example-code-2e/11-pythonic-obj/mem_test.py
2021-01-31 22:48:38 +01:00

25 lines
706 B
Python

import importlib
import sys
import resource
NUM_VECTORS = 10**7
if len(sys.argv) == 2:
module_name = sys.argv[1].replace('.py', '')
module = importlib.import_module(module_name)
else:
print(f'Usage: {sys.argv[0]} <vector-module-to-test>')
sys.exit(1)
fmt = 'Selected Vector2d type: {.__name__}.{.__name__}'
print(fmt.format(module, module.Vector2d))
mem_init = resource.getrusage(resource.RUSAGE_SELF).ru_maxrss
print(f'Creating {NUM_VECTORS:,} Vector2d instances')
vectors = [module.Vector2d(3.0, 4.0) for i in range(NUM_VECTORS)]
mem_final = resource.getrusage(resource.RUSAGE_SELF).ru_maxrss
print(f'Initial RAM usage: {mem_init:14,}')
print(f' Final RAM usage: {mem_final:14,}')