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import time
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import psutil
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import tracemalloc
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import requests
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import aiohttp
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def compute_task():
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start_time = time.time()
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result = sum(i * i for i in range(10**7))
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end_time = time.time()
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print(f"compute_task耗时：{end_time - start_time}秒")
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async def async_compute_task():
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start_time = time.time()
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result = sum(i * i for i in range(10**7))
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end_time = time.time()
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print(f"async_compute_task耗时：{end_time - start_time}秒")
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def measure_performance(func):
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def wrapper(*args, **kwargs):
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print(f"开始运行{func.__name__}")
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time.sleep(30)
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print(f"运行前的CPU使用率：{psutil.cpu_percent()}%")
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print(f"运行前的内存使用率：{psutil.virtual_memory().percent}%")
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print()
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tracemalloc.start()
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start_time = time.time()
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func(*args, **kwargs)
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end_time = time.time()
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current, peak = tracemalloc.get_traced_memory()
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tracemalloc.stop()
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print(f"{func.__name__}耗时：{end_time - start_time}秒")
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print(f"当前内存使用：{current / 10**6}MB, 峰值内存使用：{peak / 10**6}MB")
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print(f"CPU使用率：{psutil.cpu_percent(interval=1)}%")
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print(f"内存使用率：{psutil.virtual_memory().percent}%")
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print()
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time.sleep(30)
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print(f"运行结束30秒后的CPU使用率：{psutil.cpu_percent()}%")
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print(f"运行结束30秒后的内存使用率：{psutil.virtual_memory().percent}%")
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print(f"运行结束{func.__name__}结束")
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print()
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return wrapper
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def measure_performance_async(func):
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async def wrapper(*args, **kwargs):
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print(f"开始运行{func.__name__}")
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time.sleep(30)
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print(f"运行前的CPU使用率：{psutil.cpu_percent()}%")
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print(f"运行前的内存使用率：{psutil.virtual_memory().percent}%")
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print()
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tracemalloc.start()
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start_time = time.time()
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await func(*args, **kwargs)
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end_time = time.time()
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current, peak = tracemalloc.get_traced_memory()
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tracemalloc.stop()
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print(f"{func.__name__}耗时：{end_time - start_time}秒")
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print(f"当前内存使用：{current / 10**6}MB, 峰值内存使用：{peak / 10**6}MB")
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print(f"CPU使用率：{psutil.cpu_percent(interval=1)}%")
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print(f"内存使用率：{psutil.virtual_memory().percent}%")
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print()
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time.sleep(30)
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print(f"运行结束30秒后的CPU使用率：{psutil.cpu_percent()}%")
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print(f"运行结束30秒后的内存使用率：{psutil.virtual_memory().percent}%")
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return wrapper
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def fetch_url(url):
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response = requests.get(url)
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async def fetch_url_async(url):
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async with aiohttp.ClientSession() as session:
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async with session.get(url, ssl=False) as response:
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await response.read()
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urls = [
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"https://www.baidu.com", "https://www.qq.com", "https://www.taobao.com",
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"https://www.tmall.com", "https://www.jd.com", "https://www.sina.com.cn",
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"https://www.weibo.com", "https://www.163.com", "https://www.sohu.com",
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"https://www.ifeng.com", "https://www.alipay.com", "https://www.youku.com",
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"https://www.iqiyi.com", "https://www.tudou.com", "https://www.douyin.com",
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"https://www.meituan.com", "https://www.xiaomi.com",
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"https://www.oppo.com", "https://www.vivo.com", "https://www.dianping.com",
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"https://www.autohome.com.cn", "https://www.hupu.com",
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"https://www.xinhuanet.com", "https://www.chinadaily.com.cn",
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"https://www.people.com.cn", "https://www.cctv.com", "https://www.cntv.cn",
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"https://www.zol.com.cn", "https://www.pconline.com.cn",
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"https://www.techweb.com.cn", "https://www.cs.com.cn",
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"https://www.eastmoney.com", "https://www.hexun.com",
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"https://www.yicai.com", "https://www.21jingji.com"
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]
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