Comment by Dylan16807

I wasn't excusing all overhead, I was excusing the difference in overhead caused by making the lock more flexible. Because that's what the discussion is about, a lock that can be shared between processes versus a lock that can't be. The penalty for being "too flexible".

But assuming reasonable implementations, the difference between those two lock styles shouldn't be more than about a microsecond, should it? So that's fine for a lock that's only used 100 times a second.

I'm not comparing windows and linux anywhere.