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View current kernel parameters?

I saw in my syslog kernel.perf_event_max_sample_rate get changed. I was wondering if I could write a quick script to log this variable every few minutes. Currently it is: sysctl -a | grep kernel....
24
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1answer
17k views

Do I need root (admin) permissions to run userspace 'perf' tool? (perf events are enabled in Linux kernel)

Do I need to have to run perf userspace tool as system administrator (root), or can I run it (or at least some subcommands) as an ordinary user?
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How to check that perf events are enabled in Linux kernel, and how to install perf userland as non-root?

From what I have checked it looks like kernel side of 'perf' subsystem is enabled on computer I work on. Checking kernel configuration shows the following $ zgrep "_PERF[_= ]" /proc/config.gz ...