linux-kernel - Re: [RFC 00/14] perf pollfd v3

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Message-ID: <20140922145133.GA18809@krava.brq.redhat.com>
Date:	Mon, 22 Sep 2014 16:51:33 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Adrian Hunter <adrian.hunter@...el.com>,
	Borislav Petkov <bp@...e.de>,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	David Ahern <dsahern@...il.com>,
	Don Zickus <dzickus@...hat.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Jean Pihet <jean.pihet@...aro.org>,
	Mike Galbraith <efault@....de>,
	Namhyung Kim <namhyung@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [RFC 00/14] perf pollfd v3

On Mon, Sep 22, 2014 at 11:49:49AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Mon, Sep 22, 2014 at 03:35:26PM +0200, Jiri Olsa escreveu:
> > On Thu, Sep 18, 2014 at 01:04:55PM -0300, Arnaldo Carvalho de Melo wrote:
> > > Em Thu, Sep 11, 2014 at 06:36:38PM -0300, Arnaldo Carvalho de Melo escreveu:
> > > Done, updated it there:
> > > 
> > > https://git.kernel.org/cgit/linux/kernel/git/acme/linux.git/log/?h=perf/fdarray.v4
> > > 
> > > Its on top of my last perf/core branch, i.e. with builtin-record.c using
> > > perf_evlist__mmap_consume() and it and builtin-trace.c doing one last
> > > mmap_read loop to consume what is left after all fds for a mmap are
> > > closed.
> > > 
> > > I'll wait a bit before reposting, probably Jiri will not be able to
> > > comment this week, but I would like to at least post the URL for this
> > > latest v4 kit.
> > > 
> > > Adrian, if you could take a look at it, would be really great :-)
> > 
> > I checked the branch.. the last patch brakes the functionality
> > of perf record for me
> 
> Breaks in what sense?

perf record -p pid

and killing the pid won't finish perf record

jirka
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