You led with "my experiments with profile-guided optimization have been thus far disappointing". My point is that in many cases people get 15% improvements. Do

You led with "my experiments with profile-guided optimization have been thus far disappointing". My point is that in many cases people get 15% improvements. Do you consider that a disappointing result? Are you disregarding other people's results? or are you disappointed that they don't apply in your specific situations? I originally gave you the benefit of the doubt by thinking it was the last of these, and speculated about how your situation differs. Now I don't know what you want, except to show off how smart you are vs how poor a reader I am, regardless of accuracy. I'm not interested. Bye.