Re: Memory usage and speed differences with lua 5.2 vs 5.3

[云风 Cloud Wu <cloudwu@...>]

Dane Springmeyer <dane@mapbox.com>于2016年9月29日周四 上午8:02写道：

Yes, I also tested with lua 5.3.1. The performance and memory usage was similar to 5.3.0. My complete debugging notes are 

So, it's not about string cache.

But I have no idea about 4x memory used, it's strange.

I agree, very surprising!

You may try to call "lua_gc(L, LUA_GCSETPAUSE, 400);" after init lua_State to see the difference. I guess only GC can make 4x memory used .