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Date:   Tue, 10 Mar 2020 12:59:15 -0700
From:   Andi Kleen <>
To:     Ian Rogers <>
Cc:     Peter Zijlstra <>,
        Ingo Molnar <>,
        Arnaldo Carvalho de Melo <>,
        Mark Rutland <>,
        Alexander Shishkin <>,
        Jiri Olsa <>,
        Namhyung Kim <>,
        Alexei Starovoitov <>,
        Daniel Borkmann <>,
        Martin KaFai Lau <>, Yonghong Song <>,
        Andrii Nakryiko <>,
        Greg Kroah-Hartman <>,
        Thomas Gleixner <>,
        Igor Lubashev <>,
        Alexey Budankov <>,
        Florian Fainelli <>,
        Adrian Hunter <>,
        Jiwei Sun <>,
        yuzhoujian <>,
        Kan Liang <>,
        Jin Yao <>,
        Leo Yan <>,
        John Garry <>,,,,,
        Stephane Eranian <>
Subject: Re: [PATCH] perf tools: add support for lipfm4

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:

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.


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