <pierre-yves.peneau@lirmm.fr>
Diffstat (limited to 'ext/pybind11/docs/benchmark.py')
-rw-r--r--ext/pybind11/docs/benchmark.py90
1 files changed, 90 insertions, 0 deletions
diff --git a/ext/pybind11/docs/benchmark.py b/ext/pybind11/docs/benchmark.py
new file mode 100644
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+++ b/ext/pybind11/docs/benchmark.py
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+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_<cl%03i>(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 <pybind11/pybind11.h>\n\n"
+ result += "namespace py = pybind11;\n\n"
+ result += decl + '\n'
+ result += "PYBIND11_PLUGIN(example) {\n"
+ result += " py::module m(\"example\");"
+ result += bindings
+ result += " return m.ptr();"
+ 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>("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<py::manage_new_object>())\n' % \
+ (fn, cl, fn)
+ decl += "};\n\n"
+ bindings += ' ;\n'
+
+ result = "#include <boost/python.hpp>\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 ("}")