On Wed, Aug 17, 2016 at 5:20 PM, Andres Freund <andres@anarazel.de> wrote:
> libc isn't compiled with -fno-omit-frame-pointer (and even if, it uses
> assembly without setup of the frame pointer), so frame pointer based
> call graphs are wrong through libc. The attributions are based on
> random stuff in the frame pointer at that point. You either need to use
> dwarf or lbr to get accurate ones.
Is it worth doing that here, and redoing the test, so that the glibc
attributions are correct?
--
Peter Geoghegan