Re: HW breakpoints perf_events request

From: Joshua Pincus
Date: Thu Jan 14 2010 - 13:03:33 EST


On Thu, Jan 14, 2010 at 1:23 AM, Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:
>> We would like to avoid using ptrace at all costs.
>> It requires us to have a parent thread running
>> which monitors all the others. ÂIt's not clear that
>> the wait() call by the parent doesn't mask a barrage
>> of signals from various threads and the performance
> mask? It'll report them. You expect to have so
> many signals that this would be a problem?

Yes. We expect to see a zillion of them.

> -Andi

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