linux-kernel - Re: [PATCH 3/6] perf: add ability to record event period

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Message-ID: <4EEFABD9.9050203@gmail.com>
Date:	Mon, 19 Dec 2011 14:25:45 -0700
From:	David Ahern <dsahern@...il.com>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
CC:	Andrew Vagin <avagin@...il.com>, Andrew Vagin <avagin@...nvz.org>,
	linux-kernel@...r.kernel.org, a.p.zijlstra@...llo.nl,
	paulus@...ba.org, mingo@...e.hu, asharma@...com, devel@...nvz.org,
	linux-perf-users@...r.kernel.org
Subject: Re: [PATCH 3/6] perf: add ability to record event period

On 12/19/2011 01:58 PM, Arnaldo Carvalho de Melo wrote:
> I get that Arun is in agreement, everything seems OK, but we need to do
> a better job on describing why we add code, the context we have now from
> all these discussions will be mostly lost, say, 5 years from now when we
> try to figure out why something was done in some way,

It seems like an option is needed for all the sample attributes.
Timestamp is now covered (-T). Sample address is covered (-d). Callchain
(-g). This targets period (-P). I think that just leaves CPU, and we are
out of c/C options. ;-)

David
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