api_test.py

from gradio_client import Client
import time
import numpy as np

import torch

from api_helper import preprocess_image, encode_numpy_array
clip_image_size = 224
num_steps = 1000

client = Client("http://127.0.0.1:7860/")

print("do we have cuda", torch.cuda.is_available())

def test_text():
    result = client.predict(
                    "Howdy!",	# str representing string value in 'Input' Textbox component
                    api_name="/text_to_embeddings"
    )
    return(result)

def test_image():
    result = client.predict(
				"https://raw.githubusercontent.com/gradio-app/gradio/main/test/test_files/bus.png",	# str representing filepath or URL to image in 'Image Prompt' Image component
				api_name="/image_to_embeddings"
    )
    return(result)

def test_image_as_payload(payload):
    result = client.predict(
                payload,	# image as string payload
                api_name="/image_as_payload_to_embeddings"
    )
    return(result)

# performance test for text
start = time.time()
for i in range(num_steps):
    test_text()
end = time.time()
average_time_seconds = (end - start) / num_steps
print("Average time for text: ", average_time_seconds, "s")
print("Average time for text: ", average_time_seconds * 1000, "ms")
print("Number of predictions per second for text: ", 1 / average_time_seconds)

# performance test for image
start = time.time()
for i in range(num_steps):
    test_image()
end = time.time()
average_time_seconds = (end - start) / num_steps
print("Average time for image: ", average_time_seconds, "s")
print("Average time for image: ", average_time_seconds * 1000, "ms")
print("Number of predictions per second for image: ", 1 / average_time_seconds)



test_image_url = "https://raw.githubusercontent.com/gradio-app/gradio/main/test/test_files/bus.png"
# download image from url
import requests
from PIL import Image
from io import BytesIO
response = requests.get(test_image_url)
input_image = Image.open(BytesIO(response.content))
input_image = input_image.convert('RGB')
# convert image to numpy array
input_image = np.array(input_image)


if input_image.shape[0] > clip_image_size or input_image.shape[1] > clip_image_size:
    input_image = preprocess_image(input_image, clip_image_size)
payload = encode_numpy_array(input_image)

# performance test for image as payload
start = time.time()
for i in range(num_steps):
    test_image_as_payload(payload)
end = time.time()
average_time_seconds = (end - start) / num_steps
print("Average time for image as payload: ", average_time_seconds, "s")
print("Average time for image as payload: ", average_time_seconds * 1000, "ms")
print("Number of predictions per second for image as payload: ", 1 / average_time_seconds)