Re: The killing of ideal_nops[]

[Peter Zijlstra]

On Tue, Mar 09, 2021 at 12:05:19PM -0500, Steven Rostedt wrote:
> On Tue, 9 Mar 2021 17:58:17 +0100
> Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> 
> > Hi,
> > 
> > AFAICT everything made in the past 10 years ends up using p6_nops. Is it
> > time to kill off ideal_nops[] and simplify life?
> > 
> 
> Well, the one bug that was reported recently was due to a box that uses a
> different "ideal_nops" than p6_nops. Perhaps we should ask him if there's
> any noticeable difference between using p6_nops for every function than the
> ideal_nops that as found for that box.

If the machine is more than a decade old, I'm not really caring about
optimal performance. If it is 32bit, I really couldn't be arsed as long
as it boots.