linux-kernel - Re: [PATCHv2 00/45] perf stat: Add scripting support

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Date:	Wed, 30 Sep 2015 23:36:15 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	"Liang, Kan" <kan.liang@...el.com>
Cc:	Jiri Olsa <jolsa@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Andi Kleen <andi@...stfloor.org>,
	Ulrich Drepper <drepper@...il.com>,
	Will Deacon <will.deacon@....com>,
	Stephane Eranian <eranian@...gle.com>,
	Don Zickus <dzickus@...hat.com>,
	lkml <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCHv2 00/45] perf stat: Add scripting support

On Wed, Sep 30, 2015 at 09:09:39PM +0000, Liang, Kan wrote:

SNIP

> > instructions:u
> > 
> > - To display different aggregation in report:
> > 
> 
> 
> This one doesn't work well with uncore event.
> 
> sudo ./perf stat -e uncore_imc_1/cas_count_read/ -a --per-socket record 
> -- sleep 5                   
>  Performance counter stats for 'system wide':
> 
> S0        1               0.87 MiB  uncore_imc_1/cas_count_read/
> S1        1               0.41 MiB  uncore_imc_1/cas_count_read/
> 
>        5.000910939 seconds time elapsed
> 
> sudo ./perf stat report --per-socket
> 
>  Performance counter stats for '/home/lk/group_read/test/perf/tools/
> perf/perf stat -e uncore_imc_1/cas_count_read/ -a --per-socket record 
> -- sleep 5':
> 
> S0       36             20,973      uncore_imc_1/cas_count_read/
> S1       28      <not counted>      uncore_imc_1/cas_count_read/

hum, looks like there's some issue with unit/scale handling

I'll address that in next version

thanks for fast feedback,
jirka
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