Hi Julian
Below is my test.
tacy@tacy:~$ sudo perf record --call-graph dwarf -a
callchain: Unknown --call-graph option value: dwarf
usage: perf record [] []
or: perf record [] -- []
--call-graph
setup and enables call-graph (stack chain/backtrace
Presics + trusty lts kernel (3.13.0-27)
~$ sudo perf record -g dwarf -a
dwarf: No such file or directory
strace output:
11268 10647 execve("/usr/local/sbin/dwarf", ["dwarf", "-a"], [/* 28 vars */]) =
-1 ENOENT (No such file or directory)
11269 10647 execve("/usr/local/bin/dwarf", ["dwarf", "-a"
