【python3】tornado高性能编程

• 使用多进程充分利用cpu
• 使用异步编程 asyncio

import asyncio
import time
from abc import ABC
from concurrent.futures import ProcessPoolExecutor
from tornado import web, ioloop, gen


async def async_task(name):
    print(f"start: {name}")
    st = int(time.time())
    time.sleep(3)  # 模拟同步等待 
    await asyncio.sleep(3)  # 模拟异步等待
    result = f"task: {name}, start: {st}, end: {int(time.time())}"
    return result


def run_async_task(name):
    return asyncio.run(async_task(name))


class MainHandler(web.RequestHandler, ABC):
    executor = ProcessPoolExecutor()  # 进程池

    @gen.coroutine
    def get(self):
        task_name = self.get_argument("task", "task-1")
        result = yield self.executor.submit(run_async_task, task_name)
        self.write(result)


def make_app():
    return web.Application([
        (r"/", MainHandler),
    ])


if __name__ == '__main__':
    app = make_app()
    app.listen(8888)
    print("http://localhost:8888/?task=task-X")
    ioloop.IOLoop.current().start()