Date: Wed, 23 Oct 2013 00:07:48 -0700
From: Andi Kleen <ak@linux.intel.com>
To: Stephane Eranian <eranian@google.com>
Cc: Ingo Molnar <mingo@kernel.org>, Arnaldo Carvalho de Melo <acme@redhat.com>,
        Borislav Petkov <bp@alien8.de>, LKML <linux-kernel@vger.kernel.org>,
        Peter Zijlstra <peterz@infradead.org>, "mingo@elte.hu" <mingo@elte.hu>,
        Jiri Olsa <jolsa@redhat.com>, "Yan, Zheng" <zheng.z.yan@intel.com>
Subject: Re: [PATCH v2 0/3] perf,x86: add Intel RAPL PMU support
Message-ID: <20131023070748.GB7756@tassilo.jf.intel.com>
References: <1381416608-2741-1-git-send-email-eranian@google.com>
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 <20131016124627.GA2611@gmail.com>
 <CABPqkBRQcisi8ukhD=6fKMq+iqwM+Qgxd3=jo82EUJB5coXs1A@mail.gmail.com>
 <20131016175302.GB4100@infradead.org>
 <CABPqkBSs1YwTiy_nkyXc89vg8-Tg=ONqCk930A+ksoLKsGLdHw@mail.gmail.com>
 <20131017081420.GB22705@gmail.com>
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> # 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.

-Andi
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