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    SubjectRe: [RFC/PATCHSET 00/14] perf report: Add support to accumulate hist periods (v2)
    On Mon, Nov 11, 2013 at 02:56:37PM +0100, Ingo Molnar wrote:
    >
    > * Frederic Weisbecker <fweisbec@gmail.com> wrote:
    >
    > > On Mon, Nov 11, 2013 at 01:13:52PM +0100, Ingo Molnar wrote:
    > > >
    > > > It's not an irrelevant feature at all! :-)
    > > >
    > > > It's just that for any sort of longer profile it was pretty
    > > > difficult/frustrating to use, which I think held back adoption.
    > > >
    > > > That performance problem got fixed now by you and Namhyung, so I think
    > > > we'll see even wider adoption of call-graph profiling...
    > >
    > > Ah I see now. At the time Linus reported his issue, I had the feeling
    > > his usecase was a bit "extreme", but I actually have no idea how far
    > > perf can be used given that I'm mostly used to short benchmarks,
    > > typically hackbench, perf bench sched messaging et al. Thing is I don't
    > > use it enough for my real usecases :)
    >
    > Well, it's a bit of a catch-22: if there are severe scalability problems
    > for a usecase then people won't use it because they cannot use it. So
    > developers should usually try to over-measure things and go for extreme
    > uses and such.

    Agreed :)


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