In that case, we should get quipper fixed upstream to accommodate new format. (Maybe they already fixed it, I will do a batch sync to make quipper up-to-date).
Dehao On Tue, Apr 21, 2015 at 10:24 AM, Andi Kleen <a...@firstfloor.org> wrote: >> > 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.
