import threading
import requests
import time
import pandas as pd

class TimeIt(object):
  def __init__(self, func):
    self._func = func
    self._result = []

  def __call__(self, *args, **kwargs):
    start_time = time.time_ns()
    res = self._func(*args, **kwargs)
    end_time = time.time_ns()
    self._result.append((end_time - start_time) // 1000000)
    return res

  def get_result(self):
    return self._result

class Delay(object):
  def __init__(self, func):
    self._func = func

  def __call__(self, *args, **kwargs):
    res = self._func(*args, **kwargs)
    time.sleep(100 // 1000)
    return res

class TestThread(threading.Thread):
  def __init__(self, request_times, **kwargs):
    threading.Thread.__init__(self, **kwargs)
    self._request_times = request_times
    self._time_it = TimeIt(self._target)
    self._real_func = Delay(self._time_it)
    self._target = self._execute

  def _execute(self, *args, **kwargs):
    for _ in range(self._request_times):
      self._real_func(*args, **kwargs)

  def get_time_result(self):
    if self._time_it:
      return self._time_it.get_result()
    return None

def test_request(url):
  requests.get(url)

def stress_test(url, concurrent_number, request_times):

  testThs = []
  result = []
  for ith in range(concurrent_number):
    testThs.append(TestThread(request_times, target = test_request, args = (url,)))

  for ith in range(concurrent_number):
    testThs[ith].start()

  for ith in range(concurrent_number):
    testThs[ith].join()

  for ith in range(concurrent_number):
    result.extend(testThs[ith].get_time_result())

  data = pd.Series(result)

  return data.count(), data.mean(), data.quantile(0.95)

if __name__ == '__main__':

  url = 'https://www.baidu.com'
  concurrent_number = 10
  request_times = 100

  count, mean, percentile95 = stress_test(url, concurrent_number, request_times)

  print('Stress Test')
  print(f'Test URL: {url}')
  print(f'Concurrent: {concurrent_number}')
  print(f'Test Times for Each: {request_times}')
  print(f'Total Times: {count}')
  print(f'Mean Response Time: {mean} ms')
  print(f'95 Percentile Response Time: {percentile95} ms')

Output
------------------
Stress Test
Test URL: https://www.baidu.com
Concurrent: 10
Test Times for Each: 100
Total Times: 1000
Mean Response Time: 276.13 ms
95 Percentile Response Time: 343.04999999999995 ms