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Published on Dec 4, 2016
OpenResty is a high performance web platform built on Lua and NGINX. We have large-scale Internet products built upon OpenResty in companies like CloudFlare, Jingdong, Adobe, Tencent, Sina, Alibaba, Youku, and many others. Over the years, we created many advanced profiling tools that can do online and offline performance analysis. In this presentation, the creator of OpenResty, Yichun Zhang, will examine various important Lua coding details that matter a lot in high performance Lua web applications atop LuaJIT and OpenResty. Then he will walk through some interesting details in the LuaJIT internals when performance is concerned. Finally, approaches like higher level DSLs will be proposed to do automatic Lua code optimizations on Lua programmers' behalf.