Re: [PATCH 0/2] x86: Remove ideal_nops[]

On Sat, Mar 27, 2021 at 5:08 AM Sedat Dilek [off-list ref] wrote:

debian-5.10.19 as host-kernel:
11655.755564957 seconds time elapsed

dileks-5.12-rc3 plus x86-nops as host-kernel:
11941.439350080 seconds time elapsed

That's 2.5% - a huge difference. Particularly since kernel build times
shouldn't even be that kernel-intensive.

I think there's something else going on than the nops. Same config?
There are likely many other differences between 5.10.19 and 5.12-rc3.

So can you check just plain 5.12-rc3 and then 5.12-rc3 plus x86-nops,
with otherwise identical configuration?

               Linus