[luatex] slower texlua at LuaTeX 1.0.4 (TL 2017) ?

[jfbu]

Hi,

my findings are ont reproduced on a Linux Box:

typically:

$ time /pathto/texlive/2016/bin/x86_64-linux/texlua collatz.lua 1 1000000
837799

real	0m23.755s
user	0m23.720s
sys	0m0.000s


and

$ time /pathto/texlive/2017/bin/x86_64-linux/texlua collatz.lua 1 1000000
837799

real	0m21.094s
user	0m21.080s
sys	0m0.000s


I don't have an independent Lua interpreter installed here.

And although timing varies up to 10%, it seems to the contrary the
TL2017 version is a bit faster here.

(TL2016 fully updated, TL2107 pretest fully updated)

I would be interested to here about other architectures.

Perhaps there is a special problem with x86_64-darwinlegacy ?

Should I move the thread to texlive ?

Best

Jean-François