Re: [PATCH 2/9] perf, tools, stat: Support up-scaling of events

From: Jiri Olsa
Date: Tue Aug 11 2015 - 13:13:52 EST

On Tue, Aug 11, 2015 at 07:00:37PM +0200, Andi Kleen wrote:
> > how about existing scale attributes, like in rapl code
> I'm using the existing scale attribute, but I need a multiplication,
> not a division. That is why negative scale was redefined to mean
> multiplication.

your new perf tool code (perf/top-down-2 branch) over the rapl counter:

[root@krava perf]# ./perf stat -e 'power/energy-cores/' -I 1000 -a
# time counts unit events
1.000096151 21606019212309954560.00 Joules power/energy-cores/
2.000284710 3411476717733150720.00 Joules power/energy-cores/
3.000455216 12621337955705815040.00 Joules power/energy-cores/
4.000543075 6444651066767179776.00 Joules power/energy-cores/
^C 4.144246923 1705738358866575360.00 Joules power/energy-cores/

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