Re: [PATCH 5/9] perf tools: Set maximum precise value for event 'p'modifier
From: Jiri Olsa
Date: Fri May 10 2013 - 05:14:25 EST
On Thu, May 09, 2013 at 01:43:52PM -0600, David Ahern wrote:
> On 5/9/13 7:32 AM, Jiri Olsa wrote:
> >+static int precise_default(void)
> >+{
> >+ int precise = perf_precise__get();
> >+ static int warned;
> >+
> >+ /*
> >+ * Precise info not supported by by this kernel,
> >+ * set 1 as the precise value.
> >+ */
> >+ if (precise == -1)
> >+ precise = 1;
> >+
> >+ /* PEBS is not supported here, display warning. */
> >+ if (precise == 0 && !warned++)
> >+ pr_warning("warning: no precise support, "
> >+ "using non-precise event(s)\n");
>
> WARN_ONCE().
ah, forgot we have this one ;) thanks
jirka
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