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    SubjectRe: [PATCH 5/5] perf report: Support callchains with relative overhead rate
    On Sun, Jul 05, 2009 at 10:59:49AM +0200, Ingo Molnar wrote:
    >
    > btw., i get some buggy looking output with:
    >
    > $ perf record -f -g ~/hackbench 10
    >
    > $ perf report -c
    >
    >
    > |--5.11%-- unix_stream_sendmsg
    > | |
    > | |--100.00%-- __sock_sendmsg
    > | | sock_aio_write
    > | | do_sync_write
    > | | vfs_write
    > | | sys_write
    > | | sysenter_dispatch
    > | | 0xf7f72430
    > | | 0xffebbca000000014
    > | |
    > | --11.11%-- sock_aio_write
    > | do_sync_write
    > | vfs_write
    > | sys_write
    > | sysenter_dispatch
    > | 0xf7f72430
    > | 0xffebbca000000014
    >
    > Those percentages dont sum up to 100% :-)


    Argh. I can reproduce it, will have a look.


    > Another detail: i think we should signal when we crop the output due
    > to the filter, via a line of:
    >
    > | [...]
    >
    > or so.


    Ok.



    > Plus, when doing 'perf report' on a call-chain recording, shouldnt
    > we auto-detect this fact and default to fractal output
    > automatically, instead of flat mode?
    >
    > User can still force flat mode via 'perf report -c flat'.


    Yeah but the user won't be able to ignore the callchain.
    May be I may add a -c none in this case?



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