On Fri, Apr 08, 2016 at 04:43:29PM -0700, Nick Fitzgerald wrote:
> Is there a reason why we aren't using LTO?

Last time it was tried, LTO regressed performance compared to the PGO
builds we produce (and yes, both LTO and LTO+PGO were tried).

We recently upgraded GCC to 4.8, so we can give it another spin, but I
don't think 4.8 would make a significant difference here. I want to
update to 5.3 next cycle (but keeping the minimum supported version at
4.8), maybe that one would make a difference.

Mike
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