dmd-x64

[Walter Bright]

bearophile wrote:
> You are right. It's not easy to give average numbers for any kind of
> C or C++ software. In benchmark-like code I've seen up to 20-25%
> improvements, but I assume that in much larger programs the situation
> is different. Probably if you try to compute a true average, the
> average percentage of improvement is lower, like 5% or less. It's a
> feature useful for hot spots of the code.


Small benchmarks tend to have a high 'beta', or variance from the norm. 
The results in actual applications tend to be much closer together.