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

Iov Gherman via Digitalmars-d-learn digitalmars-d-learn at puremagic.com
Mon Dec 22 10:23:27 PST 2014


On Monday, 22 December 2014 at 18:00:18 UTC, aldanor 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.
>
> import std.math, std.stdio, std.datetime;
>
> --> try replacing "std.math" with "core.stdc.math".

Tried it, it is worst:
6 secs, 78 ms while the initial one was 4 secs, 977 ms and 
sometimes even better.



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