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programming:lua:optimisation [2019/09/26 10:53] niziak created |
programming:lua:optimisation [2020/07/03 09:48] (current) niziak ↷ Page moved from lua:optimisation to programming:lua:optimisation |
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| + | [[https://www.lua.org/gems/sample.pdf|Lua Performance Tips]] | ||
| + | [[https://stackoverflow.com/questions/154672/what-can-i-do-to-increase-the-performance-of-a-lua-program|What can I do to increase the performance of a Lua program?]] | ||
| + | |||
| ====== Avoid globals ====== | ====== Avoid globals ====== | ||
| Local variables are very fast as they reside in virtual machine registers, and are accessed directly by index. Global variables on the other hand, reside in a lua table and as such are accessed by a hash lookup." -- Thomas Jefferson | Local variables are very fast as they reside in virtual machine registers, and are accessed directly by index. Global variables on the other hand, reside in a lua table and as such are accessed by a hash lookup." -- Thomas Jefferson | ||
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| <code lua> | <code lua> | ||
| local find = string.find | local find = string.find | ||
| + | local sin = math.sin | ||
| </code> | </code> | ||