AutoFDO profile toolchain is open-sourced

[Andi Kleen]

> > BTW the biggest problem with autofdo currently is that it is
> > quite bitrotten and supports only several years old perf.
> > So all of this above will only work with old distributions,
> > unless you compile an old perf utility first.
> 
> Do you mean newer perf does not support LBR (-b) any more?

No.

perf extended its perf.data output format, and quipper cannot parse
any of the extensions, so it just bombs out with assertation
failures.

I have a patch to hack around some of this, but still
couldn't get it actually to work so far.

-Andi
-- 
ak@linux.intel.com -- Speaking for myself only.