From: Jiri Olsa <jolsa@redhat.com>
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>,
yuzhoujian <yuzhoujian@didichuxing.com>,
Kan Liang <kan.liang@linux.intel.com>,
Jin Yao <yao.jin@linux.intel.com>, Leo Yan <leo.yan@linaro.org>,
John Garry <john.garry@huawei.com>,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
bpf@vger.kernel.org, linux-perf-users@vger.kernel.org,
Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH v3] perf tools: add support for libpfm4
Date: Wed, 18 Mar 2020 11:22:54 +0100 [thread overview]
Message-ID: <20200318102254.GC821557@krava> (raw)
In-Reply-To: <20200311213613.210749-1-irogers@google.com>
On Wed, Mar 11, 2020 at 02:36:13PM -0700, Ian Rogers wrote:
> 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 ....
>
> v3 is against acme/perf/core removes a diagnostic warning
> v2 of this patch makes the --pfm-events man page documentation
> conditional on libpfm4 behing configured. It tidies some of the
> documentation and adds the feature test missed in the v1 patch.
>
> Author: Stephane Eranian <eranian@google.com>
> Signed-off-by: Ian Rogers <irogers@google.com>
hi,
is this the latest version? I can't apply it on Arnaldo's perf/core
jirka
WARNING: multiple messages have this Message-ID (diff)
From: Jiri Olsa <jolsa@redhat.com>
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
Subject: Re: [PATCH v3] perf tools: add support for libpfm4
Date: Wed, 18 Mar 2020 11:22:54 +0100 [thread overview]
Message-ID: <20200318102254.GC821557@krava> (raw)
In-Reply-To: <20200311213613.210749-1-irogers@google.com>
On Wed, Mar 11, 2020 at 02:36:13PM -0700, Ian Rogers wrote:
> 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 ....
>
> v3 is against acme/perf/core removes a diagnostic warning
> v2 of this patch makes the --pfm-events man page documentation
> conditional on libpfm4 behing configured. It tidies some of the
> documentation and adds the feature test missed in the v1 patch.
>
> Author: Stephane Eranian <eranian@google.com>
> Signed-off-by: Ian Rogers <irogers@google.com>
hi,
is this the latest version? I can't apply it on Arnaldo's perf/core
jirka
next prev parent reply other threads:[~2020-03-18 10:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-11 21:36 [PATCH v3] perf tools: add support for libpfm4 Ian Rogers
2020-03-18 10:22 ` Jiri Olsa [this message]
2020-03-18 10:22 ` Jiri Olsa
2020-03-19 4:15 ` Ian Rogers
2020-03-19 4:15 ` Ian Rogers
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