Re: Sample based profiling

[Joerg Sonnenberger <joerg%bec.de@localhost>]

On Wed, Aug 01, 2018 at 11:54:10PM -0400, Thor Lancelot Simon wrote:
> On Tue, Jul 31, 2018 at 08:28:19AM +0000, Christos Zoulas wrote:
> > In article <2c408f23-6eae-da00-dfb2-ebc7b66e689c%gmx.com@localhost>,
> > Kamil Rytarowski  <n54%gmx.com@localhost> wrote:
> > >
> > >I'm for removal of gprof and deduplication of .a files in the base.
> > >
> > >While there, can we get rid of moncontrol(3), profil(2) and all the
> > >corresponding code?
> > 
> > I constantly see proposals to remove things from base without replacing
> > the functionality first. Yes, the current state is poor but the 
> > "hand hurts, cut hand" approach is worse.
> 
> Here it'd also be "cut arm", I think, since the kernel profiling that
> relies on the same tools does still work, and, though limited, can do
> some things out of the box that take nontrivial effort with the DTrace
> FBT provider, the nearest alternative.

The kernel is quite different beast as it is self-contained.

Joerg