linux-kernel - Re: [PATCH 01/16] perf tools: Add id index

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Message-ID: <8738aedpdb.fsf@sejong.aot.lge.com>
Date:	Fri, 24 Oct 2014 14:10:40 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	Adrian Hunter <adrian.hunter@...el.com>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org, David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Paul Mackerras <paulus@...ba.org>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 01/16] perf tools: Add id index

On Thu, 23 Oct 2014 18:08:17 -0300, Arnaldo Carvalho de Melo wrote:
> Em Thu, Oct 23, 2014 at 01:45:09PM +0300, Adrian Hunter escreveu:
>> Add an index of the event identifiers.
>> 
>> This is needed to queue Instruction
>> Trace samples according to the mmap
>> buffer from which they were recorded.
>
> This gets difficult to review, I end up having to look at all the
> patches together to figure out the use cases, to see if this here makes
> sense...
>
> Can you try to explain like to a seven year old?
>
> Sigh.
>
> 'id' is somethig super vague, what does this identifies? I want to make
> progress processing these patches, but with so short explanations like
> the above one, it gets difficult.

I also often get confused when I saw an id and/or idx. ;-)

Thanks,
Namhyung
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