Date: Tue, 27 Aug 2013 14:27:21 +0200
From: Robert Richter <rric@kernel.org>
To: Borislav Petkov <bp@alien8.de>
Cc: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@kernel.org>,
        Arnaldo Carvalho de Melo <acme@infradead.org>,
        Jiri Olsa <jolsa@redhat.com>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 00/12] perf, persistent: Add persistent events
Message-ID: <20130827122721.GF15884@rric.localhost>
References: <1377180807-12758-1-git-send-email-rric@kernel.org>
 <20130824093826.GB28383@pd.tnic>
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On 24.08.13 11:38:26, Borislav Petkov wrote:
> this text is very nicely written and should be in a README somewhere.
> :-)

Yeah, will put it under tools/perf/Documentation/...

> > There are ioctl functions to control persistent events that can be
> > used to detach or attach an event to or from a process. The
> > PERF_EVENT_IOC_DETACH ioctl call makes an event persistent.
> 
> Yeah, we probably want to abstract this a step further by allowing
> to attach/detach fds to/from events. Then "persistent" is only one
> incarnation of us always detaching from the event during its lifetime.
> 
> If we close an event while it is attached, it gets destroyed - i.e.,
> current functionality, etc. See the other thread.

I don't know what you mean here exactly, please explain.

> But we probably need more input on this from people. Ingo, Peter?

Yes, that would be great.

Thanks,

-Robert
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