linux-kernel - Re: [PATCH] perf stat: Print topology/time headers with --metric-only

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Date:	Fri, 20 May 2016 17:47:38 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Andi Kleen <ak@...ux.intel.com>
Cc:	Andi Kleen <andi@...stfloor.org>, acme@...nel.org,
	jolsa@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf stat: Print topology/time headers with --metric-only

On Fri, May 20, 2016 at 08:43:19AM -0700, Andi Kleen wrote:
> > hum, I'm getting something else:
> > 
> > [jolsa@...-x3650m4-01 perf]$ sudo ./perf stat --topdown -I 1000 -a
> > nmi_watchdog enabled with topdown. May give wrong results.
> > Disable with echo 0 > /proc/sys/kernel/nmi_watchdog
> > #           time core         cpus
> >      1.001710838                   retiring             bad speculation      frontend bound       backend bound        
> >      1.001710838 S0-C0           2     38.1%               -0.0%               58.8%                3.1%           
> >      1.001710838 S0-C1           2     38.0%                0.0%               59.4%                2.5%           
> > 
> > 
> > [jolsa@...-x3650m4-01 perf]$ sudo ./perf stat --metric-only -e cycles,instructions -a -I 1000
> > #           time
> >      1.000756338 insn per cycle       stalled cycles per insn 
> >      1.000756338    0.32                                      
> >      2.001155562    0.30                                      
> 
> Right sorry, that was me not cutting and pasting correctly.
> 
> Your output is correct and intended. 

hum, I dont think so.. headers should be on the same line, right?

jirka