Yes, if A: you have code that's expected to "fail" relatively many times, and B: this code is also multithreaded. A lot of code doesn't match one or both of the

Yes, if A: you have code that's expected to "fail" relatively many times, and B: this code is also multithreaded. A lot of code doesn't match one or both of these conditions while still being perf-sensitive. Further, as you can see in other comments, it's not an uncommon belief that exceptions simply shouldn't be used for A (and thus it's reasonable that they aren't optimized for something they aren't supposed to be used for).