def test_benchmark_nbody_with_ppci(benchmark):
instance = wasm.instantiate(wasm.read_wasm(TEST_BYTES), {}, 'native')
nbody = instance.exports.main
def bench():
return nbody(N)
assert benchmark(bench)
def test_load_save(self):
""" Load program.wasm from disk and save it again. """
program_filename = os.path.join(
THIS_DIR, '..', '..', 'examples', 'wasm', 'program.wasm')
with open(program_filename, 'rb') as f:
wasm_module = read_wasm(f)
with open(program_filename, 'rb') as f:
content1 = f.read()
# Save to file:
f = io.BytesIO()
wasm_module.to_file(f)
content2 = f.getvalue()
# Compare contents:
self.assertEqual(content1, content2)
def test_load_save_via_text(self):
""" Round trip test via text format.
This is a good stress/sanity test on both
WAT generation and parsing.
"""
program_filename = os.path.join(
THIS_DIR, '..', '..', 'examples', 'wasm', 'program.wasm')
with open(program_filename, 'rb') as f:
content1 = f.read()
with open(program_filename, 'rb') as f:
wasm_module = read_wasm(f)
# convert to text format:
wat_text = wasm_module.to_string()
# Parse text format:
f = io.StringIO(wat_text)
wasm_module2 = read_wat(f)
content2 = wasm_module2.to_bytes()
self.assertEqual(content1, content2)
from ppci.wasm import instantiate, read_wasm
import mandel
import x
import time
with open('mandel.wasm', 'rb') as f:
module = read_wasm(f)
inst = instantiate(module, {'x': {'putc': x.putc}})
print(inst)
print('python -> wasm -> native code mandel:')
t1 = time.time()
inst.exports['mandel']()
t2 = time.time()
print('Python mandel:')
t3 = time.time()
mandel.mandel()
t4 = time.time()
dt_native = t2 - t1
dt_python = t4 - t3
print('native took:', dt_native, 'python took:', dt_python, 'speedup', dt_python / dt_native)
import io
from ppci.wasm import read_wasm
with open('fact.wasm', 'rb') as f:
m = read_wasm(f)
print(m)
m.show()