This week Michael Hudson-Doyle of the #Ubuntu Foundations team published a write-up of our experimentation with the `-O3` GCC flag by default in the distribution.

The tl;dr is that we don't yet believe that the change makes sense globally, but there are certainly come packages that would benefit from using the increased optimisation level.

See the post here: https://discourse.ubuntu.com/t/benchmarking-a-distribution-and-some-o3-results/58027

Benchmarking a distribution (and some \-O3 results)

In our previous Foundations update @mclemenceau shared an update on some of the experiments we conducted during the Plucky Puffin cycle, in particular about our decision to revert the change to the -O3 optimization level by default on amd64. As promised here is a few more details about what went into this project, methods used and challenges encountered. Results of -O3 experiment tl;dr Performance is slightly worse and packages are slightly bigger with -O3 by default and we will revert the chan...

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