From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Jiri Olsa <jolsa@redhat.com>
Cc: linux-kernel@vger.kernel.org,
Adrian Hunter <adrian.hunter@intel.com>,
Borislav Petkov <bp@suse.de>,
Corey Ashford <cjashfor@linux.vnet.ibm.com>,
David Ahern <dsahern@gmail.com>, Don Zickus <dzickus@redhat.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Ingo Molnar <mingo@kernel.org>,
Jean Pihet <jean.pihet@linaro.org>,
Mike Galbraith <efault@gmx.de>,
Namhyung Kim <namhyung@kernel.org>,
Paul Mackerras <paulus@samba.org>,
Peter Zijlstra <peterz@infradead.org>,
Stephane Eranian <eranian@google.com>
Subject: Re: [RFC 00/14] perf pollfd v3
Date: Thu, 18 Sep 2014 13:04:55 -0300 [thread overview]
Message-ID: <20140918160455.GI2770@kernel.org> (raw)
In-Reply-To: <20140911213638.GC1801@kernel.org>
Em Thu, Sep 11, 2014 at 06:36:38PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Thu, Sep 11, 2014 at 10:30:29AM -0300, Arnaldo Carvalho de Melo escreveu:
> > Em Thu, Sep 11, 2014 at 01:48:25PM +0200, Jiri Olsa escreveu:
> > > so the reason was that my fd lib stuff did not get rebuilt..
> >
> > Thanks a lot! I missed that one, will fold it into the patch that
> > introduces fdarray and add a v2: comment attributing credit to you, so
> > that bisection works.
>
> > > you probably want to add attached change, before there's the
> > > fix for the apik library
>
> Done, need just to move that fcntl O_NONBLOCK from fdarray__add() to
> perf_evlist__add_pollfd(), what I have now is at:
>
> https://git.kernel.org/cgit/linux/kernel/git/acme/linux.git/log/?h=perf/fdarray.v3
>
> In case you want to see if itaddresses your concerns.
>
> The last cset should address what you pointed out about unmapping only
> when the events gets completely drained from the ring buffer.
>
> I'll do the fcntl() fix, test your drain-last-events scenario and
> repost.
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 :-)
- Arnaldo
next prev parent reply other threads:[~2014-09-18 16:05 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-10 14:08 [RFC 00/14] perf pollfd v3 Arnaldo Carvalho de Melo
2014-09-10 14:08 ` [PATCH 01/14] perf evlist: Introduce perf_evlist__filter_pollfd method Arnaldo Carvalho de Melo
2014-09-10 14:08 ` [PATCH 02/14] perf tests: Add test for perf_evlist__filter_pollfd() Arnaldo Carvalho de Melo
2014-09-10 14:08 ` [PATCH 03/14] perf evlist: Monitor POLLERR and POLLHUP events too Arnaldo Carvalho de Melo
2014-09-10 14:08 ` [PATCH 04/14] perf evlist: We need to poll all event file descriptors Arnaldo Carvalho de Melo
2014-09-10 14:08 ` [PATCH 05/14] perf record: Filter out POLLHUP'ed " Arnaldo Carvalho de Melo
2014-09-10 14:08 ` [PATCH 06/14] perf trace: " Arnaldo Carvalho de Melo
2014-09-10 14:08 ` [PATCH 07/14] perf evlist: Allow growing pollfd on add method Arnaldo Carvalho de Melo
2014-09-10 14:08 ` [PATCH 08/14] perf tests: Add pollfd growing test Arnaldo Carvalho de Melo
2014-09-10 14:08 ` [PATCH 09/14] perf kvm stat live: Use perf_evlist__add_pollfd() instead of local equivalent Arnaldo Carvalho de Melo
2014-09-10 14:08 ` [PATCH 10/14] perf evlist: Introduce poll method for common code idiom Arnaldo Carvalho de Melo
2014-09-10 14:08 ` [PATCH 11/14] tools lib api: Adopt fdarray class from perf's evlist Arnaldo Carvalho de Melo
2014-09-11 15:09 ` [PATCH] tools lib fd array: Do not set fd as non blocking evlist Jiri Olsa
2014-09-11 15:27 ` Arnaldo Carvalho de Melo
2014-09-11 15:53 ` Arnaldo Carvalho de Melo
2014-09-12 12:58 ` [PATCH 11/14] tools lib api: Adopt fdarray class from perf's evlist Jiri Olsa
2014-09-12 13:44 ` Arnaldo Carvalho de Melo
2014-09-12 14:16 ` Jiri Olsa
2014-09-12 14:22 ` Arnaldo Carvalho de Melo
2014-09-12 16:54 ` Borislav Petkov
2014-09-12 20:48 ` Arnaldo Carvalho de Melo
2014-09-12 22:12 ` Borislav Petkov
2014-09-22 12:29 ` Jiri Olsa
2014-09-10 14:08 ` [PATCH 12/14] perf evlist: Refcount mmaps Arnaldo Carvalho de Melo
2014-09-10 14:08 ` [PATCH 13/14] tools lib fd array: Allow associating an integer cookie with each entry Arnaldo Carvalho de Melo
2014-09-11 10:33 ` Jiri Olsa
2014-09-11 13:29 ` Arnaldo Carvalho de Melo
2014-09-11 14:59 ` Jiri Olsa
2014-09-11 15:23 ` Arnaldo Carvalho de Melo
2014-09-11 15:35 ` Jiri Olsa
2014-09-11 15:49 ` Arnaldo Carvalho de Melo
2014-09-11 16:07 ` Jiri Olsa
2014-09-10 14:08 ` [PATCH 14/14] perf evlist: Unmap ring buffer when fd is nuked Arnaldo Carvalho de Melo
2014-09-11 12:27 ` Jiri Olsa
2014-09-11 13:40 ` Arnaldo Carvalho de Melo
2014-09-11 11:33 ` [RFC 00/14] perf pollfd v3 Jiri Olsa
2014-09-11 11:48 ` Jiri Olsa
2014-09-11 13:30 ` Arnaldo Carvalho de Melo
2014-09-11 21:36 ` Arnaldo Carvalho de Melo
2014-09-18 16:04 ` Arnaldo Carvalho de Melo [this message]
2014-09-22 13:35 ` Jiri Olsa
2014-09-22 14:49 ` Arnaldo Carvalho de Melo
2014-09-22 14:51 ` Jiri Olsa
2014-09-22 21:10 ` Arnaldo Carvalho de Melo
2014-09-23 9:26 ` Jiri Olsa
2014-09-23 12:46 ` Arnaldo Carvalho de Melo
2014-09-23 12:52 ` Jiri Olsa
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