Re: [PATCH v1 4/6] perf: Allow using AUX data in perf samples

From: Alexander Shishkin
Date: Thu Sep 26 2019 - 08:04:48 EST


Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx> writes:

> Peter Zijlstra <peterz@xxxxxxxxxxxxx> writes:
>
>> On Tue, Jun 19, 2018 at 01:47:25PM +0300, Alexander Shishkin wrote:
>>> Right, the SW stuff may then race with event_function_call() stuff. Hmm.
>>> For the HW stuff, I'm hoping that some kind of a sleight of hand may
>>> suffice. Let me think some more.
>>
>> I currently don't see how the SW driven snapshot can ever work, see my
>> comment on the last patch.
>
> Yes, this should be solved by grouping, similarly PEBS->PT.

Peter, do you have any thoughts/suggestions as to this RFC? Thanks!

Regards,
--
Alex