linux-kernel - Re: [PATCHSET 0/7] perf tools: A couple of TUI improvements (v2)

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Date:	Mon, 23 Dec 2013 14:06:11 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	Jiri Olsa <jolsa@...hat.com>, David Ahern <dsahern@...il.com>
Subject: Re: [PATCHSET 0/7] perf tools: A couple of TUI improvements (v2)


* Namhyung Kim <namhyung@...nel.org> wrote:

> >  - it would be nice to have a hotkey to start/stop data collection on
> >    demand, and another hotkey to reset the data. SysProf has this 
> >    feature, and it's a convenient workflow to have a separate 'data 
> >    collection' period (possibly done without any screen refresh, so 
> >    that data collection does not disturb the measured workload), and 
> >    a quiet 'look at all the data that is not being changed' period. 
> >    Especially with fast changing workloads the latter can be useful.
> 
> I'm not sure I understood correctly.  So do you want start/stop the 
> 'record' part or 'report' part with hotkeys?

The 'record' part - a bit like SysProf.

> >  - it would be nice if 'perf report' had a 'view raw trace' window as 
> >    well, with filtering. That would be roughly equivalent to the 'perf
> >    report -D' output [but one line per trace entry, i.e. no hex dump
> >    shown by default], all available within the TUI. With filtering
> >    that would be a pretty good way to look at various details.
> 
> Do you want something like 'perf script'? :)

Or perf trace, just in a TUI ;-)

Thanks,

	Ingo
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