vibe.d & exception performance

[Dicebot]

On Sunday, 9 February 2014 at 16:07:52 UTC, Marc Schütz wrote:
> But the difference actual difference is so much larger. Where 
> does it come from? It might mean that there is some costly 
> operation that both `new` and `toString()` perform. Or it might 
> actually be a bug, and when fixed, would have worse 
> performance. It seems almost too good to be true...

Both "new" and stack trace generation ("toString") are rather 
costly operations on their own. And both can trigger GC 
collection cycles. It is not wonder that removing both results in 
such an improvement.

I think proposal to omit stack traces in release builds is a good 
idea.