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Date:   Tue, 10 Mar 2020 12:59:15 -0700
From:   Andi Kleen <ak@linux.intel.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>,
        Jiri Olsa <jolsa@redhat.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>,
        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] perf tools: add support for lipfm4
Message-ID: <20200310195915.GA1676879@tassilo.jf.intel.com>
References: <20200310185003.57344-1-irogers@google.com>
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On Tue, Mar 10, 2020 at 11:50:03AM -0700, Ian Rogers wrote:
> This patch links perf with the libpfm4 library.
> This library contains all the hardware event tables for all
> processors supported by perf_events. This is a helper library
> that help 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.

For most CPUs the builtin perf JSON event support should make
this redundant.

Perhaps you could list what CPUs it actually supports over
the existing JSON tables.

If it's only a few it would be likely better to add
appropiate json files.

If it's a massive number it might be useful, although
JSON support would be better for those too.

-Andi