Re: [PATCH RFC 0/3] Static calls

[Josh Poimboeuf]

On Mon, Nov 12, 2018 at 12:03:34PM -0500, Steven Rostedt wrote:
> On Sun, 11 Nov 2018 23:30:55 -0600
> Josh Poimboeuf <jpoimboe@xxxxxxxxxx> wrote:
> 
> > > How much of that slowdown is reversed?  
> > 
> > In theory, it should reverse all of the slowdown, and actually may even
> > speed it up a little.  Steve is working on measuring that now.
> 
> When I'm able to get it to work! Hopefully that last patch snippet you
> posted will help. If not, I'm assuming you'll be in Vancouver this
> week, and we could sit down and work it out.

Sure, I'm already in Vancouver.  Just grab me if you see me, or ping me
on IRC/email.  Or feel free to send me your patches if it's still giving
you trouble.

> That said, I don't expect a 100% improvement. Because the retpoline
> causes slow down in other areas than just tracing, which is not being
> fixed by this. I'm expecting a substantial improvement (which I see
> good improvement with the unoptimized static calls), and hoping for
> much more with the optimized one (when I get it working). But not 100%,
> as stated above.

Ah, ok.  Makes sense.

-- 
Josh