Re: [PATCH 11/11] perf, tools, stat: Add extra output of counter values with -v

From	Arnaldo Carvalho de Melo <acme@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH 11/11] perf, tools, stat: Add extra output of counter values with -v
Date	2016-04-06 17:20 +0200
Message-ID	<rkXpn-5RF-3@gated-at.bofh.it> (permalink)
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Em Wed, Apr 06, 2016 at 08:10:08AM -0700, Andi Kleen escreveu:
> On Wed, Apr 06, 2016 at 11:32:20AM -0300, Arnaldo Carvalho de Melo wrote:
> > Em Mon, Apr 04, 2016 at 01:41:54PM -0700, Andi Kleen escreveu:
> > > From: Andi Kleen <ak@linux.intel.com>
> > > 
> > > Add debug output of raw counter values per CPU when
> > > perf stat -v is specified, together with their cpu numbers.
> > > This is very useful to debug problems with per core counters,
> > > where we can normally only see aggregated values.
> > 
> > Can we do it only when per CPU is in place?
> 
> Even then it is useful because the output is aggregated,
> so we don't know which CPU reported what.
> 
> Can perhaps increase the verbose threshold and only
> print it for -vv or -vvv ?

Yeah, that would be better, this way people will not get two identical
lines for a common usecase when using -v.

- Arnaldo

Thread

[PATCH 11/11] perf, tools, stat: Add extra output of counter values with -v Andi Kleen <andi@firstfloor.org> - 2016-04-04 22:50 +0200
  Re: [PATCH 11/11] perf, tools, stat: Add extra output of counter  values with -v Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-04-06 16:40 +0200
    Re: [PATCH 11/11] perf, tools, stat: Add extra output of counter  values with -v Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-04-06 17:20 +0200
    Re: [PATCH 11/11] perf, tools, stat: Add extra output of counter  values with -v Andi Kleen <andi@firstfloor.org> - 2016-04-06 17:20 +0200

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