Re: perf, tools: Refactor and support interval and CSV metrics

From: Andi Kleen
Date: Mon Mar 07 2016 - 13:22:39 EST


On Mon, Mar 07, 2016 at 11:08:42AM +0100, Jiri Olsa wrote:
> On Thu, Mar 03, 2016 at 03:57:31PM -0800, Andi Kleen wrote:
>
> SNIP
>
> >
> > % perf stat -x, --metric-only -a -I 1000
> > 1.001381652,frontend cycles idle,insn per cycle,stalled cycles per insn,branch-misses of all branches,
> > 1.001381652,173.32,0.83,2.09,1.73,
> > 2.002073343,199.47,1.07,1.60,2.14,
> > 3.002875524,109.52,0.22,7.83,1.63,
> > 4.003970059,132.10,0.17,10.85,1.51,
> > 5.004818754,181.60,0.22,8.87,2.22,
> >
> >
> > Available in
> > git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc-2.6 perf/stat-metrics-21
>
> this branch contains old version of:
> perf, tools, stat: Add --metric-only support for -A

Old in what way? Looks correct to me.


commit e26ba80593023c24c8276ad9853acd7e56ca92ed
Author: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Date: Sat Dec 19 11:22:55 2015 -0800

perf, tools, stat: Add --metric-only support for -A

Add metric only support for -A too. This requires a new print
function that prints the metrics in the right order.

v2: Fix manpage
v3: Simplify nrcpus computation
Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>