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

[Patrick Gundlach]

> Am 04.06.2017 um 13:26 schrieb Dirk Laurie <dirk.laurie at gmail.com>:
> 
> 2017-06-03 22:11 GMT+02:00 Patrick Gundlach <patrick at gundla.ch>:
> 
>>> a sample lua script runs twice slower with texlua of TL2017
>>> than with the texlua from TL2016 and bare lua 5.3.3 I also
>>> have on my mac os x 10.9.5
>> 
>> 
>> I am not sure if this is still relevant (I haven't followed the whole discussion). Anyway: on my system (latest Mac Laptop with up to date software) I have the same results with tl2017 and tl2016 (minor differences of course):
>> 
>> 
>> $ time texlua collatz.lua
>> 
>> real    0m14.837s
>> user    0m14.552s
>> sys     0m0.106s
>> 
>> $ time texluajit collatz.lua
>> 
>> real    0m10.231s
>> user    0m10.205s
>> sys     0m0.012s
> 
> I don't think it is a fair or even relevant test of texlua to use it on
> a CPU-intensive job involving no string processing whatsover,
> especially one that is easy and natural to do directly in C.


...


I don't understand your comment, could you elaborate?

I just wanted to state that tl2016 and tl2017 have the same processing time, with and without jit.


Patrick