From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
To: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@redhat.com>,
linux-kernel@vger.kernel.org, David Ahern <dsahern@gmail.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Mike Galbraith <efault@gmx.de>, Namhyung Kim <namhyung@gmail.com>,
Paul Mackerras <paulus@samba.org>,
Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH V3 06/11] perf record: Add an option to force per-cpu mmaps
Date: Tue, 5 Nov 2013 11:25:45 -0300 [thread overview]
Message-ID: <20131105142545.GD22912@ghostprotocols.net> (raw)
In-Reply-To: <20131105133024.GE1071@krava.brq.redhat.com>
Em Tue, Nov 05, 2013 at 02:30:24PM +0100, Jiri Olsa escreveu:
> On Tue, Nov 05, 2013 at 03:09:30PM +0200, Adrian Hunter wrote:
> > > right, I haven't considered the hundreds CPU machine.. I just
> > > saw that it disables inherited events in my test ;-) maybe we
> > > could mentioned that somewhere, because it's not clear
> >
> > How about this:
> >
> > From: Adrian Hunter <adrian.hunter@intel.com>
> >
> > By default, when tasks are specified (i.e. -p, -t
> > or -u options) per-thread mmaps are created. Add
> > an option to override that and force per-cpu mmaps.
> >
> > Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
>
> seems ok, thanks
Much better, but may I ask that the explanation in the man pages be
present in the changeset commit as well? So that by just looking at 'git
log' we can more readily get the whole picture, i.e. scalability versus
wanting to have inherit.
- Arnaldo
> Acked-by: Jiri Olsa <jolsa@redhat.com>
>
> jirka
next prev parent reply other threads:[~2013-11-05 14:25 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-01 13:51 [PATCH V3 00/11] perf tools: fixes and tweaks Adrian Hunter
2013-11-01 13:51 ` [PATCH V3 01/11] perf evsel: Add a debug print if perf_event_open fails Adrian Hunter
2013-11-04 20:20 ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-11-01 13:51 ` [PATCH V3 02/11] perf script: Set up output options for in-stream attributes Adrian Hunter
2013-11-04 20:20 ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-11-01 13:51 ` [PATCH V3 03/11] perf tools: Fix 32-bit cross build Adrian Hunter
2013-11-04 20:20 ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-11-01 13:51 ` [PATCH V3 04/11] perf tools: Fix libunwind build and feature detection for 32-bit build Adrian Hunter
2013-11-04 20:20 ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-11-01 13:51 ` [PATCH V3 05/11] perf evlist: Add a debug print if event buffer mmap fails Adrian Hunter
2013-11-04 20:20 ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-11-01 13:51 ` [PATCH V3 06/11] perf record: Add an option to force per-cpu mmaps Adrian Hunter
[not found] ` <20131104152942.GA4004@krava.brq.redhat.com>
2013-11-05 8:28 ` Adrian Hunter
2013-11-05 9:42 ` Jiri Olsa
2013-11-05 13:09 ` Adrian Hunter
2013-11-05 13:30 ` Jiri Olsa
2013-11-05 14:25 ` Arnaldo Carvalho de Melo [this message]
2013-11-05 17:31 ` Arnaldo Carvalho de Melo
2013-11-08 7:57 ` Adrian Hunter
2013-11-08 8:40 ` Peter Zijlstra
2013-11-08 14:13 ` Arnaldo Carvalho de Melo
2013-11-11 12:06 ` Ingo Molnar
2013-11-13 2:48 ` Sukadev Bhattiprolu
2013-11-15 7:25 ` [tip:perf/urgent] " tip-bot for Adrian Hunter
2013-11-01 13:51 ` [PATCH V3 07/11] perf evsel: Always use perf_evsel__set_sample_bit() Adrian Hunter
2013-11-04 20:21 ` [tip:perf/core] perf evsel: Always use perf_evsel__set_sample_bit () tip-bot for Adrian Hunter
2013-11-01 13:51 ` [PATCH V3 08/11] perf evsel: Add missing overflow check Adrian Hunter
2013-11-04 20:21 ` [tip:perf/core] perf evsel: Add missing overflow check for TRANSACTION tip-bot for Adrian Hunter
2013-11-01 13:51 ` [PATCH V3 09/11] perf test: Update "sample parsing" test for PERF_SAMPLE_TRANSACTION Adrian Hunter
2013-11-04 20:21 ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-11-01 13:51 ` [PATCH V3 10/11] perf evsel: Add missing PERF_SAMPLE_TRANSACTION Adrian Hunter
2013-11-04 20:21 ` [tip:perf/core] perf evsel: Synthesize PERF_SAMPLE_TRANSACTION tip-bot for Adrian Hunter
2013-11-01 13:51 ` [PATCH V3 11/11] perf tools: Allow non-matching sample types Adrian Hunter
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