Re: [RFC PATCH] perf: Provide status of known PMUs

From	Peter Zijlstra <peterz@infradead.org>
Newsgroups	linux.kernel
Subject	Re: [RFC PATCH] perf: Provide status of known PMUs
Date	2015-07-09 14:50 +0200
Message-ID	<pKjr4-dD-17@gated-at.bofh.it> (permalink)
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On Thu, Jul 09, 2015 at 02:32:05PM +0200, Ingo Molnar wrote:
> 
>    perf record error: The 'bts' PMU is not available, because the CPU does not support it

This one makes sense.

>    perf record error: The 'bts' PMU is not available, because this architecture does not support it
>    perf record error: The 'bts' PMU is not available, because its driver is not built into the kernel
> 
> Because if it's the wrong architecture or CPU, I look for a box with the right 
> one, if it's simply the kernel not having the necessary PMU driver then I'll boot 
> a kernel with it enabled.

These not so much; why won't a generic: "Unknown PMU, check arch/kernel"
do?

The thing is, I hate that hard-coded list, its pain I don't need.
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Thread

[RFC PATCH] perf: Provide status of known PMUs Adrian Hunter <adrian.hunter@intel.com> - 2015-07-09 10:00 +0200
  Re: [RFC PATCH] perf: Provide status of known PMUs Ingo Molnar <mingo@kernel.org> - 2015-07-09 10:20 +0200
    Re: [RFC PATCH] perf: Provide status of known PMUs Adrian Hunter <adrian.hunter@intel.com> - 2015-07-09 10:50 +0200
  Re: [RFC PATCH] perf: Provide status of known PMUs Peter Zijlstra <peterz@infradead.org> - 2015-07-09 11:00 +0200
    Re: [RFC PATCH] perf: Provide status of known PMUs Peter Zijlstra <peterz@infradead.org> - 2015-07-09 13:50 +0200
    Re: [RFC PATCH] perf: Provide status of known PMUs Peter Zijlstra <peterz@infradead.org> - 2015-07-09 14:10 +0200
      Re: [RFC PATCH] perf: Provide status of known PMUs Ingo Molnar <mingo@kernel.org> - 2015-07-09 14:40 +0200
        Re: [RFC PATCH] perf: Provide status of known PMUs Peter Zijlstra <peterz@infradead.org> - 2015-07-09 14:50 +0200
          Re: [RFC PATCH] perf: Provide status of known PMUs Ingo Molnar <mingo@kernel.org> - 2015-07-10 10:40 +0200

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