From: David Ahern <dsahern@gmail.com>
To: Jiri Olsa <jolsa@redhat.com>
Cc: linux-kernel@vger.kernel.org,
Corey Ashford <cjashfor@linux.vnet.ibm.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Ingo Molnar <mingo@elte.hu>, Namhyung Kim <namhyung@kernel.org>,
Paul Mackerras <paulus@samba.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Andi Kleen <ak@linux.intel.com>,
Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH 5/9] perf tools: Set maximum precise value for event 'p' modifier
Date: Thu, 09 May 2013 13:43:52 -0600 [thread overview]
Message-ID: <518BFC78.2000308@gmail.com> (raw)
In-Reply-To: <1368106344-23383-6-git-send-email-jolsa@redhat.com>
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().
David
next prev parent reply other threads:[~2013-05-09 19:43 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-09 13:32 [PATCH 0/9] perf: Adding better precise_ip field handling Jiri Olsa
2013-05-09 13:32 ` [PATCH 1/9] perf x86: Add precise sysfs cpu pmu attribute Jiri Olsa
2013-05-09 13:32 ` [PATCH 2/9] perf tools: Add precise object to interface sysfs precise Jiri Olsa
2013-05-10 1:34 ` Namhyung Kim
2013-05-10 9:06 ` Jiri Olsa
2013-05-09 13:32 ` [PATCH 3/9] perf tests: Add precise event automated test Jiri Olsa
2013-05-09 13:32 ` [PATCH 4/9] perf tools: Add a precise event qualifier Jiri Olsa
2013-05-10 1:43 ` Namhyung Kim
2013-05-10 9:10 ` Jiri Olsa
2013-05-09 13:32 ` [PATCH 5/9] perf tools: Set maximum precise value for event 'p' modifier Jiri Olsa
2013-05-09 19:43 ` David Ahern [this message]
2013-05-10 9:12 ` Jiri Olsa
2013-05-10 1:53 ` Namhyung Kim
2013-05-10 9:16 ` Jiri Olsa
2013-05-09 13:32 ` [PATCH 6/9] perf tools: Set maximum precise value for 'precise' term Jiri Olsa
2013-05-09 13:32 ` [PATCH 7/9] perf tests: Add automated precise term test Jiri Olsa
2013-05-09 13:32 ` [PATCH 8/9] perf: Document the ABI for 'precise' sysfs attribute Jiri Olsa
2013-05-10 1:57 ` Namhyung Kim
2013-05-09 13:32 ` [PATCH 9/9] perf: Document the ABI for 'rdpmc' " Jiri Olsa
2013-05-09 15:07 ` [PATCH 0/9] perf: Adding better precise_ip field handling Peter Zijlstra
2013-05-09 15:20 ` Jiri Olsa
2013-05-10 9:27 ` Peter Zijlstra
2013-05-10 9:40 ` Jiri Olsa
2013-05-10 9:53 ` Peter Zijlstra
2013-05-10 10:18 ` Ingo Molnar
2013-05-10 10:22 ` Peter Zijlstra
2013-05-10 10:31 ` Ingo Molnar
2013-05-10 10:34 ` Peter Zijlstra
2013-05-10 10:55 ` Ingo Molnar
2013-05-10 11:27 ` Peter Zijlstra
2013-05-11 7:50 ` Ingo Molnar
2013-05-13 9:36 ` Peter Zijlstra
2013-05-13 19:43 ` Ingo Molnar
2013-05-14 7:22 ` Peter Zijlstra
2013-05-14 8:37 ` Ingo Molnar
2013-05-14 8:36 ` Gleb Natapov
2013-05-15 13:27 ` Stephane Eranian
2013-05-28 9:54 ` Ingo Molnar
2013-05-10 9:29 ` Peter Zijlstra
2013-05-10 9:43 ` Jiri Olsa
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