On Fri, Aug 30, 2013 at 9:41 PM, Julian Seward <jsew...@acm.org> wrote:

> That said, AFAICS the core problem is that once a thread blocks and we drop
> the sampling rate, we have no obvious (direct, notification-based) way to
> know when it has resumed, and hence are in danger of losing high-frequency
> samples in gap between when it really resumed and when we (later) notice
> that it has.
>

There's ptrace, but that sucks in various ways :-).

Rob
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