dmd-x64

[bearophile]

Pelle MÃ¥nsson:
>The numbers on profile guided optimization seem a bit odd though.<

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.

Bye,
bearophile