This problem affects me too (on Xenial):
> uname -a Linux Nyx 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
> perf --version perf version 4.4.6
Adding --call-graph dwarf doesn't change that the symbols aren't demangled.
This problem affects me too (on Xenial):
> uname -a
Linux Nyx 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
> perf --version
perf version 4.4.6
Adding --call-graph dwarf doesn't change that the symbols aren't demangled.