Disappointing math performance compared to GDC

Gabor Mezo via digitalmars-d-ldc digitalmars-d-ldc at puremagic.com
Wed Oct 8 23:14:04 PDT 2014


> Would it be possible to publish the relevant parts of the code, 
> i.e. what is needed to reproduce the performance problem? I'm 
> currently working on a D compiler performance tracking project, 
> so real-world test-cases where one compiler does much better 
> than another are interesting to me.
>
> If the code is proprietary, would it be possible for or me 
> another compiler dev to have a look at the code, so we can 
> determine the issues more quickly?
>
>> DMD 2.066 -O -release -inline -boundscheck=off : 0.06 secs
>> LDC2 0.14 -O3 -release                         : 0.051 secs

Of course. The code will be accessible on github on this week. 
This is an LGPL licensed hobbyist project, not confidential. ;)


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