I could boot it using qemu. So what's the point? On Tue, Apr 28, 2015 at 2:41 AM, Andev <debiandev@gmail.com> wrote:
On Mon, Apr 27, 2015 at 9:00 PM, Bobby Powers <bobbypowers@gmail.com> 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
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