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    SubjectRe: perf.data file format specification draft
    Em Thu, May 14, 2015 at 10:11:29AM -0300, Arnaldo Carvalho de Melo escreveu:
    > Em Thu, May 14, 2015 at 02:25:17PM +0200, Andi Kleen escreveu:
    > > Hi,
    > >
    > > Since there are more and more consumers I started a description of the
    > > on-disk perf.data format. This does not replace the kernel perf event
    > > description or the manpage, but describes the parts that perf record
    > > adds.
    > >
    > > So far it is still has some gaps and needs review. Eventually this should
    > > become part of the perf documentation.
    > >
    > > Steven, would be good if you could fill in some details on how trace
    > > data works.
    >
    > I guess that would be Frédéric, and also I think this is a good
    > opportunity to remove some stuff that seem to be collected but unused,
    > namely a kallsyms copy and maybe something else.
    >
    > > Adrian, would be good if you could fill in the missing bits for
    > > auxtrace/itrace.
    > > Everyone else, please review and add missing information.
    >
    > Thanks for doing this work!
    >
    > IIRC there is a presentation written by Jiri where parts of this is
    > documented, lemme try to find it...

    http://tracingsummit.org/w/images/9/98/TracingSummit2014-Perf-CTF.pdf

    Look from page 16 on.

    - Arnaldo


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