Re: Size optimizations for Lua 5.3 VM on ARM Cortex M4

[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index] [Thread Index]

Subject: Re: Size optimizations for Lua 5.3 VM on ARM Cortex M4
From: 云风 Cloud Wu <cloudwu@...>
Date: 2018年6月12日 07:35:49 -0400

Phil Leblanc <philanc@gmail.com>于2018年6月11日周一上午3:21写道：

>> What are my other options to reduce the size? (...)

> You may get rid off the metatable, it can reduce many codes.

I am curious about this. Has anybody built a Lua derivative without metatables?

Is it feasible? or are metatables too deeply intricated with the Lua VM?

What would be the gain? (executable footprint, performance?)

I try to do some quick and dirty works to remove metatable from lua VM (not test yet) . It can reduce about 5K executable footprint or more . I haven't remove metatable pointer from struct Table and Udata yet, maybe it can reduce a little memory at runtime.

Attachment: removemt.diff
Description: Binary data

Follow-Ups:
- Re: Size optimizations for Lua 5.3 VM on ARM Cortex M4, Phil Leblanc

References:
- Size optimizations for Lua 5.3 VM on ARM Cortex M4, Abhijit Nandy
- Re: Size optimizations for Lua 5.3 VM on ARM Cortex M4, 云风
- Re: Size optimizations for Lua 5.3 VM on ARM Cortex M4, Phil Leblanc

Prev by Date: Re: A more flexible table.remove
Next by Date: Re: A more flexible table.remove
Previous by thread: Re: Size optimizations for Lua 5.3 VM on ARM Cortex M4
Next by thread: Re: Size optimizations for Lua 5.3 VM on ARM Cortex M4
Index(es):
- Date
- Thread