perf_event_paranoid -> 2|3

[pyllyukko]

The value of 3 was introduced in c76a4ca and the source was this[1]. The documentation in the source notes that the value of 3 requires a patch for the Linux kernel. Vanilla kernel has the "maximum" value of 2[2].

[1] https://docs.clip-os.org/clipos/kernel.html#sysctl-security-tuning [2] https://www.kernel.org/doc/html/v5.7/admin-guide/sysctl/kernel.html#perf-event-paranoid