linux-kernel - Re: [RFC] hotkey for disabling/enabling events in 'perf top' TUI was Re: [GIT PULL 0/8] perf/core improvements and fixes

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Date:	Fri, 19 Jun 2015 17:07:38 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Adrian Hunter <adrian.hunter@...el.com>,
	Borislav Petkov <bp@...e.de>, David Ahern <dsahern@...il.com>,
	Don Zickus <dzickus@...hat.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	He Kuang <hekuang@...wei.com>, Jiri Olsa <jolsa@...hat.com>,
	Li Zhang <zhlcindy@...ux.vnet.ibm.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Naohiro Aota <naota@...sp.net>,
	Peter Zijlstra <peterz@...radead.org>, pi3orama@....com,
	Stephane Eranian <eranian@...gle.com>,
	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
	Wang Nan <wangnan0@...wei.com>, Zefan Li <lizefan@...wei.com>
Subject: Re: [RFC] hotkey for disabling/enabling events in 'perf top' TUI was
 Re: [GIT PULL 0/8] perf/core improvements and fixes

Em Fri, Jun 19, 2015 at 08:27:11AM +0200, Ingo Molnar escreveu:
> * Arnaldo Carvalho de Melo <acme@...nel.org> wrote:
> > Em Thu, Jun 18, 2015 at 10:58:13PM +0200, Ingo Molnar escreveu:
> > > * Arnaldo Carvalho de Melo <acme@...nel.org> wrote:
> > > > z             Toggle zeroing of samples 
> > > > /             Filter symbol by name 

> > > Is 'f' (for 'freeze') still available?

> > It is available in both the 'report'/'top' (aka the "hists" browser) and in the 
> > annotate browser, so I'll go with it, and leave CTRL+z alone, then make it it 
> > suspend.

> Sounds good to me!

I'm fixing these issues now and a mildly crazy idea ocurred to me: now
we can go from 'top' to 'report' and back, but only if we start in
'perf top', but I think we could go from 'perf report' to 'perf top'
mode too, i.e. start with a perf.data file, then enable collecting more
samples that would then be added to the existing histograms, etc.

Unsure if this would be useful tho ;-) Its just that it may be easy to
do and would be another step into having it all integrated.

Anyway, back to work...

- Arnaldo
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