dmd makes D appear slow

[Steven Schveighoffer via Digitalmars-d]

On 5/29/15 4:05 PM, Idan Arye wrote:
> On Friday, 29 May 2015 at 19:16:45 UTC, Steven Schveighoffer wrote:
>> On 5/29/15 12:58 PM, H. S. Teoh via Digitalmars-d wrote:
>>> On Fri, May 29, 2015 at 06:50:02PM +0000, Dicebot via Digitalmars-d
>>> wrote:
>>>> On Friday, 29 May 2015 at 18:38:20 UTC, H. S. Teoh wrote:
>>>>> This will probably offend some people, but I think LDC/GDC should be
>>>>> the default download on dlang.org, and dmd should be provided as an
>>>>> alternative for those who want the latest language version and don't
>>>>> mind the speed compromise.
>>>>
>>>> I did make LDC default compiler used in Arch but now people are
>>>> unhappy with increased compile times so I may need to revert it back
>>>> :)
>>>
>>> Can't please 'em all... According to Walter, many D users want fast
>>> compile times, and aren't as concerned about performance of the
>>> generated code. But from this thread's OP, it seems there's another
>>> group of users who don't care about fast compile times but want the
>>> generated code to squeeze every last drop of performance from their
>>> CPUs.
>>>
>>> So I guess we should be equally recommending all 3 compilers, with a
>>> note to help people choose their compiler depending on their needs.
>>
>> myOpinion = (fastCompileTimes * 10000 < fastCode);
>
> For the development cycle too?

I saw the slide from Liran that shows your compiler requirements :) I 
can see why it's important to you.

But compiled code outlives the compiler execution. It's the wart that 
persists.

But techniques (for most projects) are available to speed compile time, 
and even in that case, compile time for whole project is quite low.

For very large projects, toolchain performance is definitely important. 
We need to work on that.

But I don't see how speed of compiler should sacrifice runtime performance.

-Steve