math.log() benchmark of first 1 billion int using std.parallelism

[Iov Gherman via Digitalmars-d-learn]

On Monday, 22 December 2014 at 17:50:20 UTC, John Colvin wrote:
> On Monday, 22 December 2014 at 17:28:12 UTC, Iov Gherman wrote:
>> So, I did some more testing with the one processing in paralel:
>>
>> --- dmd:
>> 4 secs, 977 ms
>>
>> --- dmd with flags: -O -release -inline -noboundscheck:
>> 4 secs, 635 ms
>>
>> --- ldc:
>> 6 secs, 271 ms
>>
>> --- gdc:
>> 10 secs, 439 ms
>>
>> I also pushed the new bash scripts to the git repository.
>
> Flag suggestions:
>
> ldc2 -O3 -release -mcpu=native -singleobj
>
> gdc -O3 -frelease -march=native

Tried it, here are the results:

--- ldc:
6 secs, 271 ms

--- ldc -O3 -release -mcpu=native -singleobj:
5 secs, 686 ms

--- gdc:
10 secs, 439 ms

--- gdc -O3 -frelease -march=native:
9 secs, 180 ms