From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jiri Olsa <jolsa@redhat.com>
Subject: Re: [PATCH v9 4/4] perf tools: add support for libpfm4
Date: Thu, 16 Apr 2020 11:55:01 +0200
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 <20200416063551.47637-5-irogers@google.com>
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To: Ian Rogers <irogers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, Arnaldo Carvalho de Melo <acme@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Namhyung Kim <namhyung@kernel.org>, Alexei Starovoitov <ast@kernel.org>, Daniel Borkmann <daniel@iogearbox.net>, Martin KaFai Lau <kafai@fb.com>, Yonghong Song <yhs@fb.com>, Andrii Nakryiko <andriin@fb.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Thomas Gleixner <tglx@linutronix.de>, Igor Lubashev <ilubashe@akamai.com>, Alexey Budankov <alexey.budankov@linux.intel.com>, Florian Fainelli <f.fainelli@gmail.com>, Adrian Hunter <adrian.hunter@intel.com>, Andi Kleen <ak@linux.intel.com>, Jiwei Sun <jiwei.sun@windriver.com>, yuzhouji
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On Wed, Apr 15, 2020 at 11:35:51PM -0700, Ian Rogers wrote:
> From: Stephane Eranian <eranian@google.com>
> 
> This patch links perf with the libpfm4 library if it is available
> and NO_LIBPFM4 isn't passed to the build. The libpfm4 library
> contains hardware event tables for all processors supported by
> perf_events. It is a helper library that helps convert from a
> symbolic event name to the event encoding required by the
> underlying kernel interface. This library is open-source and
> available from: http://perfmon2.sf.net.
> 
> With this patch, it is possible to specify full hardware events
> by name. Hardware filters are also supported. Events must be
> specified via the --pfm-events and not -e option. Both options
> are active at the same time and it is possible to mix and match:
> 
> $ perf stat --pfm-events inst_retired:any_p:c=1:i -e cycles ....
> 
> Signed-off-by: Stephane Eranian <eranian@google.com>
> Reviewed-by: Ian Rogers <irogers@google.com>

	# perf list
	...
	perf_raw pfm-events
	  r0000
	    [perf_events raw event syntax: r[0-9a-fA-F]+]

	skl pfm-events
	  UNHALTED_CORE_CYCLES
	    [Count core clock cycles whenever the clock signal on the specific core is running (not halted)]
	  UNHALTED_REFERENCE_CYCLES

please add ':' behind the '* pfm-events' label

jirka