https://issues.dlang.org/show_bug.cgi?id=12708

On Sunday, 4 May 2014 at 16:07:30 UTC, Andrei Alexandrescu wrote:
> On 5/4/14, 1:44 AM, Atila Neves wrote:
>> On Saturday, 3 May 2014 at 22:46:03 UTC, Andrei Alexandrescu wrote:
>>> On 5/3/14, 2:42 PM, Atila Neves wrote:
>>>> gdc gave _very_ different results. I had to use different modules
>>>> because at some point tests started failing, but with gdc the threaded
>>>> version runs ~3x faster.
>>>>
>>>> On my own unit-threaded benchmarks, running the UTs for Cerealed over
>>>> and over again was only slightly slower with threads than without. With
>>>> dmd the threaded version was nearly 3x slower.
>>>
>>> Sounds like a severe bug in dmd or dependents. -- Andrei
>>
>> Seems like it. Just to be sure I swapped ld.gold for ld.bfd and the
>> problem was still there.
>>
>> I'm not entirely sure how to file this bug: with just my simple example
>> above?
>
> The simpler the better. -- Andrei