From: Andi Kleen <andi@firstfloor.org>
To: Joshua Pincus <joshua.pincus@gmail.com>
Cc: Andi Kleen <andi@firstfloor.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
"K.Prasad" <prasad@linux.vnet.ibm.com>,
peterz@infradead.org, paulus@samba.org, acme@redhat.com,
linux-kernel@vger.kernel.org
Subject: Re: HW breakpoints perf_events request
Date: Thu, 14 Jan 2010 10:23:50 +0100 [thread overview]
Message-ID: <20100114092350.GF12241@basil.fritz.box> (raw)
In-Reply-To: <bc915a051001131821x6cdd3470lf72e8c02a897ea3@mail.gmail.com>
> We would like to avoid using ptrace at all costs.
> It requires us to have a parent thread running
> which monitors all the others. It'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?
-Andi
next prev parent reply other threads:[~2010-01-14 9:23 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-14 1:45 HW breakpoints perf_events request Joshua Pincus
2010-01-14 2:15 ` Andi Kleen
2010-01-14 2:21 ` Joshua Pincus
2010-01-14 9:23 ` Andi Kleen [this message]
2010-01-14 18:03 ` Joshua Pincus
2010-01-18 11:04 ` Frederic Weisbecker
2010-01-18 11:35 ` Andi Kleen
2010-01-19 14:40 ` Frederic Weisbecker
2010-01-18 16:33 ` Frank Ch. Eigler
2010-01-19 14:50 ` Frederic Weisbecker
2010-01-19 15:12 ` Frank Ch. Eigler
2010-01-19 16:21 ` Frederic Weisbecker
2010-01-19 16:26 ` Peter Zijlstra
2010-01-19 17:44 ` Frank Ch. Eigler
2010-01-14 5:10 ` Frederic Weisbecker
2010-01-14 8:44 ` Peter Zijlstra
2010-01-14 18:02 ` Joshua Pincus
2010-01-18 17:45 ` K.Prasad
2010-01-19 14:53 ` Frederic Weisbecker
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