linux-kernel - Re: [PATCH 5/7] perf, tools, stat: Implement --metric-only mode

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Date:	Tue, 1 Mar 2016 19:51:53 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	Andi Kleen <andi@...stfloor.org>, acme@...nel.org,
	jolsa@...nel.org, linux-kernel@...r.kernel.org,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 5/7] perf, tools, stat: Implement --metric-only mode

> > % perf stat -a -I 1000 --metric-only
> >      1.001452803 frontend cycles idle insn per cycle       stalled cycles per insn branch-misses of all branches
> >      1.001452803  158.91%               0.66                2.39                    2.92%
> >      2.002192321  180.63%               0.76                2.08                    2.96%
> >      3.003088282  150.59%               0.62                2.57                    2.84%
> >      4.004369835  196.20%               0.98                1.62                    3.79%
> >      5.005227314  231.98%               0.84                1.90                    4.71%
> 
> could you please align values with the headers

They would align if they had enough leading digits.
perf stat has always right aligned numbers.

Presumably the field sizes could be shrunk, but in some extreme cases
you could still have that many digits. So it's better to keep it as it
is.

-Andi