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- Subject: Re: [ANN] Lua 5.4.0 (work2) now available
- From: Roberto Ierusalimschy <roberto@...>
- Date: Tue, 19 Jun 2018 09:22:44 -0300
> The focus of Lua 5.4.0 is performance. We're especially interested in
> feedback about its performance but all feedback is welcome. Thanks.
In particular, we are interested in how our jump table implementation
behave in different platforms. It seems to hurt performance in some
systems. You can turn them on/off defining the flag LUA_USE_JUMPTABLE
to 1 or 0. The default is 1 when __GNUC__ is defined. Also, in some
systems you may get better performance with jump tables by turning
off some compiler optimizations, such as crossjumping.