# prof.h:280: PROF error (Permission denied) - Aborted (core dumped) about prof HOT 3 CLOSED

You might need to tune perf_event_paranoid (source):

Thanks! That's it. Calling my program with sudo also works, but I prefer your suggestion.

Maybe you want to add this information to the your well-written README.

from prof.

Thanks!

You might need to tune perf_event_paranoid (source):

perf_event_paranoid:

Controls use of the performance events system by unprivileged
users (without CAP_SYS_ADMIN).  The default value is 2.

 -1: Allow use of (almost) all events by all users
     Ignore mlock limit after perf_event_mlock_kb without CAP_IPC_LOCK
>=0: Disallow ftrace function tracepoint by users without CAP_SYS_ADMIN
     Disallow raw tracepoint access by users without CAP_SYS_ADMIN
>=1: Disallow CPU event access by users without CAP_SYS_ADMIN
>=2: Disallow kernel profiling by users without CAP_SYS_ADMIN

For example with:

$ echo -1 | sudo tee /proc/sys/kernel/perf_event_paranoid

You can make it permanent with:

$ echo 'kernel.perf_event_paranoid=-1' | sudo tee /etc/sysctl.d/local.conf

Use the most appropriate value for your use case instead of -1.

from prof.

Maybe you want to add this information to the your well-written README.

Good idea, the value of that setting changed in Linux 4.6 so now it's an important thing to know.

from prof.