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SubjectRe: [PATCH v2 0/3] perf,x86: add Intel RAPL PMU support
From
Andi,

On Wed, Oct 23, 2013 at 9:07 AM, Andi Kleen <ak@linux.intel.com> wrote:
>> # perf stat -a -e power/energy-cores/,power/energy-pkg/,ref-cycles -I
>> 1000 sleep 1000
>> # time unit counts events
>> 1.000264953 Joules 2.09 power/energy-cores/
>> [100.00%]
>> 1.000264953 Joules 5.94 power/energy-pkg/
>> 1.000264953 160,530,320 ref-cycles
>> 2.000640422 Joules 2.07 power/energy-cores/
>> 2.000640422 Joules 5.94 power/energy-pkg/
>> 2.000640422 152,673,056 ref-cycles
>> 3.000964416 Joules 2.08 power/energy-cores/
>> 3.000964416 Joules 5.93 power/energy-pkg/
>> 3.000964416 158,779,184 ref-cycles
>
> Can you add some column marker that there is no unit (like -) ?
>
> This is just in case someone wants to parse this with a tool. Yes they
> should be using -x, but it is still better to be always parseable.
>
It is parseable, it's just that you get an empty field: ,,
But I can add a "?".


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