Re: [QUERY] Why does perf-trace need me to be root?

From: Ramkumar Ramachandra
Date: Thu Oct 03 2013 - 03:21:34 EST


Ingo Molnar wrote:
> echo 'kernel.perf_event_paranoid = -1' >> /etc/sysctl.conf

Thanks Ingo. It's called /etc/sysctl.d/* now:
https://www.archlinux.org/news/deprecation-of-etcsysctlconf/

> The current output:
>
> comet:~/tip> perf trace
> Couldn't read the raw_syscalls tracepoints information!
>
> is as hostile to the user as it gets ;-)

Patches are on the way :)
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