Any takers for http://d.puremagic.com/issues/show_bug.cgi?id=9673?

[Rainer Schuetze]

On 10.03.2013 15:11, Vladimir Panteleev wrote:
> On Sunday, 10 March 2013 at 13:40:04 UTC, Rainer Schuetze wrote:
>> My usual estimate is about twice as fast,
>
> That's still a huge difference. For one compiler to beat another 200% at
> something that isn't a microbenchmark isn't something you hear about often.

I thought that factor 2 was common knowledge. See also this compiler 
comparison: http://www.willus.com/ccomp_benchmark2.shtml?p18+s14

>
>> but it depends on what you compile. It doesn't have a huge effect on
>> running the test suite, my guess is that the runtime initialization
>> for the MS build is slightly slower than for the dmc build, and there
>> are a large number of small files to compile there.
>
> But we're looking at the combined compilation numbers!

Compilation itself takes only a little part of the test suite. Most of 
it is creating and initializing compiler processes and executing the tests.
I've redone the test suite comparison (quick test single core): 2:38 min 
for msc, 2:32 for dmc, so no big difference, dmc even wins. I disabled 
turbo boost for the i7, but temperature control still throttled the CPU, 
so accuracy is not very good.