linux-kernel - Re: [PATCH 7/8] perf: Add a perf record --timechart option

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Date:	Sat, 19 Sep 2009 11:44:52 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org, fweisbec@...il.com
Subject: Re: [PATCH 7/8] perf: Add a perf record --timechart option


* Arjan van de Ven <arjan@...radead.org> wrote:

> On Mon, 14 Sep 2009 10:06:00 +0200
> Peter Zijlstra <peterz@...radead.org> wrote:
> 
> > On Sat, 2009-09-12 at 13:06 +0200, Arjan van de Ven wrote:
> > > This patch adds a "perf record --timechart" option, to make it easy
> > > to capture traces for use by the timechart tool.
> > 
> > Would it perhaps make sense to make that:
> > 
> >  perf timechart record
> 
> well yes, but it would just be an alias for the former, since it's the 
> record code that has to do the recording... and that's a rather 
> obscene layering violation in how perf is set up I think.

No, please do it like 'perf sched record' does - it constructs an 
argument list of pre-cooked options. See builtin-sched.c's record_args[] 
array.

	Ingo
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