linux-kernel - Re: [PATCH v2 4/5] perf record: add meta-data support for pipe-mode

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Date:	Fri, 18 May 2012 10:50:45 -0600
From:	David Ahern <dsahern@...il.com>
To:	Stephane Eranian <eranian@...gle.com>, acme@...hat.com
CC:	linux-kernel@...r.kernel.org, peterz@...radead.org, mingo@...e.hu
Subject: Re: [PATCH v2 4/5] perf record: add meta-data support for pipe-mode

On 5/16/12 1:41 AM, Stephane Eranian wrote:
> On Wed, May 16, 2012 at 5:34 AM, David Ahern<dsahern@...il.com>  wrote:
>> I love the feature and it works nicely, but there has been push back on
>> adding more synthesized events.  Also the size of the patch is a bit much to
>> take in. If there is no objection to the synthesized can you break the patch
>> up -- e.g., introduce the events in one, synthesis and processing functions
>> in another, plug into the commands, ...
>>
> Without new synthesized events, you cannot make this work. This is by
> construction
> of the pipe mode. Meta-data has be be injected in the stream and
> therefore it needs
> PERF_RECORD_* types.

Understood. I don't object to synthesized events.

Arnaldo: preferences?

David
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