linux-kernel - Re: [PATCH 05/11] perf, tools: Add support for reading JSON event files

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Message-ID: <1405661382.17297.3.camel@concordia>
Date:	Fri, 18 Jul 2014 15:29:42 +1000
From:	Michael Ellerman <mpe@...erman.id.au>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	jolsa@...hat.com, linux-kernel@...r.kernel.org,
	namhyung@...nel.org, acme@...radead.org,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 05/11] perf, tools: Add support for reading JSON event
 files

On Fri, 2014-07-11 at 16:59 -0700, Andi Kleen wrote:
> From: Andi Kleen <ak@...ux.intel.com>
> 
> Add a parser for Intel style JSON event files. This allows
> to use an Intel event list directly with perf. The Intel
> event lists can be quite large and are too big to store
> in unswappable kernel memory.

...

> diff --git a/tools/perf/util/jevents.c b/tools/perf/util/jevents.c
> new file mode 100644
> index 0000000..a23f57f
> --- /dev/null
> +++ b/tools/perf/util/jevents.c
> @@ -0,0 +1,246 @@
...
> +
> +static void fixname(char *s)
> +{
> +	for (; *s; s++)
> +		*s = tolower(*s);
> +}

On powerpc our event names are always uppercase, it would be nice if the perf
list output honoured that.

Can we instead just honour whatever case is in the input JSON ?

It looks like the event lookup is already case insensitive.

cheers


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