micropython/tests/internal_bench/arrayop-4-bytearray_map.py

# Array operation
# Type: list, map() call. This method requires allocation of
# the same amount of memory as original array (to hold result
# array). On the other hand, input array stays intact.
import bench


def test(num):
    for i in iter(range(num // 10000)):
        arr = bytearray(b"\0" * 1000)
        arr2 = bytearray(map(lambda x: x + 1, arr))


bench.run(test)
bench: Add test for map() vs inplace operations in array-likes. map() is 5 times slower. That's mostly because of inefficiency of creating containers from iterables of unknown length (like map()). 2014-06-19 19:54:51 +01:00			`# Array operation`
			`# Type: list, map() call. This method requires allocation of`
			`# the same amount of memory as original array (to hold result`
			`# array). On the other hand, input array stays intact.`
			`import bench`

tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren't changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting. 2020-03-23 02:26:08 +00:00
bench: Add test for map() vs inplace operations in array-likes. map() is 5 times slower. That's mostly because of inefficiency of creating containers from iterables of unknown length (like map()). 2014-06-19 19:54:51 +01:00			`def test(num):`
			`for i in iter(range(num // 10000)):`
			`arr = bytearray(b"\0" * 1000)`
			`arr2 = bytearray(map(lambda x: x + 1, arr))`

tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren't changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting. 2020-03-23 02:26:08 +00:00
bench: Add test for map() vs inplace operations in array-likes. map() is 5 times slower. That's mostly because of inefficiency of creating containers from iterables of unknown length (like map()). 2014-06-19 19:54:51 +01:00			`bench.run(test)`