Messages in this thread | | | From | Linus Torvalds <> | Date | Wed, 19 Oct 2016 08:29:14 -0700 | Subject | Re: [4.9-rc1] Build-time 2x slower |
| |
On Wed, Oct 19, 2016 at 4:07 AM, Jörg Otte <jrg.otte@gmail.com> wrote: > > Additional info: I usally use schedutil governor. > If I switch to performance governor problems go away. > Maybe a cpufreq problem?
Oh, I completely misread the original bug report, and then didn't read your confirmation email right.
I thought you had a slower build of the different kernels (when building on the same kernel), and that the _build_ itself had slowed down for some reason. But you're actually saying that doing the _same_ build actually takes longer when running on 4.9-rc1.
My bad.
There are a few small cpufreq changes there in between commit 29fbff8698fc (that you reported was fine - please tell me I got _that_ right, at least?) and 4.9-rc1. Adding Rafael to the cc.
That said, none of them look all that likely to me. It *would* be good if you could bisect it a bit (perhaps not fully, but a couple of bisection steps to narrow down what area it is).
Linus
| |