Re: HW breakpoints perf_events request

[Joshua Pincus]

Hi,

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
>

Thanks,
JP
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/