Ubuntu Provides More Insight Into Their Decision Not To "-O3" Optimize All Packages

Since last year Canonical had been investigating using -O3 compiler optimizations for their Ubuntu package builds in the name of delivering better performance for Ubuntu Linux. A few weeks back though they decided they would not use -O3 optimizations for all packages. They have now provided more engineering insight into their reasoning and the results of their investigation into -O3 compiler optimizations for more packages...