Re: [ANN] Lua 5.2.1 (work1) now available
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- Subject: Re: [ANN] Lua 5.2.1 (work1) now available
- From: Miles Bader <miles@...>
- Date: 2012年4月02日 14:46:00 +0900
BTW, a few things I noticed doing this:
(1) I'm not really gaining all that much from LuaJIT; Lua 5.2 is
almost as fast as LuaJIT for this usage, and while Lua 5.1.4 is a
little slower than that, it's still quite respectable (certainly
fast enough to be perfectly usable).
This makes me happy because while I like and use LuaJIT, I don't
really want to become "LuaJIT dependent."
(2) These large memory tests show the downside of LuaJIT's use of
NaN-encoding for pointers on 64-bit systems: When I tried
_increasing_ the GC "pause" (hoping reduce GC overhead at the
expense of memory usage), LuaJIT died saying "memory exhausted" or
something, whereas Lua just kept on chugging.
[Given that I can mostly workaround my memory issues by doing
explicit calls to "collectgarbage", I'm wondering if Lua 5.2 might
actually be a better default for me than LuaJIT... it's better to
use a little more memory than die...]
(3) Lua 5.2.1-work1 does seem to be a litttttle faster in this test
than 5.2.0; the difference is probably too small be meaningful,
but it's persistent....
Thanks,
-miles
--
A zen-buddhist walked into a pizza shop and
said, "Make me one with everything."