lil & csr & ndarray & list占用空间比较

Ubuntu16.04 64位
python3.5
pycharm

# experiment

#list
print(sys.getsizeof(feature))

feature_int64 = np.asarray(feature)
feature_int8 = np.asarray(feature, dtype=np.int8)
# ndarray
print(sys.getsizeof(feature_int64))
print(sys.getsizeof(feature_int8))
# csr
print(sys.getsizeof(scipy.sparse.csr_matrix(feature_int64)))
print(sys.getsizeof(scipy.sparse.csr_matrix(feature_int8)))
# lil
print(sys.getsizeof(scipy.sparse.lil_matrix(feature_int64)))
print(sys.getsizeof(scipy.sparse.lil_matrix(feature_int8)))

output：

26736     list

98114800  ndarray int64
12264448  ndarray int8

56        csr int64
56        csr int8

56        lil int64
56        lil int8