[luatex] slow io.popen

[Stephan Hennig]

Am 26.01.2013 17:38, schrieb Herbert Voss:
> On 26.01.2013 16:20, Stephan Hennig wrote:
> 
> voss at shania:~> time lua test-pipe.lua 
> Download/googlebooks-ger-all-1gram-20090715-0.csv.zip
> unzip -p Download/googlebooks-ger-all-1gram-20090715-0.csv.zip
> 
> real	0m10.488s
> user	0m14.325s
> sys	0m0.907s
> voss at shania:~> time texlua test-pipe.lua 
> Download/googlebooks-ger-all-1gram-20090715-0.csv.zip
> unzip -p Download/googlebooks-ger-all-1gram-20090715-0.csv.zip
> 
> real	0m17.273s
> user	0m22.695s
> sys	0m0.899s

Thanks for cross-checking!  While texlua is somewhat slower on Linux,
too, the big slowness seems to be Windows related.


> voss at shania:~> texlua -v
> This is LuaTeX, Version beta-0.70.2-2012052410 (TeX Live 2012)

I forgot:

  >texlua -v
  This is LuaTeX, Version beta-0.70.2-2012080612 (TeX Live 2012/W32TeX)

Best regards,
Stephan Hennig