Re: [PATCH V2 00/37] perf intel-pt: Power events and PTWRITE

Adrian Hunter
2017-06-21T10:26:59Z

On 12/06/17 16:56, Arnaldo Carvalho de Melo wrote:
> Em Mon, Jun 12, 2017 at 04:04:44PM +0300, Adrian Hunter escreveu:
>> On 26/05/17 11:17, Adrian Hunter wrote:
>>> Hi
>>>
>>> Here are some patches to support Intel PT Power events and PTWRITE.
>>> Power events report changes to C-state but I have also added support
>>> for the existing CBR (core-to-bus ratio) packet and included that
>>> when outputting power events. The PTWRITE packet is associated with
>>> the new ptwrite instruction, which is essentially just a way to stuff
>>> a 32 or 64 bit value into the PT trace. More details can be found in
>>> the patches that add documentation and in the Intel SDM.
>>>
>>> As far as I know, there isn't any hardware released that supports
>>> the new packets, however the CBR packet is not new and will now be
>>> visible by default.
>>>
>>> There are also some miscellaneous improvements to Intel PT.
>>>
>>> There are 3 patches that introduce a new way to define synthesized
>>> events that carry arbitrary raw_data. I sent an RFC about that earlier.
>>> The 3 patches are:
>>> perf script: Add 'synth' event type for synthesized events
>>> perf script: Add 'synth' field for synthesized event payloads
>>> perf script: Add synthesized Intel PT power and ptwrite events
>>>
>>>
>>> Changes in V2:
>>>
>>> Reorder patches and add stable tags to fixes.
>>>
>>
>> Apart from "perf script: Add 'synth' event type for synthesized events"
>> patches still apply. Any comments?
>
> I'll look at it today,

I have sent V3 of two patches that did not now apply cleanly.