* David Ahern <dsah...@gmail.com> wrote:
> On 9/18/13 5:35 AM, Denys Vlasenko wrote:
> >Therefore my question should be restated as:
> >
> >Would perf developers accept the "syscall pausing" feature,
> >or it won't be accepted?
>
> I have been using perf-trace a lot lately specifically because it is
> effectively a 'passive' observer of the task (e.g., time-sensitive tasks
> can be traced with perf but not with strace).
Yes, this is not just an important but a primary design goal for all perf
utilities: if the tracing buffers used are large enough then it should be
a nearly zero-overhead observer that preserves all previous patterns of
behavior as much as possible.
Thanks,
Ingo
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