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    SubjectRe: [RFC/PATCHSET 00/14] perf report: Add support to accumulate hist periods (v2)
    On Thu, Oct 31, 2013 at 09:09:32AM +0100, Ingo Molnar wrote:
    >
    >
    > * Namhyung Kim <namhyung@kernel.org> wrote:
    >
    > > When the -g cumulative option is given, it'll be shown like this:
    > >
    > > $ perf report -g cumulative --stdio
    > >
    > > # Overhead Overhead (Acc) Command Shared Object Symbol
    > > # ........ .............. ....... ................. .......................
    > > #
    > > 0.00% 88.29% abc libc-2.17.so [.] __libc_start_main
    > > 0.00% 88.29% abc abc [.] main
    > > 0.00% 88.29% abc abc [.] c
    > > 0.00% 88.29% abc abc [.] b
    > > 88.29% 88.29% abc abc [.] a
    > > 0.00% 11.61% abc ld-2.17.so [k] _dl_sysdep_start
    > > 0.00% 9.43% abc ld-2.17.so [.] dl_main
    > > 9.43% 9.43% abc ld-2.17.so [.] _dl_relocate_object
    > > 2.27% 2.27% abc [kernel.kallsyms] [k] page_fault
    > > 0.00% 2.18% abc ld-2.17.so [k] _dl_start_user
    > > 0.00% 0.10% abc ld-2.17.so [.] _start
    > >
    > > As you can see __libc_start_main -> main -> c -> b -> a callchain
    > > show up in the output.
    >
    > This looks really useful!
    >
    > A couple of details:
    >
    > 1)
    >
    > This is pretty close to SysProf output, right? So why not use the
    > well-known SysProf naming and call the first column 'self' and the
    > second column 'total'? I think those names are pretty intuitive and
    > it would help people who come from SysProf over to perf.

    Makes sense. Or "Overhead" and "Total overhead"?


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