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PyCon2014China-Zhuhai-high performance

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November 17, 2014
Technology
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PyCon2014China-Zhuhai-high performance

141115 in Zhuhai

http://zoomq.qiniudn.com/CPyUG/PyCon2014China/141115zh-pm6-pyhq.MP3

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Zoom.Quiet

November 17, 2014
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Transcript

  1. Python是否适合高性能web开发 温铭

  2. 高性能服务端的要素 • 多：高并发，支撑用户多 • 快：单个请求处理速度快 • 易：易开发，易维护，方便调岗和招人

  3. 技术实现 • 高并发：异步 • 处理快：缓存，减少IO • 易开发：库，只用关心逻辑

  4. 通用的架构 • Nginx -> py -> memcached(redis) -> mysql •

    同步 • 跨服务器请求

  5. 理想的架构 • 异步、同步语法 • 多级缓存：进程、本机kv、跨服务器kv、 DB • 没有网络IO

  6. 现实：异步 • Tornado：第三方库齐全，回调 • Gevent：不改代码 • Asyncio New in python

    3.4

  7. 现实：缓存 • functools.lru_cache New in version 3.2

  8. Python的优势 • 丰富的库 • 开发快 • 易上手

  9. 嫁接 • Python + ？

  10. 嫁接 • Openresty：替换nginx，提供异步和共享缓 存 • Nginx -> py -> memcached(redis)

    -> mysql • openresty-> py -> cache(openresty ) -> kv(openresty ) -> mysql(openresty )

  11. 自己写服务端？ • 用户注册、登录 • 短信通知 • 消息推动 • 聊天 •

    存储 • 支付 • …

  12. 不用写服务端 • Parse • LeanCloud(AVOS)

  13. Q&A