Re: [PATCH] perf, tools, stat: Force C numeric locale for CSV mode

From: Jiri Olsa
Date: Tue Jan 05 2016 - 16:05:16 EST


On Tue, Jan 05, 2016 at 11:17:45AM -0800, Andi Kleen wrote:
> From: Andi Kleen <ak@xxxxxxxxxxxxxxx>
>
> Some locales print floating point numbers with a comma instead of a dot.
> This causes problems with CSV mode because it causes extra false CSV
> fields. Force the numeric locale to be always C in CSV mode.
>
> Before:
>
> $ LC_ALL=pl_PL.utf8 perf stat -x, true
> 0,399472,,task-clock,399472,100,00 <---- extra bogus field
> ...
>
> After:
> $ LC_ALL=pl_PL.utf8 ./obj-perf/perf stat -x, true
> 0.338422,,task-clock,338422,100.00
>
> Originally reported in https://github.com/andikleen/pmu-tools/issues/43
>
> Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>

Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>

thanks,
jirka
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