Hello,

On Fri, Aug 25, 2023 at 10:07:28AM -0700, Namhyung Kim wrote:

Hello,

On Thu, Aug 24, 2023 at 11:11 PM Aditya Gupta [off-list ref] wrote:

quoted

<...>

Proposed solution
=================

As suggested by contributors in:
https://lore.kernel.org/linux-perf-users/ZMPWk5K63tadmDlU@kernel.org/ (local)

Introduce a subcommand "perf build --has", with which
scripts can test for presence of a feature, such as:

    perf build --has HAVE_FEATURE

<...>

I'm not sure 'perf build' is a good name, it sounds like it needs to build
something.  Maybe 'perf check --feature XXX' ?

Then we can extend the perf check command to *check* system
settings like perf_event_paranoid, kptr_restrict, nmi_watchdog
and so on, and possibly provides some advice or even change
the values easily.

What do you think?

Sure, the said confusion due to 'build' makes sense. I will discuss with athira
also and post a V2 with suggested change.

And, since a new subcommand is being introduced, where do I add a
documentation, such that it can be visible in a manpage etc, similar to
perf-version(1) ?

Thanks,
Aditya Gupta