> > 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 -- a...@linux.intel.com -- Speaking for myself only.
