Optimisation Tips

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Here are some ideas for optimising Lua code. Lua is already quite a quick scripting language. There are some issues to be aware of when writing code so that you can get the best efficiency. Most of the information on the pages here was copied from the Lua mailing list. Thanks to the posters for the information.

High-level
- OptimisingUsingLocalVariables
- OptimisingGarbageCollection
- OptimisationCodingTips
- ProfilingLuaCode
- MinimisingClosures
- ObjectBenchmarkTests
- VarargTheSecondClassCitizen - has benchmarks on tuples and varargs
- TablePreallocation - methods for preallocating space in Lua tables.
- StringTrim - performance comparison of string trim function implementation.
- [Lua object memory sizes] on wowwiki
- "Lua Performance Tips", Chapter 2, Lua Programming Gems (see LuaBooks) by Roberto Ierusalimschy contains performance tips on globals, tables, strings, and gc.
- LuaList:2009-12/msg00880.html - pattern performance notes

Low-level
- SimdExperiment - experimental Single Instruction Multiple Data capability for the Lua VM
- [LuaJIT] - a just-in-time compiler for Lua, which can run Lua code substantially faster
- LlvmLua - a JIT and static Lua compiler, depends on [LLVM]

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Last edited July 17, 2010 2:41 am GMT (diff)