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

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Date:	Tue, 5 Jan 2016 22:05:01 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	acme@...nel.org, jolsa@...nel.org, mingo@...nel.org,
	linux-kernel@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH] perf, tools, stat: Force C numeric locale for CSV mode

On Tue, Jan 05, 2016 at 11:17:45AM -0800, Andi Kleen wrote:
> From: Andi Kleen <ak@...ux.intel.com>
> 
> 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@...ux.intel.com>

Acked-by: Jiri Olsa <jolsa@...nel.org>

thanks,
jirka
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