On Mon, Apr 27, 2015 at 9:00 PM, Bobby Powers <bobbypowers@xxxxxxxxx> wrote: > Hello, > > Andev wrote: >> I usually compile my kernel with an unsupported O3 option(why not? :). > > Because there have been publications that show on major benchmarks, > the effects of -O3 are indistinguishable from noise: > http://people.cs.umass.edu/~emery/pubs/Stabilizer-UMass-CS-TR2011-43.pdf > > Have you noticed that -O3 provides any performance benefits over -O2? > Look here: http://www.spinics.net/lists/kernel/msg1962561.html Btw, this will help uncover problems in either gcc or the kernel for sure. So no harm in trying! -- Andev _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
