perf_test Namespace Reference

Variables
	dir = path.dirname(path.realpath(__file__))
	parser = argparse.ArgumentParser(description='Benchmark for overlay_alpha')
	dest
	action
	help
	type
	int
	default
	choices
	args = parser.parse_args()
	uint8_t_p = ctypes.POINTER(ctypes.c_uint8)
	size_t = ctypes.c_size_t
	void = None
string	so = "libalpha-lib-"
	dll = ctypes.cdll.LoadLibrary(path.join(dir, so))
	overlay_alpha = dll['overlay_alpha_stride_' + args.rescale]
	argtypes
	restype
	sizes = np.linspace(args.min_size, args.max_size, args.N, dtype=np.int)
	times = np.zeros((args.N, ))
	bg_img = np.random.randint(255, size=(size, size, 4), dtype=np.uint8)
	fg_img = np.random.randint(255, size=(size, size, 4), dtype=np.uint8)
	out_img = np.zeros((size, size, 4), dtype=np.uint8)
	bg_img_p = bg_img.ctypes.data_as(uint8_t_p)
	fg_img_p = fg_img.ctypes.data_as(uint8_t_p)
	out_img_p = out_img.ctypes.data_as(uint8_t_p)
	iterations = int(round(args.max_size * args.max_iterations / size))
	start_time = time.perf_counter()
	end_time = time.perf_counter()
	results = np.column_stack((sizes, times))
tuple	simd = (' simd ' if args.SIMD else ' no-simd ')
tuple	name = str(time.asctime()) + simd + args.rescale + ' ' + platform.machine()
	delimiter

Variable Documentation

dir

dir = path.dirname(path.realpath(__file__))

Definition at line 61 of file perf_test.py.

parser

parser = argparse.ArgumentParser(description='Benchmark for overlay_alpha')

Definition at line 63 of file perf_test.py.

dest

dest

Definition at line 64 of file perf_test.py.

action

action

Definition at line 64 of file perf_test.py.

help

help

Definition at line 65 of file perf_test.py.

type

type

Definition at line 66 of file perf_test.py.

int

int

Definition at line 66 of file perf_test.py.

default

default

Definition at line 66 of file perf_test.py.

choices

choices

Definition at line 74 of file perf_test.py.

args

args = parser.parse_args()

Definition at line 78 of file perf_test.py.

uint8_t_p

uint8_t_p = ctypes.POINTER(ctypes.c_uint8)

Definition at line 82 of file perf_test.py.

size_t

size_t = ctypes.c_size_t

Definition at line 83 of file perf_test.py.

void

void = None

Definition at line 84 of file perf_test.py.

so

string so = "libalpha-lib-"

Definition at line 86 of file perf_test.py.

dll

dll = ctypes.cdll.LoadLibrary(path.join(dir, so))

Definition at line 90 of file perf_test.py.

overlay_alpha

overlay_alpha = dll['overlay_alpha_stride_' + args.rescale]

Definition at line 91 of file perf_test.py.

argtypes

argtypes

Definition at line 92 of file perf_test.py.

restype

restype

Definition at line 101 of file perf_test.py.

sizes

sizes = np.linspace(args.min_size, args.max_size, args.N, dtype=np.int)

Definition at line 104 of file perf_test.py.

times

times = np.zeros((args.N, ))

Definition at line 105 of file perf_test.py.

bg_img

bg_img = np.random.randint(255, size=(size, size, 4), dtype=np.uint8)

Examples

examples/overlay_alpha/overlay_alpha.cpp.

Definition at line 112 of file perf_test.py.

fg_img

fg_img = np.random.randint(255, size=(size, size, 4), dtype=np.uint8)

Examples

examples/overlay_alpha/overlay_alpha.cpp.

Definition at line 113 of file perf_test.py.

out_img

out_img = np.zeros((size, size, 4), dtype=np.uint8)

Definition at line 114 of file perf_test.py.

bg_img_p

bg_img_p = bg_img.ctypes.data_as(uint8_t_p)

Definition at line 115 of file perf_test.py.

fg_img_p

fg_img_p = fg_img.ctypes.data_as(uint8_t_p)

Definition at line 116 of file perf_test.py.

out_img_p

out_img_p = out_img.ctypes.data_as(uint8_t_p)

Definition at line 117 of file perf_test.py.

iterations

iterations = int(round(args.max_size * args.max_iterations / size))

Definition at line 120 of file perf_test.py.

start_time

start_time = time.perf_counter()

Definition at line 121 of file perf_test.py.

end_time

end_time = time.perf_counter()

Definition at line 124 of file perf_test.py.

results

results = np.column_stack((sizes, times))

Definition at line 128 of file perf_test.py.

simd

tuple simd = (' simd ' if args.SIMD else ' no-simd ')

Definition at line 129 of file perf_test.py.

name

tuple name = str(time.asctime()) + simd + args.rescale + ' ' + platform.machine()

Definition at line 130 of file perf_test.py.

delimiter

delimiter

Definition at line 131 of file perf_test.py.