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Commit 4b638cbf authored by John Zhang's avatar John Zhang
Browse files

add C baseline measurement

parent 9f597975
......@@ -10,12 +10,12 @@ import ctypes
from rpython.translator.interactive import Translation
from rpython.config.translationoption import set_opt_level
from util import libmu_path
from util import libmu_path, libext
CPYTHON = os.environ.get('CPYTHON', 'python')
PYPY = os.environ.get('PYPY', 'pypy')
RPYTHON = os.environ.get('RPYTHON', None)
CC = os.environ.get('CC', 'clang')
def run(cmd):
# print ' '.join(cmd)
......@@ -31,7 +31,7 @@ def perf_fibonacci():
tmpdir = py.path.local(mkdtemp())
print tmpdir
file_str = \
py_code_str = \
"""
from time import time
from rpython.rlib import jit
......@@ -76,9 +76,35 @@ def target(*args):
return rpy_entry, [int]
""" % {'fprec': 10}
c_code_str = \
"""
#include <stdint.h>
uint64_t fib(uint64_t n) {
uint64_t k, fib_k, fib_k_2, fib_k_1;
if(n <= 1) return n;
k = 2;
fib_k_2 = 0;
fib_k_1 = 1;
while(k < n) {
fib_k = fib_k_2 + fib_k_1;
fib_k_2 = fib_k_1;
fib_k_1 = fib_k;
k += 1;
}
return fib_k_2 + fib_k_1;
}
"""
py_file = tmpdir.join('fibonacci.py')
with py_file.open('w') as fp:
fp.write(file_str)
fp.write(py_code_str)
c_file = tmpdir.join('fibonacci.c')
with c_file.open('w') as fp:
fp.write(c_code_str)
def run_cpython(N):
out, _ = run([CPYTHON, py_file.strpath, str(N)])
......@@ -94,7 +120,7 @@ def target(*args):
def compile_rpython_c():
mod = {}
exec(file_str, mod)
exec(py_code_str, mod)
rpy_fnc = mod['fib']
t = Translation(rpy_fnc, [int],
gc='none')
......@@ -106,7 +132,7 @@ def target(*args):
def compile_rpython_c_jit():
mod = {}
exec (file_str, mod)
exec (py_code_str, mod)
rpy_fnc = mod['fib']
t = Translation(rpy_fnc, [int],
gc='none')
......@@ -116,9 +142,15 @@ def target(*args):
fnp = getattr(ctypes.CDLL(libpath.strpath), 'pypy_g_' + rpy_fnc.__name__)
return fnp
def compile_c():
libpath = tmpdir.join('libfibonacci' + libext)
run([CC, '-fpic', '--shared', '-o', libpath.strpath, c_file.strpath])
lib = ctypes.CDLL(libpath.strpath)
return lib.fib
def compile_rpython_mu():
mod = {}
exec (file_str, mod)
exec (py_code_str, mod)
rpy_fnc = mod['fib']
# load libmu before rffi so to load it with RTLD_GLOBAL
......@@ -162,12 +194,14 @@ def target(*args):
t_rpyc = get_average_time_compiled(compile_rpython_c, [N], iterations=iterations)
t_rpyc_jit = get_average_time_compiled(compile_rpython_c_jit, [N], iterations=iterations)
t_rpyc_mu = get_average_time_compiled(compile_rpython_mu, [N], iterations=iterations)
t_c = get_average_time_compiled(compile_c, [N], iterations=iterations)
print "CPython:", t_cpython
print "PyPy (no JIT):", t_pypy_nojit
print "PyPy:", t_pypy
print "RPython C:", t_rpyc
print "RPython C (with JIT):", t_rpyc_jit
print "RPython Mu Zebu:", t_rpyc_mu
print "C:", t_c
if __name__ == '__main__':
perf_fibonacci()
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