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    SubjectRe: [ANNOUNCE] New utility: 'trace'

    * Peter Zijlstra <peterz@infradead.org> wrote:

    > On Tue, 2010-11-16 at 22:59 +0100, Ingo Molnar wrote:
    > >
    > >
    > > Would you be interested in helping out with (and testing) such a more generic
    > > approach?
    >
    > how about having perf-record open a named pipe and rewriting everything that comes
    > in through that as an event and storing it in the buffer?

    Yeah, that would work too in most cases - except if there's no VFS connection
    between tracer and tracee. (as it might be in the case of say chroot environments,
    etc.)

    I think it's better to have kernel solutions that dont modify the VFS beyond the
    trace.data session info. A task could thus generate a user-space event without
    having to negotiate with the tracer.

    Thanks,

    Ingo


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