On Fri, Mar 12, 2021 at 6:26 PM Steven Rostedt <rost...@goodmis.org> wrote: > > On Fri, 12 Mar 2021 15:47:26 +0100 > Borislav Petkov <b...@alien8.de> wrote: > > > On Fri, Mar 12, 2021 at 03:29:48PM +0100, Sedat Dilek wrote: > > > What does this change exactly mean to/for me? > > > > Probably nothing. > > > > I would be very surprised if it would be at all noticeable for you - > > it's not like the kernel is executing long streams of NOPs in fast > > paths. > > > > With ftrace enabled, every function starts with a NOP. But that said, the > simple answer is for Sedat to apply the patches on his box and do some > performance testing. It doesn't matter if you are white, black, male, > female, or anything in between. As my daughter's swim coach said; it's the > numbers that matter here. Run a bunch of benchmarks on your box on the > latest kernel, apply Peter's patches, and then run the benchmarks again on > the latest kernel with Peter's patches and then report the difference. If > it's negligible then there's nothing to worry about. >
Hey Steve, you degraded me to a number :-). I dunno which Git tree this patchset applies to, but I check if I can apply the patchset to my current local Git. Then build a kernel in the same build-environment. Lemme see. To say with Linus's words: "Numbers talk - bullshit walks." - Sedat -