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Date: Tue, 27 Aug 2013 14:27:21 +0200 From: Robert Richter <rric@...nel.org> To: Borislav Petkov <bp@...en8.de> Cc: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...nel.org>, Arnaldo Carvalho de Melo <acme@...radead.org>, Jiri Olsa <jolsa@...hat.com>, linux-kernel@...r.kernel.org Subject: Re: [PATCH v3 00/12] perf, persistent: Add persistent events 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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