LuaJIT Hacking: Getting next() out of the NYI list

The text discusses the performance optimization of LuaJIT code at Cloudflare. It highlights that optimizing LuaJIT code is crucial to improve overall performance, especially for core parts like inner loops. The author introduces a tool called Loom, which helps in understanding and analyzing LuaJIT's workings by providing more detailed information than the standard -jdump option. Additionally, the text discusses how the implementation of next() function has been optimized to improve performance.

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