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

[Peter Zijlstra]

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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