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

From	Adrian Hunter <adrian.hunter@intel.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH V2 00/37] perf intel-pt: Power events and PTWRITE
Date	2017-06-21 12:30 +0200
Message-ID	<tUL3z-4SB-3@gated-at.bofh.it> (permalink)
References	<tLiNb-3tM-9@gated-at.bofh.it> <tRxqa-2AI-17@gated-at.bofh.it> <tRy2R-2NA-11@gated-at.bofh.it>
Organization	Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki

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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.

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Re: [PATCH V2 00/37] perf intel-pt: Power events and PTWRITE Adrian Hunter <adrian.hunter@intel.com> - 2017-06-21 12:30 +0200
  Re: [PATCH V2 00/37] perf intel-pt: Power events and PTWRITE Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-06-21 15:50 +0200

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