Re: [RFC PATCH 3/8] perf: Init/fini PMU specific data

[Alexey Budankov]

On 02.12.2019 17:59, Andi Kleen wrote:
>>
>> This is atricous crap. Also it is completely broken for -RT.
> 
> Well can you please suggest how you would implement it instead?

FWIW,
An alternative could probably be to make task_ctx_data allocations
on the nearest context switch in, and obvious drawback is slowdown on
this critical path, but it could be amortized by static branches.

Thanks,
Alexey