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    SubjectRe: [PATCH 1/7] perf: introduce raw_type attribute to specify the type of a raw sample

    * Corey Ashford <cjashfor@linux.vnet.ibm.com> wrote:

    > [...]
    >
    > Have you looked at Lin Ming's patch series? I think it
    > offers another way to support IBS and other
    > arch-specific and off-chip PMUs in a more general way,
    > though it's not quite fully-baked yet.

    Robert, check out this thread on lkml:

    [RFC][PATCH v2 06/11] perf: core, export pmus via sysfs

    Here is Peter's post that describes the high level design:

    http://groups.google.com/group/linux.kernel/msg/ab9aa075016c639e

    And please help out Lin Ming with this work - we dont want
    to add new, special-purpose ABI extensions for enumeration
    purposes, it should be introduced using a new event_source
    node via the sysfs enumeration.

    Whether IBS fits that category is an open question -
    ideally it should have similar high level usage as the
    PEBS/LBR bits on Intel CPUs. (at least as far as tooling
    goes)

    Thanks,

    Ingo


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