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

Posted by bob on Mar 28, 2025 8:14 PM CST
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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...

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